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Patent #:
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Issue Dt:
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02/05/1985
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Application #:
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06280127
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Filing Dt:
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07/02/1981
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Title:
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METHOD AND APPARATUS FOR NORMALIZING SERVO-POSITIONING SIGNALS
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Patent #:
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Issue Dt:
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07/24/1984
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Application #:
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06280137
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Filing Dt:
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07/02/1981
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Title:
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METHOD FOR CONTROLLING A DISC HEAD
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Patent #:
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Issue Dt:
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09/18/1984
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Application #:
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06280138
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Filing Dt:
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07/02/1981
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Title:
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DATA RECORD WITH PRE-RECORDED TRANSDUCER POSITIONING SIGNALS, AND SYSTEM FOR UTILIZING SAME
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Patent #:
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Issue Dt:
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08/28/1984
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Application #:
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06280139
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Filing Dt:
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07/02/1981
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Title:
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POSITIONER APPARATUS FOR TAPE RECORDER HEADS
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Patent #:
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Issue Dt:
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11/08/1983
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Application #:
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06309573
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Filing Dt:
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10/08/1981
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Title:
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STREAMING CARTRIDGE TAPE DRIVE
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Patent #:
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Issue Dt:
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08/14/1984
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Application #:
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06333309
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Filing Dt:
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12/22/1981
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Title:
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DIGITAL TAPE ERASURE CONDITIONING SYSTEM
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Patent #:
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Issue Dt:
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02/05/1985
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Application #:
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06360696
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Filing Dt:
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03/22/1982
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Title:
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TAPE CARTRIDGE RECEPTACLE
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Patent #:
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Issue Dt:
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07/10/1984
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Application #:
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06369564
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Filing Dt:
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04/19/1982
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Title:
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DISK CARTRIDGE
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Patent #:
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Issue Dt:
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02/19/1985
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Application #:
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06385082
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Filing Dt:
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06/04/1982
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Title:
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CAPSTANLESS MAGNETIC TAPE DRIVE WITH ELECTRONIC EQUIVALENT TO LENGTH OF TAPE
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Patent #:
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Issue Dt:
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02/25/1986
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Application #:
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06441762
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Filing Dt:
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11/15/1982
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Title:
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CARTRIDGE TAPE DRIVE
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Patent #:
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Issue Dt:
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09/10/1985
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Application #:
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06444712
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Filing Dt:
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11/26/1982
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Title:
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RECORDING SYSTEM FOR RECORDING DATA ON TAPE IN A DISK-RECORDING FORMAT
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Patent #:
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Issue Dt:
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12/17/1985
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Application #:
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06444834
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Filing Dt:
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11/26/1982
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Title:
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TAPE CARTRIDGE DRIVE WITH MOVABLE READ/WRITE HEAD
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Patent #:
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Issue Dt:
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10/15/1985
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Application #:
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06542050
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Filing Dt:
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10/14/1983
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Title:
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METHOD OF ATTACHING ELECTRICAL CONDUCTORS TO THIN FILM MAGNETIC TRANSDUCER
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Patent #:
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Issue Dt:
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02/18/1986
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Application #:
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06542051
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Filing Dt:
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10/14/1983
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Title:
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METHOD OF MANUFACTURING A MAGNETIC HEAD ASSEMBLY AND PRODUCT
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Patent #:
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Issue Dt:
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10/30/1990
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Application #:
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06542052
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Filing Dt:
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10/14/1983
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Title:
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MAGNETIC HEAD ASSEMBLY HAVING A TRANSVERSE GUIDING SURFACE FORMED OF A MIXTURE OF ALUMINUM OXIDE AND TITANIUM CARBIDE
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Patent #:
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Issue Dt:
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11/20/1990
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Application #:
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06542100
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Filing Dt:
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10/14/1983
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Title:
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READ WHILE WRITE MAGNETIC HEAD ASSEMBLY
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Patent #:
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Issue Dt:
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12/03/1985
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Application #:
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06555373
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Filing Dt:
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11/28/1983
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Title:
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TAPE CARTRIDGE DRIVE WITH CARTRIDGE DOOR OPENING MECHANISM
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Patent #:
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Issue Dt:
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04/29/1986
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Application #:
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06589007
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Filing Dt:
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03/13/1984
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Title:
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METHOD AND APPARATUS FOR PRE-RECORDING TRACKING INFORMATION ON MAGNETIC MEDIA
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Patent #:
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Issue Dt:
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03/03/1987
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Application #:
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06589146
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Filing Dt:
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03/13/1984
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Title:
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MINIATURIZED CARTRIDGE-TYPE TAPE DRIVE FOR DATA PROCESSORS
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Patent #:
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Issue Dt:
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02/17/1987
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Application #:
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06594940
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Filing Dt:
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03/29/1984
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Title:
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CIRCUIT AND METHODOLOGY FOR READING AND TRACKING BINARY DATA FROM MAGNETIC TAPE INDEPENDENTLY OF THE DATA PATTERN ON THE TAPE
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Patent #:
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Issue Dt:
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02/24/1987
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Application #:
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06597012
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Filing Dt:
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04/05/1984
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Title:
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METHOD AND APPARATUS FOR POSITIONING TRANSDUCERS BY DIGITAL CONVERSION OF ANALOG-TYPE SIGNALS
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Patent #:
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Issue Dt:
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09/02/1986
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Application #:
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06614519
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Filing Dt:
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05/29/1984
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Title:
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A PRECISION BEARING FOR RECIPROCATING A MAGNETIC HEAD
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Patent #:
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Issue Dt:
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06/09/1987
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Application #:
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06794070
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Filing Dt:
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11/01/1985
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Title:
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SYSTEM FOR TRANSFERRING DIGITAL DATA BETWEEN A HOST DEVICE AND A RECORDING MEDIUM
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Patent #:
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Issue Dt:
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11/03/1987
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Application #:
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06794503
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Filing Dt:
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11/01/1985
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Title:
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TRANSPORT FOR TAPE CARTRIDGE WITH LEADER BLOCK
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Patent #:
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Issue Dt:
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01/03/1989
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Application #:
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06830559
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Filing Dt:
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02/18/1986
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Title:
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SYSTEM AND METHOD FOR ENCODING AND STORING DIGITAL INFORMATION ON MAGNETIC TAPE
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Patent #:
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Issue Dt:
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06/30/1987
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Application #:
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06831857
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Filing Dt:
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02/24/1986
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Title:
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ENDWISE LOADED CARTRIDGE TAPE DRIVE
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Patent #:
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Issue Dt:
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11/15/1988
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Application #:
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06842739
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Filing Dt:
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03/24/1986
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Title:
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CARTRIDGE ALIGNMENT MECHANISM FOR TAPE DRIVE
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Patent #:
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Issue Dt:
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05/24/1988
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Application #:
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06849146
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Filing Dt:
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04/07/1986
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Title:
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MAGNETIC HEAD POSITIONING APPARATUS
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Patent #:
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Issue Dt:
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01/05/1988
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Application #:
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06855608
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Filing Dt:
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04/23/1986
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Title:
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STEPPING MOTOR EXCITATION SEQUENCES
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Patent #:
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Issue Dt:
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04/04/1989
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Application #:
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06915734
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Filing Dt:
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10/06/1986
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Title:
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MAGNETIC TRANSDUCER HEAD STRUCTURE
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Patent #:
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Issue Dt:
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06/06/1989
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Application #:
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06928471
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Filing Dt:
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11/07/1986
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Title:
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CIRCUIT FOR CONTROLLING FREQUENCY AND PHASE OF VOLTAGE CONTROLLED OSCILLATOR IN A DATA SMOOTHER FOR A STREAMING CARTRIDGE TAPE DRIVE
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Patent #:
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Issue Dt:
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03/28/1989
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Application #:
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06928472
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Filing Dt:
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11/07/1986
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Title:
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CIRCUIT FOR PROVDING A SYMMETRIC CURRENT TO THE HEAD OF A MAGNETIC RECORDING DEVICE
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Patent #:
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Issue Dt:
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02/21/1989
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Application #:
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07009448
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Filing Dt:
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02/02/1987
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Title:
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CARTRIDGE TAPE DRIVE
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Patent #:
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Issue Dt:
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07/18/1989
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Application #:
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07036915
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Filing Dt:
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04/10/1987
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Title:
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TRANSDUCER HEAD CORE STRUCTURE WITH RECESSED MAGNETIC CLOSURES
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Patent #:
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Issue Dt:
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11/28/1989
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Application #:
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07078909
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Filing Dt:
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07/28/1987
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Title:
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THIN FILM MAGNETIC HEAD WITH COIL WINDINGS RECEIVING TRENCH
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Patent #:
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Issue Dt:
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10/03/1989
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Application #:
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07078911
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Filing Dt:
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07/28/1987
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Title:
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THIN FILM MAGNETIC HEAD WITH A LEVELER LAYER
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Patent #:
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Issue Dt:
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08/15/1989
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Application #:
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07152384
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Filing Dt:
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02/04/1988
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Title:
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STREAMING TAPE DRIVE WITH DIRECT BLOCK ADDRESSABILITY
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Patent #:
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Issue Dt:
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02/28/1989
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Application #:
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07195408
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Filing Dt:
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05/16/1988
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Title:
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TRANSPORT FOR TAPE CARTRIDGE WITH LEADER BLOCK
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Patent #:
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Issue Dt:
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03/26/1991
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Application #:
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07228318
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Filing Dt:
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08/04/1988
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Title:
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METHOD AND APPARATUS FOR REMOVING DATA STREAM VARIATIONS
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Patent #:
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Issue Dt:
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05/23/1989
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Application #:
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07239302
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Filing Dt:
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09/01/1988
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Title:
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COMPENSATION CIRCUIT FOR NULLIFYING DIFFERENTIAL OFFSET VOLTAGE AND REGULATING COMMON MODE VOLTAGE OF DIFFERENTIAL SIGNALS
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Patent #:
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Issue Dt:
|
09/04/1990
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Application #:
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07241090
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Filing Dt:
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09/06/1988
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Title:
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MAGNETIC TRANSDUCER HEAD STRUCTURE WITH REDUCED LEAKAGE BETWEEN CORE CIRCUITS
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Patent #:
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Issue Dt:
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08/01/1989
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Application #:
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07244694
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Filing Dt:
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09/14/1988
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Title:
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EXTRACTION AND INSERTION MECHANISM FOR A LEADER BLOCK OF A TAPE CARTRIDGE
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Patent #:
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Issue Dt:
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03/19/1991
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Application #:
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07314376
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Filing Dt:
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02/22/1989
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Title:
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HEAD-POSITIONER ARM FOR DATA RECORDERS
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Patent #:
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Issue Dt:
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09/17/1991
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Application #:
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07314454
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Filing Dt:
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02/22/1989
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Title:
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LEAD SCREW AND FOLLOWER-TYPE HEAD POSITIONER FOR DATA RECORDERS
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Patent #:
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Issue Dt:
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06/12/1990
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Application #:
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07314979
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Filing Dt:
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02/24/1989
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Title:
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SELF-ALIGNING TACHOMETER AND METHOD OF MANUFACTURING SAME
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Patent #:
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Issue Dt:
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10/08/1991
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Application #:
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07321915
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Filing Dt:
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03/10/1989
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Title:
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METHOD AND APPARATUS FOR SERVO-POSITIONING MOVABLE TRANSDUCER HEADS
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Patent #:
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Issue Dt:
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04/28/1992
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Application #:
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07342985
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Filing Dt:
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04/25/1989
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Title:
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STATIONARY HEAD TAPE DRIVE WITH A MOVABLE DOOR OPENING MECHANISM
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Patent #:
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Issue Dt:
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05/29/1990
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Application #:
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07371416
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Filing Dt:
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06/15/1989
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Title:
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DRIVE FOR END LOADING AND TRANSVERSELY SHIFTING TAPE CARTRIDGE
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Patent #:
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Issue Dt:
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08/21/1990
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Application #:
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07375400
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Filing Dt:
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07/03/1989
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Title:
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TAPE TRANSPORT WITH RIGID ARM THREADER MECHANISM FOR LEADER BLOCK TAPE CARTRIDGE
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Patent #:
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Issue Dt:
|
02/13/1990
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Application #:
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07384750
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Filing Dt:
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07/24/1989
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Title:
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METHOD OF MAKING A THIN FILM MAGNETIC HEAD WITH A LEVELER LAYER AND SUPERSTRATE
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Patent #:
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Issue Dt:
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06/18/1991
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Application #:
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07405932
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Filing Dt:
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09/12/1989
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Title:
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AUTO-LOADING TRANSPORT FOR TAPE CARTRIDGE WITH TAPE ACCESS DOOR AND BELT CAPSTAN ROLLER
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Patent #:
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Issue Dt:
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03/19/1991
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Application #:
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07413479
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Filing Dt:
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09/27/1989
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Title:
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METHOD TO COMPENSATE FOR TAPE SLOPE AND HEAD AZIMUTH ERRORS
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Patent #:
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Issue Dt:
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10/16/1990
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Application #:
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07428096
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Filing Dt:
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10/27/1989
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Title:
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VARIABLE LOAD MOTOR DRIVE CONTROL
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Patent #:
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Issue Dt:
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12/15/1992
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Application #:
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07428501
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Filing Dt:
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10/26/1989
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Title:
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APPARATUS AND METHOD FOR AUTOMATIC WRITE CURRENT CALIBRATION IN A STREAMING TAPE DRIVE
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Patent #:
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Issue Dt:
|
01/14/1992
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Application #:
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07433586
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Filing Dt:
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11/08/1989
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Title:
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APPARATUS AND METHOD FOR AUTOMATIC ADJUSTMENT OF READ AMPLITUDE THRESHOLD IN A DIGITAL TAPE DRIVE
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Patent #:
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Issue Dt:
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09/17/1991
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Application #:
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07434036
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Filing Dt:
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11/09/1989
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Title:
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CARTRIDGE LOADER FOR LOADING EACH OF A PLURALITY OF CARTRIDGES INTO A CARTRIDGE INSERTION SLOT
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Patent #:
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Issue Dt:
|
12/18/1990
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Application #:
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07435002
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Filing Dt:
|
11/09/1989
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Title:
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DATA RANDOMIZING/DE-RANDOMIZING CIRCUIT FOR RANDOMIZING AND DE- RANDOMIZING DATA
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Patent #:
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Issue Dt:
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03/31/1992
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Application #:
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07435008
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Filing Dt:
|
11/09/1989
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|
Title:
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TAPE AND MECHANISM PROTECTION METHODS FOR DAT DRIVES
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Patent #:
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|
Issue Dt:
|
11/10/1992
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Application #:
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07436570
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Filing Dt:
|
11/13/1989
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|
Title:
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SYSTEM FOR ASSEMBLING PLAYBACK DAT DATA FRAMES USING INDEXED FRAME BUFFER GROUP ACCORDING TO LOGICAL FRAME NUMBERS IN VALID SUBCODE OR FRAME HEADER
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Patent #:
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Issue Dt:
|
01/26/1993
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Application #:
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07510548
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Filing Dt:
|
04/18/1990
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|
Title:
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METHOD AND APPARATUS FOR ALIGNING CARTRIDGES WITH A CARTRIDGE INSERTION SLOT
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Patent #:
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|
Issue Dt:
|
04/09/1991
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Application #:
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07526490
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Filing Dt:
|
05/21/1990
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Title:
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TRACK AND HOLD PHASE LOCKED LOOP CIRCUIT
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Patent #:
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Issue Dt:
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10/20/1992
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Application #:
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07531993
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Filing Dt:
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05/31/1990
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Title:
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STORAGE MODULE CHANGER FOR A COMPUTER DATA STORAGE DRIVE
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Patent #:
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|
Issue Dt:
|
03/30/1993
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Application #:
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07546025
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Filing Dt:
|
06/29/1990
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Title:
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APPARATUS FOR ADJUSTING A TAPE HEAD FOR A MAGNETIC TAPE
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Patent #:
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Issue Dt:
|
08/13/1991
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Application #:
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07564864
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Filing Dt:
|
07/06/1990
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Title:
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HEAD POSITIONING ASSEMBLY
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Patent #:
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Issue Dt:
|
01/14/1992
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Application #:
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07652134
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Filing Dt:
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02/07/1991
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Title:
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METHOD OF MAKING A DUAL STRIPE MAGNETIC HEAD
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Patent #:
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Issue Dt:
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10/19/1993
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Application #:
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07678086
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Filing Dt:
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03/29/1991
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Title:
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ADJUSTABLE WRITE EQUALIZATION FOR TAPE DRIVES
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Patent #:
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Issue Dt:
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10/12/1993
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Application #:
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07679668
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Filing Dt:
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04/03/1991
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Title:
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RAW ERROR MONITORING AND REPORTING
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Patent #:
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Issue Dt:
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06/08/1993
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Application #:
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07691760
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Filing Dt:
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04/26/1991
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Title:
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DEVICE FOR ALIGNING MAGNETIC TAPE TO A READ-WRITE HEAD
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Patent #:
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Issue Dt:
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06/16/1992
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Application #:
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07731285
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Filing Dt:
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07/16/1991
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Title:
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ELECTROMAGNETIC HEAD HAVING INTERFERENCE COMPENSATION CIRCUITRY
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Patent #:
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Issue Dt:
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11/23/1993
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Application #:
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07769036
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Filing Dt:
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09/30/1991
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Title:
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CASSETTE LOADING SYSTEM
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Patent #:
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Issue Dt:
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08/17/1993
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Application #:
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07771139
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Filing Dt:
|
10/03/1991
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Title:
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STATIONARY HEAD CARTRIDGE TAPE DRIVE WITH MOVEABLE X-Y TABLE AND METHOD
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Patent #:
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Issue Dt:
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05/10/1994
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Application #:
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07794999
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Filing Dt:
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11/15/1991
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Title:
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APPARATUS FOR PRECISE POSITIONING OF A TAPE HEAD AND PROGRAMMING THERE OF
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Patent #:
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Issue Dt:
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02/08/1994
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Application #:
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07815132
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Filing Dt:
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12/27/1991
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Title:
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MASS STORAGE AND RETRIEVAL SYSTEM FOR MAGNETIC TAPE CARTRIDGES
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Patent #:
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Issue Dt:
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10/26/1993
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Application #:
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07837728
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Filing Dt:
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02/19/1992
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Title:
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OPTICAL ALIGNMENT SYSTEM FOR ALIGNING A MULTIPLE GAP TAPE HEAD ASSEMBLY
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Patent #:
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Issue Dt:
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11/30/1993
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Application #:
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07838187
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Filing Dt:
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02/18/1992
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Title:
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ADJUSTABLE WRITE EQUALIZATION FOR TAPE DRIVES
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Patent #:
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Issue Dt:
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03/07/1995
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Application #:
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07855239
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Filing Dt:
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03/23/1992
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Title:
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MULTI-TRACK EMBEDDED SERVO RECORDING FORMAT AND METHOD
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Patent #:
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Issue Dt:
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03/28/1995
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Application #:
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07873443
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Filing Dt:
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04/24/1992
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Title:
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FIVE AND ONE-QUARTER INCH FORM FACTOR COMBINATION DAT TAPE DRIVE AND CASSETTE MAGAZINE LOADER
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Patent #:
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Issue Dt:
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07/02/1996
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Application #:
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07890029
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Filing Dt:
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05/28/1992
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Title:
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DATA STREAM SMOOTHING METHOD AND CIRCUIT FOR A TAPE DRIVE
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Patent #:
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Issue Dt:
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01/16/1996
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Application #:
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07905083
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Filing Dt:
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06/24/1992
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Title:
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SYSTEM AND METHOD FOR STORING AND RETRIEVING FILES FOR ARCHIVAL PURPOSES
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Patent #:
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Issue Dt:
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12/06/1994
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Application #:
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07926743
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Filing Dt:
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08/06/1992
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Title:
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MECHANISMS FOR A CLOSED LOOP HEAD POSITIONER FOR STREAMING TAPE DRIVES
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Patent #:
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Issue Dt:
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07/05/1994
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Application #:
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07930740
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Filing Dt:
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08/14/1992
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Title:
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TAPE FORMAT DETECTION SYSTEM
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Patent #:
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Issue Dt:
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03/02/1993
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Application #:
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07931110
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Filing Dt:
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08/17/1992
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Title:
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MECHANISMS FOR A CLOSED LOOP HEAD POSITIONER FOR STREAMING TAPE DRIVES
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Patent #:
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Issue Dt:
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02/13/1996
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Application #:
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07942256
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Filing Dt:
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09/09/1992
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Title:
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MAGNETIC HEAD GUIDANCE AND CALIBRATION SYSTEM AND METHOD DESCRIPTION
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Patent #:
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Issue Dt:
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07/05/1994
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Application #:
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07950457
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Filing Dt:
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09/24/1992
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Title:
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TAPE DRIVE CAPSTAN MOTOR SERVO SYSTEM WITH STATIC FRICTION COMPENSATION
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Patent #:
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Issue Dt:
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01/31/1995
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Application #:
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07951055
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Filing Dt:
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09/25/1992
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Title:
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TARGET MANAGEMENT METHOD FOR DATA BACKUP TO A SHARED TRANSFER STATION, MULTIPLE MEDIA ELEMENT DEVICE
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Patent #:
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Issue Dt:
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02/13/1996
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Application #:
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07951601
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Filing Dt:
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09/28/1992
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Title:
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SYSTEM AND METHOD FOR ETHERNET TO SCSI CONVERSION
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Patent #:
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Issue Dt:
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09/26/1995
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Application #:
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07951602
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Filing Dt:
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09/28/1992
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Title:
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METHOD OF EMULATING ACCESS TO A SEQUENTIAL ACCESS DATA STORAGE DEVICE WHILE ACTUALLY USING A RANDOM ACCESS STORAGE DEVICE
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Patent #:
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Issue Dt:
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06/08/1993
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Application #:
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07954798
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Filing Dt:
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09/30/1992
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Title:
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AUDIO TAPE OPERATION ON A DAT DATA STORAGE DRIVE
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Patent #:
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Issue Dt:
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03/28/1995
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Application #:
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07955103
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Filing Dt:
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10/01/1992
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Title:
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CIRCUIT FOR DETERMINING WINDOW MARGIN FOR DATA TRANSITIONS IN A STREAMING DATA DEVICE
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Patent #:
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Issue Dt:
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01/10/1995
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Application #:
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08090972
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Filing Dt:
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07/13/1993
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Title:
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METHOD FOR SELF-CLEANING DAT DRIVE TAPE HEADS
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Patent #:
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Issue Dt:
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12/17/1996
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Application #:
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08113996
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Filing Dt:
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08/30/1993
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Title:
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ARCUATE SCAN TAPE DRIVE
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Patent #:
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Issue Dt:
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10/03/1995
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Application #:
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08114492
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Filing Dt:
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08/30/1993
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Title:
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MULTI-CHANNEL ROTATING TRANSFORMER
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Patent #:
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Issue Dt:
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12/20/1994
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Application #:
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08116047
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Filing Dt:
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09/02/1993
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Title:
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APPARATUS FOR TRANSFERRING RAW DATA FROM A MAGNETIC MEDIUM COMPUTER STORAGE DEVICE
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Patent #:
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Issue Dt:
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06/04/1996
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Application #:
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08151068
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Filing Dt:
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11/12/1993
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Title:
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PROCESS FOR MANUFACTURING RECORDING HEADS FOR MAGNETIC STORAGE DEVICES
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Patent #:
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Issue Dt:
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04/01/1997
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Application #:
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08195580
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Filing Dt:
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02/14/1994
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Title:
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SYSTEM FOR RECORDING TRACK-CENTERING SERVO SIGNALS ON MULTI-TRACK MAGNETIC MEDIUM
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Patent #:
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Issue Dt:
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12/31/1996
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Application #:
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08336981
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Filing Dt:
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11/10/1994
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Title:
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BRUSHLESS MOTOR SPEED CONTROL ARRANGEMENT HAVING DERIVED COMMON MODE SUPPLY SIGNAL COMPONENT
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Patent #:
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Issue Dt:
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07/11/2000
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Application #:
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08337255
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Filing Dt:
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11/10/1994
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Title:
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ARCUAT SCAN READ/WRITE ASSEMBLY
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Patent #:
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Issue Dt:
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06/24/1997
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Application #:
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08337803
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Filing Dt:
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11/14/1994
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Title:
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ECONOMICAL WIDE RANGE SPEED CONTROL SYSTEM
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Patent #:
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Issue Dt:
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02/11/1997
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Application #:
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08361773
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Filing Dt:
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12/22/1994
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Title:
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RECORDING HEAD FOR RECORDING TRACK-CENTERING SERVO SIGNALS ON A MULTI- TRACK RECORDING MEDIUM
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Patent #:
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Issue Dt:
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12/03/1996
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Application #:
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08441604
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Filing Dt:
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05/15/1995
|
|
Title:
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BUFFERED INTELLIGENT DIGITAL TAPE CONTROLLER WITH ONBOARD ECC AND FEATURING GLOBAL CONTROL VARIABLES
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