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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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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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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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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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11/29/1988
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Application #:
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07095530
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Filing Dt:
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09/10/1987
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Title:
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ARMATURE FOR DC MOTOR
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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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07106935
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Filing Dt:
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10/08/1987
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Title:
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NARROW CONTOUR HEAD ASSEMBLY
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Patent #:
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Issue Dt:
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10/17/1989
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Application #:
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07127625
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Filing Dt:
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12/01/1987
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Title:
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BRUSHLESS DC MOTOR
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Patent #:
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Issue Dt:
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03/13/1990
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Application #:
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07141061
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Filing Dt:
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01/05/1988
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Title:
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STORED DATA ERROR CORRECTION SYSTEM
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Patent #:
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Issue Dt:
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09/05/1989
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Application #:
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07149495
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Filing Dt:
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01/28/1988
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Title:
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METHOD OF AND APPARATUS FOR DRIVING THREE-PHASE D.C. BRUSHLESS MOTOR
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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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04/17/1990
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Application #:
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07191617
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Filing Dt:
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05/09/1988
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Title:
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CARTRIDGE LOADER
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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:
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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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06/09/1992
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Application #:
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07369713
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Filing Dt:
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06/22/1989
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Title:
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MAGNETO-OPTIC RECORDING MEDIUM WITH ORIENTED LANGMUIR-BLODGETT PROTECTIVE LAYER
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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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08/04/1992
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Application #:
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07373323
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Filing Dt:
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06/28/1989
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Title:
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ERROR DETECTION AND CORRECTION SYSTEM FOR LONG BURST ERRORS
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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:
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05/12/1992
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Application #:
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07382251
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Filing Dt:
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07/19/1989
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Title:
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HYDRODYNAMIC BEARING
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Patent #:
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Issue Dt:
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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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|
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Patent #:
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|
Issue Dt:
|
07/09/1991
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Application #:
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07413468
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Filing Dt:
|
09/27/1989
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Title:
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DISK DRIVE HUB ASSEMBLY
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Patent #:
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|
Issue Dt:
|
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:
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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:
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12/18/1990
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Application #:
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07435002
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Filing Dt:
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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:
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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:
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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:
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10/08/1991
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Application #:
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07462562
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Filing Dt:
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01/09/1990
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Title:
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TAPE HEAD WITH LOW SPACING LOSS PRODUCED BY NARROW AND WIDE WEAR REGIONS
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Patent #:
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|
Issue Dt:
|
04/28/1992
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Application #:
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07490504
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Filing Dt:
|
02/28/1990
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Title:
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CONTINUOUS-PLUS-EMBEDDED SERVO DATA POSITION CONTROL SYSTEM FOR MAGNETIC DISK DEVICE
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Patent #:
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Issue Dt:
|
03/10/1992
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Application #:
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07502323
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Filing Dt:
|
03/01/1991
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Title:
|
VELOCITY ESTIMATOR IN A DISK DRIVE POSITIONING SYSTEM
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|
|
Patent #:
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|
Issue Dt:
|
02/16/1993
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Application #:
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07502513
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Filing Dt:
|
03/01/1991
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Title:
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HIGH SPEED SWITCHED AUTOMATIC GAIN CONTROL
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Patent #:
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|
Issue Dt:
|
03/24/1992
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Application #:
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07502514
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Filing Dt:
|
03/07/1991
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Title:
|
METHOD OF AUTOMATIC GAIN CONTROL BASIS SELECTION AND METHOD OF HALF-TRACK SERVOING
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Patent #:
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|
Issue Dt:
|
09/21/1993
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Application #:
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07502612
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Filing Dt:
|
03/30/1990
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Title:
|
AUTOMATIC CORRECTION OF POSITION DEMODULATOR OFFSETS
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|
|
Patent #:
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|
Issue Dt:
|
05/19/1992
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Application #:
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07502921
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Filing Dt:
|
03/04/1991
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Title:
|
FAULT TOELRANT FRAME, GUARDBAND AND INDEX DETECTION METHODS
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|
|
Patent #:
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|
Issue Dt:
|
10/29/1991
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Application #:
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07509051
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Filing Dt:
|
04/13/1990
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Title:
|
DISK FILE SERVO LOOP WITH IMPROVED TRACK SETTLING
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|
|
Patent #:
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|
Issue Dt:
|
01/26/1993
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Application #:
|
07510548
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Filing Dt:
|
04/18/1990
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Title:
|
METHOD AND APPARATUS FOR ALIGNING CARTRIDGES WITH A CARTRIDGE INSERTION SLOT
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|
|
Patent #:
|
|
Issue Dt:
|
03/30/1993
|
Application #:
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07521575
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Filing Dt:
|
05/10/1990
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Title:
|
SOLID STATE MEMORY ARRAY USING ADDRESS BLOCK BIT SUBSTITUTION TO COMPENSATE FOR NON-FUNCTIONAL STORAGE CELLS
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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:
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05/21/1990
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Title:
|
TRACK AND HOLD PHASE LOCKED LOOP CIRCUIT
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|
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Patent #:
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|
Issue Dt:
|
10/20/1992
|
Application #:
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07531993
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Filing Dt:
|
05/31/1990
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Title:
|
STORAGE MODULE CHANGER FOR A COMPUTER DATA STORAGE DRIVE
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|
|
Patent #:
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|
Issue Dt:
|
04/14/1992
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Application #:
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07545926
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Filing Dt:
|
06/29/1990
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Title:
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TRANSVERSE POSITIONER FOR READ/WRITE HEAD
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|
|
Patent #:
|
|
Issue Dt:
|
03/30/1993
|
Application #:
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07546025
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Filing Dt:
|
06/29/1990
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Title:
|
APPARATUS FOR ADJUSTING A TAPE HEAD FOR A MAGNETIC TAPE
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|
|
Patent #:
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|
Issue Dt:
|
07/27/1993
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Application #:
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07546060
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Filing Dt:
|
06/29/1990
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Title:
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COMBINED MEDIA CARTRIDGE LOADER AND ASSOCIATED MAGAZINE
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|
|
Patent #:
|
|
Issue Dt:
|
07/27/1993
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Application #:
|
07546089
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Filing Dt:
|
06/29/1990
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Title:
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MAGAZINE AND RECEIVER FOR MEDIA CARTRIDGE LOADER
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|
|
Patent #:
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|
Issue Dt:
|
10/20/1992
|
Application #:
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07546280
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Filing Dt:
|
06/29/1990
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Title:
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MAGNETIC POLE CONFIGURATION FOR HIGH DENSITY THIN FILM RECORDING HEAD
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Patent #:
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|
Issue Dt:
|
11/10/1992
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Application #:
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07546386
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Filing Dt:
|
06/29/1990
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Title:
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APPARATUS FOR WRITING SERVO INFORMATION ONTO A MAGNETIC DISK
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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:
|
HEAD POSITIONING ASSEMBLY
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|
|
Patent #:
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|
Issue Dt:
|
07/13/1993
|
Application #:
|
07602262
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Filing Dt:
|
12/24/1990
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Title:
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TAPE DRIVE HAVING A SELECTIVELY RETRACTABLE DRIVE HUB
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|
|
Patent #:
|
|
Issue Dt:
|
09/15/1992
|
Application #:
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07612768
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Filing Dt:
|
11/14/1990
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Title:
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DISK DRIVE
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|
|
Patent #:
|
|
Issue Dt:
|
06/02/1992
|
Application #:
|
07613469
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Filing Dt:
|
11/07/1990
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Title:
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ADJUSTABLE FOLDING HAY RAKING AND WINDROWING APPARATUS
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|
|
Patent #:
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|
Issue Dt:
|
12/22/1992
|
Application #:
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07619893
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Filing Dt:
|
11/29/1990
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Title:
|
COMPACT MULTIPLE ROLLER TAPE GUIDE ASSEMBLY
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|
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Patent #:
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|
Issue Dt:
|
02/18/1992
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Application #:
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07620465
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Filing Dt:
|
11/29/1990
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Title:
|
NON-SLIP TACHOMETER ROLLER
|
|
|
Patent #:
|
|
Issue Dt:
|
05/11/1993
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Application #:
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07626793
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Filing Dt:
|
12/12/1990
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Title:
|
ADJUSTABLE THRESHOLD FOR BUFFER MANAGEMENT
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|
|
Patent #:
|
|
Issue Dt:
|
06/23/1992
|
Application #:
|
07633192
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Filing Dt:
|
12/28/1990
|
Title:
|
METHOD OF PRODUCING A SEMICONDUCTOR DEVICE USING A WIRE MASK HAVING A SPECIFIED DIAMETER
|
|
|
Patent #:
|
|
Issue Dt:
|
01/14/1992
|
Application #:
|
07652134
|
Filing Dt:
|
02/07/1991
|
Title:
|
METHOD OF MAKING A DUAL STRIPE MAGNETIC HEAD
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|
|
Patent #:
|
|
Issue Dt:
|
02/21/1995
|
Application #:
|
07652870
|
Filing Dt:
|
02/08/1991
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Title:
|
ADDRESSING TECHNIQUE FOR A FAULT TOLERANT BLOCK-STRUCTURED STORAGE DEVICE
|
|
|
Patent #:
|
|
Issue Dt:
|
11/16/1993
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Application #:
|
07654499
|
Filing Dt:
|
02/13/1991
|
Title:
|
METHOD AND APPARATUS FOR ENCODING DATA FOR STORAGE ON MAGNETIC TAPE
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|
|
Patent #:
|
|
Issue Dt:
|
10/19/1993
|
Application #:
|
07678086
|
Filing Dt:
|
03/29/1991
|
Title:
|
ADJUSTABLE WRITE EQUALIZATION FOR TAPE DRIVES
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|
|
Patent #:
|
|
Issue Dt:
|
10/12/1993
|
Application #:
|
07679668
|
Filing Dt:
|
04/03/1991
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Title:
|
RAW ERROR MONITORING AND REPORTING
|
|
|
Patent #:
|
|
Issue Dt:
|
06/02/1992
|
Application #:
|
07689680
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Filing Dt:
|
04/23/1991
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Title:
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DATA TRANSDUCER POSITION CONTROL SYSTEM FOR ROTATING DISK DATA STORAGE EQUIPMENT
|
|
|
Patent #:
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|
Issue Dt:
|
06/08/1993
|
Application #:
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07691760
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Filing Dt:
|
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:
|
06/01/1993
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Application #:
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07692107
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Filing Dt:
|
04/26/1991
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Title:
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METHOD FOR OPTIMIZED TAPE TENSION ADJUSTMENT FOR A TAPE DRIVE.
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Patent #:
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Issue Dt:
|
05/25/1993
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Application #:
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07693449
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Filing Dt:
|
04/29/1991
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Title:
|
MAGNETIC CONTACT RECORDING HEAD FOR OPERATION WITH TAPES OF VARYING THICKNESSES
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|
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Patent #:
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Issue Dt:
|
01/28/1992
|
Application #:
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07717874
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Filing Dt:
|
06/12/1991
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Title:
|
HEAD POSITION CONTROL SYSTEM FOR FIXED DRIVE INCLUDING POSITION ENCODER, TEMPERATURE SENSOR AND EMBEDDED FINE SERVO INFORMATION
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|
|
Patent #:
|
|
Issue Dt:
|
06/16/1992
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Application #:
|
07731285
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Filing Dt:
|
07/16/1991
|
Title:
|
ELECTROMAGNETIC HEAD HAVING INTERFERENCE COMPENSATION CIRCUITRY
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|
|
Patent #:
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|
Issue Dt:
|
11/03/1992
|
Application #:
|
07753003
|
Filing Dt:
|
08/23/1991
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Title:
|
DISK ASSEMBLY WITH THERMALLY ISOLATED IN-HUB SPINDLE MOTOR
|
|
|
Patent #:
|
|
Issue Dt:
|
11/23/1993
|
Application #:
|
07769036
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Filing Dt:
|
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:
|
04/06/1993
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Application #:
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07770603
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Filing Dt:
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10/03/1991
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Title:
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NON-SLIP TACHOMETER ROLLER
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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:
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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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05/12/1992
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Application #:
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07772476
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Filing Dt:
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10/07/1991
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Title:
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METHOD FOR PROVIDING A LUBRICANT COATING ON THE SURFACE OF A MAGNETO- OPTICAL DISK AND RESULTING OPTICAL DISK
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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:
|
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:
|
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:
|
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:
|
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:
|
02/22/1994
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Application #:
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07888941
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Filing Dt:
|
05/26/1992
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Title:
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METHOD AND APPARATUS FOR VARIABLE DENSITY READ-AFTER-WRITING ON MAGNETIC TAPE
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Patent #:
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|
Issue Dt:
|
07/02/1996
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Application #:
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07890029
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Filing Dt:
|
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:
|
08/30/1994
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Application #:
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07897164
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Filing Dt:
|
06/11/1992
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Title:
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DATA FORMATER/CONVERTER FOR USE WITH SOLID-STATE DISK MEMORY USING STORAGE DEVICES WITH DEFECTS
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Patent #:
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|
Issue Dt:
|
04/26/1994
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Application #:
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07903694
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Filing Dt:
|
06/24/1992
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Title:
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MAGNETIC HEAD FOR VERY HIGH TRACK DENSITY MAGNETIC RECORDING
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|
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Patent #:
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|
Issue Dt:
|
01/16/1996
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Application #:
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07905083
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Filing Dt:
|
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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|
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Patent #:
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|
Issue Dt:
|
12/06/1994
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Application #:
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07926743
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Filing Dt:
|
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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|
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Patent #:
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|
Issue Dt:
|
07/05/1994
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Application #:
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07930740
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Filing Dt:
|
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:
|
03/02/1993
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Application #:
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07931110
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Filing Dt:
|
08/17/1992
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Title:
|
MECHANISMS FOR A CLOSED LOOP HEAD POSITIONER FOR STREAMING TAPE DRIVES
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|
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Patent #:
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|
Issue Dt:
|
02/13/1996
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Application #:
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07942256
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Filing Dt:
|
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:
|
07/05/1994
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Application #:
|
07950457
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Filing Dt:
|
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:
|
01/31/1995
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Application #:
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07951055
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Filing Dt:
|
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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|
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Patent #:
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|
Issue Dt:
|
09/26/1995
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Application #:
|
07951602
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Filing Dt:
|
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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|
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Patent #:
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|
Issue Dt:
|
03/28/1995
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Application #:
|
07955103
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Filing Dt:
|
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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|