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Patent #:
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Issue Dt:
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12/08/1987
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Application #:
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06767549
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Filing Dt:
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08/20/1985
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Title:
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METHOD AND APPARATUS FOR READING RECORDED DATA BY A MAGNETORESISTIVE HEAD
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Patent #:
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Issue Dt:
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11/10/1987
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Application #:
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06851649
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Filing Dt:
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04/14/1986
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Title:
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AMPLIFICATION OF SIGNALS PRODUCED BY A MAGNETIC SENSOR
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Patent #:
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Issue Dt:
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11/22/1988
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Application #:
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06880419
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Filing Dt:
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06/30/1986
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Title:
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VOLTAGE AMPLIFIER FOR CONSTANT VOLTAGE BIASING AND AMPLIFYING SIGNALS FROM A MR SENSOR
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Patent #:
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Issue Dt:
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04/03/1990
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Application #:
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07226634
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Filing Dt:
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08/01/1988
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Title:
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METHOD AND CIRCUITRY TO SUPPRESS ADDITIVE DISTURBANCES IN DATA CHANNELS CONTAINING MR SENSORS
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Patent #:
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Issue Dt:
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11/07/1989
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Application #:
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07250784
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Filing Dt:
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09/28/1988
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Title:
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PROTECTIVE CIRCUIT FOR A MAGNETORESISTIVE ELEMENT
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Patent #:
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Issue Dt:
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07/16/1991
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Application #:
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07449686
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Filing Dt:
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12/12/1989
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Title:
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AMPLIFICATION OF SIGNALS PRODUCED BY A MAGNETORESISTIVE ELEMENT
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Patent #:
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Issue Dt:
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04/07/1992
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Application #:
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07517093
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Filing Dt:
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05/01/1990
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Title:
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LOW NOISE AMPLIFIER WITH SHORT CIRCUIT PROTECTION FOR SIGNALS FROM MAGNETORESISTIVE ELEMENT
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Patent #:
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Issue Dt:
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12/01/1992
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Application #:
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07517783
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Filing Dt:
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05/02/1990
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Title:
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CONTROLLED MAGNETIC RECORDING HEAD RELAXATION IN A MAGNETIC RECORDING SYSTEM
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Patent #:
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Issue Dt:
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10/13/1992
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Application #:
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07605513
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Filing Dt:
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10/30/1990
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Title:
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UNSHIELDED HORIZONTAL MAGNETORESISTIVE HEAD AND METHOD OF FABRICATING SAME
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Patent #:
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Issue Dt:
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04/20/1993
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Application #:
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07648675
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Filing Dt:
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01/31/1991
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Title:
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LOW NOISE VOLTAGE-BIASING AMPLIFIER FOR MAGNETORESISTIVE ELEMENT
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Patent #:
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Issue Dt:
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08/03/1993
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Application #:
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07739020
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Filing Dt:
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07/31/1991
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Title:
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THERMAL ASPERITY COMPENSATION FOR PRML DATA DETECTION
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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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07779438
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Filing Dt:
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10/18/1991
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Title:
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INTER-SAMPLE SWITCHING OF SERVO CONTROL IN DIRECT ACCESS STORAGE DEVICES
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Patent #:
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Issue Dt:
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03/23/1993
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Application #:
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07829796
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Filing Dt:
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01/31/1992
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Title:
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METHOD AND APPARATUS FOR IMPLEMENTING PRML CODES WITH MAXIMUM ONES
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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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07843676
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Filing Dt:
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02/28/1992
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Title:
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THIN FILM MAGNETIC HEAD WITH CONFORMABLE POLE TIPS
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Patent #:
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Issue Dt:
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05/16/1995
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Application #:
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07898636
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Filing Dt:
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06/15/1992
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Title:
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TIMING LOOP METHOD AND APPARATUS FOR PRML DATA DETECTION
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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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07907766
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Filing Dt:
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06/30/1992
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Title:
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CLOCK DELAY TRIM ADJUSTMENT WITH STOPPING FEATURE FOR ELIMINATING DIFFERENTIAL DELAY BETWEEN CLOCK SIGNAL AND ANALOG SIGNAL
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Patent #:
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Issue Dt:
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12/14/1993
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Application #:
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07914278
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Filing Dt:
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07/15/1992
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Title:
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LOW-VOLTAGE, LOW-POWER AMPLIFIER FOR MAGNETORESISTIVE SENSOR
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Patent #:
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Issue Dt:
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02/21/1995
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Application #:
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07922453
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Filing Dt:
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07/30/1992
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Title:
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SYSTEM AND METHOD FOR PREVENTING DIRECT ACCESS DATA STORAGE SYSTEM DATA LOSS FROM MECHANICAL SHOCK DURING WRITE OPERATION
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Patent #:
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Issue Dt:
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02/21/1995
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Application #:
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07922591
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Filing Dt:
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07/30/1992
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Title:
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ERROR MEASUREMENT CIRCUIT
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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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07929059
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Filing Dt:
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08/13/1992
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Title:
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ASYNCHRONOUS SERVO IDENTIFICATION/ADDRESS MARK DETECTION FOR PRML DISK DRIVE SYSTEM
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Patent #:
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Issue Dt:
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01/09/1996
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Application #:
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08132611
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Filing Dt:
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10/06/1993
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Title:
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DIGITAL SERVO CONTROL SYSTEM
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Patent #:
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Issue Dt:
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06/13/1995
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Application #:
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08158820
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Filing Dt:
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11/26/1993
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Title:
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ELECTRON BEAM LITHOGRAPHY SYSTEM AND METHOD
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Patent #:
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Issue Dt:
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05/22/2001
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Application #:
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08184718
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Filing Dt:
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01/21/1994
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Title:
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SUBSTRATE INDEPENDENT SUPERPOLISHING PROCESS AND SLURRY
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Patent #:
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Issue Dt:
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05/23/1995
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Application #:
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08191679
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Filing Dt:
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02/04/1994
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Title:
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MICRO-ACTUATOR
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Patent #:
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Issue Dt:
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09/05/1995
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Application #:
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08233168
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Filing Dt:
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04/26/1994
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Title:
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METHOD AND APPARATUS FOR DETERMINING BYTE SYNCHRONIZATION WITHIN A SERIAL DATA RECEIVER
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Patent #:
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Issue Dt:
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06/25/1996
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Application #:
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08246052
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Filing Dt:
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05/19/1994
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Title:
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IMPROVED ELECTRICAL CONNECTION AND SLIDER- SUSPENSION ASSEMBLY HAVING AN IMPROVED ELECTRICAL CONNECTION
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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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08303601
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Filing Dt:
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09/09/1994
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Title:
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METHOD AND APPARATUS FOR GENERATING GAS IN A DRILLED BOREHOLE
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Patent #:
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Issue Dt:
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12/10/1996
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Application #:
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08355068
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Filing Dt:
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12/13/1994
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Title:
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SCAVENGING COMPOUND INFILTRATED GASKET
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Patent #:
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Issue Dt:
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03/27/2001
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Application #:
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08405561
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Filing Dt:
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03/16/1995
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Title:
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MICROFILE
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Patent #:
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Issue Dt:
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08/13/1996
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Application #:
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08417621
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Filing Dt:
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04/06/1995
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Title:
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PROCESS FOR PATTERNED ELECTROPLATING
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Patent #:
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Issue Dt:
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02/24/1998
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Application #:
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08430655
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Filing Dt:
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04/28/1995
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Title:
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SHOCK ISOLATION SYSTEM WITH WRITE INHIBIT
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Patent #:
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Issue Dt:
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05/14/1996
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Application #:
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08494862
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Filing Dt:
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06/26/1995
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Title:
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PATTERNED ELECTROPLATING
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Patent #:
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Issue Dt:
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10/28/1997
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Application #:
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08532956
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Filing Dt:
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09/22/1995
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Title:
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DISK DRIVE FOR PORTABLE COMPUTER WITH ADAPTIVE DEMAND-DRIVEN POWER MANAGEMENT
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Patent #:
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Issue Dt:
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01/13/1998
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Application #:
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08555781
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Filing Dt:
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11/09/1995
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Title:
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INTELLIGENT ENVELOPE DETECTOR AND METHOD FOR GAIN CONTROL FOR PRML DATA AND SERVO CHANNELS INCLUDING POLARITY DETECTION
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Patent #:
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Issue Dt:
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02/16/1999
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Application #:
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08582555
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Filing Dt:
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01/02/1996
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Title:
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METHOD AND APPARATUS FOR POSITIONING A DUAL ELEMENT MAGNETORESISTIVE HEAD USING THERMAL SIGNALS
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Patent #:
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Issue Dt:
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05/26/1998
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Application #:
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08598486
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Filing Dt:
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02/08/1996
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Title:
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METHOD AND APPARATUS FOR SERVO CONTROL WITH HIGH EFFICIENCY GRAY CODE FOR SERVO TRACK ID
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Patent #:
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Issue Dt:
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04/21/1998
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Application #:
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08599431
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Filing Dt:
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01/17/1996
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Title:
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HORIZONTAL SHARED-POLE MAGNETIC READ/WRITE HEAD HAVING POLARIZATION CONDUCTOR DISABLING WRITE POLE.
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Patent #:
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Issue Dt:
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07/22/1997
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Application #:
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08606625
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Filing Dt:
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02/26/1996
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Title:
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SYSTEM FOR RESETTING SENSOR MAGNETIZATION IN A SPIN VALVE MAGNETORESISTIVE SENSOR
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Patent #:
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Issue Dt:
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08/19/1997
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Application #:
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08613564
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Filing Dt:
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03/11/1996
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Title:
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APPARATUS FOR LASER TEXTURING DISKS
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Patent #:
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Issue Dt:
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05/07/2002
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Application #:
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08614324
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Filing Dt:
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03/12/1996
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Title:
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APPARATUS AND METHOD FOR DETECTING DEFECTS IN DATA STORAGE DEVICES
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Patent #:
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Issue Dt:
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10/13/1998
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Application #:
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08622804
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Filing Dt:
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03/27/1996
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Title:
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HIGH SPEED FET WRITE DRIVER FOR AN INDUCTIVE HEAD
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Patent #:
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Issue Dt:
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03/14/2000
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Application #:
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08626886
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Filing Dt:
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04/03/1996
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Title:
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METHOD AND APPARATUS FOR IMPROVING BASELINE RECOVERY OF AN MR HEAD USING A PROGRAMMABLE RECOVERY TIME CONSTANT
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Patent #:
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Issue Dt:
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08/11/1998
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Application #:
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08677148
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Filing Dt:
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07/09/1996
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Title:
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SELF-SERVOWRITING SYSTEM WITH DYNAMIC ERROR PROPAGATION REDUCTION
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Patent #:
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Issue Dt:
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02/26/2002
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Application #:
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08685420
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Filing Dt:
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07/22/1996
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Title:
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MINIMAL STIFFNESS CONDUCTORS FOR A HEAD GIMBAL ASSEMBLY
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Patent #:
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Issue Dt:
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08/15/2000
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Application #:
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08715174
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Filing Dt:
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09/17/1996
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Title:
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NOISE PREDICTIVE MAXIMUM LIKELIHOOD (NPML) DETECTION METHODS AND APPARATUS BASED THEREON
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Patent #:
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Issue Dt:
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11/02/1999
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Application #:
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08717918
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Filing Dt:
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09/23/1996
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Title:
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CIRCUIT AND METHOD FOR OPTIMIZING BIAS SUPPLY IN A MAGNETORESISTIVE HEAD BASED ON TEMPERATURE
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Patent #:
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Issue Dt:
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11/16/1999
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Application #:
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08718072
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Filing Dt:
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09/17/1996
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Title:
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ELECTRONIC MAGNETORESISTIVE SENSOR BIASING USING A TRANSDUCER EQUIVALENT CIRCUIT AND CURRENT SOURCES
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Patent #:
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Issue Dt:
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09/14/1999
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Application #:
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08718073
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Filing Dt:
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09/17/1996
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Title:
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HIGH CMRR AND SENSOR-DISK SHORT-CIRCUIT PROTECTION DEVICE FOR DUAL ELEMENT MAGNETORESISTIVE HEADS
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Patent #:
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Issue Dt:
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04/07/1998
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Application #:
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08728043
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Filing Dt:
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10/09/1996
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Title:
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CURRENT BOOST FOR DIFFERENTIAL FLASH ANALOG TO DIGITAL CONVERTER DRIVER
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Patent #:
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Issue Dt:
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09/29/1998
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Application #:
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08728044
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Filing Dt:
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10/09/1996
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Title:
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SPLIT FLASH ANALOG TO DIGITAL CONVERTER DIFFERENTIAL DRIVER
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Patent #:
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Issue Dt:
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08/31/1999
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Application #:
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08730862
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Filing Dt:
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10/18/1996
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Title:
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HARD DISK DRIVE READ CHANNEL WITH HALF SPEED TIMING
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Patent #:
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Issue Dt:
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03/17/1998
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Application #:
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08757422
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Filing Dt:
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11/27/1996
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Title:
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MAGNETIC TUNNEL JUNCTION DEVICE WITH LONGITUDINAL BIASING
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Patent #:
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Issue Dt:
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02/29/2000
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Application #:
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08767970
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Filing Dt:
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12/17/1996
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Title:
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METHOD AND APPARATUS FOR SERVO DATA PATTERN DETECTION
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Patent #:
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Issue Dt:
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03/07/2000
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Application #:
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08784507
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Filing Dt:
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01/17/1997
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Title:
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ELECTRONIC CIRCUIT IMPLEMENTING COMPONENT LEVEL DISK DRIVE
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Patent #:
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Issue Dt:
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02/15/2000
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Application #:
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08787595
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Filing Dt:
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01/22/1997
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Title:
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DECODER FOR SUPPRESSING ERROR PROPAGATION
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Patent #:
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Issue Dt:
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10/19/1999
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Application #:
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08842940
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Filing Dt:
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04/25/1997
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Title:
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LAPPING METHOD AND SYSTEM FOR COMPENSATING FOR SUBSTRATE BOW
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Patent #:
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Issue Dt:
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06/01/1999
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Application #:
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08878711
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Filing Dt:
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06/18/1997
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Title:
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SERVO-WRITING SYSTEM FOR USE IN A DATA RECORDING DISK DRIVE
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Patent #:
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Issue Dt:
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06/15/1999
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Application #:
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08879543
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Filing Dt:
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06/20/1997
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Title:
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SEPARATION OF DICED WAFERS
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Patent #:
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Issue Dt:
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06/29/1999
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Application #:
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08882018
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Filing Dt:
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06/03/1997
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Title:
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RECONFIGURABLE INTERFACE FOR SAMLL DISK DRIVES
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Patent #:
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Issue Dt:
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12/21/1999
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Application #:
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08891378
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Filing Dt:
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07/11/1997
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Title:
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ANALOG SIGNAL PROCESSING CIRCUIT WITH INTEGRATED GAIN AND TIMING EROR SIGNAL PROCESSING
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Patent #:
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Issue Dt:
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11/23/1999
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Application #:
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08891572
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Filing Dt:
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07/11/1997
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Title:
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SYSTEM FOR HANDLING MISSED REVOLUTION IN A DISK DRIVE BY ABORTING THE EXECUTION OF PRIMARY COMMAND AND EXECUTING SECONDARY COMMAND IF A MISSED REVOLUTION OCCURS
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Patent #:
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Issue Dt:
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10/27/1998
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Application #:
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08900771
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Filing Dt:
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07/25/1997
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Title:
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SINGLE PIECE SLOTTED FERROMAGNETIC SPUTTERING TARGET AND SPUTTERING APPARATUS
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Patent #:
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Issue Dt:
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11/16/1999
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Application #:
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08906306
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Filing Dt:
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08/05/1997
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Title:
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ADAPTIVE PULSE WIDTH MODULATED MOTOR CONTROL
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Patent #:
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Issue Dt:
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02/15/2000
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Application #:
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08908742
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Filing Dt:
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08/07/1997
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Title:
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DIGITAL DEMODULATION OF A COMPLEMENTARY TWO-FREQUENCY SERVO PES PATTERN
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Patent #:
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Issue Dt:
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09/07/1999
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Application #:
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08943779
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Filing Dt:
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10/03/1997
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Title:
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HORIZONTAL SHARED-POLE MAGNETIC READ/WRITE HEAD HAVING POLARIZATION CONDUCTOR DISABLING WRITE POLE
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Patent #:
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Issue Dt:
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09/07/1999
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Application #:
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08949986
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Filing Dt:
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10/14/1997
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Title:
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SOLDER BUMP ELECTRICAL CONNECTION AND METHOD FOR FABRICATION
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Patent #:
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Issue Dt:
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04/11/2000
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Application #:
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08962627
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Filing Dt:
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11/03/1997
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Title:
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METHOD AND APPARATUS FOR PERFORMING DIGITAL THERMAL ASPERITY DETECTION
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Patent #:
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Issue Dt:
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10/19/1999
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Application #:
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08970573
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Filing Dt:
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11/14/1997
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Title:
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PREAMPLIFIER BIAS MODE TO RE-INITIALIZE A GMR HEAD AFTER LOSING INITIALIZATION
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Patent #:
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Issue Dt:
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01/16/2001
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Application #:
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08970660
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Filing Dt:
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11/14/1997
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Title:
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HIGH INPUT IMPEDANCE SINGLE ENDED, LOW SUPPLY VOLTAGE MAGNETORESISTIVE PREAMPLIFIER CIRCUITS
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Patent #:
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Issue Dt:
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01/11/2000
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Application #:
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08985191
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Filing Dt:
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12/04/1997
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Title:
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USING A READ ELEMENT AND A READ/WRITE COUPLING PATH TO DETECT WRITE-SAFE CONDITIONS
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Patent #:
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Issue Dt:
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02/27/2001
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12/30/1997
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11/30/1999
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09000941
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12/30/1997
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Title:
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07/04/2000
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03/10/1998
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01/09/2001
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04/10/1998
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10/10/2000
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05/05/1998
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Title:
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02/25/2003
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05/14/1998
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05/16/2002
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Title:
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07/03/2001
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05/15/1998
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02/01/2000
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05/15/1998
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Title:
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05/16/2000
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05/21/1998
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04/18/2000
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05/29/1998
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12/14/1999
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06/10/1998
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11/28/2000
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06/10/1998
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10/08/2002
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06/16/1998
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09/27/2001
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Title:
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07/23/2002
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06/19/1998
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08/29/2000
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08/24/1998
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06/03/2003
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08/31/1998
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06/25/2002
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09/03/1998
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05/15/2001
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09/11/1998
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Title:
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07/31/2001
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09/18/1998
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08/27/2002
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10/02/1998
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10/22/2002
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10/09/1998
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Title:
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DISK DRIVE, DISK CONTROL METHOD, DATA READ/WRITE METHOD, DATA ASSIGNMENT METHOD, AND DISK STORAGE MEDIUM
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01/02/2001
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10/23/1998
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02/20/2001
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10/23/1998
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07/10/2001
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11/12/1998
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08/01/2000
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11/16/1998
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01/23/2001
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11/19/1998
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09/24/2002
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12/04/1998
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08/20/2002
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12/16/1998
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08/28/2001
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02/19/1999
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07/10/2001
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02/22/1999
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PREAMPLIFIER CIRCUIT WITH MAGNETORESISTIVE SENSOR ESD PROTECTION
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