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Patent Assignment Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:	007166/0018			Pages:	15
		Recorded:	10/04/1994
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 219
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Patent #:	4072991	Issue Dt:		Application #:	05633218	Filing Dt:
Title:

Patent #:	4101969	Issue Dt:		Application #:	05803524	Filing Dt:
Title:

Patent #:	4208679	Issue Dt:	06/17/1980	Application #:	05882127	Filing Dt:	02/28/1978
Title:	TRANSDUCER POSITIONING SYSTEM FOR ROTATING DISK DRIVE UNITS

Patent #:	4196375	Issue Dt:		Application #:	05892236	Filing Dt:
Title:

Patent #:	4172267	Issue Dt:		Application #:	05892601	Filing Dt:
Title:

Patent #:	4231071	Issue Dt:	10/28/1980	Application #:	05925534	Filing Dt:	07/17/1978
Title:	READER FOR DATA RECORDED ON MAGNETIC DISKS AT PLURAL DENSITIES

Patent #:	4183066	Issue Dt:		Application #:	05925596	Filing Dt:
Title:

Patent #:	4260914	Issue Dt:	04/07/1981	Application #:	06024605	Filing Dt:	03/28/1979
Title:	DIFFERENTIAL LINEAR VELOCITY TRANSDUCER

Patent #:	4380723	Issue Dt:	04/19/1983	Application #:	06046130	Filing Dt:	06/05/1979
Title:	DIGITAL VELOCITY SERVO

Patent #:	4346416	Issue Dt:	08/24/1982	Application #:	06126129	Filing Dt:	02/29/1980
Title:	ROTARY ACTUATOR ASSEMBLY FOR DISK DRIVE HEAD POSITIONER

Patent #:	4338642	Issue Dt:	07/06/1982	Application #:	06136541	Filing Dt:	04/02/1980
Title:	DRIVE BELT RELEASE MECHANISM FOR MAGNETIC DISK DRIVES

Patent #:	4325090	Issue Dt:	04/13/1982	Application #:	06141715	Filing Dt:	04/18/1980
Title:	DEVICE FOR SYNCHRONIZING A CLOCK PULSE GENERATOR WITH A SERIAL DATA SIGNAL

Patent #:	4321632	Issue Dt:	03/23/1982	Application #:	06148055	Filing Dt:	05/08/1980
Title:	POSITIONING SYSTEM AND FORMATTIJNG SCHEME FOR MAGNETIC TAPE MEDIA

Patent #:	4366512	Issue Dt:	12/28/1982	Application #:	06168843	Filing Dt:	07/10/1980
Title:	METHOD AND APPARATUS FOR DIVIDING A TRACK ON A MAGNETIZABLE INFORMATION STORAGE DISC INTO SECTORS

Patent #:	4383283	Issue Dt:	05/10/1983	Application #:	06191834	Filing Dt:	09/29/1980
Title:	DUAL MINI-DISK DRIVE

Patent #:	4390912	Issue Dt:	06/28/1983	Application #:	06206008	Filing Dt:	11/12/1980
Title:	TRANSDUCER POSITIONING SYSTEM AND DATA DISK THEREFOR

Patent #:	4413339	Issue Dt:	11/01/1983	Application #:	06277060	Filing Dt:	06/24/1981
Title:	MULTIPLE ERROR DETECTING AND CORRECTING SYSTEM EMPLOYING REED-SOLOMON CODES

Patent #:	4422115	Issue Dt:	12/20/1983	Application #:	06283163	Filing Dt:	07/14/1981
Title:	LIGHTWEIGHT DUAL HEAD SUPP0RT ASSEMBLY FOR MAGNETIC DISK DRIVES

Patent #:	4391035	Issue Dt:	07/05/1983	Application #:	06305313	Filing Dt:	09/24/1981
Title:	METHOD OF MOUNTING A MAGNETIC HEAD UNIT ON A MOVABLE CARRIER

Patent #:	4500958	Issue Dt:	02/19/1985	Application #:	06370572	Filing Dt:	04/21/1982
Title:	MEMORY CONTROLLER WITH DATA ROTATION ARRANGEMENT

Patent #:	4503420	Issue Dt:	03/05/1985	Application #:	06375931	Filing Dt:	05/07/1982
Title:	ARRANGEMENT FOR ENCODING AND DECODING INFORMATION SIGNALS

Patent #:	4484142	Issue Dt:	11/20/1984	Application #:	06375932	Filing Dt:	05/07/1982
Title:	PHASE DETECTOR CIRCUIT

Patent #:	4495529	Issue Dt:	01/22/1985	Application #:	06375933	Filing Dt:	05/07/1982
Title:	QUALIFIER CIRCUIT

Patent #:	4536809	Issue Dt:	08/20/1985	Application #:	06376972	Filing Dt:	05/10/1982
Title:	ADAPTIVE MISPOSITION CORRECTING METHOD AND APPARATUS FOR MAGNETIC DISK SERVO SYSTEM

Patent #:	4503530	Issue Dt:	03/05/1985	Application #:	06382550	Filing Dt:	05/27/1982
Title:	DISK HUB SPINDLE SYSTEM

Patent #:	4630158	Issue Dt:	12/16/1986	Application #:	06483340	Filing Dt:	04/08/1983
Title:	VERTICALLY LOADING HEAD MODULE FOR MAGNETIC DISK DRIVE

Patent #:	4622516	Issue Dt:	11/11/1986	Application #:	06505047	Filing Dt:	06/16/1983
Title:	MAGNETIC TACHOMETER FOR DISK DRIVES

Patent #:	4631611	Issue Dt:	12/23/1986	Application #:	06529840	Filing Dt:	09/06/1983
Title:	READ/WRITE HEAD POSITIONER ARRANGEMENT

Patent #:	4581109	Issue Dt:	04/08/1986	Application #:	06560478	Filing Dt:	12/12/1983
Title:	MAGNETIC PLATED MEDIA AND PROCESS THEREOF

Patent #:	4662049	Issue Dt:	05/05/1987	Application #:	06578766	Filing Dt:	02/13/1984
Title:	MECHANISM FOR JOINING TAPE LEADERS

Patent #:	4572460	Issue Dt:	02/25/1986	Application #:	06579776	Filing Dt:	02/13/1984
Title:	MEANS FOR PULLING TAPE FROM A REEL

Patent #:	4633488	Issue Dt:	12/30/1986	Application #:	06670825	Filing Dt:	11/13/1984
Title:	PHASE-LOCKED LOOP FOR MFM DATA RECORDING

Patent #:	4656546	Issue Dt:	04/07/1987	Application #:	06693522	Filing Dt:	01/22/1985
Title:	VERTICAL MAGNETIC RECORDING ARRANGEMENT

Patent #:	4662351	Issue Dt:	05/05/1987	Application #:	06705943	Filing Dt:	02/26/1985
Title:	STOVE FOR COMBUSTING BOTH LIQUID AND SOLID FUELS

Patent #:	4619872	Issue Dt:	10/28/1986	Application #:	06813594	Filing Dt:	12/26/1985
Title:	MAGNETIC PLATED MEDIA

Patent #:	4720913	Issue Dt:	01/26/1988	Application #:	06824189	Filing Dt:	01/31/1986
Title:	MECHANISM FOR JOINING TAPE LEADERS

Patent #:	4695351	Issue Dt:	09/22/1987	Application #:	06884013	Filing Dt:	07/10/1986
Title:	METHOD FOR PRODUCING MAGNETIC HEADS

Patent #:	4705257	Issue Dt:	11/10/1987	Application #:	07029328	Filing Dt:	03/23/1987
Title:	SHOCK AND VIBRATION ISOLATION MOUNTING

Patent #:	4856003	Issue Dt:	08/08/1989	Application #:	07047627	Filing Dt:	05/07/1987
Title:	ERROR CORRECTION CODE ENCODER

Patent #:	5020040	Issue Dt:	05/28/1991	Application #:	07065931	Filing Dt:	06/24/1987
Title:	OVERWRITING SYSTEM FOR MAGNETO-OPTICAL RECORDING WITH SELF TIMING TRACK

Patent #:	4975867	Issue Dt:	12/04/1990	Application #:	07067712	Filing Dt:	06/26/1987
Title:	AN APPARATUS FOR DIVIDING ELEMENTS OF A GALOIS FIELD GF(2QM)

Patent #:	4806792	Issue Dt:	02/21/1989	Application #:	07069407	Filing Dt:	07/01/1987
Title:	DIFFERENTIAL AMPLIFIER CIRCUIT

Patent #:	4985985	Issue Dt:	01/22/1991	Application #:	07069408	Filing Dt:	07/01/1987
Title:	SOLENOIDAL THIN FILM READ/WRITE HEAD FOR COMPUTER MASS STORAGE DEVICE AND METHOD OF MAKING SAME

Patent #:	4847705	Issue Dt:	07/11/1989	Application #:	07070689	Filing Dt:	07/07/1987
Title:	METHOD AND APPARATUS FOR ENCODING MAGNETIC DISK SECTOR ADDRESSES

Patent #:	4907113	Issue Dt:	03/06/1990	Application #:	07079117	Filing Dt:	07/29/1987
Title:	THREE-POLE MAGNETIC RECORDING HEAD

Patent #:	4965780	Issue Dt:	10/23/1990	Application #:	07084577	Filing Dt:	08/12/1987
Title:	MAGNETO -OPTICAL DATA RECORDING DEVICE USING A WAVELENGTH AND POLARIZATION-SENSITIVE SPLITTER

Patent #:	4795275	Issue Dt:	01/03/1989	Application #:	07084985	Filing Dt:	08/12/1987
Title:	HYDRODYNAMIC BEARING

Patent #:	4816119	Issue Dt:	03/28/1989	Application #:	07092952	Filing Dt:	09/04/1987
Title:	PROCESS FOR PRODUCTION OF MAGNETIC MEDIA

Patent #:	4821130	Issue Dt:	04/11/1989	Application #:	07093195	Filing Dt:	09/04/1987
Title:	DISK EXTENDER BAFFLES

Patent #:	4905238	Issue Dt:	02/27/1990	Application #:	07093196	Filing Dt:	09/04/1987
Title:	ANALOG AMPLIFIER-MULTIPLEXER FOR A DATA SYSTEM

Patent #:	4829267	Issue Dt:	05/09/1989	Application #:	07093220	Filing Dt:	09/04/1987
Title:	AUTOMATIC DC RESTORER STAGE FOR SERVO DATA AMPLIFIER

Patent #:	4769588	Issue Dt:	09/06/1988	Application #:	07093396	Filing Dt:	09/04/1987
Title:	APPARATUS AND METHOD FOR PROVIDING A CURRENT EXPONENTIALLY PROPORTIONAL TO VOLTAGE AND DIRECTLY PROPORTIONAL TO TEMPERATURE

Patent #:	4849711	Issue Dt:	07/18/1989	Application #:	07093810	Filing Dt:	09/04/1987
Title:	AUTOMATIC GAIN CONTROL SYSTEM

Patent #:	4788465	Issue Dt:	11/29/1988	Application #:	07095530	Filing Dt:	09/10/1987
Title:	ARMATURE FOR DC MOTOR

Patent #:	4875635	Issue Dt:	10/24/1989	Application #:	07104814	Filing Dt:	10/02/1987
Title:	PROGRAMMED RATIO MECHANICAL TRANSMISSION

Patent #:	4809110	Issue Dt:	02/28/1989	Application #:	07106935	Filing Dt:	10/08/1987
Title:	NARROW CONTOUR HEAD ASSEMBLY

Patent #:	4908841	Issue Dt:	03/13/1990	Application #:	07115238	Filing Dt:	10/30/1987
Title:	DATA DECODING CIRCUIT INCLUDING PHASE-LOCKED LOOP TIMING

Patent #:	4874975	Issue Dt:	10/17/1989	Application #:	07127625	Filing Dt:	12/01/1987
Title:	BRUSHLESS DC MOTOR

Patent #:	4884155	Issue Dt:	11/28/1989	Application #:	07128802	Filing Dt:	12/04/1987
Title:	SELF-LOADING HEAD ASSEMBLY FOR DISK DRIVES

Patent #:	4828966	Issue Dt:	05/09/1989	Application #:	07128947	Filing Dt:	12/04/1987
Title:	METHOD FOR PRODUCING HALL EFFECT SENSOR FOR MAGNETIC RECORDING HEAD

Patent #:	4908826	Issue Dt:	03/13/1990	Application #:	07141061	Filing Dt:	01/05/1988
Title:	STORED DATA ERROR CORRECTION SYSTEM

Patent #:	4914535	Issue Dt:	04/03/1990	Application #:	07141204	Filing Dt:	01/06/1988
Title:	SYNCHRONIZATION FOR STORED DATA

Patent #:	4866716	Issue Dt:	09/12/1989	Application #:	07146850	Filing Dt:	01/22/1988
Title:	REAL-TIME BCH ERROR CORRECTION CODE DECODING MECHANISM

Patent #:	4864198	Issue Dt:	09/05/1989	Application #:	07149495	Filing Dt:	01/28/1988
Title:	METHOD OF AND APPARATUS FOR DRIVING THREE-PHASE D.C. BRUSHLESS MOTOR

Patent #:	4949194	Issue Dt:	08/14/1990	Application #:	07160883	Filing Dt:	02/26/1988
Title:	CERAMIC SUPPORT ARM FOR MOVABLY POSITIONING TRANSDUCERS

Patent #:	4912584	Issue Dt:	03/27/1990	Application #:	07166511	Filing Dt:	03/09/1988
Title:	METHOD FOR FABRICATING MAGNETIC RECORDING POLES

Patent #:	5131619	Issue Dt:	07/21/1992	Application #:	07166514	Filing Dt:	03/09/1988
Title:	VIBRATION ISOLATING MOUNT

Patent #:	4935832	Issue Dt:	06/19/1990	Application #:	07168978	Filing Dt:	03/16/1988
Title:	RECORDING HEADS WITH SIDE SHIELDS

Patent #:	4912583	Issue Dt:	03/27/1990	Application #:	07171964	Filing Dt:	03/23/1988
Title:	CLAMP FOR MOUNTING HEAD-LOAD BEAM SLIDER ARM IN A DISK DRIVE

Patent #:	4947275	Issue Dt:	08/07/1990	Application #:	07172288	Filing Dt:	03/23/1988
Title:	DETACHABLE HEAD-LOAD BEAM SLIDER ARM FOR DISK DRIVE

Patent #:	4896777	Issue Dt:	01/30/1990	Application #:	07178295	Filing Dt:	04/06/1988
Title:	LOCK AND SHOCK MOUNTED DEVICE FOR COMPUTER DISK DRIVE

Patent #:	5097468	Issue Dt:	03/17/1992	Application #:	07189773	Filing Dt:	05/03/1988
Title:	TESTING ASYNCHRONOUS PROCESSES

Patent #:	4918548	Issue Dt:	04/17/1990	Application #:	07191617	Filing Dt:	05/09/1988
Title:	CARTRIDGE LOADER

Patent #:	5105408	Issue Dt:	04/14/1992	Application #:	07192950	Filing Dt:	05/12/1988
Title:	OPTICAL HEAD WITH FLYING LENS

Patent #:	5036408	Issue Dt:	07/30/1991	Application #:	07193090	Filing Dt:	05/12/1988
Title:	HIGH EFFICIENCY DISK FORMAT AND SYNCHRONIZATION SYSTEM

Patent #:	4989211	Issue Dt:	01/29/1991	Application #:	07193109	Filing Dt:	05/12/1988
Title:	SECTOR MIS-SYNCHRONIZATION DETECTION METHOD

Patent #:	4908721	Issue Dt:	03/13/1990	Application #:	07193347	Filing Dt:	05/12/1988
Title:	AN IMPROVED DECORDER

Patent #:	4900650	Issue Dt:	02/13/1990	Application #:	07193417	Filing Dt:	05/12/1988
Title:	METHOD OF PRODUCING A POLE PIECE WITH IMPROVED MAGNETIC DOMAIN STRUCTURE

Patent #:	4968985	Issue Dt:	11/06/1990	Application #:	07202882	Filing Dt:	06/06/1988
Title:	DATA DEMODULATION SYSTEM

Patent #:	4877480	Issue Dt:	10/31/1989	Application #:	07205490	Filing Dt:	06/06/1988
Title:	LITHOGRAPHIC TECHNIQUE USING LASER FOR FABRICATION OF ELECTRONIC COMPONENTS AND THE LIKE

Patent #:	4931886	Issue Dt:	06/05/1990	Application #:	07212876	Filing Dt:	06/29/1988
Title:	APPARATUS AND METHODS TO SUPPRESS PERPENDICULAR FIELDS IN LONGITUDINAL LONGITUDINAL RECORDING

Patent #:	5089334	Issue Dt:	02/18/1992	Application #:	07227808	Filing Dt:	08/03/1988
Title:	FLUX SPREADING THIN FILM MAGNETIC DEVICES

Patent #:	4970616	Issue Dt:	11/13/1990	Application #:	07233322	Filing Dt:	08/17/1988
Title:	RECORDING HEAD TO MINIMIZE UNDERSHOOTS IN READBACK PULSES

Patent #:	5023991	Issue Dt:	06/18/1991	Application #:	07238868	Filing Dt:	08/31/1988
Title:	ELECTRICAL GUIDE FOR TIGHT TOLERANCE MACHINING

Patent #:	4890172	Issue Dt:	12/26/1989	Application #:	07250037	Filing Dt:	09/27/1988
Title:	AUTOMATIC SERVO GAIN CALIBRATION SYSTEM FOR A DISK DRIVE

Patent #:	4885649	Issue Dt:	12/05/1989	Application #:	07253390	Filing Dt:	10/04/1988
Title:	THIN FILM HEAD HAVING A MAGNETO-RESTRICTIVE READ ELEMENT

Patent #:	4975930	Issue Dt:	12/04/1990	Application #:	07266089	Filing Dt:	11/02/1988
Title:	DIGITAL PHASE LOCKED LOOP

Patent #:	5016131	Issue Dt:	05/14/1991	Application #:	07343907	Filing Dt:	04/26/1989
Title:	AN INTEGRAL BALANCED-MOMENT HEAD POSITIONER

Patent #:	5266409	Issue Dt:	11/30/1993	Application #:	07344990	Filing Dt:	04/28/1989
Title:	HYDROGENATED CARBON COMPOSITIONS

Patent #:	5085935	Issue Dt:	02/04/1992	Application #:	07360421	Filing Dt:	06/02/1989
Title:	FLUX SPREADING THIN FILM MAGNETIC DEVICES

Patent #:	5176965	Issue Dt:	01/05/1993	Application #:	07364900	Filing Dt:	06/12/1989
Title:	MAGNETIC MEDIUM FOR LONGITUDINAL RECORDING

Patent #:	4987292	Issue Dt:	01/22/1991	Application #:	07365243	Filing Dt:	06/12/1989
Title:	METHOD AND APPARATUS FOR DETECTING FOCUS AND TRACKING ERRORS

Patent #:	5120603	Issue Dt:	06/09/1992	Application #:	07369713	Filing Dt:	06/22/1989
Title:	MAGNETO-OPTIC RECORDING MEDIUM WITH ORIENTED LANGMUIR-BLODGETT PROTECTIVE LAYER

Patent #:	5221422	Issue Dt:	06/22/1993	Application #:	07369714	Filing Dt:	06/22/1989
Title:	LITHOGRAPHIC TECHNIQUE USING LASER SCANNING FOR FABRICATION OF ELECTRONIC COMPONENTS AND THE LIKE

Patent #:	5121260	Issue Dt:	06/09/1992	Application #:	07369741	Filing Dt:	06/22/1989
Title:	READ CHANNEL OPTIMIZATION SYSTEM

Patent #:	5103352	Issue Dt:	04/07/1992	Application #:	07369742	Filing Dt:	06/22/1989
Title:	PHASED SERIES TUNED EQUALIZER

Patent #:	5111352	Issue Dt:	05/05/1992	Application #:	07369833	Filing Dt:	06/22/1989
Title:	THREE-POLE MAGNETIC HEAD WITH REDUCED FLUX LEAKAGE

Patent #:	4963836	Issue Dt:	10/16/1990	Application #:	07370803	Filing Dt:	06/23/1989
Title:	WIDE RANGE HIGH STABILITY VARIABLE GAIN AMPLIFIER

Patent #:	4928075	Issue Dt:	05/22/1990	Application #:	07371494	Filing Dt:	06/26/1989
Title:	MULTIPLE BANDWIDTH FILTER SYSTEM FOR PHASE LOCKED LOOP

100

Patent #:	5136592	Issue Dt:	08/04/1992	Application #:	07373323	Filing Dt:	06/28/1989
Title:	ERROR DETECTION AND CORRECTION SYSTEM FOR LONG BURST ERRORS

Assignor

DIGITAL EQUIPMENT CORPORATION

Exec Dt:

10/03/1994

Assignee

QUANTUM CORPORATION

PATENT DEPARTMENT ENGINEERING & TECHNOLOGY

500 MCCARTHY BOULEVARD

MILPITAS, CALIFORNIA 95035

Correspondence name and address
	QUANTUM CORPORATION/DAVID B. HARRISON
	CORPORATE PATENT COUNSEL
	500 MCCARTHY BOULEVARD
	MILPITAS, CALIFORNIA 95035

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