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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:	005184/0213			Pages:	38
		Recorded:	10/02/1989
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Total properties: 176
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Patent #:	3719525	Issue Dt:		Application #:	04790129	Filing Dt:
Title:

Patent #:	3674554	Issue Dt:		Application #:	05057671	Filing Dt:
Title:

Patent #:	3738818	Issue Dt:		Application #:	05149717	Filing Dt:
Title:

Patent #:	3778792	Issue Dt:		Application #:	05242509	Filing Dt:
Title:

Patent #:	3896495	Issue Dt:		Application #:	05445410	Filing Dt:
Title:

Patent #:	3903545	Issue Dt:		Application #:	05458262	Filing Dt:
Title:

Patent #:	3956769	Issue Dt:		Application #:	05496509	Filing Dt:
Title:

Patent #:	3947881	Issue Dt:		Application #:	05570522	Filing Dt:
Title:

Patent #:	3986209	Issue Dt:		Application #:	05578568	Filing Dt:
Title:

Patent #:	3970433	Issue Dt:		Application #:	05589101	Filing Dt:
Title:

Patent #:	4008492	Issue Dt:		Application #:	05598517	Filing Dt:
Title:

Patent #:	3984872	Issue Dt:		Application #:	05601575	Filing Dt:
Title:

Patent #:	3982318	Issue Dt:		Application #:	05653578	Filing Dt:
Title:

Patent #:	4064545	Issue Dt:		Application #:	05767703	Filing Dt:
Title:

Patent #:	4068290	Issue Dt:		Application #:	05784104	Filing Dt:
Title:

Patent #:	4121156	Issue Dt:		Application #:	05844330	Filing Dt:
Title:

Patent #:	4107746	Issue Dt:		Application #:	05844674	Filing Dt:
Title:

Patent #:	4121172	Issue Dt:		Application #:	05850885	Filing Dt:
Title:

Patent #:	4120217	Issue Dt:		Application #:	05858932	Filing Dt:
Title:

Patent #:	4182643	Issue Dt:		Application #:	05904053	Filing Dt:
Title:

Patent #:	D257675	Issue Dt:	12/23/1980	Application #:	05905817	Filing Dt:	05/15/1978
Title:	DISK MEMORY MODULE

Patent #:	4191982	Issue Dt:		Application #:	05927320	Filing Dt:
Title:

Patent #:	4236355	Issue Dt:	12/02/1980	Application #:	05927321	Filing Dt:	07/24/1978
Title:	PRECISION GRINDING WHEEL MOUNT AND METHOD OF ALIGNING

Patent #:	4279102	Issue Dt:	07/21/1981	Application #:	05927325	Filing Dt:	07/24/1978
Title:	NARROW TRACK FERRITE HEAD CORES

Patent #:	4177899	Issue Dt:		Application #:	05939514	Filing Dt:
Title:

Patent #:	4185313	Issue Dt:		Application #:	05945722	Filing Dt:
Title:

Patent #:	4272794	Issue Dt:	06/09/1981	Application #:	05949845	Filing Dt:	10/10/1978
Title:	DISC MEMORY DRIVE WITH IMPROVED CARTRIDGE HANDLING

Patent #:	4194228	Issue Dt:	03/18/1980	Application #:	05950346	Filing Dt:	10/11/1978
Title:	MAGNETIC PERIPHERALS

Patent #:	4224648	Issue Dt:	09/23/1980	Application #:	05951904	Filing Dt:	10/16/1978
Title:	DISC CENTERING

Patent #:	4310864	Issue Dt:	01/12/1982	Application #:	06045484	Filing Dt:	06/04/1979
Title:	CARTRIDGE LOADING AND UNLOADING MECHANISM

Patent #:	4257074	Issue Dt:	03/17/1981	Application #:	06048871	Filing Dt:	06/15/1979
Title:	TIME OPTIMAL FUNCTION GENERATOR FOR DISK FILE MAGNETIC RECORDING HEAD SERVO POSITION CONTROL LOOP

Patent #:	4302789	Issue Dt:	11/24/1981	Application #:	06119685	Filing Dt:	02/08/1980
Title:	DISC MEMORY HEAD ARM LIFT MECHANISM

Patent #:	4321636	Issue Dt:	03/23/1982	Application #:	06131261	Filing Dt:	03/17/1980
Title:	CATEYE-SIGNAL INTERCEPT DETECTOR FOR ALIGHNING A READ-WRITE HEAD ABOVE A COMPUTER DATA STORAGE DISK

Patent #:	4328521	Issue Dt:	05/04/1982	Application #:	06138032	Filing Dt:	04/07/1980
Title:	GIMBAL SPRING RETAINER

Patent #:	4328521	Issue Dt:	05/04/1982	Application #:	06138032	Filing Dt:	04/07/1980
Title:	GIMBAL SPRING RETAINER

Patent #:	4333117	Issue Dt:	06/01/1982	Application #:	06164435	Filing Dt:	06/30/1980
Title:	DISC HEAD ARM POSITION CONTROLLER USING DIGITAL VELOCITY SENSING

Patent #:	4297781	Issue Dt:	11/03/1981	Application #:	06170383	Filing Dt:	07/21/1980
Title:	METHOD OF ALIGNING A PRECISSION GRINDING WHEEL ASSEMBLY

Patent #:	4424271	Issue Dt:	01/03/1984	Application #:	06418352	Filing Dt:	09/15/1982
Title:	DEPOSITION PROCESS

Patent #:	4410341	Issue Dt:	10/18/1983	Application #:	06424928	Filing Dt:	09/27/1982
Title:	FLUID FILTER CARTRIDGE

Patent #:	4517610	Issue Dt:	05/14/1985	Application #:	06448137	Filing Dt:	12/09/1982
Title:	MULTICHANNEL SIGNAL RECOVERY CIRCUIT

Patent #:	4466034	Issue Dt:	08/14/1984	Application #:	06453391	Filing Dt:	12/27/1982
Title:	CARRIAGE ASSEMBLY

Patent #:	4405136	Issue Dt:	09/20/1983	Application #:	06453401	Filing Dt:	12/27/1982
Title:	PNEUMATIC CARTRIDGE SEAL FOR COMPUTER DISC DRIVE CARTRIDGE

Patent #:	4535375	Issue Dt:	08/13/1985	Application #:	06457830	Filing Dt:	01/14/1983
Title:	MAGNETORESISTIVE HEAD

Patent #:	4516162	Issue Dt:	05/07/1985	Application #:	06487341	Filing Dt:	04/21/1983
Title:	METHOD FOR VERIFYING SERVO DATA

Patent #:	4583142	Issue Dt:	04/15/1986	Application #:	06488565	Filing Dt:	04/25/1983
Title:	SLIDE LOCK MECHANISM FOR DISK DRIVES

Patent #:	4568881	Issue Dt:	02/04/1986	Application #:	06491001	Filing Dt:	05/03/1983
Title:	PHASE COMPARATOR AND DATA SEPARATOR

Patent #:	4485337	Issue Dt:	11/27/1984	Application #:	06492847	Filing Dt:	05/09/1983
Title:	SERVO DATA DRIVEN MOTOR SPEED CONTROL

Patent #:	4620251	Issue Dt:	10/28/1986	Application #:	06494224	Filing Dt:	05/13/1983
Title:	MAGNETIC TRANSDUCER SUPPORT STRUCTURE

Patent #:	4560940	Issue Dt:	12/24/1985	Application #:	06503118	Filing Dt:	06/10/1983
Title:	PEAK AMPLITUDE MEASUREMENT

Patent #:	4560924	Issue Dt:	12/24/1985	Application #:	06516828	Filing Dt:	07/22/1983
Title:	FLATNESS MEASURING APPARATUS

Patent #:	4495129	Issue Dt:	01/22/1985	Application #:	06529300	Filing Dt:	09/06/1983
Title:	PROCESS FOR PRODUCING HIGH PRECISION APERTURES IN PLASTIC COMPONENTS

Patent #:	4493000	Issue Dt:	01/08/1985	Application #:	06537907	Filing Dt:	09/30/1983
Title:	POWER ON/OFF PROTECT CIRCUIT

Patent #:	4536992	Issue Dt:	08/27/1985	Application #:	06548598	Filing Dt:	11/04/1983
Title:	PRECISION LAPPING SYSTEM

Patent #:	4544890	Issue Dt:	10/01/1985	Application #:	06549039	Filing Dt:	11/07/1983
Title:	FLAT COIL VELOCITY TRANSDUCER

Patent #:	4536270	Issue Dt:	08/20/1985	Application #:	06555851	Filing Dt:	11/28/1983
Title:	APPARATUS AND METHOD FOR SHIELDING MAGNETIC HEADS DURING A SPUTTERING OPERATION

Patent #:	4536740	Issue Dt:	08/20/1985	Application #:	06583476	Filing Dt:	02/24/1984
Title:	DOUBLET DETECTOR FOR DATA RECORDING OR TRANSMISSION

Patent #:	4841625	Issue Dt:	06/27/1989	Application #:	06592346	Filing Dt:	05/03/1984
Title:	AUTOMATIC THROAT HEIGHT CONTROL FOR FILM HEAD

Patent #:	4551355	Issue Dt:	11/05/1985	Application #:	06614882	Filing Dt:	07/26/1984
Title:	HIGH SPEED COATING PROCESS FOR MAGNETIC DISKS

Patent #:	4647993	Issue Dt:	03/03/1987	Application #:	06636931	Filing Dt:	08/02/1984
Title:	ROTARY HEAD RECORDING SYSTEM

Patent #:	4636886	Issue Dt:	01/13/1987	Application #:	06636932	Filing Dt:	08/02/1984
Title:	ROTARY HEAD RECORDING SYSTEM

Patent #:	4620248	Issue Dt:	10/28/1986	Application #:	06646537	Filing Dt:	09/04/1984
Title:	APPARATUS FOR CONTROLLING HUMIDITY IN A DISK DRIVE

Patent #:	4559743	Issue Dt:	12/24/1985	Application #:	06665865	Filing Dt:	10/29/1984
Title:	METHOD FOR CALIBRATING A MACHINING SENSOR

Patent #:	4652779	Issue Dt:	03/24/1987	Application #:	06666525	Filing Dt:	10/30/1984
Title:	CENTER POLE FOR ROTARY ACTUATOR COIL WITH LOWERED INDUCTANCE

Patent #:	4564585	Issue Dt:	01/14/1986	Application #:	06671062	Filing Dt:	11/13/1984
Title:	PROCESS FOR FABRICATING NEGATIVE PRESSURE SLIDERS

Patent #:	4588611	Issue Dt:	05/13/1986	Application #:	06677936	Filing Dt:	12/04/1984
Title:	DISK STRIPPING AND COATING PROCESS

Patent #:	4580175	Issue Dt:	04/01/1986	Application #:	06700414	Filing Dt:	02/11/1985
Title:	ENDLESS, FOLD MAGNETORESISTIVE HEAD

Patent #:	4646193	Issue Dt:	02/24/1987	Application #:	06703859	Filing Dt:	02/21/1985
Title:	DISK CARTRIDGE ASSEMBLY

Patent #:	4624564	Issue Dt:	11/25/1986	Application #:	06718311	Filing Dt:	04/01/1985
Title:	CALIBRATION STANDARDS FOR FLYING HEIGHT TESTERS

Patent #:	4607310	Issue Dt:	08/19/1986	Application #:	06733565	Filing Dt:	05/13/1985
Title:	ADJUSTABLE DEGAUSSER

Patent #:	4662830	Issue Dt:	05/05/1987	Application #:	06773280	Filing Dt:	09/06/1985
Title:	QUIET CENTRIFUGAL FAN

Patent #:	4777906	Issue Dt:	10/18/1988	Application #:	06794156	Filing Dt:	11/01/1985
Title:	EPOXY MIXING AND DISPENSING SYSTEM

Patent #:	4668097	Issue Dt:	05/26/1987	Application #:	06794207	Filing Dt:	11/01/1985
Title:	EPOXY MIXING SYSTEM

Patent #:	4642246	Issue Dt:	02/10/1987	Application #:	06796811	Filing Dt:	11/12/1985
Title:	PROCESS FOR CHEMICALLY BONDING A LUBRICANT TO A MAGNETIC DISK

Patent #:	4623952	Issue Dt:	11/18/1986	Application #:	06823234	Filing Dt:	01/28/1986
Title:	DAMPED STATIC ELIMINATOR FOR DISK DRIVES

Patent #:	4701818	Issue Dt:	10/20/1987	Application #:	06830146	Filing Dt:	02/18/1986
Title:	MEANS FOR INDEXING A ROTARY ARM IN SMALL ANGULAR STEPS

Patent #:	4728831	Issue Dt:	03/01/1988	Application #:	06840486	Filing Dt:	03/14/1986
Title:	DAMPED VOICE COIL ACTUATOR

Patent #:	4667260	Issue Dt:	05/19/1987	Application #:	06841654	Filing Dt:	03/20/1986
Title:	THIN FILM VERTICAL RECORDING HEAD

Patent #:	4751594	Issue Dt:	06/14/1988	Application #:	06865698	Filing Dt:	05/22/1986
Title:	LOW DIFFUSION DISK DRIVE BREATHER VENT

Patent #:	4677507	Issue Dt:	06/30/1987	Application #:	06869269	Filing Dt:	05/30/1986
Title:	DIGITAL VELOCITY CONTROL FOR A DISK DRIVE SERVO SYSTEM

Patent #:	4769727	Issue Dt:	09/06/1988	Application #:	06898374	Filing Dt:	08/20/1986
Title:	SELF-LOADING MAGNETIC HEAD SLIDER

Patent #:	4819111	Issue Dt:	04/04/1989	Application #:	06902359	Filing Dt:	08/29/1986
Title:	THIN FILM HEAD WITH REDUCED CROSS SECTION IN THE CORE FOR CAUSING MAGNETIC SATURATION IN THE LEADING LEG'S THROAT AREA

Patent #:	4891717	Issue Dt:	01/02/1990	Application #:	06909797	Filing Dt:	09/22/1986
Title:	METHODS AND APPARATUS FOR PERFORMING HIGH DENSITY ISOTROPIC/PERPENDICULAR DIGITAL MAGNETIC RECORDING

Patent #:	4785161	Issue Dt:	11/15/1988	Application #:	06910593	Filing Dt:	09/23/1986
Title:	LASER MACHINING FOR PRODUCING VERY SMALL PARTS

Patent #:	4737765	Issue Dt:	04/12/1988	Application #:	06921303	Filing Dt:	10/22/1986
Title:	2,7 CODE DECODER WITH NO MORE THAN 3 BITS ERROR PROPAGATION

Patent #:	4712076	Issue Dt:	12/08/1987	Application #:	06923784	Filing Dt:	10/27/1986
Title:	CIRCUIT FOR PHASE LOCKING A CLOCK DIGNAL TO A SERIES OF PULSES

Patent #:	4811135	Issue Dt:	03/07/1989	Application #:	06932814	Filing Dt:	11/19/1986
Title:	TRI-PHASE SERVO PATTERN FOR PROVIDING INFORMATION FOR POSITIONING THE TRANSDUCERS OF A MAGNETIC DISK STORAGE DRIVE

Patent #:	4814908	Issue Dt:	03/21/1989	Application #:	06937270	Filing Dt:	12/03/1986
Title:	THERMO SERVO FOR TRACK CENTERING ON A DISK

Patent #:	4778097	Issue Dt:	10/18/1988	Application #:	06938178	Filing Dt:	12/04/1986
Title:	ULTRASONIC WIRE BONDING TOOL

Patent #:	4775978	Issue Dt:	10/04/1988	Application #:	07003961	Filing Dt:	01/12/1987
Title:	DATA ERROR CORRECTION SYSTEM

Patent #:	4802042	Issue Dt:	01/31/1989	Application #:	07011655	Filing Dt:	02/05/1987
Title:	SIDE-VENTED MAGNETIC HEAD AIR BEARING SLIDER

Patent #:	4760472	Issue Dt:	07/26/1988	Application #:	07011973	Filing Dt:	02/06/1987
Title:	DUAL CHANNEL READBACK RECOVERY SYSTEM

Patent #:	4841398	Issue Dt:	06/20/1989	Application #:	07015200	Filing Dt:	02/17/1987
Title:	NON LINEAR MAGNETORESISTIVE SENSOR

Patent #:	4803580	Issue Dt:	02/07/1989	Application #:	07015204	Filing Dt:	02/17/1987
Title:	DOUBLE-GAP MAGNETORESISTIVE HEAD HAVING AN ELONGATED CENTRAL WRITE/SHIELD POLE COMPLETELY SHIELDING THE MAGNETORESISTIVE SENSOR STRIP IN THE READ GAP

Patent #:	4799112	Issue Dt:	01/17/1989	Application #:	07016166	Filing Dt:	02/19/1987
Title:	METHOD AND APPARATUS FOR RECORDING DATA

Patent #:	4760319	Issue Dt:	07/26/1988	Application #:	07020289	Filing Dt:	02/27/1987
Title:	CIRCUIT FOR REMOVING UNWANTED SLOPE TRANSITIONS FROM AN INCOMING SIGNAL

Patent #:	4756816	Issue Dt:	07/12/1988	Application #:	07056089	Filing Dt:	05/29/1987
Title:	ELECTRODEPOSITION OF HIGH MOMENT COBALT IRON

Patent #:	4754225	Issue Dt:	06/28/1988	Application #:	07070264	Filing Dt:	07/06/1987
Title:	PHASE COMPARATOR INSENSITIVE TO CLOCK ASYMMETRY

Patent #:	4748738	Issue Dt:	06/07/1988	Application #:	07075927	Filing Dt:	07/21/1987
Title:	HIGH STRENGTH MAGNET-POLE PIECE ASSEMBLY TOOL

Patent #:	4788612	Issue Dt:	11/29/1988	Application #:	07076441	Filing Dt:	07/22/1987
Title:	EXTENDED METAL IN GAP HEAD

100

Patent #:	4805336	Issue Dt:	02/21/1989	Application #:	07078014	Filing Dt:	07/27/1987
Title:	ICE FISHING ROD

Assignor

MAGNETIC PERIPHERALS, INC.

Exec Dt:

09/29/1989

Assignee

SECURITY PACIFIC NATIONAL BANK, AS AGENT

40 EAST 52ND ST.

NEW YORK, NEW YORK 10022

Correspondence name and address
	SHEARMAN & STERLING
	FOUR EMBARCADERO CENTER
	SAN FRANCISCO 94111

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