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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:006496/0048   Pages: 32
Recorded: 02/22/1993
Conveyance: RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Total properties: 58
1
Patent #:
4367502
Issue Dt:
01/04/1983
Application #:
06139200
Filing Dt:
04/11/1980
Title:
FIXED HARD DISC DRIVE ASSEMBLY AND CLEAN AIR SYSTEM
2
Patent #:
D264340
Issue Dt:
05/11/1982
Application #:
06139426
Filing Dt:
04/11/1980
Title:
DISC DRIVE ASSEMBLY
3
Patent #:
4323939
Issue Dt:
04/06/1982
Application #:
06139428
Filing Dt:
04/11/1980
Title:
HARD FIXED DISC DRIVE ASSEMBLY AND READ-WRITE HEAD ACTUATOR
4
Patent #:
4471396
Issue Dt:
09/11/1984
Application #:
06263742
Filing Dt:
05/14/1981
Title:
DISC RECORDING APPARATUS INCLUDING INTEGRAL TRACK ZERO AND CRASH STOP MEANS
5
Patent #:
4456937
Issue Dt:
06/26/1984
Application #:
06263743
Filing Dt:
05/14/1981
Title:
HEAD POSITIONING ASSEMBLY FOR DISC APPARATUS
6
Patent #:
4602305
Issue Dt:
07/22/1986
Application #:
06496837
Filing Dt:
05/23/1983
Title:
MAGNETIC DISC MEMORY APPARATUS INCORPORATING TEMPERATURE COMPENSATION
7
Patent #:
4614989
Issue Dt:
09/30/1986
Application #:
06595894
Filing Dt:
04/02/1984
Title:
HELICAL BAND DRIVE FOR DISC STORAGE APPARATUS
8
Patent #:
4568992
Issue Dt:
02/04/1986
Application #:
06603549
Filing Dt:
04/25/1984
Title:
DISC DRIVE LINEAR ACTUATOR
9
Patent #:
4578721
Issue Dt:
03/25/1986
Application #:
06648470
Filing Dt:
09/10/1984
Title:
STRESS TEST FOR MAGNETIC DISC RECORDING APPARATUS
10
Patent #:
4745501
Issue Dt:
05/17/1988
Application #:
06800058
Filing Dt:
11/20/1985
Title:
THERMAL ISOLATION OF THE VOICE COIL MOTOR FROM BASE PLATE AND CARRIAGE GUIDE RAILS OF A DISC DRIVE
11
Patent #:
4679102
Issue Dt:
07/07/1987
Application #:
06800060
Filing Dt:
11/20/1985
Title:
METHOD AND MEANS FOR PARKING READ/WRITE HEADS IN A DISC DRIVE USING THE BACK-EMF OF THE SPINDLE MOTOR TO OPERATE A STEPPER MOTOR
12
Patent #:
4620244
Issue Dt:
10/28/1986
Application #:
06800061
Filing Dt:
11/20/1985
Title:
COMPENSATION METHOD TO CORRECT THERMALLY INDUCED OFF-TRACK ERRORS IN DISC DRIVES
13
Patent #:
4746998
Issue Dt:
05/24/1988
Application #:
06800062
Filing Dt:
11/20/1985
Title:
METHOD FOR MAPPING AROUND DEFECTIVE SECTORS IN A DISC DRIVE
14
Patent #:
4682252
Issue Dt:
07/21/1987
Application #:
06803732
Filing Dt:
12/02/1985
Title:
METHOD AND APPARATUS FOR EVALUATING A RECORDING SYSTEM UTILIZING A PROGRAMMABLE WINDOW GENERATOR HAVING FIRST AND SECOND MULTIVIBRATORS PROVIDING DELAY
15
Patent #:
4654736
Issue Dt:
03/31/1987
Application #:
06868614
Filing Dt:
05/29/1986
Title:
HELICAL BAND DRIVE FOR DISC STORAGE APPARATUS
16
Patent #:
4716480
Issue Dt:
12/29/1987
Application #:
06901678
Filing Dt:
08/29/1986
Title:
CARRIAGE LATCH FOR A DISC DRIVE
17
Patent #:
4783710
Issue Dt:
11/08/1988
Application #:
06915687
Filing Dt:
10/02/1986
Title:
FLEXURE MOUNT FOR A DISC DRIVE ACTUATOR
18
Patent #:
4725907
Issue Dt:
02/16/1988
Application #:
06931959
Filing Dt:
11/24/1986
Title:
CARRIAGE LATCH FOR A DISC DRIVE INCORPORATING INERTIAL LOCK-UP
19
Patent #:
4847712
Issue Dt:
07/11/1989
Application #:
07046234
Filing Dt:
05/04/1987
Title:
DISC DRIVE SPINDLE MOTOR WITH LOW COGGING TORQUE
20
Patent #:
4839761
Issue Dt:
06/13/1989
Application #:
07080063
Filing Dt:
07/31/1987
Title:
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING SYSTEM
21
Patent #:
4812928
Issue Dt:
03/14/1989
Application #:
07085117
Filing Dt:
08/14/1987
Title:
STEPPER MOTOR DATA RECOVERY METHOD USING A MAGNETIC HYSTERESIS BASED STEPPING ALGORITHM
22
Patent #:
4768115
Issue Dt:
08/30/1988
Application #:
07085118
Filing Dt:
08/14/1987
Title:
STEPPER MOTOR MAGNETIC HYSTERESIS CORRECTION USING A STEPPING ALGORITHM
23
Patent #:
4739239
Issue Dt:
04/19/1988
Application #:
07091764
Filing Dt:
08/03/1987
Title:
BIPOLAR MOTOR CONTROL
24
Patent #:
4858044
Issue Dt:
08/15/1989
Application #:
07115268
Filing Dt:
10/30/1987
Title:
DISC DRIVE SPINDLE MOTOR WITH LOW COGGING TORQUE
25
Patent #:
4845579
Issue Dt:
07/04/1989
Application #:
07115536
Filing Dt:
10/30/1987
Title:
DISC DRIVE INCORPORATING AUTOMATIC WEAR COMPENSATION FOR A PIVOTED ARM
26
Patent #:
4881140
Issue Dt:
11/14/1989
Application #:
07115691
Filing Dt:
11/02/1987
Title:
INTEGRATED DISC DRIVE AND ACTUATOR SUPPORT
27
Patent #:
4845581
Issue Dt:
07/04/1989
Application #:
07115715
Filing Dt:
11/02/1987
Title:
DISC HOUSING CLAMPING METHOD
28
Patent #:
4864443
Issue Dt:
09/05/1989
Application #:
07115716
Filing Dt:
11/02/1987
Title:
DISC CLAMPING DEVICE
29
Patent #:
4841393
Issue Dt:
06/20/1989
Application #:
07116044
Filing Dt:
11/02/1987
Title:
SPINDLE MOTOR FOR A DISC DRIVE
30
Patent #:
5023148
Issue Dt:
06/11/1991
Application #:
07139673
Filing Dt:
12/30/1987
Title:
THIN FILM COBALT-CONTAINING RECORDING MEDIUM
31
Patent #:
4924331
Issue Dt:
05/08/1990
Application #:
07197247
Filing Dt:
05/23/1988
Title:
METHOD FOR MAPPING AROUND DEFECTIVE SECTORS IN A DISC DRIVE
32
Patent #:
4885517
Issue Dt:
12/05/1989
Application #:
07208894
Filing Dt:
06/20/1988
Title:
VOICE COIL ACTUATOR POSITIONING AMPLIFIER
33
Patent #:
4888655
Issue Dt:
12/19/1989
Application #:
07220231
Filing Dt:
07/18/1988
Title:
AIR FILTRATION SYSTEM FOR DISC DRIVES
34
Patent #:
4888656
Issue Dt:
12/19/1989
Application #:
07220232
Filing Dt:
07/18/1988
Title:
PIVOT MECHANISM FOR ROTARY DISC DRIVES
35
Patent #:
4890176
Issue Dt:
12/26/1989
Application #:
07220329
Filing Dt:
07/18/1988
Title:
CRASH STOP AND MAGNETIC LATCH FOR A VOICE COIL ACTUATOR
36
Patent #:
4896231
Issue Dt:
01/23/1990
Application #:
07220509
Filing Dt:
07/18/1988
Title:
BACKBONE GASKET FOR DISC DRIVES
37
Patent #:
4933791
Issue Dt:
06/12/1990
Application #:
07220547
Filing Dt:
07/18/1988
Title:
HEAD ARM FLEXURE FOR DISC DRIVES
38
Patent #:
4893205
Issue Dt:
01/09/1990
Application #:
07220553
Filing Dt:
07/18/1988
Title:
FLEXURE MOUNT FOR DISC DRIVES
39
Patent #:
4926077
Issue Dt:
05/15/1990
Application #:
07221335
Filing Dt:
07/19/1988
Title:
RESISTANCE COMPENSATION IN A MOTOR USING A THERMALLY VARIABLE RESISTIVE NETWORK
40
Patent #:
5079653
Issue Dt:
01/07/1992
Application #:
07226150
Filing Dt:
07/29/1988
Title:
INFORMATION STORAGE DISC TRANSDUCER POSITION CONTROL SYSTEM USING LAST STEP DAMPING
41
Patent #:
4847558
Issue Dt:
07/11/1989
Application #:
07237677
Filing Dt:
08/25/1988
Title:
NON-DESTRUCTIVE METHOD AND APPARATUS USING DC ERASE FIELD FOR MAGNETIC MEASUREMENT OF RECORDING DISC MEMBERS
42
Patent #:
4945311
Issue Dt:
07/31/1990
Application #:
07237876
Filing Dt:
08/29/1988
Title:
ELECTRONICALLY VARIABLE EQUALIZER
43
Patent #:
4901215
Issue Dt:
02/13/1990
Application #:
07244493
Filing Dt:
09/14/1988
Title:
ISOLATED SWITCH MODE POWER SUPPLY CONTROLLER
44
Patent #:
4928054
Issue Dt:
05/22/1990
Application #:
07246764
Filing Dt:
09/20/1988
Title:
SWITCH MODE ELECTRICAL POWER CONTROLLER
45
Patent #:
4896239
Issue Dt:
01/23/1990
Application #:
07259457
Filing Dt:
10/17/1988
Title:
BI-COMPLIANT ROTOR STEPPER MOTOR FOR AN ACTUATOR IN A DISC DRIVE
46
Patent #:
D316850
Issue Dt:
05/14/1991
Application #:
07270304
Filing Dt:
11/14/1988
Title:
ARRAYED DISK DRIVE SYSTEM
47
Patent #:
4933788
Issue Dt:
06/12/1990
Application #:
07271114
Filing Dt:
11/14/1988
Title:
TAPE RECORDING AND/OR REPRODUCING APPARATUS
48
Patent #:
4996617
Issue Dt:
02/26/1991
Application #:
07299400
Filing Dt:
01/23/1989
Title:
DISC DRIVE SAFETY LATCH USING SHAPE MEMORY METALS
49
Patent #:
4992686
Issue Dt:
02/12/1991
Application #:
07300486
Filing Dt:
01/23/1989
Title:
SINGLE HOUSING STEPPER MOTOR
50
Patent #:
5182685
Issue Dt:
01/26/1993
Application #:
07306534
Filing Dt:
02/03/1989
Title:
STEPPER MOTOR TORQUE VARIANCE COMPENSATION USING VARIED APPLIED VOLTAGE
51
Patent #:
4956727
Issue Dt:
09/11/1990
Application #:
07308931
Filing Dt:
02/06/1989
Title:
DISC MEMORY SERVO INDEXING SYSTEM
52
Patent #:
4967296
Issue Dt:
10/30/1990
Application #:
07325127
Filing Dt:
03/14/1989
Title:
LIGHTWEIGHT, RIGID, COMPACT CONFIGURATION FOR THE VOICE COIL, CARRIAGE AND PRINTED CIRCUIT CABLE IN A DISC DRIVE
53
Patent #:
4979063
Issue Dt:
12/18/1990
Application #:
07345434
Filing Dt:
05/01/1989
Title:
DESIGN FOR AN ACTUATOR ARM FOR A DISC DRIVE
54
Patent #:
4947274
Issue Dt:
08/07/1990
Application #:
07454191
Filing Dt:
12/21/1989
Title:
RESILIENTLY MOUNTED CRASH STOP AND MAGNETIC LATCH FOR A VOICE COIL ACTUATOR
55
Patent #:
5051855
Issue Dt:
09/24/1991
Application #:
07474222
Filing Dt:
02/02/1990
Title:
ROTARY ACTUATOR
56
Patent #:
4982301
Issue Dt:
01/01/1991
Application #:
07515543
Filing Dt:
04/26/1990
Title:
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING SYSTEM AND PROCESS
57
Patent #:
4998987
Issue Dt:
03/12/1991
Application #:
07561489
Filing Dt:
08/01/1990
Title:
AUTOMATIC DISC GAUGING AND SORTING APPARATUS
58
Patent #:
5274517
Issue Dt:
12/28/1993
Application #:
07942106
Filing Dt:
09/08/1992
Title:
DISK CLAMP WITH ANNULAR SPRING SECTION
Assignor
1
BANKAMERICA CORPORATION
Exec Dt:
04/21/1992
Assignee
1
SEAGATE TECHNOLOGY, INC.
P.O. BOX 66360, 920 DISC DRIVE
BUILDING 14
SCOTTS VALLEY, CALIFORNIA 95067-0360
Correspondence name and address
EDWARD P. HELLER, III
920 DISC DIRVE
SCOTTS VALLEY, CA 95067-0360

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