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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:005281/0484   Pages: 6
Recorded: 04/26/1990
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 21
1
Patent #:
Issue Dt:
08/09/1983
Application #:
06184788
Filing Dt:
09/08/1980
Title:
COMBINED DISC AND TAPE DRIVE
2
Patent #:
Issue Dt:
08/30/1983
Application #:
06185252
Filing Dt:
09/08/1980
Title:
INTEGRATED DISC AND TAPE RECORDER DRIVE UNIT
3
Patent #:
Issue Dt:
02/05/1985
Application #:
06280127
Filing Dt:
07/02/1981
Title:
METHOD AND APPARATUS FOR NORMALIZING SERVO-POSITIONING SIGNALS
4
Patent #:
Issue Dt:
07/24/1984
Application #:
06280137
Filing Dt:
07/02/1981
Title:
METHOD FOR CONTROLLING A DISC HEAD
5
Patent #:
Issue Dt:
09/18/1984
Application #:
06280138
Filing Dt:
07/02/1981
Title:
DATA RECORD WITH PRE-RECORDED TRANSDUCER POSITIONING SIGNALS, AND SYSTEM FOR UTILIZING SAME
6
Patent #:
Issue Dt:
08/28/1984
Application #:
06280139
Filing Dt:
07/02/1981
Title:
POSITIONER APPARATUS FOR TAPE RECORDER HEADS
7
Patent #:
Issue Dt:
04/29/1986
Application #:
06589007
Filing Dt:
03/13/1984
Title:
METHOD AND APPARATUS FOR PRE-RECORDING TRACKING INFORMATION ON MAGNETIC MEDIA
8
Patent #:
Issue Dt:
03/03/1987
Application #:
06589146
Filing Dt:
03/13/1984
Title:
MINIATURIZED CARTRIDGE-TYPE TAPE DRIVE FOR DATA PROCESSORS
9
Patent #:
Issue Dt:
02/24/1987
Application #:
06597012
Filing Dt:
04/05/1984
Title:
METHOD AND APPARATUS FOR POSITIONING TRANSDUCERS BY DIGITAL CONVERSION OF ANALOG-TYPE SIGNALS
10
Patent #:
Issue Dt:
06/16/1987
Application #:
06628110
Filing Dt:
07/06/1984
Title:
CARTRIDGE TAPE DRIVE WITH FRICTION ROLLER TO OPEN CARTRIDGE DOOR
11
Patent #:
Issue Dt:
09/08/1987
Application #:
06683301
Filing Dt:
12/18/1984
Title:
ELECTRIC MOTOR HOUSING
12
Patent #:
Issue Dt:
01/03/1989
Application #:
06830559
Filing Dt:
02/18/1986
Title:
SYSTEM AND METHOD FOR ENCODING AND STORING DIGITAL INFORMATION ON MAGNETIC TAPE
13
Patent #:
Issue Dt:
01/03/1989
Application #:
06830559
Filing Dt:
02/18/1986
Title:
SYSTEM AND METHOD FOR ENCODING AND STORING DIGITAL INFORMATION ON MAGNETIC TAPE
14
Patent #:
Issue Dt:
04/04/1989
Application #:
06915734
Filing Dt:
10/06/1986
Title:
MAGNETIC TRANSDUCER HEAD STRUCTURE
15
Patent #:
Issue Dt:
02/21/1989
Application #:
07009448
Filing Dt:
02/02/1987
Title:
CARTRIDGE TAPE DRIVE
16
Patent #:
Issue Dt:
07/18/1989
Application #:
07036915
Filing Dt:
04/10/1987
Title:
TRANSDUCER HEAD CORE STRUCTURE WITH RECESSED MAGNETIC CLOSURES
17
Patent #:
Issue Dt:
03/26/1991
Application #:
07228318
Filing Dt:
08/04/1988
Title:
METHOD AND APPARATUS FOR REMOVING DATA STREAM VARIATIONS
18
Patent #:
Issue Dt:
09/04/1990
Application #:
07241090
Filing Dt:
09/06/1988
Title:
MAGNETIC TRANSDUCER HEAD STRUCTURE WITH REDUCED LEAKAGE BETWEEN CORE CIRCUITS
19
Patent #:
Issue Dt:
03/19/1991
Application #:
07314376
Filing Dt:
02/22/1989
Title:
HEAD-POSITIONER ARM FOR DATA RECORDERS
20
Patent #:
Issue Dt:
09/17/1991
Application #:
07314454
Filing Dt:
02/22/1989
Title:
LEAD SCREW AND FOLLOWER-TYPE HEAD POSITIONER FOR DATA RECORDERS
21
Patent #:
Issue Dt:
10/08/1991
Application #:
07321915
Filing Dt:
03/10/1989
Title:
METHOD AND APPARATUS FOR SERVO-POSITIONING MOVABLE TRANSDUCER HEADS
Assignor
1
Exec Dt:
04/24/1990
Assignee
1
Correspondence name and address
KNOBBE, MARTENS, OLSON & BEAR
620 NEWPORT CENTER DR.
SIXTEENTH FLR.
NEWPORT BEACH, CA 92660-8016

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