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Patent Assignment Details
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Reel/Frame:006139/0340   Pages: 4
Recorded: 06/03/1992
Conveyance: NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 04/30/1992
Total properties: 15
1
Patent #:
Issue Dt:
02/05/1985
Application #:
06280127
Filing Dt:
07/02/1981
Title:
METHOD AND APPARATUS FOR NORMALIZING SERVO-POSITIONING SIGNALS
2
Patent #:
Issue Dt:
07/24/1984
Application #:
06280137
Filing Dt:
07/02/1981
Title:
METHOD FOR CONTROLLING A DISC HEAD
3
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
4
Patent #:
Issue Dt:
08/28/1984
Application #:
06280139
Filing Dt:
07/02/1981
Title:
POSITIONER APPARATUS FOR TAPE RECORDER HEADS
5
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
6
Patent #:
Issue Dt:
03/03/1987
Application #:
06589146
Filing Dt:
03/13/1984
Title:
MINIATURIZED CARTRIDGE-TYPE TAPE DRIVE FOR DATA PROCESSORS
7
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
8
Patent #:
Issue Dt:
09/08/1987
Application #:
06683301
Filing Dt:
12/18/1984
Title:
ELECTRIC MOTOR HOUSING
9
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
10
Patent #:
Issue Dt:
02/21/1989
Application #:
07009448
Filing Dt:
02/02/1987
Title:
CARTRIDGE TAPE DRIVE
11
Patent #:
Issue Dt:
03/26/1991
Application #:
07228318
Filing Dt:
08/04/1988
Title:
METHOD AND APPARATUS FOR REMOVING DATA STREAM VARIATIONS
12
Patent #:
Issue Dt:
03/19/1991
Application #:
07314376
Filing Dt:
02/22/1989
Title:
HEAD-POSITIONER ARM FOR DATA RECORDERS
13
Patent #:
Issue Dt:
09/17/1991
Application #:
07314454
Filing Dt:
02/22/1989
Title:
LEAD SCREW AND FOLLOWER-TYPE HEAD POSITIONER FOR DATA RECORDERS
14
Patent #:
Issue Dt:
10/08/1991
Application #:
07321915
Filing Dt:
03/10/1989
Title:
METHOD AND APPARATUS FOR SERVO-POSITIONING MOVABLE TRANSDUCER HEADS
15
Patent #:
Issue Dt:
05/29/1990
Application #:
07371416
Filing Dt:
06/15/1989
Title:
DRIVE FOR END LOADING AND TRANSVERSELY SHIFTING TAPE CARTRIDGE
Assignor
1
Exec Dt:
04/30/1992
Assignee
1
1650 SUNFLOWER AVE.
COSTA MESA, CALIFORNIA 92626
Correspondence name and address
IRWIN MAGNETIC SYSTEMS, INC.
WILLIAM W. DEWITT
695 KENMOOR, S.E.
P.O. BOX 2567
GRAND RAPIDS, MI 49501

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