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Reel/Frame:008545/0682   Pages: 9
Recorded: 07/03/1997
Conveyance: SEE RECORDING AT REEL 8568, FRAME 0400.
Total properties: 232
Page 1 of 3
Pages: 1 2 3
1
Patent #:
Issue Dt:
Application #:
05938380
Filing Dt:
Title:
2
Patent #:
Issue Dt:
Application #:
05938429
Filing Dt:
Title:
3
Patent #:
Issue Dt:
01/15/1980
Application #:
05943059
Filing Dt:
09/18/1978
Title:
FILE PROTECT AND AMOUNT OF TAPE SENSING APPARATUS
4
Patent #:
Issue Dt:
12/02/1980
Application #:
06066792
Filing Dt:
08/15/1979
Title:
SLOT LOADED, LOW PROFILE MAGNETIC TAPE DRIVE
5
Patent #:
Issue Dt:
01/06/1981
Application #:
06078845
Filing Dt:
09/25/1979
Title:
LOW PROFILE MAGNETIC TAPE DRIVE WITH VACUUM ACTUATED AUTO-THREADING
6
Patent #:
Issue Dt:
02/05/1985
Application #:
06280127
Filing Dt:
07/02/1981
Title:
METHOD AND APPARATUS FOR NORMALIZING SERVO-POSITIONING SIGNALS
7
Patent #:
Issue Dt:
07/24/1984
Application #:
06280137
Filing Dt:
07/02/1981
Title:
METHOD FOR CONTROLLING A DISC HEAD
8
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
9
Patent #:
Issue Dt:
08/28/1984
Application #:
06280139
Filing Dt:
07/02/1981
Title:
POSITIONER APPARATUS FOR TAPE RECORDER HEADS
10
Patent #:
Issue Dt:
11/08/1983
Application #:
06309573
Filing Dt:
10/08/1981
Title:
STREAMING CARTRIDGE TAPE DRIVE
11
Patent #:
Issue Dt:
05/24/1983
Application #:
06320852
Filing Dt:
11/13/1981
Title:
SLOT LOADED, LOW PROFILE MAGNETIC TAPE DRIVE
12
Patent #:
Issue Dt:
08/14/1984
Application #:
06333309
Filing Dt:
12/22/1981
Title:
DIGITAL TAPE ERASURE CONDITIONING SYSTEM
13
Patent #:
Issue Dt:
02/05/1985
Application #:
06360696
Filing Dt:
03/22/1982
Title:
TAPE CARTRIDGE RECEPTACLE
14
Patent #:
Issue Dt:
07/10/1984
Application #:
06369564
Filing Dt:
04/19/1982
Title:
DISK CARTRIDGE
15
Patent #:
Issue Dt:
02/19/1985
Application #:
06385082
Filing Dt:
06/04/1982
Title:
CAPSTANLESS MAGNETIC TAPE DRIVE WITH ELECTRONIC EQUIVALENT TO LENGTH OF TAPE
16
Patent #:
Issue Dt:
02/25/1986
Application #:
06441762
Filing Dt:
11/15/1982
Title:
CARTRIDGE TAPE DRIVE
17
Patent #:
Issue Dt:
09/10/1985
Application #:
06444712
Filing Dt:
11/26/1982
Title:
RECORDING SYSTEM FOR RECORDING DATA ON TAPE IN A DISK-RECORDING FORMAT
18
Patent #:
Issue Dt:
12/17/1985
Application #:
06444834
Filing Dt:
11/26/1982
Title:
TAPE CARTRIDGE DRIVE WITH MOVABLE READ/WRITE HEAD
19
Patent #:
Issue Dt:
12/03/1985
Application #:
06555373
Filing Dt:
11/28/1983
Title:
TAPE CARTRIDGE DRIVE WITH CARTRIDGE DOOR OPENING MECHANISM
20
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
21
Patent #:
Issue Dt:
03/03/1987
Application #:
06589146
Filing Dt:
03/13/1984
Title:
MINIATURIZED CARTRIDGE-TYPE TAPE DRIVE FOR DATA PROCESSORS
22
Patent #:
Issue Dt:
02/17/1987
Application #:
06594940
Filing Dt:
03/29/1984
Title:
CIRCUIT AND METHODOLOGY FOR READING AND TRACKING BINARY DATA FROM MAGNETIC TAPE INDEPENDENTLY OF THE DATA PATTERN ON THE TAPE
23
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
24
Patent #:
Issue Dt:
09/02/1986
Application #:
06614519
Filing Dt:
05/29/1984
Title:
A PRECISION BEARING FOR RECIPROCATING A MAGNETIC HEAD
25
Patent #:
Issue Dt:
06/16/1987
Application #:
06628110
Filing Dt:
07/06/1984
Title:
CARTRIDGE TAPE DRIVE WITH FRICTION ROLLER TO OPEN CARTRIDGE DOOR
26
Patent #:
Issue Dt:
06/09/1987
Application #:
06794070
Filing Dt:
11/01/1985
Title:
SYSTEM FOR TRANSFERRING DIGITAL DATA BETWEEN A HOST DEVICE AND A RECORDING MEDIUM
27
Patent #:
Issue Dt:
11/03/1987
Application #:
06794503
Filing Dt:
11/01/1985
Title:
TRANSPORT FOR TAPE CARTRIDGE WITH LEADER BLOCK
28
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
29
Patent #:
Issue Dt:
06/30/1987
Application #:
06831857
Filing Dt:
02/24/1986
Title:
ENDWISE LOADED CARTRIDGE TAPE DRIVE
30
Patent #:
Issue Dt:
11/15/1988
Application #:
06842739
Filing Dt:
03/24/1986
Title:
CARTRIDGE ALIGNMENT MECHANISM FOR TAPE DRIVE
31
Patent #:
Issue Dt:
05/24/1988
Application #:
06849146
Filing Dt:
04/07/1986
Title:
MAGNETIC HEAD POSITIONING APPARATUS
32
Patent #:
Issue Dt:
01/05/1988
Application #:
06855608
Filing Dt:
04/23/1986
Title:
STEPPING MOTOR EXCITATION SEQUENCES
33
Patent #:
Issue Dt:
05/23/1989
Application #:
06856055
Filing Dt:
04/25/1986
Title:
HEAD POSITIONING ASSEMBLY
34
Patent #:
Issue Dt:
08/09/1988
Application #:
06896392
Filing Dt:
08/13/1986
Title:
LINEAR ACTUATOR FOR AN OPTICAL DISK STORAGE APPARATUS
35
Patent #:
Issue Dt:
04/04/1989
Application #:
06915734
Filing Dt:
10/06/1986
Title:
MAGNETIC TRANSDUCER HEAD STRUCTURE
36
Patent #:
Issue Dt:
06/06/1989
Application #:
06928471
Filing Dt:
11/07/1986
Title:
CIRCUIT FOR CONTROLLING FREQUENCY AND PHASE OF VOLTAGE CONTROLLED OSCILLATOR IN A DATA SMOOTHER FOR A STREAMING CARTRIDGE TAPE DRIVE
37
Patent #:
Issue Dt:
03/28/1989
Application #:
06928472
Filing Dt:
11/07/1986
Title:
CIRCUIT FOR PROVDING A SYMMETRIC CURRENT TO THE HEAD OF A MAGNETIC RECORDING DEVICE
38
Patent #:
Issue Dt:
02/21/1989
Application #:
07009448
Filing Dt:
02/02/1987
Title:
CARTRIDGE TAPE DRIVE
39
Patent #:
Issue Dt:
07/18/1989
Application #:
07036915
Filing Dt:
04/10/1987
Title:
TRANSDUCER HEAD CORE STRUCTURE WITH RECESSED MAGNETIC CLOSURES
40
Patent #:
Issue Dt:
12/18/1990
Application #:
07057289
Filing Dt:
06/02/1987
Title:
DISK DRIVE SYSTEM CONTROLLER ARCHITECTURE
41
Patent #:
Issue Dt:
10/18/1988
Application #:
07061416
Filing Dt:
06/12/1987
Title:
OPTICAL DISK MEMORY SYSTEM WITH CLOSED LOOP MICRO-JUMP BETWEEN ADJACENT TRACKS
42
Patent #:
Issue Dt:
10/23/1990
Application #:
07147804
Filing Dt:
01/25/1988
Title:
LOW HEIGHT DISK DRIVE
43
Patent #:
Issue Dt:
08/15/1989
Application #:
07152384
Filing Dt:
02/04/1988
Title:
STREAMING TAPE DRIVE WITH DIRECT BLOCK ADDRESSABILITY
44
Patent #:
Issue Dt:
06/12/1990
Application #:
07162799
Filing Dt:
03/01/1988
Title:
DISK DRIVE APPARATUS USING DYNAMIC LOADING/UNLOADING
45
Patent #:
Issue Dt:
10/24/1989
Application #:
07163222
Filing Dt:
02/26/1988
Title:
METHOD AND APPARATUS FOR BRUSHLESS DC MOTOR SPEED CONTROL
46
Patent #:
Issue Dt:
02/28/1989
Application #:
07195408
Filing Dt:
05/16/1988
Title:
TRANSPORT FOR TAPE CARTRIDGE WITH LEADER BLOCK
47
Patent #:
Issue Dt:
03/26/1991
Application #:
07228318
Filing Dt:
08/04/1988
Title:
METHOD AND APPARATUS FOR REMOVING DATA STREAM VARIATIONS
48
Patent #:
Issue Dt:
05/09/1989
Application #:
07228832
Filing Dt:
08/03/1988
Title:
LOAD BEAM/ASSEMBLY
49
Patent #:
Issue Dt:
05/23/1989
Application #:
07239302
Filing Dt:
09/01/1988
Title:
COMPENSATION CIRCUIT FOR NULLIFYING DIFFERENTIAL OFFSET VOLTAGE AND REGULATING COMMON MODE VOLTAGE OF DIFFERENTIAL SIGNALS
50
Patent #:
Issue Dt:
09/04/1990
Application #:
07241090
Filing Dt:
09/06/1988
Title:
MAGNETIC TRANSDUCER HEAD STRUCTURE WITH REDUCED LEAKAGE BETWEEN CORE CIRCUITS
51
Patent #:
Issue Dt:
08/01/1989
Application #:
07244694
Filing Dt:
09/14/1988
Title:
EXTRACTION AND INSERTION MECHANISM FOR A LEADER BLOCK OF A TAPE CARTRIDGE
52
Patent #:
Issue Dt:
01/15/1991
Application #:
07269573
Filing Dt:
11/10/1988
Title:
VOICE COIL ACTIVATED DISK DRIVE PARKING DEVICE WITH MAGNETIC BIAS
53
Patent #:
Issue Dt:
03/19/1991
Application #:
07314376
Filing Dt:
02/22/1989
Title:
HEAD-POSITIONER ARM FOR DATA RECORDERS
54
Patent #:
Issue Dt:
09/17/1991
Application #:
07314454
Filing Dt:
02/22/1989
Title:
LEAD SCREW AND FOLLOWER-TYPE HEAD POSITIONER FOR DATA RECORDERS
55
Patent #:
Issue Dt:
06/12/1990
Application #:
07314979
Filing Dt:
02/24/1989
Title:
SELF-ALIGNING TACHOMETER AND METHOD OF MANUFACTURING SAME
56
Patent #:
Issue Dt:
06/12/1990
Application #:
07315148
Filing Dt:
02/24/1989
Title:
DISK CENTERING METHOD AND APPARATUS FOR CENTERING DISKS FOR DISK DRIVES
57
Patent #:
Issue Dt:
10/08/1991
Application #:
07321915
Filing Dt:
03/10/1989
Title:
METHOD AND APPARATUS FOR SERVO-POSITIONING MOVABLE TRANSDUCER HEADS
58
Patent #:
Issue Dt:
10/23/1990
Application #:
07341070
Filing Dt:
04/20/1989
Title:
STABILIZED DISK DRIVE SPIN MOTOR
59
Patent #:
Issue Dt:
04/28/1992
Application #:
07342985
Filing Dt:
04/25/1989
Title:
STATIONARY HEAD TAPE DRIVE WITH A MOVABLE DOOR OPENING MECHANISM
60
Patent #:
Issue Dt:
05/29/1990
Application #:
07371416
Filing Dt:
06/15/1989
Title:
DRIVE FOR END LOADING AND TRANSVERSELY SHIFTING TAPE CARTRIDGE
61
Patent #:
Issue Dt:
08/21/1990
Application #:
07375400
Filing Dt:
07/03/1989
Title:
TAPE TRANSPORT WITH RIGID ARM THREADER MECHANISM FOR LEADER BLOCK TAPE CARTRIDGE
62
Patent #:
Issue Dt:
06/18/1991
Application #:
07387944
Filing Dt:
07/31/1989
Title:
ARCHITECTURE FOR 2-1/2 INCH DIAMETER SINGLE DISK DRIVE
63
Patent #:
Issue Dt:
07/02/1991
Application #:
07392160
Filing Dt:
08/08/1989
Title:
DISK DRIVE ARCHITECTURE
64
Patent #:
Issue Dt:
06/18/1991
Application #:
07405932
Filing Dt:
09/12/1989
Title:
AUTO-LOADING TRANSPORT FOR TAPE CARTRIDGE WITH TAPE ACCESS DOOR AND BELT CAPSTAN ROLLER
65
Patent #:
Issue Dt:
08/20/1991
Application #:
07409255
Filing Dt:
09/19/1989
Title:
ACTUATOR FOR DISK DRIVE
66
Patent #:
Issue Dt:
03/19/1991
Application #:
07413479
Filing Dt:
09/27/1989
Title:
METHOD TO COMPENSATE FOR TAPE SLOPE AND HEAD AZIMUTH ERRORS
67
Patent #:
Issue Dt:
09/17/1991
Application #:
07420370
Filing Dt:
10/12/1989
Title:
DISK DRIVE SERVO SYSTEM USING GAIN LIMITED HIGH-FREQUENCY TRACK-FOLLOWING COMPENSATOR
68
Patent #:
Issue Dt:
12/18/1990
Application #:
07423719
Filing Dt:
10/18/1989
Title:
DISK DRIVE SYSTEM CONTROLLER ARCHITECTURE UTILIZING EMBEDDED REAL-TIME DIAGNOSTIC MONITOR
69
Patent #:
Issue Dt:
10/16/1990
Application #:
07428096
Filing Dt:
10/27/1989
Title:
VARIABLE LOAD MOTOR DRIVE CONTROL
70
Patent #:
Issue Dt:
12/15/1992
Application #:
07428501
Filing Dt:
10/26/1989
Title:
APPARATUS AND METHOD FOR AUTOMATIC WRITE CURRENT CALIBRATION IN A STREAMING TAPE DRIVE
71
Patent #:
Issue Dt:
06/29/1993
Application #:
07431575
Filing Dt:
11/03/1989
Title:
MULTIPLE ACTUATOR DISK DRIVE
72
Patent #:
Issue Dt:
06/18/1991
Application #:
07432664
Filing Dt:
11/06/1989
Title:
DISK DRIVE APPARATUS
73
Patent #:
Issue Dt:
01/14/1992
Application #:
07433586
Filing Dt:
11/08/1989
Title:
APPARATUS AND METHOD FOR AUTOMATIC ADJUSTMENT OF READ AMPLITUDE THRESHOLD IN A DIGITAL TAPE DRIVE
74
Patent #:
Issue Dt:
09/17/1991
Application #:
07434036
Filing Dt:
11/09/1989
Title:
CARTRIDGE LOADER FOR LOADING EACH OF A PLURALITY OF CARTRIDGES INTO A CARTRIDGE INSERTION SLOT
75
Patent #:
Issue Dt:
12/18/1990
Application #:
07435002
Filing Dt:
11/09/1989
Title:
DATA RANDOMIZING/DE-RANDOMIZING CIRCUIT FOR RANDOMIZING AND DE- RANDOMIZING DATA
76
Patent #:
Issue Dt:
03/31/1992
Application #:
07435008
Filing Dt:
11/09/1989
Title:
TAPE AND MECHANISM PROTECTION METHODS FOR DAT DRIVES
77
Patent #:
Issue Dt:
11/10/1992
Application #:
07436570
Filing Dt:
11/13/1989
Title:
SYSTEM FOR ASSEMBLING PLAYBACK DAT DATA FRAMES USING INDEXED FRAME BUFFER GROUP ACCORDING TO LOGICAL FRAME NUMBERS IN VALID SUBCODE OR FRAME HEADER
78
Patent #:
Issue Dt:
03/17/1992
Application #:
07453312
Filing Dt:
12/20/1989
Title:
INFORMATION RECORDING APPARATUS WITH A NON-NEWTONIAN LIQUID BEARING
79
Patent #:
Issue Dt:
12/18/1990
Application #:
07464696
Filing Dt:
01/18/1990
Title:
DISK DRIVE ARCHITECTURE
80
Patent #:
Issue Dt:
01/26/1993
Application #:
07510548
Filing Dt:
04/18/1990
Title:
METHOD AND APPARATUS FOR ALIGNING CARTRIDGES WITH A CARTRIDGE INSERTION SLOT
81
Patent #:
Issue Dt:
04/09/1991
Application #:
07526490
Filing Dt:
05/21/1990
Title:
TRACK AND HOLD PHASE LOCKED LOOP CIRCUIT
82
Patent #:
Issue Dt:
12/28/1993
Application #:
07531855
Filing Dt:
06/01/1990
Title:
LOW NOISE SPIN MOTOR FOR USE IN DISK DRIVE
83
Patent #:
Issue Dt:
10/20/1992
Application #:
07531993
Filing Dt:
05/31/1990
Title:
STORAGE MODULE CHANGER FOR A COMPUTER DATA STORAGE DRIVE
84
Patent #:
Issue Dt:
03/30/1993
Application #:
07546025
Filing Dt:
06/29/1990
Title:
APPARATUS FOR ADJUSTING A TAPE HEAD FOR A MAGNETIC TAPE
85
Patent #:
Issue Dt:
01/19/1993
Application #:
07546182
Filing Dt:
06/28/1990
Title:
SPINDLE MOTOR FOR REDUCED SIZE DISK DRIVE AND METHOD OF MAKING SAME
86
Patent #:
Issue Dt:
08/27/1991
Application #:
07559690
Filing Dt:
07/30/1990
Title:
DISK CENTERING METHOD AND APPARATUS FOR CENTERING DISKS FOR DISK DRIVES
87
Patent #:
Issue Dt:
08/13/1991
Application #:
07564864
Filing Dt:
07/06/1990
Title:
HEAD POSITIONING ASSEMBLY
88
Patent #:
Issue Dt:
07/27/1993
Application #:
07571558
Filing Dt:
08/30/1990
Title:
DISK DRIVE APPARATUS WITH CAM AND FOLLOWER FOR UNLOADING HEADS
89
Patent #:
Issue Dt:
03/09/1993
Application #:
07590608
Filing Dt:
09/25/1990
Title:
INFORMATION RECORDING APPARATUS WITH A LIQUID BEARING
90
Patent #:
Issue Dt:
03/08/1994
Application #:
07614853
Filing Dt:
11/09/1990
Title:
MULTIPLE ACTUATOR DISK DRIVE
91
Patent #:
Issue Dt:
12/14/1993
Application #:
07624747
Filing Dt:
12/10/1990
Title:
APPARATUS AND METHOD FOR REDUCING DISK DISTORTION
92
Patent #:
Issue Dt:
07/09/1991
Application #:
07643446
Filing Dt:
01/18/1991
Title:
METHOD AND APPARATUS FOR REDUCING DISK DISTORTION UNDER CLAMPING LOAD IN A DISK DRIVE APPARATUS
93
Patent #:
Issue Dt:
12/08/1992
Application #:
07643703
Filing Dt:
01/22/1991
Title:
MAGNETIC PARKING DEVICE FOR DISK DRIVE
94
Patent #:
Issue Dt:
10/13/1992
Application #:
07673643
Filing Dt:
03/22/1991
Title:
METHOD AND APPARATUS FOR TESTING BIPOLAR MAGNETS HAVING A CIRCULAR CURVATURE
95
Patent #:
Issue Dt:
10/19/1993
Application #:
07678086
Filing Dt:
03/29/1991
Title:
ADJUSTABLE WRITE EQUALIZATION FOR TAPE DRIVES
96
Patent #:
Issue Dt:
10/12/1993
Application #:
07679668
Filing Dt:
04/03/1991
Title:
RAW ERROR MONITORING AND REPORTING
97
Patent #:
Issue Dt:
06/08/1993
Application #:
07691760
Filing Dt:
04/26/1991
Title:
DEVICE FOR ALIGNING MAGNETIC TAPE TO A READ-WRITE HEAD
98
Patent #:
Issue Dt:
06/16/1992
Application #:
07731285
Filing Dt:
07/16/1991
Title:
ELECTROMAGNETIC HEAD HAVING INTERFERENCE COMPENSATION CIRCUITRY
99
Patent #:
Issue Dt:
10/20/1992
Application #:
07742207
Filing Dt:
08/05/1991
Title:
UNDER-THE-HUB DISK DRIVE SPIN MOTOR
100
Patent #:
Issue Dt:
11/23/1993
Application #:
07769036
Filing Dt:
09/30/1991
Title:
CASSETTE LOADING SYSTEM
Assignor
1
Exec Dt:
02/28/1996
Assignee
1
920 DISC DRIVE, M/S 15-7
P.O. BOX 66360
SCOTTS VALLEY, CALIFORNIA 95067
Correspondence name and address
EDWARD P. HELLER, III
P.O. BOX 66360
920 DISC DRIVE, M/S 15-7
SCOTTS VALLEY, CA 95067-0360

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