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Tatsuro Sasamoto
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Servo pattern writing apparatus, servo pattern writing method, serv...
Patent number
7,589,929
Issue date
Sep 15, 2009
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk device conducting a disturbance compensation based on a time-i...
Patent number
6,909,574
Issue date
Jun 21, 2005
Fujitsu Limited
Koichi Aikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive unit and control method for same
Patent number
6,721,122
Issue date
Apr 13, 2004
Fujitsu Limited
Koichi Aikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Storage device
Patent number
6,690,549
Issue date
Feb 10, 2004
Fujitsu Limited
Koichi Aikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Servo information writing method and storage device
Patent number
6,522,488
Issue date
Feb 18, 2003
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Calibration method for acceleration sensor in storage device and st...
Patent number
6,295,507
Issue date
Sep 25, 2001
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk device and disk device calibrating method
Patent number
6,239,940
Issue date
May 29, 2001
Fujitsu, Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Servo pattern writing method for magnetic disk drives, and magnetic...
Patent number
6,064,541
Issue date
May 16, 2000
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Information recording medium having divided cylinder address storage
Patent number
6,034,830
Issue date
Mar 7, 2000
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for reliably positioning a head in a disk drive to a guard b...
Patent number
5,903,411
Issue date
May 11, 1999
Fujitsu Limited
Isamu Tomita
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk apparatus for controlling a seek operation of a read/write hea...
Patent number
5,796,546
Issue date
Aug 18, 1998
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus, recording and accessing method for perform...
Patent number
5,784,220
Issue date
Jul 21, 1998
Fujitsu Limited
Kazuo Nishimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus, recording medium, and accessing method for...
Patent number
5,636,075
Issue date
Jun 3, 1997
Fujitsu Limited
Kazuo Nishimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of controlling a start-up of a motor used for a disk apparatus
Patent number
5,623,379
Issue date
Apr 22, 1997
Fujitsu Limited
Kazuo Nishimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for measuring offset of head from servo pattern of data s...
Patent number
5,592,347
Issue date
Jan 7, 1997
Fujitsu Limited
Kazunori Mori
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus with improved positioning control of magnet...
Patent number
5,541,785
Issue date
Jul 30, 1996
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Head exchange system for disc drive system controlling busy signals...
Patent number
5,109,502
Issue date
Apr 28, 1992
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Servo pattern writing apparatus, servo pattern writing method, serv...
Publication number
20080158717
Publication date
Jul 3, 2008
Fujitsu Limited
Tatsuro Sasamoto
G11 - INFORMATION STORAGE
Information
Patent Application
Disk drive unit and control method for same
Publication number
20020135928
Publication date
Sep 26, 2002
FUJITSU LIMITED
Koichi Aikawa
G11 - INFORMATION STORAGE
Information
Patent Application
Disk device conducting a disturbance compensation based on a time-i...
Publication number
20020109932
Publication date
Aug 15, 2002
FUJITSU LIMITED
Koichi Aikawa
G11 - INFORMATION STORAGE
Information
Patent Application
Servo information writing method and storage device
Publication number
20010000302
Publication date
Apr 19, 2001
FUJITSU LIMITED
Tatsuro Sasamoto
G11 - INFORMATION STORAGE