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Yuji Nishimura
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Odawara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Falling sensor and the information processing device making use of it
Patent number
7,301,721
Issue date
Nov 27, 2007
Hitachi Global Storage Technologies Japan, Ltd.
Tatsuya Ito
G11 - INFORMATION STORAGE
Information
Patent Grant
Falling sensor and the information processing device making use of it
Patent number
6,995,939
Issue date
Feb 7, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Tatsuya Ito
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotary disk type storage device
Patent number
6,876,513
Issue date
Apr 5, 2005
Hitachi, Ltd.
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Falling sensor and the information processing device making use of it
Patent number
6,771,449
Issue date
Aug 3, 2004
Hitachi Global Storage Technologies Japan, Ltd.
Tatsuya Ito
G11 - INFORMATION STORAGE
Information
Patent Grant
Bearing device and spindle motor provided with the bearing device
Patent number
5,885,005
Issue date
Mar 23, 1999
Hitachi, Ltd.
Masaaki Nakano
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Magnetic disk apparatus having improved support for head assembly
Patent number
5,504,636
Issue date
Apr 2, 1996
Hitachi, Ltd.
Tetsuo Yuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk storage system
Patent number
5,414,591
Issue date
May 9, 1995
Hitachi, Ltd.
Hideyuki Kimura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for writing magnetic head positioning signal
Patent number
5,325,245
Issue date
Jun 28, 1994
Hitachi, Ltd.
Jyousei Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Voice coil motor with discrete flux paths
Patent number
5,267,111
Issue date
Nov 30, 1993
Hitachi, Ltd.
Yuji Nishimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk system with sub-actuators for fine head displacement
Patent number
5,189,578
Issue date
Feb 23, 1993
Hitachi, Ltd.
Kenji Mori
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Falling sensor and the information processing device making use of it
Publication number
20060072236
Publication date
Apr 6, 2006
Tatsuya Ito
G01 - MEASURING TESTING
Information
Patent Application
Falling sensor and the information processing device making use of it
Publication number
20040240098
Publication date
Dec 2, 2004
Tatsuya Ito
G01 - MEASURING TESTING
Information
Patent Application
Rotary disk type storage device
Publication number
20030081348
Publication date
May 1, 2003
Keiko Watanabe
G11 - INFORMATION STORAGE