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Kohji Takasaki
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Disk drive device and servo control method thereof
Patent number
7,808,739
Issue date
Oct 5, 2010
Hitachi Global Storage Technologies Netherlands B.V.
Kohji Takasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of writing pattern in disk, method of following track on dis...
Patent number
7,646,561
Issue date
Jan 12, 2010
Hitachi Global Storage Technologies Netherlands B.V.
Kohji Takasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Storage devices and method of transferring file between the devices
Patent number
7,620,740
Issue date
Nov 17, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Makoto Takase
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of writing pattern on media and data storage device
Patent number
7,532,424
Issue date
May 12, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive and method for registering defective sector usi...
Patent number
7,486,467
Issue date
Feb 3, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and data storage device for writing patterns onto recording...
Patent number
7,286,316
Issue date
Oct 23, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device, data read correction mechanism, and data read...
Patent number
7,023,638
Issue date
Apr 4, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Nobuya Matsubara
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Disk drive device and servo control method thereof
Publication number
20090135516
Publication date
May 28, 2009
Kohji Takasaki
G11 - INFORMATION STORAGE
Information
Patent Application
Method for forming servo pattern and magnetic disk drive
Publication number
20090009904
Publication date
Jan 8, 2009
Kei Yasuna
G11 - INFORMATION STORAGE
Information
Patent Application
Method of writing pattern in disk, method of following track on dis...
Publication number
20080068741
Publication date
Mar 20, 2008
Hitachi Global Storage Technologies Netherlands B.V.
Kohji Takasaki
G11 - INFORMATION STORAGE
Information
Patent Application
Disk drive apparatus and method for writing and/or reading user dat...
Publication number
20070247736
Publication date
Oct 25, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk drive, method for registering defective sector, and m...
Publication number
20070121235
Publication date
May 31, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Application
Method of writing pattern on media and data storage device
Publication number
20070025007
Publication date
Feb 1, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Application
Method and data storage device for writing patterns onto recording...
Publication number
20060262449
Publication date
Nov 23, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Fuminori Sai
G11 - INFORMATION STORAGE
Information
Patent Application
Storage devices and method of transferring file between the devices
Publication number
20050207253
Publication date
Sep 22, 2005
Hitachi Global Storage Technologies Netherlands B.V.
Makoto Takase
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Data storage device, data read correction mechanism, and data read...
Publication number
20040120063
Publication date
Jun 24, 2004
Hitachi Global Storage Technologies
Nobuya Matsubara
H03 - BASIC ELECTRONIC CIRCUITRY