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Makoto Horisaki
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Odawara, JP
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Patents Grants
last 30 patents
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Patent Grant
Magnetic disk apparatus and servo signal recording method
Patent number
7,116,509
Issue date
Oct 3, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Kei Yasuna
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic disk apparatus and servo pattern recording method therefor
Patent number
7,085,084
Issue date
Aug 1, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Kei Yasuna
G11 - INFORMATION STORAGE
Information
Patent Grant
Servo pattern writing method and apparatus thereof
Patent number
6,947,244
Issue date
Sep 20, 2005
Hitachi Global Storage Technologies Japan, Ltd.
Hiroshi Kawaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive for compensating repeatable runout error
Patent number
6,898,047
Issue date
May 24, 2005
Hitachi Global Storage Technologies Japan, Ltd.
Kazuhisa Shishida
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Magnetic disk drive
Publication number
20050201003
Publication date
Sep 15, 2005
Hitachi Global Storage Technologies Japan, Ltd.
Kazuhisa Shishida
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk apparatus and servo pattern recording method therefor
Publication number
20050052769
Publication date
Mar 10, 2005
Kei Yasuna
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk apparatus and servo signal recording method
Publication number
20040190184
Publication date
Sep 30, 2004
Kei Yasuna
G11 - INFORMATION STORAGE
Information
Patent Application
Servo pattern writing method and apparatus thereof
Publication number
20030142436
Publication date
Jul 31, 2003
Hitachi, Ltd
Hiroshi Kawaguchi
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk drive
Publication number
20030002200
Publication date
Jan 2, 2003
Kazuhisa Shishida
G11 - INFORMATION STORAGE