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Takashi Doi
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Hadano, JP
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last 30 patents
Information
Patent Grant
Method and system for storing and managing a plurality of informati...
Patent number
5,353,422
Issue date
Oct 4, 1994
Hitachi, Ltd.
Takashi Kobayashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Buffered peripheral system and method for backing up and retrieving...
Patent number
5,193,154
Issue date
Mar 9, 1993
Hitachi, Ltd.
Hiroyuki Kitajima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for controlling data writing in magnetic recor...
Patent number
5,163,134
Issue date
Nov 10, 1992
Hitachi, Ltd.
Katsuharu Kakuse
G11 - INFORMATION STORAGE
Information
Patent Grant
Automatic storage system and method for information recording media
Patent number
5,060,090
Issue date
Oct 22, 1991
Hitachi, Ltd.
Takashi Kobayashi
G11 - INFORMATION STORAGE
Information
Patent Grant
I/O control system and method
Patent number
4,926,324
Issue date
May 15, 1990
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information recording control system reusing a defective area
Patent number
4,833,665
Issue date
May 23, 1989
Hitachi, Ltd.
Kenji Tokumitsu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of controlling write operation for rotating type recording m...
Patent number
4,760,566
Issue date
Jul 26, 1988
Hitachi, Ltd.
Masaaki Kobayashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Data transfer control system for controlling data transfer between...
Patent number
4,754,399
Issue date
Jun 28, 1988
Hitachi, Ltd.
Akira Yamamoto
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data recording and reproducing method
Patent number
4,677,606
Issue date
Jun 30, 1987
Hitachi, Ltd.
Mikito Ogata
G11 - INFORMATION STORAGE
Information
Patent Grant
Information recording system and method for using alternative recor...
Patent number
4,638,472
Issue date
Jan 20, 1987
Hitachi, Ltd.
Mikito Ogata
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for accessing to a rotating record medium and an access cont...
Patent number
4,611,314
Issue date
Sep 9, 1986
Hitachi, Ltd.
Mikito Ogata
G06 - COMPUTING CALCULATING COUNTING