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Tetsuyuki Hishikawa
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Tokyo, JP
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last 30 patents
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Patent Grant
Magnetic disk system with selection of sector access mode based on...
Patent number
6,643,089
Issue date
Nov 4, 2003
NEC Corporation
Tetsuyuki Hishikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus adopting a data surface servo method in which...
Patent number
5,805,368
Issue date
Sep 8, 1998
NEC Corporation
Tetsuyuki Hishikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Hard-disk storage apparatus with memory storing data-head control i...
Patent number
5,270,885
Issue date
Dec 14, 1993
NEC Corporation
Hiroshi Satoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive having a lock mechanism for preventing rotation...
Patent number
5,157,566
Issue date
Oct 20, 1992
NEC Corporation
Tetsuyuki Hishikawa
G11 - INFORMATION STORAGE