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Shigeru Yamaguchi
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Fukushima-ken, JP
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last 30 patents
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Patent Grant
Medium distinguishing method of a disk used in a disk drive
Patent number
6,515,816
Issue date
Feb 4, 2003
Alps Electric Co., Ltd.
Hiroshi Wakuda
G11 - INFORMATION STORAGE
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Patent Grant
Bearing structure for stepping motor
Patent number
5,859,485
Issue date
Jan 12, 1999
Alps Electric Co., Ltd.
Kenji Uehara
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...