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Akihiro Ishikawa
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Neyagawa, JP
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last 30 patents
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Patent Grant
Information reproducing apparatus for detecting a reproduced area o...
Patent number
5,115,422
Issue date
May 19, 1992
Matsushita Electric Industrial Co., Ltd.
Akihiro Ishikawa
G11 - INFORMATION STORAGE
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Patent Grant
Optical information recording apparatus
Patent number
4,989,196
Issue date
Jan 29, 1991
Matsushita Electric Industrial Co., Ltd.
Akihiro Ishikawa
G11 - INFORMATION STORAGE