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Hachioji, JP
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last 30 patents
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Patent Grant
Optical fungicide-treated information recording and reproducing medium
Patent number
4,672,395
Issue date
Jun 9, 1987
Konishiroku Photo Industry Co., Ltd.
Kazuo Arai
G11 - INFORMATION STORAGE
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Patent Grant
Optical information recording medium
Patent number
4,536,471
Issue date
Aug 20, 1985
Konishiroku Photo Industry Co., Ltd.
Shinichi Nishi
G11 - INFORMATION STORAGE