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Michiki Naganawa
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Nagano, JP
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last 30 patents
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Patent Grant
Magneto-optical disk
Patent number
5,620,766
Issue date
Apr 15, 1997
TDK Corporation
Kenji Uchiyama
G11 - INFORMATION STORAGE
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Patent Grant
Optical disk substrate and optical disk using the same
Patent number
5,541,910
Issue date
Jul 30, 1996
TDK Corporation
Toshifumi Tanaka
G11 - INFORMATION STORAGE