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Saburo Aso
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Saitama, JP
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last 30 patents
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Patent Grant
Optical recording medium and method of manufacturing thereof
Patent number
5,039,558
Issue date
Aug 13, 1991
Pioneer Electronic Corporation
Kunio Imai
G11 - INFORMATION STORAGE
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Patent Grant
Optical recording medium and method manufacturing thereof
Patent number
4,950,520
Issue date
Aug 21, 1990
Pioneer Electronic Corporation
Kunio Imai
G11 - INFORMATION STORAGE