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Iwao Tsugawa
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Machida, JP
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last 30 patents
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Patent Grant
Optical recording medium having a non-volatile identification code...
Patent number
5,812,501
Issue date
Sep 22, 1998
Fujitsu Limited
Mineo Moribe
G11 - INFORMATION STORAGE
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Patent Grant
Optical recording medium having a non-volatile identification code...
Patent number
5,661,703
Issue date
Aug 26, 1997
Fujitsu Limited
Mineo Moribe
G11 - INFORMATION STORAGE
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Patent Grant
Optical disc medium
Patent number
5,144,618
Issue date
Sep 1, 1992
Fujitsu Limited
Yasuyuki Goto
G11 - INFORMATION STORAGE
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Patent Grant
Compatible optical disk
Patent number
4,984,232
Issue date
Jan 8, 1991
Fujitsu Limited
Kenichi Utsumi
G11 - INFORMATION STORAGE
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Patent Grant
Process for manufacturing an optical recording medium
Patent number
4,889,746
Issue date
Dec 26, 1989
Fujitsu Limited
Kenichi Utsumi
G11 - INFORMATION STORAGE