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Hisamitsu Kamezaki
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Ibaraki, JP
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last 30 patents
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Patent Grant
Optical data recording medium and manufacturing method thereof
Patent number
5,904,969
Issue date
May 18, 1999
Hitachi Maxell, Ltd.
Hisamitsu Kamezaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Manufacturing apparatus and method for recording medium
Patent number
5,199,988
Issue date
Apr 6, 1993
Hitachi Maxell, Ltd.
Hisamitsu Kamezaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical data recording medium and manufacturing method thereof
Patent number
5,021,276
Issue date
Jun 4, 1991
Hitachi Maxell, Ltd.
Hisamitsu Kamezaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical data recording medium
Patent number
4,996,089
Issue date
Feb 26, 1991
Hitachi Maxell, Ltd.
Osamu Saito
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical data recording medium
Patent number
4,985,289
Issue date
Jan 15, 1991
Hitachi Maxell, Ltd.
Hisamitsu Kamezaki
B32 - LAYERED PRODUCTS