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Yuzo Murayama
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Yokohama, JP
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last 30 patents
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Patent Grant
Magnetic disk and a glass substrate for the magnetic disk
Patent number
5,926,352
Issue date
Jul 20, 1999
AG Technology Co., Ltd.
Yuzo Murayama
G11 - INFORMATION STORAGE
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Patent Grant
Method for producing a magnetic disk
Patent number
5,738,906
Issue date
Apr 14, 1998
AG Technology Co., Ltd.
Toru Momose
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic disc
Patent number
5,549,954
Issue date
Aug 27, 1996
AG Technology Co., Ltd.
Haruhiko Otsuka
B82 - NANO-TECHNOLOGY