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Kenji Ayama
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Tokyo, JP
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last 30 patents
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Patent Grant
Magnetic recording medium and manufacturing method therefor
Patent number
6,670,055
Issue date
Dec 30, 2003
Hoya Corporation
Hiroshi Tomiyasu
G11 - INFORMATION STORAGE
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last 30 patents
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Patent Application
Magnetic recording medium and manufacturing method therefor
Publication number
20020119350
Publication date
Aug 29, 2002
Hoya Corporation
Hiroshi Tomiyasu
G11 - INFORMATION STORAGE