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Kenji Hirabayashi
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Tokyo, JP
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last 30 patents
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Patent Grant
Magnetic recording medium
Patent number
4,464,433
Issue date
Aug 7, 1984
TDK Electronics Co., Ltd.
Kenji Hirabayashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium having cobalt adsorbed iron oxide layer
Patent number
4,420,537
Issue date
Dec 13, 1983
TDK Electronics Co. Ltd.
Masashi Hayama
G11 - INFORMATION STORAGE
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Patent Grant
High density magnetic recording medium
Patent number
4,414,289
Issue date
Nov 8, 1983
TDK Electronics Co., Ltd.
Fujio Shibata
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of producing magnetic coating material for magnetic recordin...
Patent number
4,285,825
Issue date
Aug 25, 1981
TDK Electronics Co., Ltd.
Yukihiro Isobe
G11 - INFORMATION STORAGE