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Yasuo Tanaka
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Nagaoka, JP
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last 30 patents
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Patent Grant
Magnetic head for vertical magnetic recording and method of produci...
Patent number
4,811,142
Issue date
Mar 7, 1989
Alps Electric Co.
Keishi Nakashima
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic head
Patent number
4,780,780
Issue date
Oct 25, 1988
Alps Electric Co., Ltd.
Yasuo Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head formed by composite main pole film and winding core f...
Patent number
4,768,121
Issue date
Aug 30, 1988
Alps Electric Co., Ltd.
Keishi Nakashima
G11 - INFORMATION STORAGE