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Shigekazu Suwabe
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Kumagaya, JP
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last 30 patents
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Patent Grant
Magnetic alloy with ultrafine crystal grains and method of producin...
Patent number
5,591,276
Issue date
Jan 7, 1997
Hitachi Metals, Ltd.
Yoshihito Yoshizawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Soft magnetic alloy with ultrafine crystal grains and method of pro...
Patent number
5,151,137
Issue date
Sep 29, 1992
Hitachi Metals Ltd.
Yoshihito Yoshizawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Flying-type composite magnetic head
Patent number
5,010,431
Issue date
Apr 23, 1991
Hitachi Metals, Ltd.
Tadashi Shinohara
G11 - INFORMATION STORAGE
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Patent Grant
Magnetic head containing an Fe-base soft magnetic alloy layer
Patent number
4,918,555
Issue date
Apr 17, 1990
Hitachi Metals, Ltd.
Yoshihito Yoshizawa
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...