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Eisei Togawa
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Odawara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic head and magnetic head manufacturing method
Patent number
6,690,544
Issue date
Feb 10, 2004
Hitachi, Ltd.
Atsuko Okawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head and magnetic head manufacturing method
Patent number
6,504,680
Issue date
Jan 7, 2003
Hitachi, Ltd.
Atsuko Okawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head and magnetic head manufacturing method
Patent number
6,278,582
Issue date
Aug 21, 2001
Hiatchi, Ltd.
Atsuko Okawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film magnetic head having non-linear tapered rails
Patent number
6,198,601
Issue date
Mar 6, 2001
Hitachi, Ltd.
Yasuo Hira
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Information
Patent Grant
Thin film magnetic head having non-linear rails
Patent number
5,910,864
Issue date
Jun 8, 1999
Hitachi, Ltd.
Yasuo Hira
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film magnetic head, process for production thereof
Patent number
5,567,333
Issue date
Oct 22, 1996
Hitachi, Ltd.
Yasuo Hira
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Information
Patent Grant
Negative pressure flying head slider having siderails with narrow w...
Patent number
5,430,591
Issue date
Jul 4, 1995
Hitachi, Ltd.
Yoshinori Takeuchi
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Information
Patent Grant
Process for producing magnetic head slider
Patent number
5,329,689
Issue date
Jul 19, 1994
Hitachi, Ltd.
Kasufumi Azuma
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Information
Patent Grant
Thin film magnetic head and manufacturing method therefor
Patent number
5,241,440
Issue date
Aug 31, 1993
Hitachi, Ltd.
Eizi Ashida
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Information
Patent Grant
Method of producing a thin film magnetic head
Patent number
4,841,624
Issue date
Jun 27, 1989
Hitachi, Ltd.
Eisei Togawa
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Information
Patent Grant
Thin film magnetic head and method of manufacture
Patent number
4,841,402
Issue date
Jun 20, 1989
Hitachi, Ltd.
Tadashi Imanaka
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Patents Applications
last 30 patents
Information
Patent Application
Magnetic head and magnetic head manufacturing method
Publication number
20030090840
Publication date
May 15, 2003
Atsuko Okawa
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head and magnetic head manufacturing method
Publication number
20020027746
Publication date
Mar 7, 2002
Atsuko Okawa
G11 - INFORMATION STORAGE