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Yasutaro Uesaka
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Kokubunji, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic recording medium and magnetic recording and reproducing ap...
Patent number
7,157,162
Issue date
Jan 2, 2007
Hitachi Global Storage Technologies Japan, Ltd.
Kazusuke Yamanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium possessing a fluctuation field of not les...
Patent number
6,846,577
Issue date
Jan 25, 2005
Hitachi, Ltd.
Kazusuke Yamanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording and reproducing ap...
Patent number
6,613,428
Issue date
Sep 2, 2003
Hitachi, Ltd.
Kazusuke Yamanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic thin film magnetic recording medium
Patent number
6,310,748
Issue date
Oct 30, 2001
Hitachi, Ltd.
Kazusuke Yamanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for producing a rigid magnetic disk by longitudinally gener...
Patent number
5,180,608
Issue date
Jan 19, 1993
Hitachi, Ltd.
Katsuyoshi Chiba
G11 - INFORMATION STORAGE
Information
Patent Grant
Hard disk magnetic recording medium comprising magnetic powder and...
Patent number
5,180,616
Issue date
Jan 19, 1993
Hitachi, Ltd.
Hajime Fukke
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for magnetic orientation of magnetic recording medium using...
Patent number
5,034,243
Issue date
Jul 23, 1991
Hitachi, Ltd.
Katsuyoshi Chiba
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic coated recording medium and method of manfacturing the same
Patent number
5,028,496
Issue date
Jul 2, 1991
Hitachi, Ltd.
Yasutaro Uesaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
4,722,869
Issue date
Feb 2, 1988
Hitachi, Ltd.
Yukio Honda
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
4,707,756
Issue date
Nov 17, 1987
Hitachi, Ltd.
Masaaki Futamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording and reproducing system
Patent number
4,631,612
Issue date
Dec 23, 1986
Kazuo Shiiki
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium and manufacturing method th...
Patent number
4,621,030
Issue date
Nov 4, 1986
Hitachi, Ltd.
Yasutaro Uesaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
4,576,876
Issue date
Mar 18, 1986
Hitachi, Ltd.
Kazuo Shiiki
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
4,544,591
Issue date
Oct 1, 1985
Hitachi, Ltd.
Yasutaro Uesaka
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Magnetic recording medium and magnetic recording and reproducing ap...
Publication number
20050123806
Publication date
Jun 9, 2005
Kazusuke Yamanaka
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and magnetic recording and reproducing ap...
Publication number
20030170497
Publication date
Sep 11, 2003
Kazusuke Yamanaka
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and magnetic recording and reproducing ap...
Publication number
20010021465
Publication date
Sep 13, 2001
Kazusuke Yamanaka
G11 - INFORMATION STORAGE