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Yoshibumi Matsuda
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Hiratsuka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic shield having improved resistance to the hard bias magneti...
Patent number
8,630,069
Issue date
Jan 14, 2014
HGST Netherlands B.V.
Norihiro Okawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing magnetic head device
Patent number
7,159,303
Issue date
Jan 9, 2007
Hitachi Global Storage Technologies, Ltd.
Ryoichi Nakatani
G11 - INFORMATION STORAGE
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 media and magnetic recording system using the same
Patent number
7,056,604
Issue date
Jun 6, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Tetsuya Kanbe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic apparatus with perpendicular recording medium and head hav...
Patent number
7,054,120
Issue date
May 30, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Ryoichi Nakatani
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording apparatus
Patent number
7,005,202
Issue date
Feb 28, 2006
Hitachi, Ltd.
Tetsuya Kanbe
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 manufacturing method thereof
Patent number
6,756,113
Issue date
Jun 29, 2004
Hitachi Storage Technologies Japan, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic disk apparatus using the same
Patent number
6,703,148
Issue date
Mar 9, 2004
Hitachi, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium, method of fabricating magnetic recording...
Patent number
6,692,843
Issue date
Feb 17, 2004
Hitachi Global Storage Technologies Japan, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with conductors formed on endlayers of a multilayer f...
Patent number
6,687,099
Issue date
Feb 3, 2004
Hitachi, Ltd.
Ryoichi Nakatani
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording media for longitudinal recording, process for pr...
Patent number
6,627,253
Issue date
Sep 30, 2003
Hitachi, Ltd.
Hiroyuki Suzuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic disk apparatus using the same
Patent number
6,623,873
Issue date
Sep 23, 2003
Hitachi, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording apparatus
Patent number
6,623,874
Issue date
Sep 23, 2003
Hitachi, Ltd.
Tetsuya Kanbe
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 recording media and magnetic recording system using the same
Patent number
6,596,420
Issue date
Jul 22, 2003
Hitachi, Ltd.
Tetsuya Kanbe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium, producing method of the same and magneti...
Patent number
6,544,667
Issue date
Apr 8, 2003
Hitachi, Ltd.
Yuzuru Hosoe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus including magnetic head having multilayered...
Patent number
6,483,677
Issue date
Nov 19, 2002
Hitachi, Ltd.
Ryoichi Nakatani
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording media and magnetic recording system using the same
Patent number
6,403,240
Issue date
Jun 11, 2002
Hitachi, Ltd.
Tetsuya Kanbe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium, method for producing the same and magnet...
Patent number
6,372,367
Issue date
Apr 16, 2002
Hitachi, Ltd.
Yoshibumi Matsuda
B32 - LAYERED PRODUCTS
Information
Patent Grant
Magnetic storage system
Patent number
6,356,406
Issue date
Mar 12, 2002
Hitachi, Ltd.
Hisashi Takano
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording media for longitudinal recording
Patent number
6,335,103
Issue date
Jan 1, 2002
Hitachi, Ltd.
Hiroyuki Suzuki
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
Magnetoresistance effect elements and magnetic heads using the tunn...
Patent number
6,278,593
Issue date
Aug 21, 2001
Hitachi, Ltd.
Ryoichi Nakatani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetic recording medium, method of fabricating magnetic recording...
Patent number
6,197,367
Issue date
Mar 6, 2001
Hitachi, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording drive having arrangement for averaging useful li...
Patent number
6,069,762
Issue date
May 30, 2000
Hitachi, Ltd.
Hajime Aoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording drive
Patent number
6,014,275
Issue date
Jan 11, 2000
Hitachi, Ltd.
Hajime Aoi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetoresistance effect multilayer film with ferromagnetic film su...
Patent number
6,011,674
Issue date
Jan 4, 2000
Hitachi, Ltd.
Ryoichi Nakatani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetic recording media for longitudinal recording
Patent number
6,010,794
Issue date
Jan 4, 2000
Hitachi, Ltd.
Hiroyuki Suzuki
Information
Patent Grant
Magnetic recording medium
Patent number
5,906,884
Issue date
May 25, 1999
Hitachi, Ltd.
Yotsuo Yahisa
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Perpendicular magnetic recording medium and method for manufacturin...
Publication number
20080113225
Publication date
May 15, 2008
Hitachi Global Storage Technologies Inc.
Kiwamu Tanahashi
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
Publication number
20060152862
Publication date
Jul 13, 2006
Ryoichi Nakatani
G01 - MEASURING TESTING
Information
Patent Application
Defect inspection method for perpendicular magnetic recording mediu...
Publication number
20060109000
Publication date
May 25, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Kiyoshi Makino
G01 - MEASURING TESTING
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 manufacturing method thereof
Publication number
20040213991
Publication date
Oct 28, 2004
Hitachi Global Storage Technologies Japan, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
Publication number
20040090850
Publication date
May 13, 2004
Hitachi, Ltd.
Ryoichi Nakatani
G01 - MEASURING TESTING
Information
Patent Application
Magnetic recording media and magnetic recording system using the same
Publication number
20030211364
Publication date
Nov 13, 2003
Tetsuya Kanbe
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
Magnetoresistance effect elements, magnetic heads and magnetic stor...
Publication number
20030117750
Publication date
Jun 26, 2003
Hitachi, Ltd.
Ryoichi Nakatani
G01 - MEASURING TESTING
Information
Patent Application
Magnetic recording medium, producing method of the same magnetic re...
Publication number
20030118871
Publication date
Jun 26, 2003
Yuzuru Hosoe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and magnetic disk apparatus using the same
Publication number
20030003327
Publication date
Jan 2, 2003
Hitachi, Ltd.
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and manufacturing method thereof
Publication number
20020197515
Publication date
Dec 26, 2002
Yoshibumi Matsuda
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording media and magnetic recording system using the same
Publication number
20020150796
Publication date
Oct 17, 2002
Tetsuya Kanbe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and magnetic recording apparatus
Publication number
20020064691
Publication date
May 30, 2002
Tetsuya Kanbe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
Publication number
20020018325
Publication date
Feb 14, 2002
Hitachi, Ltd.
Ryoichi Nakatani
B82 - NANO-TECHNOLOGY
Information
Patent Application
Magnetic recording media for longitudinal recording, process for pr...
Publication number
20010053458
Publication date
Dec 20, 2001
Hitachi, Ltd.
Hiroyuki Suzuki
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
Information
Patent Application
Magnetic recording medium, method of fabricating magnetic recording...
Publication number
20010008716
Publication date
Jul 19, 2001
Yoshibumi Matsuda
G11 - INFORMATION STORAGE