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Yumi Nagano
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Disk drive and control method thereof
Patent number
7,969,681
Issue date
Jun 28, 2011
Hitachi Global Storage Technologies Netherlands B.V.
Noriaki Satoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive and control method thereof
Patent number
7,864,474
Issue date
Jan 4, 2011
Hitachi Global Storage Technologies Netherlands B.V.
Noriaki Satoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of controlling a recording current, and magnetic disk device
Patent number
7,457,067
Issue date
Nov 25, 2008
Hitachi Global Storage Technologies Netherlands B.V.
Yumi Nagano
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording disk drive with reduced noise thermal flyheight control
Patent number
7,417,209
Issue date
Aug 26, 2008
Hitachi Global Storage Technologies Netherlands B.V.
John Contreras
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for controlling write current to a write head during data wr...
Patent number
6,798,598
Issue date
Sep 28, 2004
International Business Machines Corporation
Hiroaki Suzuki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Disk drive and control method thereof
Publication number
20080247079
Publication date
Oct 9, 2008
Hitachi Global Storage Technologies Netherlands B.V.
Noriaki Satoh
G11 - INFORMATION STORAGE
Information
Patent Application
Disk drive and control method thereof
Publication number
20070247744
Publication date
Oct 25, 2007
Noriaki Satoh
G11 - INFORMATION STORAGE
Information
Patent Application
Recording disk drive with reduced noise thermal flyheight control
Publication number
20070210070
Publication date
Sep 13, 2007
John Contreras
G11 - INFORMATION STORAGE
Information
Patent Application
Method of controlling a recording current, and magnetic disk device
Publication number
20060056091
Publication date
Mar 16, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Yumi Nagano
G11 - INFORMATION STORAGE
Information
Patent Application
Method for controlling write current to a write head during data wr...
Publication number
20020141094
Publication date
Oct 3, 2002
International Business Machines Corporation
Hiroaki Suzuki
G11 - INFORMATION STORAGE