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Keiko Watanabe
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Tsuchiura, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Flexible ramp in a hard disk drive
Patent number
8,730,620
Issue date
May 20, 2014
HGST Netherlands B.V.
Teruhiro Nakamiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device
Patent number
8,537,500
Issue date
Sep 17, 2013
HGST Netherlands B.V.
Teruhiro Nakamiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device and head stack assembly
Patent number
8,094,412
Issue date
Jan 10, 2012
Hitachi Global Storage Technologies, Netherlands B.V.
Noritaka Otake
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive and voice coil motor
Patent number
8,064,171
Issue date
Nov 22, 2011
Hitachi Global Storage Technologies, Netherlands B.V.
Toshihiko Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device and suspension having multiple arm portions of...
Patent number
7,460,341
Issue date
Dec 2, 2008
Hitachi Global Storage Technologies Netherlands B.V.
Toshihiko Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotary disk type storage device
Patent number
6,876,513
Issue date
Apr 5, 2005
Hitachi, Ltd.
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for assembling disc apparatus
Patent number
6,839,956
Issue date
Jan 11, 2005
Hitachi, Ltd.
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disc apparatus having actuator for head positioning mechanism
Patent number
6,636,385
Issue date
Oct 21, 2003
Hitachi, Ltd.
Kei Yasuna
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Information
Patent Grant
Information recording disk apparatus
Patent number
6,597,532
Issue date
Jul 22, 2003
Hitachi, Ltd.
Kazuaki Usui
G11 - INFORMATION STORAGE
Information
Patent Grant
Retraction control method and magnetic disk apparatus
Patent number
6,490,116
Issue date
Dec 3, 2002
Hitachi, Ltd.
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus
Patent number
6,462,910
Issue date
Oct 8, 2002
Hitachi, Ltd.
Toshihiko Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic slider head and method of producing the same
Patent number
6,373,659
Issue date
Apr 16, 2002
Hitachi, Ltd.
Tetsuya Hamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device
Patent number
6,307,716
Issue date
Oct 23, 2001
Hitachi, Ltd.
Tetsuya Hamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Ramp load type magnetic disk unit
Patent number
6,226,155
Issue date
May 1, 2001
Hitachi, Ltd.
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head slider and method of production thereof
Patent number
6,122,148
Issue date
Sep 19, 2000
Hitachi, Ltd.
Tetsuya Hamaguchi
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Information
Patent Grant
Magnetic head support device for magnetic disc recording device
Patent number
6,069,774
Issue date
May 30, 2000
Hitachi, Ltd.
Toshihiro Arisaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus
Patent number
5,999,369
Issue date
Dec 7, 1999
Hitachi, Ltd.
Toshihiko Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head support device for magnetic disc recording device
Patent number
5,930,082
Issue date
Jul 27, 1999
Hitachi, Ltd.
Toshihiro Arisaka
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Flow Rate Control Valve and Mass Flow Controller Using The Same
Publication number
20150369378
Publication date
Dec 24, 2015
Hitachi Metals, Ltd.
Takahiro UMEYAMA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
FLEXIBLE RAMP IN A HARD DISK DRIVE
Publication number
20140126084
Publication date
May 8, 2014
HGST NETHERLANDS B.V.
Teruhiro NAKAMIYA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC DISK DEVICE
Publication number
20120170155
Publication date
Jul 5, 2012
Teruhiro Nakamiya
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk drive and voice coil motor
Publication number
20090190266
Publication date
Jul 30, 2009
Toshihiko T.S Shimizu
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk device and head stack assembly
Publication number
20090147406
Publication date
Jun 11, 2009
Noritaka Otake
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk drive
Publication number
20080112299
Publication date
May 15, 2008
Hitachi Global Storage Technologies Inc.
Toshihiko Shimizu
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk device and suspension
Publication number
20060028768
Publication date
Feb 9, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Toshihiko Shimizu
G11 - INFORMATION STORAGE
Information
Patent Application
Rotary disk type storage device
Publication number
20030081348
Publication date
May 1, 2003
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Method for assembling disc apparatus
Publication number
20020059718
Publication date
May 23, 2002
Keiko Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disc apparatus and mobile information device
Publication number
20010015876
Publication date
Aug 23, 2001
Kei Yasuna
G11 - INFORMATION STORAGE