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Hiroshi Yoshikawa
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Kitasaku-gun, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Fluid dynamic pressure bearing for spindle motors and storage disk...
Patent number
7,764,463
Issue date
Jul 27, 2010
Minebea Co., Ltd.
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and device for forming a dynamic pressure-generating groove...
Patent number
7,160,431
Issue date
Jan 9, 2007
Minebea Co., Ltd.
Hiroshi Yoshikawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Spindle motor
Patent number
6,826,010
Issue date
Nov 30, 2004
Minebea Co., Ltd.
Hiroshi Yoshikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Spindle motor
Patent number
6,794,774
Issue date
Sep 21, 2004
Minebea Kabushiki Kaisha
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor
Patent number
6,734,591
Issue date
May 11, 2004
Minebea Kabushiki Kaisha
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor
Patent number
6,563,243
Issue date
May 13, 2003
Minebea Kabushiki Kaisha
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor
Patent number
6,512,316
Issue date
Jan 28, 2003
Minebea Kabushiki Kaisha
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of manufacturing casing base for hard disc drive device
Patent number
5,649,442
Issue date
Jul 22, 1997
Minebea Kabushiki-Kaisha
Hiroshi Yoshikawa
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Spindle motor for a hard disk drive
Publication number
20090102300
Publication date
Apr 23, 2009
Thilo Rehm
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Fluid Dynamic Pressure Bearing, Spindle Motor and Storage Disk Driv...
Publication number
20080030895
Publication date
Feb 7, 2008
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Application
Control device for fuel cell vehicle
Publication number
20070088468
Publication date
Apr 19, 2007
Honda Motor Co., Ltd.
Asao Uenodai
B60 - VEHICLES IN GENERAL
Information
Patent Application
Method and device for forming a dynamic pressure-generating groove...
Publication number
20070023279
Publication date
Feb 1, 2007
MINEBEA CO., LTD.
Hiroshi Yoshikawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method and device for forming a dynamic pressure-generating groove...
Publication number
20040094430
Publication date
May 20, 2004
MINEBEA CO., LTD.
Hiroshi Yoshikawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Spindle motor
Publication number
20030155826
Publication date
Aug 21, 2003
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Application
Spindle motor
Publication number
20030094870
Publication date
May 22, 2003
MINEBEA KABUSHIKI-KAISHA
Rikuro Obara
G11 - INFORMATION STORAGE
Information
Patent Application
Spindle motor
Publication number
20020047394
Publication date
Apr 25, 2002
MINEBEA KABUSHIKI-KAISHA
Rikuro Obara
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Spindle motor
Publication number
20020008431
Publication date
Jan 24, 2002
MINEBEA KABUSHIKI-KAISHA
Rikuro Obara
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Spindle motor
Publication number
20020006012
Publication date
Jan 17, 2002
MINEBEA CO., LTD.
Hiroshi Yoshikawa
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Spindle motor
Publication number
20010022478
Publication date
Sep 20, 2001
MINEBEA KABUSHIKI-KAISHA
Rikuro Obara
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...