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Shigeo Obata
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Kobe, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Hydrodynamic bearing device, and spindle motor equipped with same
Patent number
8,033,732
Issue date
Oct 11, 2011
Panasonic Corporation
Takafumi Asada
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Spindle motor with a magnetic shield plate having an inclined annul...
Patent number
7,911,734
Issue date
Mar 22, 2011
Panasonic Corporation
Akihiko Wakitani
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk device
Patent number
7,787,214
Issue date
Aug 31, 2010
Panasonic Corporation
Kenichi Miyamori
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor and disk drive device using the same
Patent number
7,663,280
Issue date
Feb 16, 2010
Panasonic Corporation
Kenichi Miyamori
G11 - INFORMATION STORAGE
Information
Patent Grant
Thrust dynamic pressure bearing, spindle motor using thereof, and i...
Patent number
7,448,805
Issue date
Nov 11, 2008
Matsushita Electric Industrial Co., Ltd.
Hiromi Kita
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Information
Patent Grant
Hydrodynamic bearing device, method for manufacturing the same, spi...
Patent number
7,435,001
Issue date
Oct 14, 2008
Matsushita Electric Industrial Co., Ltd.
Naoshi Kainoh
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Spindle motor
Patent number
7,382,076
Issue date
Jun 3, 2008
Matsushita Electric Industrial Co., Ltd.
Kenichi Miyamori
G11 - INFORMATION STORAGE
Information
Patent Grant
Fluid bearing motor, and disk drive mounted with same
Patent number
7,317,271
Issue date
Jan 8, 2008
Matsushita Electric Industrial Co., Ltd.
Shigeo Obata
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor and disk drive unit
Patent number
7,265,939
Issue date
Sep 4, 2007
Matsushita Electric Industrial Co., Ltd.
Hideki Kuwajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor, information recording and reproducing apparatus havi...
Patent number
7,249,363
Issue date
Jul 24, 2007
Matsushita Electric Industrial Co., Ltd.
Hiromitsu Noda
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Information
Patent Grant
Thrust dynamic pressure bearing, spindle motor using the same, and...
Patent number
7,160,031
Issue date
Jan 9, 2007
Matsushita Electric Industrial Co., Ltd.
Hiromi Kita
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive
Patent number
7,110,221
Issue date
Sep 19, 2006
Matsushita Electric Industrial Co., Ltd.
Hideki Kuwajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Fluid bearing motor, and disk drive mounted with same
Patent number
7,084,536
Issue date
Aug 1, 2006
Matsushita Electric Industrial Co., Ltd.
Shigeo Obata
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotor assembly, information-recording/-reproducing device using the...
Patent number
6,965,492
Issue date
Nov 15, 2005
Matsushita Electric Industrial Co., Ltd.
Shigeo Obata
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Information
Patent Grant
Method of assembling rotor structure
Patent number
6,915,557
Issue date
Jul 12, 2005
Matsushita Electric Industrial Co., Ltd.
Shigeo Obata
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Information
Patent Grant
Disk drive with head supporting device
Patent number
6,826,018
Issue date
Nov 30, 2004
Matsushita Electric Industrial Co., Ltd.
Hideki Kuwajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotary head drum assembly with upper, lower and inner drums with cy...
Patent number
6,411,465
Issue date
Jun 25, 2002
Matsushita Electric Industial Co., Ltd.
Shigeo Obata
G11 - INFORMATION STORAGE
Information
Patent Grant
Hydrodynamic bearing spindle motor
Patent number
6,217,218
Issue date
Apr 17, 2001
Matsushita Electric Industrial Co., Ltd.
Hiroshi Inoue
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
DISK DEVICE
Publication number
20090083772
Publication date
Mar 26, 2009
Matsushita Electric Industrial Co., Ltd.
Kenichi Miyamori
G11 - INFORMATION STORAGE
Information
Patent Application
SPINDLE MOTOR AND DISK DRIVE DEVICE USING THE SAME
Publication number
20090072642
Publication date
Mar 19, 2009
Kenichi Miyamori
G11 - INFORMATION STORAGE
Information
Patent Application
HYDRODYNAMIC BEARING DEVICE, AND SPINDLE MOTOR EQUIPPED WITH SAME
Publication number
20090028474
Publication date
Jan 29, 2009
Takafumi ASADA
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Information
Patent Application
Disc driving motor and Information recording and reproducing apparatus
Publication number
20070217064
Publication date
Sep 20, 2007
Akihiko Wakitani
G11 - INFORMATION STORAGE
Information
Patent Application
Thrust dynamic pressure bearing, spindle motor using thereof, and i...
Publication number
20070189648
Publication date
Aug 16, 2007
Hiromi Kita
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Information
Patent Application
Hydrodynamic bearing device, method for manufacturing the same, spi...
Publication number
20070147715
Publication date
Jun 28, 2007
Naoshi Kainoh
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Fluid bearing motor, and disk drive mounted with same
Publication number
20060152097
Publication date
Jul 13, 2006
Matsushita Electric Industrial Co., Ltd.
Shigeo Obata
G11 - INFORMATION STORAGE
Information
Patent Application
Thrust dynamic pressure bearing, spindle motor using the same, and...
Publication number
20050141789
Publication date
Jun 30, 2005
Hiromi Kita
G11 - INFORMATION STORAGE
Information
Patent Application
Spindle motor
Publication number
20050086678
Publication date
Apr 21, 2005
Kenichi Miyamori
G11 - INFORMATION STORAGE
Information
Patent Application
Disk drive
Publication number
20040240116
Publication date
Dec 2, 2004
Hideki Kuwajima
G11 - INFORMATION STORAGE
Information
Patent Application
Disk drive
Publication number
20040233573
Publication date
Nov 25, 2004
Hideki Kuwajima
G11 - INFORMATION STORAGE
Information
Patent Application
Fluid bearing motor, and disk drive mounted with same
Publication number
20040189122
Publication date
Sep 30, 2004
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Shigeo Obata
G11 - INFORMATION STORAGE
Information
Patent Application
Spindle motor and disk drive unit
Publication number
20040190410
Publication date
Sep 30, 2004
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Hideki Kuwajima
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Information
Patent Application
Method of assembling rotor structure
Publication number
20030037429
Publication date
Feb 27, 2003
Shigeo Obata
G11 - INFORMATION STORAGE
Information
Patent Application
Spindle motor, information recording and reproducing apparatus havi...
Publication number
20030031114
Publication date
Feb 13, 2003
Hiromitsu Noda
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Rotor assembly, information-recording/-reproducing device using the...
Publication number
20020181151
Publication date
Dec 5, 2002
Shigeo Obata
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Disk drive
Publication number
20020145822
Publication date
Oct 10, 2002
Hideki Kuwajima
G11 - INFORMATION STORAGE
Information
Patent Application
Rotary head drum
Publication number
20020024772
Publication date
Feb 28, 2002
Shigeo Obata
G11 - INFORMATION STORAGE