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Itami, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Hydrodynamic bearing assembly
Patent number
7,360,950
Issue date
Apr 22, 2008
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Porous silicon nitride ceramics and method for producing the same
Patent number
7,041,366
Issue date
May 9, 2006
Sumitomo Electric Industries, Ltd.
Michimasa Miyanaga
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hydrodynamic bearing assembly and spindle motor having the same
Patent number
7,033,078
Issue date
Apr 25, 2006
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Dynamic-pressure bearing and spindle motor comprising the same
Patent number
6,870,289
Issue date
Mar 22, 2005
Sumitomo Electric Industries, Ltd.
Makoto Otsuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Porous ceramics and method of preparing the same as well as microst...
Patent number
6,800,360
Issue date
Oct 5, 2004
Sumitomo Electric Industries, Ltd.
Michimasa Miyanaga
B24 - GRINDING POLISHING
Information
Patent Grant
Spindle motor and hard disc drive incorporating the same
Patent number
6,771,459
Issue date
Aug 3, 2004
Sumitomo Electric Industries, Ltd.
Osamu Komura
G11 - INFORMATION STORAGE
Information
Patent Grant
Hydrodynamic bearing assembly and spindle motor having the same
Patent number
6,749,339
Issue date
Jun 15, 2004
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Dynamic pressure bearing with improved starting characteristics
Patent number
6,702,464
Issue date
Mar 9, 2004
Sumitomo Electric Industries, Ltd.
Hisao Takeuchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Bearing structures, spindle motor, and hard disk drive
Patent number
6,686,673
Issue date
Feb 3, 2004
Sumitomo Electric Industries, Ltd.
Osamu Komura
G11 - INFORMATION STORAGE
Information
Patent Grant
Spindle motor
Patent number
6,608,415
Issue date
Aug 19, 2003
Sumitomo Electric Industries, Ltd.
Osamu Komura
G11 - INFORMATION STORAGE
Information
Patent Grant
Hydrodynamic bearing and spindle motor
Patent number
6,552,455
Issue date
Apr 22, 2003
Sumitomo Electric Industries, Ltd.
Makoto Otsuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Hydrodynamic gas bearing structure
Patent number
6,428,211
Issue date
Aug 6, 2002
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Spindle motor
Patent number
6,417,590
Issue date
Jul 9, 2002
Sumitomo Electric Industries, Ltd.
Osamu Komura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Spindle motor and complex bearing assembly for use with the spindle...
Patent number
6,307,295
Issue date
Oct 23, 2001
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Hydrodynamic gas bearing structure and optical deflection scanner c...
Patent number
6,123,460
Issue date
Sep 26, 2000
Sumitomo Electric Industries, Ltd.
Hisao Takeuchi
G02 - OPTICS
Information
Patent Grant
Dynamic pressure pneumatic bearing structure and method of manufact...
Patent number
6,082,900
Issue date
Jul 4, 2000
Sumitomo Electric Industries, Ltd.
Hisao Takeuchi
G02 - OPTICS
Information
Patent Grant
Dynamic pressure gas bearing structure and method of manufacturing...
Patent number
5,944,427
Issue date
Aug 31, 1999
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Silicon nitride ceramic sliding material and process for producing...
Patent number
5,922,629
Issue date
Jul 13, 1999
Sumitomo Electric Industries, Ltd.
Jin-Joo Park
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Dynamic-pressure gas bearing structure and optical deflection scann...
Patent number
5,835,124
Issue date
Nov 10, 1998
Canon Kabushiki Kaisha
Taku Fukita
G02 - OPTICS
Information
Patent Grant
Slide member and method of manufacturing the same
Patent number
5,776,600
Issue date
Jul 7, 1998
Sumitomo Electric Industries, Ltd.
Tetsuya Katayama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Dynamic-pressure gas bearing structure and optical deflection scann...
Patent number
5,731,831
Issue date
Mar 24, 1998
Canon Kabushiki Kaisha
Kaoru Murabe
G02 - OPTICS
Information
Patent Grant
Composite bearing structure
Patent number
5,675,201
Issue date
Oct 7, 1997
Sumitomo Electric Industries, Ltd.
Osamu Komura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Dynamic pressure gas bearing structure
Patent number
5,628,567
Issue date
May 13, 1997
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method of producing silicon nitride ceramic component
Patent number
5,599,493
Issue date
Feb 4, 1997
Sumitomo Electric Industries, Ltd.
Yasushi Ito
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Slide member and method of manufacturing the same
Patent number
5,543,371
Issue date
Aug 6, 1996
Sumitomo Electric Industries, Ltd.
Tetsuya Katayama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of molding silicon nitride ceramics
Patent number
5,385,701
Issue date
Jan 31, 1995
Sumitomo Electric Industries, Ltd.
Tomoyuki Awazu
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Silicon nitride composite sintered body and process for producing t...
Patent number
5,384,292
Issue date
Jan 24, 1995
Sumitomo Electric Industries, Ltd.
Jin-Joo Matsui
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Composite bearing structure
Patent number
5,280,208
Issue date
Jan 18, 1994
Sumitomo Electric Industries, Ltd.
Osamu Komura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
ProducingSi.sub.3 N.sub.4 composite by sheeting a mixture of Si.sub...
Patent number
5,141,579
Issue date
Aug 25, 1992
Sumitomo Electric Industries, Ltd.
Tatsuji Matsui
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method of sintering ceramics and metal dispersed reinforced ceramic...
Patent number
4,965,044
Issue date
Oct 23, 1990
I. Sumitomo Electric Industries, Ltd.
Yoshinari Miyamoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Hydrodynamic bearing assembly
Publication number
20080170815
Publication date
Jul 17, 2008
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
G02 - OPTICS
Information
Patent Application
Htdrodynamic bearing assembly and spindle motor having the same
Publication number
20060072864
Publication date
Apr 6, 2006
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
G02 - OPTICS
Information
Patent Application
Htdrodynamic bearing assembly and spindle motor having the same
Publication number
20040213488
Publication date
Oct 28, 2004
Sumitomo Electric Industries, Ltd.
Kaoru Murabe
G02 - OPTICS
Information
Patent Application
Dynamic pressure bearing with improved starting characteristics
Publication number
20040156569
Publication date
Aug 12, 2004
Sumitomo Electric Industries, Ltd.
Hisao Takeuchi
G02 - OPTICS
Information
Patent Application
Porous ceramics and method for preparation thereof, and microstrip...
Publication number
20040076806
Publication date
Apr 22, 2004
Michimasa Miyanaga
B24 - GRINDING POLISHING
Information
Patent Application
Porous silicon nitride ceramics and method for producing the same
Publication number
20040013861
Publication date
Jan 22, 2004
Michimasa Miyanaga
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Spindle motor
Publication number
20020180289
Publication date
Dec 5, 2002
Sumitomo Electric Industries, Ltd.
Osamu Komura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...