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Kenji Matsunuma
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Itami, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electromagnetic actuator and valve-open-close mechanism
Patent number
6,566,990
Issue date
May 20, 2003
Itami Works of Sumitomo Electric Industries, Ltd.
Hitoshi Oyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Electromagnetic actuator
Patent number
6,380,832
Issue date
Apr 30, 2002
Itami Works of Sumitomo Electric Industries, Ltd.
Hitoshi Oyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Valve-open-close mechanism
Patent number
6,371,063
Issue date
Apr 16, 2002
Sumitomo Electric Industries, Ltd.
Hitoshi Oyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Electromagnetic actuator and valve-open-close mechanism
Patent number
6,367,433
Issue date
Apr 9, 2002
Itami Works of Sumitomo Electric Industries, Ltd.
Hitoshi Oyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Exhaust gas purifier and operating method thereof
Patent number
6,120,583
Issue date
Sep 19, 2000
Sumitomo Electric Industries, Ltd.
Hidetoshi Saito
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Particulate trap for a diesel engine
Patent number
6,013,118
Issue date
Jan 11, 2000
Sumitomo Electric Industries, Ltd.
Kenji Matsunuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Particulate trap for diesel engine
Patent number
5,782,941
Issue date
Jul 21, 1998
Sumitomo Electric Industries, Ltd.
Kenji Matsunuma
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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
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
Combination of adjusting shim and cam
Patent number
5,647,313
Issue date
Jul 15, 1997
Sumitomo Electric Industries, Ltd.
Hiromu Izumida
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Facility for grinding silicon nitride ceramic workpiece
Patent number
5,605,494
Issue date
Feb 25, 1997
Sumitomo Electric Industries, Ltd.
Takao Nishioka
B24 - GRINDING POLISHING
Information
Patent Grant
Method of machining silicon nitride ceramics and silicon nitride ce...
Patent number
5,584,745
Issue date
Dec 17, 1996
Sumitomo Electric Industries, Ltd.
Takao Nishioka
B24 - GRINDING POLISHING
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
Silicon nitride sintered body
Patent number
5,502,011
Issue date
Mar 26, 1996
Sumitomo Electric Industries, Ltd.
Takehisa Yamamoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Ceramic adjusting shim
Patent number
5,372,099
Issue date
Dec 13, 1994
Sumitomo Electric Industries, Ltd.
Kenji Matsunuma
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Adjusting shim
Patent number
5,358,797
Issue date
Oct 25, 1994
Sumitomo Electric Industries, Ltd.
Kenji Matsunuma
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Sintered silicon nitride bodies suitable for use as high impact mat...
Patent number
5,346,869
Issue date
Sep 13, 1994
Sumitomo Electric Industries, Ltd.
Takao Nishioka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
High strength silicon nitride sintered body and process for produci...
Patent number
5,328,876
Issue date
Jul 12, 1994
Sumitomo Electric Industries, Ltd.
Takao Nishioka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of machining silicon nitride ceramics and silicon nitride ce...
Patent number
5,297,365
Issue date
Mar 29, 1994
Sumitomo Electric Industries, Ltd.
Takao Nishioka
B24 - GRINDING POLISHING
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
Silicon nitride sintered body and process for producing the same
Patent number
5,275,772
Issue date
Jan 4, 1994
Sumitomo Electric Industries, Ltd.
Takehisa Yamamoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
High strength silicon nitride sintered body and process for produci...
Patent number
5,234,642
Issue date
Aug 10, 1993
Sumitomo Electric Industries, Ltd.
Takao Nishioka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for production of sintered silicon nitride made article
Patent number
5,225,127
Issue date
Jul 6, 1993
Sumitomo Electric Industries, Ltd.
Takao Nishioka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicon nitride sintered body and process for producing the same
Patent number
5,204,297
Issue date
Apr 20, 1993
Sumitomo Electric Industries, Ltd.
Takehisa Yamamoto
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Silicon nitride sintered body and process for producing the same
Patent number
5,173,458
Issue date
Dec 22, 1992
Sumitomo Electric Industries, Ltd.
Takao Nishioka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Electromagnetic actuator and valve-open-close mechanism
Publication number
20020053966
Publication date
May 9, 2002
Itami Works of Sumitomo Electric Industries, Ltd.
Hitoshi Oyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Electromagnetic actuator
Publication number
20010007440
Publication date
Jul 12, 2001
Hitoshi Oyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Valve-open-close mechanism
Publication number
20010006047
Publication date
Jul 5, 2001
Hitoshi Oyama
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Electromagnetic actuator and valve-open-close mechanism
Publication number
20010003277
Publication date
Jun 14, 2001
Itami Works of Sumitomo Electric Industries, Ltd.
Hitoshi Oyama
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC