Akira Yamakawa

Person

Hyogo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for molding ceramics
- Patent number 6,458,298
- Issue date Oct 1, 2002
- Sumitomo Electric Industries, Ltd.
- Tomoyuki Awazu
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Metallized silicon nitride ceramic and fabricating process thereof...
- Patent number 6,447,923
- Issue date Sep 10, 2002
- Sumitomo Electric Industries, Ltd.
- Akira Yamakawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Si3N4 ceramic, Si-base composition for production thereof and proce...
- Patent number 6,410,468
- Issue date Jun 25, 2002
- Sumitomo Electric Industries, Ltd.
- Seiji Nakahata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of manufacturing a sliding component
- Patent number 6,315,843
- Issue date Nov 13, 2001
- Sumitomo Electric Industries, Ltd.
- Takashi Matsuura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Si3N4 ceramic, Si-base composition for production thereof and proce...
- Patent number 6,284,690
- Issue date Sep 4, 2001
- Sumitomo Electric Industries, Ltd.
- Seiji Nakahata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride sinter having high thermal conductivity and process...
- Patent number 6,143,677
- Issue date Nov 7, 2000
- Sumitomo Electric Industries, Ltd.
- Michimasa Miyanaga
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride sintered body, method of preparing the same and nit...
- Patent number 6,001,759
- Issue date Dec 14, 1999
- Sumitomo Electric Industries, Ltd.
- Michimasa Miyanaga
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for producing silicon nitride sliding member
- Patent number 5,961,907
- Issue date Oct 5, 1999
- Sumitomo Electric Industries, Ltd.
- Masamichi Yamagiwa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Joint body of aluminum and silicon nitride and method of preparing...
- Patent number 5,904,993
- Issue date May 18, 1999
- Sumitomo Electric Industries, Ltd.
- Hisao Takeuchi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for producing ceramic sintered body
- Patent number 5,879,078
- Issue date Mar 9, 1999
- Sumitomo Electric Industries, Ltd.
- Yasushi Tsuzuki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Porous ceramic film and process for producing the same
- Patent number 5,858,523
- Issue date Jan 12, 1999
- Sumitomo Electric Industries, Ltd.
- Chihiro Kawai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of preparing silicon nitride porous body
- Patent number 5,846,460
- Issue date Dec 8, 1998
- Sumitomo Electric Industries, Ltd.
- Takahiro Matsuura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the production of silicon nitride sintered body
- Patent number 5,827,472
- Issue date Oct 27, 1998
- Sumitomo Electric Industries, Ltd.
- Masashi Yoshimura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic sliding component
- Patent number 5,809,842
- Issue date Sep 22, 1998
- Sumitomo Electric Industries, Ltd.
- Masamichi Yamagiwa
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Sliding component and production method thereof
- Patent number 5,783,314
- Issue date Jul 21, 1998
- Sumitomo Electric Industries, Ltd.
- Masamichi Yamagiwa
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
High-strength porous silicon nitride body and process for producing...
- Patent number 5,780,374
- Issue date Jul 14, 1998
- Sumitomo Electric Industries, Ltd.
- Chihiro Kawai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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
Ceramic sliding component
- Patent number 5,770,322
- Issue date Jun 23, 1998
- Sumitomo Electric Industries, Ltd.
- Takao Nishioka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride ceramic and process for forming the same
- Patent number 5,767,026
- Issue date Jun 16, 1998
- Agency of Industrial Science and Technology
- Naoki Kondoh
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic porous bodies and method of producing the same
- Patent number 5,759,460
- Issue date Jun 2, 1998
- Sumitomo Electric Industries, Ltd.
- Koichi Niihara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sintered body of silicon nitride and method of producing the same
- Patent number 5,756,411
- Issue date May 26, 1998
- Sumitomo Electric Industries, Ltd.
- Seiji Nakahata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic porous bodies and method of producing the same
- Patent number 5,750,449
- Issue date May 12, 1998
- Sumitomo Electric Industries, Ltd.
- Koichi Niihara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Manufacturing method for silicon nitride-based sintered body
- Patent number 5,720,917
- Issue date Feb 24, 1998
- Sumitomo Electric Industries, Ltd.
- Takashi Matsuura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride powder and method for producing the same
- Patent number 5,716,670
- Issue date Feb 10, 1998
- Sumitomo Electric Industries, Ltd.
- Jin-Joo Park
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of producing a silicon nitride based sintered body
- Patent number 5,698,156
- Issue date Dec 16, 1997
- Sumitomo Electric Industries, Ltd.
- Takashi Matsuura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic porous body and method for preparing the same
- Patent number 5,696,042
- Issue date Dec 9, 1997
- Sumitomo Electric Industries, Ltd.
- Takahiro Matsuura
- 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
Silicon nitride based sintered body
- Patent number 5,622,905
- Issue date Apr 22, 1997
- Sumitomo Electric Industries, Ltd.
- Takashi Matsuura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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

Patents Applicationslast 30 patents

Information Patent Application
Si3N4 ceramic, Si-base composition for production thereof and proce...
- Publication number 20020002107
- Publication date Jan 3, 2002
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Seiji Nakahata
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Akira Yamakawa

Person

Patents Grantslast 30 patents

Process for molding ceramics

Metallized silicon nitride ceramic and fabricating process thereof...

Si3N4 ceramic, Si-base composition for production thereof and proce...

Method of manufacturing a sliding component

Si3N4 ceramic, Si-base composition for production thereof and proce...

Silicon nitride sinter having high thermal conductivity and process...

Silicon nitride sintered body, method of preparing the same and nit...

Process for producing silicon nitride sliding member

Joint body of aluminum and silicon nitride and method of preparing...

Device for producing ceramic sintered body

Porous ceramic film and process for producing the same

Method of preparing silicon nitride porous body

Process for the production of silicon nitride sintered body

Ceramic sliding component

Sliding component and production method thereof

High-strength porous silicon nitride body and process for producing...

Slide member and method of manufacturing the same

Ceramic sliding component

Silicon nitride ceramic and process for forming the same

Ceramic porous bodies and method of producing the same

Sintered body of silicon nitride and method of producing the same

Ceramic porous bodies and method of producing the same

Manufacturing method for silicon nitride-based sintered body

Silicon nitride powder and method for producing the same

Method of producing a silicon nitride based sintered body

Ceramic porous body and method for preparing the same

Composite bearing structure

Combination of adjusting shim and cam

Silicon nitride based sintered body

Facility for grinding silicon nitride ceramic workpiece

Patents Applicationslast 30 patents

Si3N4 ceramic, Si-base composition for production thereof and proce...