Kanji Arai

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing silicon nitride filter
- Patent number 6,849,213
- Issue date Feb 1, 2005
- Asahi Glass Company, Limited
- Naomichi Miyakawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride porous body and its production process
- Patent number 6,593,261
- Issue date Jul 15, 2003
- Asahi Glass Company, Limited
- Nobuhiro Shinohara
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for production of silicon nitride filter
- Patent number 6,565,797
- Issue date May 20, 2003
- Asahi Glass Company, Limited
- Naomichi Miyakawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
OXIDE CERAMICS SINTERED COMPACT AND METHOD OF MANUFACTURING THE SAME
- Publication number 20130095994
- Publication date Apr 18, 2013
- Asahi Glass Company, Limited
- Koji Kawahara
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Silicon nitride filter and method for its production
- Publication number 20030006518
- Publication date Jan 9, 2003
- ASAHI GLASS COMPANY, LIMITED
- Naomichi Miyakawa
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Silicon nitride filter and method for its production
- Publication number 20020053542
- Publication date May 9, 2002
- ASAHI GLASS COMPANY, LIMITED
- Naomichi Miyakawa
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Silicon nitride porous body and its production process
- Publication number 20010036531
- Publication date Nov 1, 2001
- ASAHI GLASS COMPANY, LIMITED
- Nobuhiro Shinohara
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL