Tetsuya Koyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum degassing apparatus and vacuum degassing method for molten g...
- Patent number 8,997,526
- Issue date Apr 7, 2015
- Asahi Glass Company, Limited
- Toru Nishikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Vacuum degassing apparatus and vacuum degassing method for molten g...
- Patent number 8,468,851
- Issue date Jun 25, 2013
- Asahi Glass Company, Limited
- Toru Nishikawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Vacuum degassing apparatus and vacuum degassing method for molten g...
- Patent number 8,347,654
- Issue date Jan 8, 2013
- Asahi Glass Company, Limited
- Toru Nishikawa
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
GLASS SHEET/FLUORORESIN LAMINATE
- Publication number 20150152004
- Publication date Jun 4, 2015
- ASAHI GLASS COMPANY, LIMITED
- Masahiro ITO
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
VACUUM DEGASSING APPARATUS AND VACUUM DEGASSING METHOD FOR MOLTEN G...
- Publication number 20130233023
- Publication date Sep 12, 2013
- Asahi Glass Company, Limited
- Toru Nishikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
VACUUM DEGASSING APPARATUS AND VACUUM DEGASSING METHOD FOR MOLTEN G...
- Publication number 20120324957
- Publication date Dec 27, 2012
- Asahi Glass Company, Limited
- Toru NISHIKAWA
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
VACUUM DEGASSING APPARATUS AND VACUUM DEGASSING METHOD FOR MOLTEN G...
- Publication number 20100319403
- Publication date Dec 23, 2010
- Asahi Glass Company, Limited
- Toru NISHIKAWA
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...