Yumi Okuyama

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Anpachi-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Glass ceramic composition
- Patent number 6,939,819
- Issue date Sep 6, 2005
- Asahi Glass Company, Limited
- Hiroshi Usui
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Glass ceramic composition
- Publication number 20030228968
- Publication date Dec 11, 2003
- ASAHI GLASS COMPANY LIMITED
- Hiroshi Usui
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES