Toshio Danzuka

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Cary, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Silica glass article and manufacturing process therefor
- Patent number 6,709,997
- Issue date Mar 23, 2004
- Sumitomo Electric Industries, Ltd.
- Akira Urano
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Silica glass article and manufacturing process therefor
- Patent number 6,333,283
- Issue date Dec 25, 2001
- Sumitomo Electric Industries, Ltd.
- Akira Urano
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Silica glass article and manufacturing process therefor
- Publication number 20020061810
- Publication date May 23, 2002
- Sumitomo Electric Industries, Ltd.
- Akira Urano
- C03 - GLASS MINERAL OR SLAG WOOL