Hiroshi Takamizawa

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for making optical fiber
- Patent number 6,851,282
- Issue date Feb 8, 2005
- Sumitomo Electric Industries, Ltd.
- Katsuya Nagayama
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for making optical fiber
- Publication number 20020059816
- Publication date May 23, 2002
- Katsuya Nagayama
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Method of making optical fiber
- Publication number 20010010162
- Publication date Aug 2, 2001
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Kazuya Kuwahara
- C03 - GLASS MINERAL OR SLAG WOOL