Tetsutarou Katayama

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber
- Patent number 7,212,717
- Issue date May 1, 2007
- Sumitomo Electric Industries, Ltd.
- Tatsuhiko Saito
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-body-producing method and optical glass body and optical fiber
- Patent number 7,130,513
- Issue date Oct 31, 2006
- Sumitomo Electric Industries, Ltd.
- Tetsuya Haruna
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber
- Publication number 20060159410
- Publication date Jul 20, 2006
- Tatsuhiko Saito
- G02 - OPTICS
Information Patent Application
Glass-body-producing method and optical glass body and optical fiber
- Publication number 20050276555
- Publication date Dec 15, 2005
- Tetsuya Haruna
- C03 - GLASS MINERAL OR SLAG WOOL