Masayuki Kiya

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber coupler and optical fiber for optical fiber coupler
- Patent number 6,563,989
- Issue date May 13, 2003
- Sumitomo Electric Industries, Ltd.
- Shinji Ishikawa
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber coupler and optical fiber for optical fiber coupler
- Publication number 20020041737
- Publication date Apr 11, 2002
- Shinji Ishikawa
- C03 - GLASS MINERAL OR SLAG WOOL