Shigeki Endo

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing porous preforms for optical fibers
- Patent number 4,713,107
- Issue date Dec 15, 1987
- Sumitomo Electric Industries, Ltd.
- Masaaki Yoshida
- C03 - GLASS MINERAL OR SLAG WOOL