Hiroshi Kawauchi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing glass preform for optical fiber
- Patent number 4,655,808
- Issue date Apr 7, 1987
- Sumitomo Electric Industries, Ltd.
- Michihisa Kyoto
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for producing glass preform for optical fiber
- Patent number 4,610,709
- Issue date Sep 9, 1986
- Sumitomo Electric Industries, Ltd.
- Hiroshi Kawauchi
- C03 - GLASS MINERAL OR SLAG WOOL