Hideo Kakuzen

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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 5,364,428
- Issue date Nov 15, 1994
- 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 5,203,899
- Issue date Apr 20, 1993
- 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 5,145,507
- Issue date Sep 8, 1992
- Sumitomo Electric Industries, Ltd.
- Michihisa Kyoto
- C03 - GLASS MINERAL OR SLAG WOOL
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
Information Patent Grant
Process for producing glass member
- Patent number 4,225,330
- Issue date Sep 30, 1980
- Sumitomo Electric Industries, Ltd.
- Hideo Kakuzen
- C03 - GLASS MINERAL OR SLAG WOOL