Ryuji Kobayashi

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Urawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of fabricating optical fiber preforms
- Patent number 4,264,347
- Issue date Apr 28, 1981
- Dainichi-Nippon Cables; Ltd.
- Takeshi Shintani
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of producing an optical waveguide material
- Patent number 4,263,030
- Issue date Apr 21, 1981
- Mitsubishi Kinsoku Kabushiki Kaisha
- Ryuji Kobayashi
- C03 - GLASS MINERAL OR SLAG WOOL