Kazunori Chida

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Mito, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of optical fiber preforms
- Patent number 4,797,143
- Issue date Jan 10, 1989
- Nippon Telegraph & Telephone Public Corporation
- Kazunori Chida
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for producing optical fiber preform
- Patent number 4,627,866
- Issue date Dec 9, 1986
- Sumitomo Electric Industries Ltd.
- Hiroo Kanamori
- C03 - GLASS MINERAL OR SLAG WOOL