Naoki Norimatsu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for manufacturing preform for fluoride glass f...
- Patent number 4,925,475
- Issue date May 15, 1990
- Kokusai Denshin Denwa Kabushiki Kaisha
- Yoshinori Mimura
- C03 - GLASS MINERAL OR SLAG WOOL