Koji Takenaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fire retardant polycarbonate resin composition
- Patent number 4,155,949
- Issue date May 22, 1979
- Mitsubishi Gas Chemical Company, Inc.
- Seiichi Kamiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...