Takashi Usami

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat-resistant co-polyester from 9,9-bis(4-hydroxy-phenyl)fluorene
- Patent number 4,810,771
- Issue date Mar 7, 1989
- Nippon Steel Corporation
- Takero Teramoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...