Seiji Oikawa

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Patents Grantslast 30 patents

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Polyamic acid, polyimide film and liquid crystal aligning film and...
- Patent number 5,807,961
- Issue date Sep 15, 1998
- Chisso Corporation
- Toshiya Sawai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Diamino compounds and methods for preparing them
- Patent number 5,663,440
- Issue date Sep 2, 1997
- Chisso Corporation
- Toshiya Sawai
- C07 - ORGANIC CHEMISTRY