Nobuya Okumura

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Ehime, JP

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Patents Grantslast 30 patents

Information Patent Grant
Protection from ultraviolet light by use of novel ultraviolet absorber
- Patent number 4,446,262
- Issue date May 1, 1984
- Teijin Limited
- Nobuya Okumura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyesters
- Patent number 4,133,801
- Issue date Jan 9, 1979
- Teijin Limited
- Yasuo Morimatsu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of polyesters
- Patent number 4,131,601
- Issue date Dec 26, 1978
- Teijin Limited
- Satoshi Hashimoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...