Yasuhiro Yoshikawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing aryloxy-substituted phosphazene derivatives
- Patent number 5,075,453
- Issue date Dec 24, 1991
- Nippon Soda Co., Ltd.
- Shinichiro Ueyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing organophosphazene polymers with chlorophospha...
- Patent number 4,880,905
- Issue date Nov 14, 1989
- Nippon Soda Co., Ltd.
- Shinichiro Ueyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...