Tetsuya Asahi

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Patents Grantslast 30 patents

Information Patent Grant
Poly(arylene thioether) copolymers and process for producing thereof
- Patent number 5,115,091
- Issue date May 19, 1992
- Tosoh Corporation
- Tomoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Poly(arylene cyano-thioether) copolymer and preparation thereof
- Patent number 4,980,454
- Issue date Dec 25, 1990
- Tosoh Corporation
- Tomoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Poly(cyano arylene sulfide/sulfone)copolymer and preparation thereof
- Patent number 4,973,663
- Issue date Nov 27, 1990
- Tosoh Corporation
- Tomoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycyanoaryl thioether and preparation thereof
- Patent number 4,894,434
- Issue date Jan 16, 1990
- Tosoh Corporation
- Tetsuya Asahi
- C07 - ORGANIC CHEMISTRY