Tohru Matsuoka

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Oita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Colored resin composition for water pipe and colored water pipe
- Patent number 6,448,312
- Issue date Sep 10, 2002
- High Tech Chem Co., Ltd.
- Kotaro Oshima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyethylene resin, and pipes and pipe joints using same
- Patent number 6,191,227
- Issue date Feb 20, 2001
- Japan Polyolefins Co., Ltd.
- Tohru Matsuoka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ethylene/polycyclic monomer copolymer, process for preparation ther...
- Patent number 5,049,633
- Issue date Sep 17, 1991
- Showa Denko K.K.
- Yasuaki Sasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Polyethylene resin, and pipes and pipe joints using same
- Publication number 20010000255
- Publication date Apr 12, 2001
- Tohru Matsuoka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...