Yasumasa Yamakoshi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dried porous crumbs of hydrogenated block copolymer
- Patent number 7,579,385
- Issue date Aug 25, 2009
- Asahi Kasei Kabushiki Kaisha
- Yasumasa Yamakoshi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for hydrogenation of polymer
- Patent number 6,815,509
- Issue date Nov 9, 2004
- Asahi Kasei Kabushiki Kaisha
- Koichi Miyamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for removing hydrocarbon solvent from solution of hydrogenat...
- Patent number 6,451,964
- Issue date Sep 17, 2002
- Asahi Kasei Kabushiki Kaisha
- Atsuo Hakamaya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method for hydrogenation of polymer
- Publication number 20020107423
- Publication date Aug 8, 2002
- Koichi Miyamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...