Yasushi Nakazawa

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Fukushima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyarylene sulfide and process for producing the same
- Patent number 8,138,302
- Issue date Mar 20, 2012
- Kureha Corporation
- Hiroyuki Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Production process and washing method of poly(arylene sulfide), and...
- Patent number 7,632,915
- Issue date Dec 15, 2009
- Kureha Corporation
- Hiroyuki Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Production process of poly(arylene sulfide)
- Patent number 7,517,946
- Issue date Apr 14, 2009
- Kureha Corporation
- Hiroyuki Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Process for producing polyarylene sulfide
- Publication number 20060089486
- Publication date Apr 27, 2006
- Hiroyuki Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for producing and method of cleaning polyarylene sulfide, a...
- Publication number 20060086374
- Publication date Apr 27, 2006
- Hiroyuki Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyarylene sulfide and process for producing the same
- Publication number 20060084785
- Publication date Apr 20, 2006
- Hiroyuki Sato
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...