Jun-ichi Sugiyama

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Processes for producing carbonic ester and producing polycarbonate
- Patent number 8,022,241
- Issue date Sep 20, 2011
- National Institute of Advanced Industrial Science and Technology
- Masaya Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for producing carbonic ester and producing polycarbonate
- Patent number 7,598,411
- Issue date Oct 6, 2009
- National Institute of Advanced Industrial Science and Technology
- Masaya Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst for polycarbonate production and process for producing pol...
- Patent number 7,390,868
- Issue date Jun 24, 2008
- National Institute of Advanced Industrial Science and Technology
- Masaya Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Catalyst for polycarbonate production and process for producing pol...
- Publication number 20070043199
- Publication date Feb 22, 2007
- Idemitsu Kosan Co., Ltd.
- Masaya Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Processes for producing carbonic ester and producing polycarbonate
- Publication number 20050234259
- Publication date Oct 20, 2005
- NATIONAL INSTIT OF ADVANCE INDUST SCIENCE AND TECH
- Masaya Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...