Tsutomu Yokozawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing aromatic polymer
- Patent number 9,109,081
- Issue date Aug 18, 2015
- Sumitomo Chemical Company, Limited
- Tsutomu Yokozawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for production of block copolymer
- Patent number 8,349,997
- Issue date Jan 8, 2013
- Sumitomo Chemical Company, Limited
- Tsutomu Yokozawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for producing aromatic polymer
- Patent number 7,999,058
- Issue date Aug 16, 2011
- Sumitomo Chemical Company, Limited
- Tsutomu Yokozawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING AROMATIC POLYMER
- Publication number 20100168369
- Publication date Jul 1, 2010
- SUMITOMO CHEMICAL COMPANY, LIMITED
- Tsutomu Yokozawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PRODUCING AROMATIC POLYMER
- Publication number 20100144999
- Publication date Jun 10, 2010
- Sumitomo Chemical Company, Ltd.
- Tsutomu Yokozawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PRODUCTION OF BLOCK COPOLYMER
- Publication number 20100099823
- Publication date Apr 22, 2010
- SUMITOMO CHEMICAL COMPANY, LIMITED
- Tsutomu Yokozawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PRODUCING STRUCTURE WHEREIN AROMATIC POLYMER IS BONDED T...
- Publication number 20100069603
- Publication date Mar 18, 2010
- Sumitomo Chemical Company, Limited
- Kenta Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...