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Masataka Nakajima
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for producing polymer
Patent number
7,214,745
Issue date
May 8, 2007
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing olefin/aromatic vinyl copolymer
Patent number
7,022,794
Issue date
Apr 4, 2006
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Transition metal catalyst component for polymerization, and method...
Patent number
6,891,004
Issue date
May 10, 2005
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cross-copolymerized olefin/aromatic vinyl compound/diene copolymer...
Patent number
6,878,779
Issue date
Apr 12, 2005
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cross-copolymerized olefin/aromatic vinyl compound/diene copolymer...
Patent number
6,803,422
Issue date
Oct 12, 2004
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cross-copolymerized olefin/aromatic vinyl/diene copolymer and proce...
Patent number
6,566,453
Issue date
May 20, 2003
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cross-copolymerized olefin/styrene/diene copolymer, process for the...
Patent number
6,559,234
Issue date
May 6, 2003
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resin composition
Patent number
6,410,649
Issue date
Jun 25, 2002
Denki Kagaku Kogyo Kabushiki Kaisha
Takeshi Oda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ethylene/aromatic vinyl copolymer and molded product thereof
Patent number
6,410,673
Issue date
Jun 25, 2002
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Transition metal compound as catalyst component for polymerization,...
Patent number
6,329,479
Issue date
Dec 11, 2001
Denki Kagaku Kogyo Kabushiki Kaisha
Toru Arai
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for producing polymer
Publication number
20050176901
Publication date
Aug 11, 2005
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Cross-copolymerized olefin/aromatic vinyl compound/diene copolymer...
Publication number
20040147681
Publication date
Jul 29, 2004
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for producing olefin/aromatic vinyl compound copolymer
Publication number
20040102588
Publication date
May 27, 2004
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Transition metal catalyst component for polymerization, and method...
Publication number
20030149201
Publication date
Aug 7, 2003
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Transition metal catalyst component for polymerization and process...
Publication number
20030096926
Publication date
May 22, 2003
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Cross-copolymerized olefin/aromatic vinyl compound/diene copolymer...
Publication number
20020161130
Publication date
Oct 31, 2002
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Toru Arai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...