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Tatsuya Tomioka
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Kisarazu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Polycarbonate resin for optical disk substrate and optical disk sub...
Patent number
7,067,609
Issue date
Jun 27, 2006
Idemitsu Kosan Co., Ltd.
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polycarbonate resin for optical disk substrate and optical disk sub...
Patent number
6,716,510
Issue date
Apr 6, 2004
Idemitsu Petrochemical Co., Ltd.
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Methods for preparing magnetic powder material and magnet, process...
Patent number
5,350,558
Issue date
Sep 27, 1994
Idemitsu Kosan Co., Ltd.
Hiroshi Kawato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Methods for preparing magnetic powder material and magnet, process...
Patent number
5,256,326
Issue date
Oct 26, 1993
Idemitsu Kosan Co. Ltd.
Hiroshi Kawato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyester carbonate containing imido groups and method of preparing...
Patent number
4,755,584
Issue date
Jul 5, 1988
Idemitsu Kosan Company Limited
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Novel polyester polymers
Patent number
4,749,775
Issue date
Jun 7, 1988
Idemitsu Kosan Co., Ltd.
Tetsuro Takeya
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Flame retardant polycarbonate resin composition
Patent number
4,366,279
Issue date
Dec 28, 1982
Idemitsu Kosan Company Limited
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Polycarbonate resin for optical disk substrate and optical disk sub...
Publication number
20040147713
Publication date
Jul 29, 2004
Idemitsu Petrochemical Co., Ltd.
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate resin for optical disk substrate and optical disk sub...
Publication number
20040143048
Publication date
Jul 22, 2004
Idemitsu Petrochemical Co., Ltd.
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate resin for optical disk substrate and optical disk sub...
Publication number
20040142139
Publication date
Jul 22, 2004
Idemitsu Petrochemical Co., Ltd.
Tatsuya Tomioka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate resin composition
Publication number
20030008965
Publication date
Jan 9, 2003
Masaya Okamoto
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polycarbonate resin for optical disk substrate and optical disk sub...
Publication number
20020137827
Publication date
Sep 26, 2002
Tatsuya Tomioka
G11 - INFORMATION STORAGE