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Ichihara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for producing bisphenol A
Patent number
7,045,664
Issue date
May 16, 2006
Idemitsu Kosan Co., Ltd.
Kazuyuki Hirano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for manufacturing polyarylene sulfide
Patent number
5,635,587
Issue date
Jun 3, 1997
Idemitsu Petrochemical Co., Ltd.
Yoshinari Koyama
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Polyarylene sulfide from aromatic compound having at least three fu...
Patent number
5,231,163
Issue date
Jul 27, 1993
Idemitsu Petrochemical Company, Ltd.
Wataru Kosaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyarylene sulfides with lithium hal...
Patent number
5,109,110
Issue date
Apr 28, 1992
Idemitsu Petrochemical Company Limited
Norio Ogata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of recovering a lithium chloride
Patent number
4,919,911
Issue date
Apr 24, 1990
Idemitsu Petrochemical Company Limited
Daigo Shirota
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Two-stage process for production of polyarylene sulfides with lithi...
Patent number
4,910,294
Issue date
Mar 20, 1990
Idemitsu Petrochemical Company Limited
Norio Ogata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing polyarylene sulfide with lithium halide catalyst
Patent number
4,810,773
Issue date
Mar 7, 1989
Idemitsu Petrochemical Co., Ltd.
Norio Ogata
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyesterpolycarbonate
Patent number
4,429,083
Issue date
Jan 31, 1984
Idemitsu Kosan Company Limited
Takashi Nakagawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
Process for producing bisphenol a
Publication number
20060011541
Publication date
Jan 19, 2006
Idemitsu Kosan Co., Ltd.
Kazuyuki Hirano
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Process for production of bisphenol a
Publication number
20050222467
Publication date
Oct 6, 2005
Masahiro Kodama
C07 - ORGANIC CHEMISTRY