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Hajime Shouzaki
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Ichihara, JP
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last 30 patents
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Patent Grant
Styrene polymer and molded object obtained by molding the polymer
Patent number
6,359,094
Issue date
Mar 19, 2002
Idemitsu Petrochemical Co., Ltd.
Masanori Sera
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing polymer
Patent number
6,100,352
Issue date
Aug 8, 2000
Idemitsu Kosan Co., Ltd.
Hajime Shouzaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst for production of vinyl-based polymer and process for prod...
Patent number
5,858,904
Issue date
Jan 12, 1999
Idemitsu Kosan Co., Ltd.
Mizutomo Takeuchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst for producing sytrenic polymer and process for producing s...
Patent number
5,747,614
Issue date
May 5, 1998
Idemitsu Kosan Co., Ltd.
Mizutomo Takeuchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing aromatic vinyl compound-based copolymer
Patent number
5,747,613
Issue date
May 5, 1998
Idemitsu Kosan Co., Ltd.
Mizutomo Takeuchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst for producing aromatic vinyl compound-based polymer compos...
Patent number
5,670,587
Issue date
Sep 23, 1997
Idemitsu Kosan Co., Ltd.
Mizutomo Takeuchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...