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Shigenobu Miyake
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Oita, JP
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last 30 patents
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Patent Grant
Catalyst component for olefin polymerization catalyst for olefin po...
Patent number
6,303,714
Issue date
Oct 16, 2001
Japan Polyolefins Co., Ltd.
Nobuyuki Kibino
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ionic compound and olefin polymerization catalyst containing the same
Patent number
5,869,723
Issue date
Feb 9, 1999
Showa Denko K.K.
Shinji Hinokuma
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst component for producing polyolefin, catalyst for producing...
Patent number
5,770,664
Issue date
Jun 23, 1998
Japan Polyolefins Co., Ltd.
Yoshikuni Okumura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Metallocene and process for producing polyolefin using the same
Patent number
5,349,032
Issue date
Sep 20, 1994
Showa Denko K.K.
Shigenobu Miyake
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Metallocene and process for producing polyolefin using the same
Patent number
5,329,031
Issue date
Jul 12, 1994
Showa Denko K.K.
Shigenobu Miyake
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing narrow molecular weight distribution syndiota...
Patent number
5,218,064
Issue date
Jun 8, 1993
Showa Denko K.K.
Hajime Yasuda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst, process for preparation of same and process for polymeriz...
Patent number
5,208,302
Issue date
May 4, 1993
Showa Denko K.K.
Tetuo Nakajo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing narrow molecular weight distribution syndiota...
Patent number
5,132,369
Issue date
Jul 21, 1992
Showa Denko K.K.
Hajime Yasuda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst, process for preparation of same, and process for polymeri...
Patent number
5,049,533
Issue date
Sep 17, 1991
Showa Denko K.K.
Tetuo Nakajo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst process for preparation of same, and process for polymeriz...
Patent number
5,041,403
Issue date
Aug 20, 1991
Showa Denko K.K.
Tetuo Nakajo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...