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Hitoshi Yano
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Suita, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for preparing deodorized N-vinyl-2-pyrrolidone
Patent number
7,037,412
Issue date
May 2, 2006
Nippon Shokubai Co., Ltd.
Kazuaki Abe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of purifying N-(2-hydroxyethy)-2-pyrrolidone
Patent number
6,726,811
Issue date
Apr 27, 2004
Nippon Shokubai Co., Ltd.
Shukichi Ugamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for recovering N-vinyl-2-pyrrolidone
Patent number
6,436,243
Issue date
Aug 20, 2002
Nippon Shokubai Co Ltd
Yoshinari Yamaguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for recovering alkyl vinyl ether
Patent number
6,090,988
Issue date
Jul 18, 2000
Nippon Shokubai Co., Ltd.
Hideyuki Kambe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of recovering and dehydrating ethylene sulfide
Patent number
5,833,813
Issue date
Nov 10, 1998
Nippon Shokubai Co., Ltd.
Hitoshi Yano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of cyclic N-vinyl carboxylic acid amide
Patent number
5,801,252
Issue date
Sep 1, 1998
Nippon Shokubai Co., Ltd.
Hitoshi Yano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst for production of tertiary N-alkenyl carboxylic acid amide...
Patent number
5,625,076
Issue date
Apr 29, 1997
Nippon Shokubai Co., Ltd.
Yuuji Shimasaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing modified polyaminoamide, modified polyaminoam...
Patent number
5,478,912
Issue date
Dec 26, 1995
Nippon Shokubai Co., Ltd.
Kazumasa Kimura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing alkylene sulfides
Patent number
5,304,656
Issue date
Apr 19, 1994
Nippon Shokubai Co., Ltd.
Hitoshi Yano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing N-substituted aziridine compound
Patent number
5,231,189
Issue date
Jul 27, 1993
Nippon Shokubai Co., Ltd.
Hideaki Tuneki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst for vapor-phase intramolecular dehydration reaction of alk...
Patent number
4,833,248
Issue date
May 23, 1989
Nippon Shokubai Kagaku Kogyo Co., Ltd.
Yuuji Shimasaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst for vapor-phase intramolecular dehydration reaction of alk...
Patent number
4,774,218
Issue date
Sep 27, 1988
Nippon Shokubai Kagaku Kogyo Co., Ltd.
Yuuji Shimasaki
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Process for rectifying n-vinyl-2-pyrrolidone
Publication number
20060281928
Publication date
Dec 14, 2006
Hideto Sugiura
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Method for preparing deodorized N-vinyl-2-pyrrolidone
Publication number
20030176712
Publication date
Sep 18, 2003
NIPPON SHOKUBAI CO., LTD.
Kazuaki Abe
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Method of purifying N-(2-hydroxyethy)-2- pyrrolidone
Publication number
20020139657
Publication date
Oct 3, 2002
NIPPON SHOKUBAI CO., LTD.
Shukichi Ugamura
C07 - ORGANIC CHEMISTRY