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Hideto Sugiura
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Kawasaki-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Production method of N-vinyl-2-pyrrolidone
Patent number
9,096,516
Issue date
Aug 4, 2015
Nippon Shokubai Co., Ltd.
Hideto Sugiura
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
Patents Applications
last 30 patents
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Patent Application
PRODUCTION METHOD OF N-VINYL-2-PYRROLIDONE
Publication number
20110218344
Publication date
Sep 8, 2011
Nippon Shokubai Co., Ltd.
Hideto SUGIURA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Production Method of N-Vinyl-2-Pyrrolidone
Publication number
20090088579
Publication date
Apr 2, 2009
NIPPON SHOKUBAI CO., LTD
Hideto Sugiura
C07 - ORGANIC CHEMISTRY
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 of purifying N-(2-hydroxyethy)-2- pyrrolidone
Publication number
20020139657
Publication date
Oct 3, 2002
NIPPON SHOKUBAI CO., LTD.
Shukichi Ugamura
C07 - ORGANIC CHEMISTRY