Yutaka Sugiyama

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing high purity trialkanolamine
- Patent number 7,164,044
- Issue date Jan 16, 2007
- Nippon Shokubai Co., Ltd.
- Fumiaki Morishita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Crosslinked polymers containing tertiary amine and/or quaternary am...
- Patent number 6,646,083
- Issue date Nov 11, 2003
- Nippon Shokubai Co., Ltd.
- Yoshiaki Hirano
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for production of high-purity monoethylene glycol
- Patent number 6,437,199
- Issue date Aug 20, 2002
- Nippon Shokubai Co., Ltd.
- Yoshihisa Oka
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for producing high purity trialkanolamine
- Publication number 20040158102
- Publication date Aug 12, 2004
- Fumiaki Morishita
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Crosslinked polymer, method for manufacturing it and use thereof
- Publication number 20020028887
- Publication date Mar 7, 2002
- Yoshiaki Hirano
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...