Kiyoshi Takumi

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Osaka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for removing quaternary salt
- Patent number 9,469,596
- Issue date Oct 18, 2016
- Arakawa Chemical Industries, Ltd.
- Kiyoshi Takumi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing epoxy compound
- Patent number 9,045,446
- Issue date Jun 2, 2015
- Arakawa Chemical Industries, Ltd.
- Naoki Sasagawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for manufacturing an epoxy compound and method for epoxidizi...
- Patent number 8,742,145
- Issue date Jun 3, 2014
- Arakawa Chemical Industries, Ltd.
- Kiyoshi Takumi
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR REMOVING QUATERNARY SALT
- Publication number 20150031918
- Publication date Jan 29, 2015
- ARAKAWA CHEMICAL INDUSTRIES, LTD.
- Kiyoshi Takumi
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PRODUCING EPOXY COMPOUND
- Publication number 20140073806
- Publication date Mar 13, 2014
- ARAKAWA CHEMICAL INDUSTRIES, LTD.
- Naoki Sasagawa
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR MANUFACTURING AN EPOXY COMPOUND AND METHOD FOR EPOXIDIZI...
- Publication number 20120108830
- Publication date May 3, 2012
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Kiyoshi Takumi
- C07 - ORGANIC CHEMISTRY