Yuichi Tomoda

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Fukui-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing 2,4′-dihydroxydiphenylsulfone
- Patent number 7,189,880
- Issue date Mar 13, 2007
- Nicca Chemical Co., Ltd.
- Gou Yoshino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of making 4-hydroxy-4'-benzyloxydiphenyl sulfone
- Patent number 6,046,363
- Issue date Apr 4, 2000
- Nicca Chemical Co., Ltd.
- Yuichi Tomoda
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Paper transparentizing agent
- Publication number 20060162885
- Publication date Jul 27, 2006
- NICCA CHEMICAL CO., LTD.
- Yuichi Tomoda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for producing 2,4'-dihydroxydiphenyl sulfone
- Publication number 20050049437
- Publication date Mar 3, 2005
- NICCA CHEMICAL CO., LTD.
- Gou Yoshino
- C07 - ORGANIC CHEMISTRY