Ayako Tosaka

Follow

Person

Kunitachi-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
2-oxochromene derivatives
- Patent number 7,919,509
- Issue date Apr 5, 2011
- Kowa Company, Ltd.
- Ayumu Okuda
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing cyclic diamine derivative
- Patent number 7,576,203
- Issue date Aug 18, 2009
- Kowa Co., Ltd.
- Kimiyuki Shibuya
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
2-OXOCHROMENE DERIVATIVES
- Publication number 20090286780
- Publication date Nov 19, 2009
- Kowa Company, Ltd.
- Ayumu OKUDA
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for Producing Cyclic Diamine Derivative
- Publication number 20080045714
- Publication date Feb 21, 2008
- KOWA CO., LTD.
- Kimiyuki Shibuya
- C07 - ORGANIC CHEMISTRY