Etsuji Yamanaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for production of 5-chloro-2,4-dihydroxypyridine
- Patent number 7,557,216
- Issue date Jul 7, 2009
- Taiho Pharmaceutical Co., Ltd.
- Hiroshi Nagasawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sulfated polysaccharide, pharmaceutically acceptable salt thereof,...
- Patent number 5,519,010
- Issue date May 21, 1996
- Taiho Pharmaceutical Co., Ltd.
- Hui-Zeng Fan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR PRODUCTION OF 5-CHLORO-2,4-DIHYDROXYPYRIDINE
- Publication number 20090043101
- Publication date Feb 12, 2009
- TAIHO PHARMACEUTICAL CO., LTD.
- Hiroshi Nagasawa
- C07 - ORGANIC CHEMISTRY