Hiroyoshi Watanabe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
24-hydroxy vitamin D derivatives
- Patent number 6,538,145
- Issue date Mar 25, 2003
- CHUGAI SEIYAKU KABUSHIKI KAISHA
- Susumi Hatakeyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Vitamin D derivatives substituted at the 2beta-position
- Patent number 6,410,523
- Issue date Jun 25, 2002
- CHUGAI SEIYAKU KABUSHIKI KAISHA
- Hiroyoshi Watanabe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
22-oxacholecalciferol derivative and process for preparing the same
- Patent number 5,436,401
- Issue date Jul 25, 1995
- Chugai Seiyaku Kabushiki Kaisha
- Masahiro Kato
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
24-hydroxy vitamin D derivatives
- Publication number 20020094972
- Publication date Jul 18, 2002
- Chugai SeiYaku Kabushiki Kaisha
- Susumi Hatakeyama
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Vitamin D derivative having substituent at 2beta-position
- Publication number 20020045772
- Publication date Apr 18, 2002
- Chugai SeiYaku Kabushiki Kaisha
- Hiroyoshi Watanabe
- C07 - ORGANIC CHEMISTRY