Yasuhiro Sakai

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Nerima-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Phosphonic diester derivatives
- Patent number 7,259,155
- Issue date Aug 21, 2007
- Otsuka Pharmaceutical Factory, Inc.
- Yasuhiro Sakai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphonic acid diester derivatives
- Patent number 6,468,992
- Issue date Oct 22, 2002
- Otsuka Pharmaceutical Factory, Inc.
- Yasuhiro Sakai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phosphonic diester derivatives
- Patent number 5,985,858
- Issue date Nov 16, 1999
- Otsuka Pharmaceutical Factory, Inc.
- Kazuyoshi Miyata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing quinazolin-4-one derivatives
- Patent number 5,922,866
- Issue date Jul 13, 1999
- Otsuka Pharmaceutical Factory, Inc.
- Kazuyoshi Miyata
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Phosphonic acid diester compounds
- Publication number 20050256087
- Publication date Nov 17, 2005
- OTSUKA PHARMACEUTICAL FACTORY, INC.
- Yasuhiro Sakai
- C07 - ORGANIC CHEMISTRY