Masahiko Seki

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Nagaokakyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for production of biphenyl derivative
- Patent number 8,530,506
- Issue date Sep 10, 2013
- Mitsubishi Tanabe Pharma Corporation
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Biotin intermediate and process for preparing the same
- Patent number 7,799,929
- Issue date Sep 21, 2010
- Tanabe Seiyaku Co., Ltd.
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 3-acylaminobenzofuran-2-carboxylic acid deriv...
- Patent number 7,439,368
- Issue date Oct 21, 2008
- Mitsubishi Tanabe Pharma Corporation
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediate for biotin and process for producing the same
- Patent number 7,335,778
- Issue date Feb 26, 2008
- Tanabe Seiyaku Co., Ltd.
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing acetoxyazetidinone derivative and intermediat...
- Patent number 5,831,091
- Issue date Nov 3, 1998
- Tanabe Seiyaku Co., Ltd.
- Hiroshi Ohmizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 4-mercaptopyrrolidine intermediate compounds...
- Patent number 5,629,419
- Issue date May 13, 1997
- Tanabe Seiyaku Co., Ltd.
- Hiroshi Ohmizu
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR PRODUCTION OF BIPHENYL DERIVATIVE
- Publication number 20120232283
- Publication date Sep 13, 2012
- MITSUBISHI TANABE PHARMA CORPORATION
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR PREPARING 3-ACYLAMINOBENZOFURAN-2-CARBOXYLIC ACID DERIV...
- Publication number 20090023918
- Publication date Jan 22, 2009
- Masahiko SEKI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Biotin intermediate and process for preparing the same
- Publication number 20080119655
- Publication date May 22, 2008
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for producing 3-acylaminobenzofuran-2-carboxylic acid deriv...
- Publication number 20060173188
- Publication date Aug 3, 2006
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Intermediate for biotin and process for producing the same
- Publication number 20050038260
- Publication date Feb 17, 2005
- Masahiko Seki
- C07 - ORGANIC CHEMISTRY