Patents by Inventor Shigeo Yanagihara

Shigeo Yanagihara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for producing olmesartan medoxomil
    Patent number: 8933241
    Abstract: A method for producing high-purity olmesartan medoxomil is provided in which a solvent containing water is used in steps of tritylation and DMDO esterification of olmesartan.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: January 13, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventor: Shigeo Yanagihara
  • METHOD FOR PRODUCING OLMESARTAN MEDOXOMIL
    Publication number: 20120071665
    Abstract: A method for producing high-purity olmesartan medoxomil is provided in which a solvent containing water is used in steps of tritylation and DMDO esterification of olmesartan.
    Type: Application
    Filed: April 27, 2010
    Publication date: March 22, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventor: Shigeo Yanagihara