Patents by Inventor Yuki Takekawa

Yuki Takekawa 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).

  • Imidazo[1,2-C]pyrimidinylacetic acid derivatives
    Patent number: 7750014
    Abstract: The present invention relates to an imidazo[1,2-c]pyrimidinylacetic acid derivative and salts thereof which is useful as an active ingredient of pharmaceutical preparations.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 6, 2010
    Assignee: Actimis Pharmaceuticals, Inc.
    Inventors: Tai-Wei Ly, Takashi Yoshino, Yuki Takekawa, Takuya Shintani, Hiromi Sugimoto, Kevin Bacon, Klaus Urbahns
  • Method for producing optically active N-protected-propargylglycine
    Patent number: 7645607
    Abstract: A method for producing (S)—N-protected-propargylglycine of the following formula (2), wherein the method comprises asymmetrically hydrolyzing an N-protected-propargylglycine ester of the following formula (1) by using an asymmetric hydrolysis enzyme or a cultured substance of a microorganism having an ability of producing this enzyme or a treated substance thereof. The hydrolysis enzyme is obtained from a microorganism selected from the group consisting of Thermomyces genus, Aspergillus genus, Rhizopus genus, Penicillium genus, Pseudomonas genus, Humicola genus, Burkholderia genus, Candida genus Bacillus genus and Streptomyces genus.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: January 12, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yuki Takekawa, Isao Kurimoto
  • Imidazo[1,2-C]Pyrimidinylacetic Acid Derivatives
    Publication number: 20090012102
    Abstract: The present invention relates to an imidazo[1,2-c]pyrimidinylacetic acid derivative and salts thereof which is useful as an active ingredient of pharmaceutical preparations.
    Type: Application
    Filed: January 19, 2005
    Publication date: January 8, 2009
    Applicant: Actimis Pharmaceuticals, Inc.
    Inventors: Tai-wei Ly, Takashi Yoshino, Yuki Takekawa, Takuya Shintani, Hiromi Sugimoto, Kevin Bacon, Klaus Urbahns
  • Method for producing optically active N-protected-propargylglycine
    Publication number: 20060216806
    Abstract: A method for producing (S)-N-protected-propargylglycine of the following formula (2), wherein the method comprises asymmetrically hydrolyzing an N-protected-propargylglycine ester of the following formula (1) by using the following asymmetric hydrolysis enzyme or a cultured substance of a microorganism having an ability of producing this enzyme or a treated substance thereof. [Asymmetric Hydrolysis Enzyme] Hydrolysis enzymes derived from a microorganism selected from the group consisting of Thermomyces genus, Aspergillus genus, Rhizopus genus, Penicillium genus, Pseudomonas genus, Humicola genus, Burkholderia genus, Candida genus and Streptomyces genus.
    Type: Application
    Filed: March 20, 2006
    Publication date: September 28, 2006
    Inventors: Yuki Takekawa, Isao Kurimoto