Patents by Inventor Takahiro Ichige

Takahiro Ichige 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 coumarin derivative
    Patent number: 9133174
    Abstract: The present invention provides a novel method for producing a compound represented by general formula (VII) below or a pharmaceutically acceptable salt thereof or a synthetic intermediate thereof: wherein R2 represents a hydrogen atom or a halogen atom, Rc represents a C1-6 alkyl group, X represents a group selected from a heteroaryl group etc., R11 represents an atom or group selected from a hydrogen atom, a halogen atom, a C1-6 alkyl group, etc., R16 and R17 each independently represent an atom or group selected from a hydrogen atom, a C1-6 alkyl group, etc., and R15 represents a hydrogen atom or a C1-6 alkyl group.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: September 15, 2015
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masatoshi Murakata, Takuma Ikeda, Takahiro Ichige
  • Method for Producing Coumarin Derivative
    Publication number: 20140213786
    Abstract: The present invention provides a novel method for producing a compound represented by general formula (VII) below or a pharmaceutically acceptable salt thereof or a synthetic intermediate thereof: wherein R2 represents a hydrogen atom or a halogen atom, Rc represents a C1-6 alkyl group, X represents a group selected from a heteroaryl group etc., R11 represents an atom or group selected from a hydrogen atom, a halogen atom, a C1-6 alkyl group, etc., R16 and R17 each independently represent an atom or group selected from a hydrogen atom, a C1-6 alkyl group, etc., and R15 represents a hydrogen atom or a C1-6 alkyl group.
    Type: Application
    Filed: September 5, 2012
    Publication date: July 31, 2014
    Applicant: CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Masatoshi Murakata, Takuma Ikeda, Takahiro Ichige