Patents by Inventor Ken'ichioh NAKAMURA

Ken'ichioh NAKAMURA 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).

  • Heterocyclic ring and carbocyclic derivative
    Patent number: 9550763
    Abstract: The present invention provides novel compounds having a P2X3 and/or P2X2/3 receptor antagonistic effect, e.g. a compound of Formula (I): wherein R2 is a hydrogen atom or the like; ring A is five- to seven-cycloalkane or the like; C is a carbon atom; Q1 and Q2 are carbon atoms or the like; R9a and R9b are carbon atoms or the like; R6 is cycloalkyl or the like; R7 is a group represented by the formula: wherein ring D is benzene or the like; carbon atom a and b are carbon atoms; ring B is an aromatic carbocyclic ring or the like; s and s? are 0 or the like; R9 and R9? are halogen or the like, or the like, or its pharmaceutically acceptable salt.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: January 24, 2017
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Hiroyuki Kai, Satoru Tanaka, Yoshiharu Hiramatsu, Azusa Nozu, Ken'ichioh Nakamura
  • Heterocyclic Ring and Carbocyclic Derivative
    Publication number: 20160024072
    Abstract: The present invention provides novel compounds having a P2X3 and/or P2X2/3 receptor antagonistic effect, e.g. a compound of Formula (I): wherein R2 is a hydrogen atom or the like; ring A is five- to seven-cycloalkane or the like; C is a carbon atom; Q1 and Q2 are carbon atoms or the like; R9a and R9b are carbon atoms or the like; R6 is cycloalkyl or the like; R7 is a group represented by the formula: wherein ring D is benzene or the like; carbon atom a and b are carbon atoms; ring B is an aromatic carbocyclic ring or the like; s and s? are 0 or the like; R9 and R9? are halogen or the like, or the like, or its pharmaceutically acceptable salt.
    Type: Application
    Filed: February 8, 2013
    Publication date: January 28, 2016
    Inventors: Hiroyuki KAI, Satoru TANAKA, Yoshiharu HIRAMATSU, Azusa NOZU, Ken'ichioh NAKAMURA