Patents by Inventor Daiki Shigehiro

Daiki Shigehiro 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).

  • 5-(trifluoromethyl)pyrimidine derivatives and method for producing same
    Patent number: 10087147
    Abstract: Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: October 2, 2018
    Assignee: TOSOH F-TECH, INC.
    Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
  • 5-(TRIFLUOROMETHYL)PYRIMIDINE DERIVATIVES AND METHOD FOR PRODUCING SAME
    Publication number: 20170217906
    Abstract: Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
  • 5-(trifluoromethyl)pyrimidine derivatives and method for producing same
    Patent number: 9656970
    Abstract: Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 23, 2017
    Assignee: TOSOH F-TECH, INC.
    Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
  • 5-(TRIFLUOROMETHYL)PYRIMIDINE DERIVATIVES AND METHOD FOR PRODUCING SAME
    Publication number: 20160376241
    Abstract: Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
    Type: Application
    Filed: April 23, 2015
    Publication date: December 29, 2016
    Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada