Patents by Inventor Yuichi Hashikawa

Yuichi Hashikawa 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 3-chloro-pentafluoropropene
    Patent number: 8816138
    Abstract: The present invention provides a method for producing 3-chloro-pentafluoropropene at a high yield through one reaction step of chlorinating perfluoroallyl fluorosulfate. The present invention directs to a method for producing 3 -chloro-pentafluoropropene, including the step of bringing perfluoroallyl fluorosulfate and an onium chloride compound into contact with each other to produce the 3-chloro-pentafluoropropene.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: August 26, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Shinsuke Ohshita, Yuichi Hashikawa, Masahiro Kondo, Takashi Yoshimura, Noriyuki Shinoki, Emi Mantani
  • METHOD FOR PRODUCING 3-CHLORO-PENTAFLUOROPROPENE
    Publication number: 20130023704
    Abstract: The present invention provides a method for producing 3-chloro-pentafluoropropene at a high yield through one reaction step of chlorinating perfluoroallyl fluorosulfate. The present invention directs to a method for producing 3-chloro-pentafluoropropene, including the step of bringing perfluoroallyl fluorosulfate and an onium chloride compound into contact with each other to produce the 3-chloro-pentafluoropropene.
    Type: Application
    Filed: March 28, 2011
    Publication date: January 24, 2013
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuichi Hashikawa, Masahiro Kondo, Takashi Yoshimura, Noriyuki Shinoki, Emi Mantani