Patents by Inventor Hideo Hamasaki

Hideo Hamasaki 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).

  • Process for producing fluorinated propene
    Patent number: 8487144
    Abstract: There is provided according to the present invention a process for producing 1-chloro-3,3,3-trifluoropropene or 1,3,3,3-tetrafluoropropene, including: reacting 1,1,1,3,3-pentafluoropropane with hydrogen chloride in a gas phase in the presence of a solid catalyst. By the use of a specific solid catalyst such as a catalyst in which chromium is supported on alumina or activated carbon or an alumina catalyst, the 1-chloro-3,3,3-trifluoropropene or 1,3,3,3-tetrafluoropropene can be obtained with high yield from the 1,1,1,3,3-pentafluoropropane, which can be commercially available or prepared on an industrial scale.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: July 16, 2013
    Assignee: Central Glass Company, Ltd.
    Inventors: Hideo Hamasaki, Yasuo Hibino
  • Process for Producing Fluorinated Propene
    Publication number: 20110172470
    Abstract: There is provided according to the present invention a process for producing 1-chloro-3,3,3-trifluoropropene or 1,3,3,3-tetrafluoropropene, including: reacting 1,1,1,3,3-pentafluoropropane with hydrogen chloride in a gas phase in the presence of a solid catalyst. By the use of a specific solid catalyst such as a catalyst in which chromium is supported on alumina or activated carbon or an alumina catalyst, the 1-chloro-3,3,3-trifluoropropene or 1,3,3,3-tetrafluoropropene can be obtained with high yield from the 1,1,1,3,3-pentafluoropropane, which can be commercially available or prepared on an industrial scale.
    Type: Application
    Filed: September 4, 2009
    Publication date: July 14, 2011
    Applicant: Central Glass Company, Limited
    Inventors: Hideo Hamasaki, Yasuo Hibino