Patents by Inventor Komatsu Yuzo

Komatsu Yuzo 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 preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene
    Patent number: 8198491
    Abstract: The present invention provides a process for preparing 2,3,3,3-tetrafluoropropene represented by CF3CF?CH2 and 1,3,3,3-tetrafluoropropene represented by CF3CH?CHF, in which 3,3,3-trifluoropropyne represented by the chemical formula CF3C?CH is reacted with hydrogen fluoride under heating. The process of the present invention is a simple, effective and industrially applicable process for preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: June 12, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Nose Masatoshi, Komatsu Yuzo, Sugiyama Akinari, Shibanuma Takashi