Patents by Inventor Takashi Touzuka

Takashi Touzuka 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 hexafluoropropanone-2
    Patent number: 4057584
    Abstract: A process for preparing hexafluoropropanone-2 from hexafluoropropene by one step reaction which comprises contacting hexafluoropropene and oxygen with a fluorinated alumina as a catalyst.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: November 8, 1977
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Takashi Touzuka, Yonosuke Ohsaka