Patents by Inventor Hiroshi Megumi

Hiroshi Megumi 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 removing and treating waste catalyst
    Patent number: 4268414
    Abstract: A method for removing and treating waste catalyst resulting from the catalytic reaction of hydrocarbons, characterized by wetting the catalyst with water or a mineral oil containing one or more lactones.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: May 19, 1981
    Assignee: Nippon Mining Co., Ltd.
    Inventors: Katsuhiko Kawakami, Kenji Komori, Hiroshi Megumi