Patents by Inventor Akihiko Sanada

Akihiko Sanada 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 alkylating the ortho-position of phenol compounds
    Patent number: 4024195
    Abstract: A process for alkylating the ortho-position of a phenol compound which comprises catalytically reacting a phenol compound containing at least one hydrogen atom at its ortho-position with an alcohol in the gaseous phase, characterized by that the catalyst containing iron oxide, silica, chromium oxide and one or more of alkali metal compound is used.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: May 17, 1977
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Eiichi Yonemitsu, Shizuo Togo, Kenichiro Hashimoto, Tomoyuki Yui, Akihiko Sanada