Patents by Inventor Hitoshi Kohashi

Hitoshi Kohashi 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).

  • Aqueous rust inhibitor composition
    Patent number: 4888132
    Abstract: An aqueous rust inhibitor containing a soap of a hydroxyaryl fatty acid and an alkali metal. The inhibitor exhibits good rust inhibiting effects without emitting any malodor.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: December 19, 1989
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Hitoshi Kohashi, Nobuhiko Shizuka, Yoshihito Kadoma