Patents by Inventor Keisaku Ihara

Keisaku Ihara 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).

  • Wood preservative composition
    Patent number: 4388215
    Abstract: A wood preservative composition comprising 2-mercaptobenzothiazole or its salt and 2,5-dichloro-4-bromophenol or its salt exerts an unexpected synergistic wood preservative effect against wood destroying fungi and termites.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: June 14, 1983
    Assignee: Sanyo Mokuzai Bofu Kabushiki Kaisha
    Inventors: Hideo Ishida, Masashi Kitada, Keisaku Ihara