Patents by Inventor Kunio Imada

Kunio Imada 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).

  • Heat-resistant, corrosion-resistant nickel base alloys
    Patent number: 4793970
    Abstract: The present disclosure relates to heat-resistant, corrosion-resistant alloys to be used as materials for the exhaust valve of an internal combustion engine which contain specified amounts of C, Cr, Co, Fe, Ti, Al, Nb, and Ta.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: December 27, 1988
    Inventors: Itaru Niimi, Kametaro Hashimoto, Masamitsu Noguchi, Tadaoki Arakawa, Taizo Suzuki, Kunio Imada