Patents by Inventor Katsuhiko Kashiwagi

Katsuhiko Kashiwagi 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).

  • Corrosion-preventing structure
    Patent number: 4634626
    Abstract: A corrosion-preventing structure for protecting reinforcing bars in reinforced concrete from corrosion. This corrosion-preventing structure comprises an adhesive layer, a swelling agent layer with a water-absorbing polymer blended therein, and a protective cover layer which layers are successively formed onto the surface of the reinforced concrete to be protected from corrosion.
    Type: Grant
    Filed: February 11, 1986
    Date of Patent: January 6, 1987
    Assignee: Bridgestone Corporation
    Inventors: Ikutoshi Yamaguchi, Katsuhiko Kashiwagi, Hideo Goto, Susumu Inoue