Patents by Inventor Hidezumi Katoh

Hidezumi Katoh 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).

  • Plated aluminum alloy, cylinder block thereof, plating line and plating method
    Patent number: 5980722
    Abstract: A method of plating an aluminum alloy, of which the steps are small in number and the productivity is improved as compared with conventional zincate conversion or anodic oxidation methods and which attains a decrease in cost and obviates the use of mixed acids, and a plated aluminum alloy of which the coating has excellent adhesion, the method comprising the steps of carrying out anodic etching of a silicon-containing aluminum alloy to protrude silicon from the surface of the aluminum alloy, optionally carrying out anodic oxidation of the aluminum alloy on its surface from which the silicon is protruded, and plating the aluminum alloy, and the plated aluminum alloy containing silicon in a state where the silicon bridges the aluminum alloy and the plating layer.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: November 9, 1999
    Assignee: Suzuki Motor Corporation
    Inventors: Tetsuya Kuroda, Hidezumi Katoh, Hitoshi Muramatsu