Patents by Inventor Katsuhisa Sugimoto

Katsuhisa Sugimoto 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).

  • Alloy with ultrafine crystal grains excellent in corrosion resistance
    Patent number: 5658398
    Abstract: There is provided an alloy with ultrafine crystal grains excellent in corrosion resistance, at least 50% of the alloy structure being occupied by ultrafine crystal grains, the alloy having a surface layer containing hydroxide components in a total proportion of 65% or more based on oxide components.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: August 19, 1997
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yoshihito Yoshizawa, Shunsuke Arakawa, Katsuhisa Sugimoto