Patents by Inventor Hidehiro Tomio

Hidehiro Tomio 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).

  • Method for producing a Zn-series electroplated steel sheet
    Patent number: 4857154
    Abstract: A method for producing a steel sheet electroplated with a Zn-series alloy or Zn-series composite material, comprising, using an identical plating liquid, forming an initial electroplated layer in an amount essentially smaller than a subsequent main plating layer: relieving an electrodeposition strain in the initial electroplated layer after or during the formation thereof, and forming the main plating layer on the initial electroplated layer essentially free of the electrodeposition strain, thereby improving a plating adherence of the electroplated layer of Zn-series alloy or Zn-series composite material.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: August 15, 1989
    Assignee: Nippon Steel Corporation
    Inventors: Yoshio Shindo, Fumio Yamazaki, Kouichi Wada, Hidehiro Tomio, Katsushi Saito