ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,288, issued on Nov. 4, was assigned to NIPPON STEEL Corp. (Tokyo).
"Plated steel sheet" was invented by Shota Hayashida (Tokyo), Takuya Mitsunobu (Tokyo) and Hiroshi Takebayashi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "This plated steel sheet includes a base steel sheet, a plated layer formed on a surface of the base steel sheet, and an oxide film formed on a surface of the plated layer, the plated layer has a chemical composition containing Sc: 0.000010 to 4.0% in mass %, and has a cross section, in the thickness direction, in which the area fraction of an intermetallic compound phase containing Sc and having an equivalent circle diamet...