ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,929, issued on Jan. 13, was assigned to NIPPON STEEL Corp. (Tokyo).
"Steel sheet for hot stamping and hot-stamped member" was invented by Yuki Suzuki (Tokyo), Kenta Uenishi (Tokyo), Soshi Fujita (Tokyo) and Masahiro Fuda (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a steel sheet for hot stamping suitable for manufacturing, through hot-stamping working, a component having portions with different strengths, and a hot-stamped member having portions with different strengths. A steel sheet for hot stamping according to the present invention includes, on a surface of the steel sheet: a site having a surface-treated film whose emissivit...