US Patent Issued to NIPPON STEEL on June 30 for "Zinc-plated steel sheet for hot stamping, method of manufacturing zinc-plated steel sheet for hot stamping, and hot-stamping formed body" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,860, issued on June 30, was assigned to NIPPON STEEL Corp. (Tokyo).

"Zinc-plated steel sheet for hot stamping, method of manufacturing zinc-plated steel sheet for hot stamping, and hot-stamping formed body" was invented by Hiroyuki Nakagawa (Tokyo) and Hiroki Akutsu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A zinc-plated steel sheet for hot stamping includes a steel sheet having a predetermined chemical composition and a zinc plating film disposed on the steel sheet. In the zinc plating film, the plating adhesion amount is 15.0 g/m2 or more and less than 40.0 g/m2, the Fe concentration is 1.5 mass % or more and 8.0 mass % or less, the Al...