US Patent Issued to NIPPON STEEL on June 2 for "Hot stamped body" (Japanese Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,171, issued on June 2, was assigned to NIPPON STEEL Corp. (Tokyo).

"Hot stamped body" was invented by Kazuma Ito (Tokyo), Shinichiro Tabata (Tokyo) and Yuri Toda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a hot stamped body having a chemical composition comprising, by mass %, C: 0.40 to 0.70%, P: 0.100% or less, S: 0.0100% or less, N: 0.0200% or less, O: 0.0200% or less, Al: 0.0010 to 0.500%, Nb: 0.0010 to 0.100%, Ti: 0.010 to 0.200%, Mo: 0.010 to 2.000%, B: 0.0005 to 0.0200%, etc., and balance of Fe and impurities, and a microstructure with a total amount of segregation of at least one of Mo, W, Ta, Re, Os, Ir, and Tc at prior...