US Patent Issued to JFE Steel on July 7 for "High-strength steel sheet and method for manufacturing same" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,221, issued on July 7, was assigned to JFE Steel Corp. (Tokyo).

"High-strength steel sheet and method for manufacturing same" was invented by Yusuke Wada (Tokyo), Hidekazu Minami (Tokyo) and Yuki Toji (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-strength steel sheet has a tensile strength of 1180 MPa or more. The high-strength steel sheet has a component composition containing C: 0.090 mass % or more and 0.390 mass % or less, Si: 0.01 mass % or more and 2.00 mass % or less, Mn: 2.00 mass % or more and 4.00 mass % or less, P: 0.100 mass % or less, S: 0.0200 mass % or less, Al: 1.000 mass % or less, N: 0.0100 mass % or less, and O: 0.01...