US Patent Issued to JFE STEEL on May 12 for "Delayed fracture characteristic evaluation method and program" (Japanese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,043, issued on May 12, was assigned to JFE STEEL Corp. (Tokyo).

"Delayed fracture characteristic evaluation method and program" was invented by Yuichi Matsuki (Tokyo), Toyohisa Shinmiya (Tokyo), Kinya Nakagawa (Tokyo) and Yuji Yamasaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "To further enhance the evaluation accuracy of a delayed fracture. Focusing on the fact that a calculated stress value serving as the reference for the occurrence of the delayed fracture changes depending on analysis conditions of a forming analysis, a value obtained by changing a stress value serving as the reference for the occurrence of the delayed fracture accord...