ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,487, issued on July 28, was assigned to JFE STEEL Corp. (Tokyo).
"Method, device, and program of designing press forming die, and method of manufacturing press formed part" was invented by Yasuhiro Kishigami (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A designing method of a press forming die reduces a press forming load and includes: making a die model in which a surface of the press forming die is provided with a virtual thickness by a nonrigid two-dimensional element; setting stiffness distributions of the die model by making a boundary condition of the two-dimensional element vary depending on a portion of the die model; acquiring a pr...