ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,733, issued on Oct. 28, was assigned to JFE Steel Corp. (Tokyo).
"High strength member, method for manufacturing high strength member, and method for manufacturing steel sheet for high strength member" was invented by Takuya Hirashima (Tokyo) and Shinjiro Kaneko (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high strength member according to the present invention is the high strength member having a bending ridge line portion formed from a steel sheet, the member having a tensile strength of 1470 MPa or higher, a residual stress of 300 MPa or lower in an end surface of the bending ridge line portion, and a Vickers hardness (HV) of 200 or hi...