ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,731, issued on May 26, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"Steel sheet having excellent formability and strain hardening rate" was invented by Yeon-Sang Ahn (Gwangyang-si, South Korea), Joo-Hyun Ryu (Gwangyang-si, South Korea), Kang-Hyun Choi (Gwangyang-si, South Korea) and Eul-Yong Choi (Gwangyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a steel sheet suitably used for an automobile structural member and the like, and more particularly, to a steel sheet having high strength and excellent formability that may prevent processing defects such as cracks or wrinkles occurring during the press-forming...