US Patent Issued to POSCO on May 20 for "High-strength steel sheet and manufacturing method thereof" (South Korean Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,256, issued on May 20, was assigned to POSCO Co. LTD (Pohang-si, South Korea).

"High-strength steel sheet and manufacturing method thereof" was invented by Young-Roc Im (Gwangyang-si, South Korea), Jae-Hoon Lee (Gwangyang-si, South Korea), Jong-Chan Park (Gwangyang-si, South Korea), Jong-Kweon Kim (Gwangyang-si, South Korea), Il-Hyun Kim (Gwangyang-si, South Korea), Tae-Kyo Han (Gwangyang-si, South Korea) and Tae-Oh Lee (Gwangyang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a high-strength steel sheet including: 0.12% to less than 0.17% of carbon (C), 0.3% to 0.8% of silicon (Si), 2.5% to 3.0% of manganese (Mn), 0.4% t...