ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,791, issued on Aug. 18, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"High-strength galvannealed steel sheet having excellent powdering resistance and manufacturing method therefor" was invented by Yu-Mi Ha (Gwangyang-si, South Korea), Jun-Sung Yeom (Gwangyang-si, South Korea) and Ji-Ho Hong (Gwangyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a galvannealed steel sheet having excellent powdering resistance, and a manufacturing method therefor. The galvannealed steel sheet includes: base iron; and an alloying hot-dip galvanized layer provided on the surface thereof. The base iron includes, by weight %; 0.0...