ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,809, issued on June 10, was assigned to POSCO (Pohang-si, South Korea) and NOROO COIL COATINGS Co. LTD. (Pohang-si, South Korea).
"Composition for surface treating of steel sheet, steel sheet using same, and manufacturing method of same" was invented by Chang-Hoon Choi (Gwangyang-si, South Korea), Won-Ho Son (Pohang-si, South Korea), Chan-Seok Bang (Pohang-si, South Korea) and Jae-Duck Ko (Anyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a solution composition having excellent acid corrosion resistance and adhesion to a steel sheet, a steel sheet surface-treated using the solution composition, and...