ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,729, issued on May 26, was assigned to POSCO Co. LTD (Gyeongsangbuk-Do, South Korea).
"High-strength high-toughness thick steel plate and manufacturing method therefor" was invented by Mo-Chang Kang (Seoul, South Korea) and Dea-Young Jang (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The objective of one aspect of the present invention is to provide: a thick steel plate having high strength and high toughness without carrying out accelerated cooling using water cooling, in the manufacturing, by means of a thermomechanical control process (TMCP), of a thick steel having a thickness of 15 mmt and over; and a method for manufacturin...