ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,651, issued on May 27, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"Oriented electrical steel sheet and manufacturing method therefor" was invented by Hyun Jong Kim (Pohang-si, South Korea) and Heon-Jo Choi (Pohang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a manufacturing method of a grain-oriented electrical steel sheet including preparing a hot-rolled sheet by hot-rolling a slab; removing some of scales formed on the hot-rolled sheet and leaving a scale layer having a thickness of 10 nm or more to prepare a hot-rolled sheet on which the scale layer remains; preparing a cold-rolled sheet by cold-rolling ...