ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,513, issued on May 5, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"Oriented electrical steel sheet and method for manufacturing same" was invented by Jong-Tae Park (Pohang-si, South Korea), Oh-Yeoul Kwon (Pohang-si, South Korea) and Woo-Sin Kim (Pohang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A manufacturing method of a grain-oriented electrical steel sheet according to an embodiment of the present invention includes producing a cold-rolled plate; forming a groove in the cold-rolled plate; performing primary recrystallization annealing to the cold-rolled plate; and applying an annealing separator to the primary-recrys...