ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,672, issued on Oct. 21, was assigned to POSCO (Pohang-si, South Korea).
"Grain-oriented electrical steel sheet and method for producing same" was invented by Dae-Hyun Song (Pohang-si, South Korea), Junesoo Park (Pohang-si, South Korea) and Sang-Woo Lee (Pohang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A grain-oriented electrical steel sheet according to an embodiment of the present invention may comprise: by weight %, 2.0-4.0% of Si, 0.04-0.2% of Mn, 0.010% or less (exclusive of 0%) of N, 0.01-0.05% of Sb, 0.005% or less (exclusive of 0%) of C, 0.03-0.08% of Sn, 0.01-0.2% of Cr, and the balance of Fe and inevitable impurities; a...