ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,375, issued on June 17, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"Grain-oriented electrical steel sheet and method for producing same" was invented by Dae-Hyun Song (Pohang-si, South Korea) and June Soo Park (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 includes: an electrical steel sheet substrate including, by wt %, 2.0 to 6.0% of Si, equal to or less than 0.005% of C (excluding 0%), 0.01 to 0.05% of Sb, 0.03 to 0.08% of Sn, 0.01 to 0.2% of Cr, and 0.0003 to 0.097% of Co, and including a remainder of Fe and inevitable...