ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,118, issued on Jan. 20, was assigned to NIPPON STEEL Corp. (Tokyo).

"Hot rolled steel sheet for non oriented electrical steel sheet and producing method thereof" was invented by Yoshihiro Arita (Tokyo), Takeru Ichie (Tokyo) and Fuminobu Murakami (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hot rolled steel sheet is for a non oriented electrical steel sheet, wherein vickers hardness at the widthwise edge is 180 Hv or more, a value obtained by subtracting a vickers hardness at the widthwise center from the vickers hardness at the widthwise edge is 10 to 100 Hv, ductile brittle transition temperature at the widthwise edge is 0deg C. or less,...