US Patent Issued to NIPPON STEEL on Aug. 25 for "Grain-oriented electrical steel sheet and manufacturing method therefor" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,134, issued on Aug. 25, was assigned to NIPPON STEEL Corp. (Tokyo).

"Grain-oriented electrical steel sheet and manufacturing method therefor" was invented by Masaru Takahashi (Tokyo) and Shuichi Yamazaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "This grain-oriented electrical steel sheet is a grain-oriented electrical steel sheet having a final annealing film mainly composed of forsterite and an insulation coating containing pseudo-tetragonal aluminum borate and silica on its surface, wherein one surface or both surfaces of the steel sheet have linear grooves or dot-row shaped recesses with a depth of 5 to 40 micro metre."

The patent wa...