ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,777, issued on Sept. 15, was assigned to NIPPON STEEL Corp. (Tokyo).

"Adhesive bonding structure in stacked core and rotating electrical machine" was invented by Ryu Hirayama (Tokyo), Kazutoshi Takeda (Tokyo), Takeaki Wakisaka (Tokyo) and Shuichi Yamazaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrical steel sheet includes an annular body. At least one of a plurality of adhesion layers (41) is a first adhesion layer. In one of two electrical steel sheets sandwiching the first adhesion layer in a stacking direction, when an imaginary axis intersecting with a central axis of the annular body and extending in an easy-magnetization ...