ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,860, issued on Jan. 13, was assigned to SANYO DENKI Co. LTD. (Tokyo).

"Rotor for synchronous motor" was invented by Manabu Horiuchi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a rotor of a synchronous motor, including: a plurality of poles; and a plurality of first groove portions located on an outer peripheral portion of the rotor, in which a relationship of C1=Px6N is satisfied, where C1 is a number of the plurality of first groove portions, P is a number of pole pairs of the plurality of poles, and N is any natural number."

The patent was filed on Aug. 16, 2023, under Application No. 18/450,875.

*For further information, i...