ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,764, issued on Aug. 4.
"Motor rotor" was invented by Weidong Lu (Los Altos, Calif.) and Daisy Kwok (Los Altos, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The patent application discloses a rotor for a motor. The rotor may comprise a shaft body, a shaft, a rotor magnet, and a plurality of air holes. The shaft body may have a first end, a second end, and a cylindrical body between the first end and the second end. The shaft may extend along a central axis of the shaft body. The rotor magnet on a magnetic slot inside the cylindrical body may be configured to rotate together with the shaft. The plurality of air holes on the first end of the sh...