ALEXANDRIA, Va., June 25 -- United States Patent no. 12,341,383, issued on June 24, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Rotor" was invented by Kenichiro Hayashi (Ohbu, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor includes a rotor core provided with a through hole, and a shaft fitted into the through hole. The shaft includes an arc-shaped outer peripheral portion extending along a center of the through hole, and a flat surface portion linearly cutting out at least part of a circle of the outer peripheral portion in a section orthogonal to an extending direction of the center. The through hole of the rotor core includes an inner peripheral portion that faces and is separated f...