ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,611, issued on July 15, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Permanent magnet synchronous motor" was invented by Kenta Motoyoshi (Tokyo), Yuki Nishimura (Tokyo) and Yu Hirotani (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A permanent magnet includes a recessed portion to fit therein with a protrusion provide in a rotor core; and, when the shortest distance between outmost part of the recessed portion and an outer periphery's circular arc portion of the magnet is defined as L1, and when the distance between the recessed portion and the outer periphery's circular arc portion is defined as L2 where the distance L2 passes through...