ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,045, issued on March 24, was assigned to Masayuki Nashiki (Aichi, Japan).
"Motor and control device thereof" was invented by Masayuki Nashiki (Aichi, Japan) and Hiroyuki Nashiki (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The torque of a permanent magnet motor is increased. There is provided a permanent magnet type motor with concentrated windings, in which each stator pole has a circumferential pitch of 185deg or more in an electric angle. In this motor, the circumferential distribution of the magnetic flux density in an air gap surface of the rotor poles PR of the permanent magnet type has an approximately trapezoidal shape. More...