ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,340, issued on Aug. 12, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Bearingless motor" was invented by Masahito Miyoshi (Tokyo), Yusuke Sakamoto (Tokyo) and Shinichi Furutani (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bearingless motor includes a rotor, a stator for applying support force and torque to the rotor, and a first displacement sensor and a second displacement sensor for detecting a radial position of the rotor. The stator includes a motor winding for generating a magnetic flux having p poles to produce the torque, and a support winding for generating a magnetic flux having pplus-minus2 poles or two poles to produce th...