ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,021, issued on Aug. 19, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Rotor and rotating electrical machine using same" was invented by Junji Kitao (Tokyo) and Yu Hirai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor core includes: a bypass barrier which is a nonmagnetic region provided on the q-axis; a first magnet provided in a region of the rotor core that is closer to the d-axis than the q-axis is; and a second magnet at least a portion of which is provided in a region, of the rotor core, on a radially inner side relative to the first magnet. The second magnet is provided in a region of the rotor core that is closer to the q-...