ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,237,724, issued on Feb. 25, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Rotor for rotating electric machine" was invented by Toshinori Okochi (Toyota, Japan), Keiji Kondo (Nagoya, Japan) and Yoshizumi Kitahara (Nishio, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor for a rotating electric machine includes a rotor core provided with a pair of first magnets and a pair of second magnets that are located closer than the first magnets to an outer peripheral side of the rotor core. The rotor core includes a caulking portion disposed in a region between first and second imaginary lines in a radial direction of the rotor core. The first ...