ALEXANDRIA, Va., June 16 -- United States Patent no. 12,658,751, issued on June 16, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).
"Rotary electric machine" was invented by Masanori Sawahata (Tokyo), Masahiro Hori (Tokyo), Hideaki Goto (Hitachinaka, Japan) and Takaki Itaya (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present invention is to provide a rotary electric machine in which damage of a magnet is suppressed and cooling performance of the magnet is improved.The present invention includes a rotation shaft 21, a rotor 20, and core end members 204 and 205 connected to end portions of the rotor 20. The rotor 20 includes a magnet 201, a rotor core 200, and ...