US Patent Issued to Proterial on July 14 for "Rotary electric machine" (Japanese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,438, issued on July 14, was assigned to Proterial Ltd. (Tokyo).

"Rotary electric machine" was invented by Daisuke Satou (Tokyo), Yuji Enomoto (Tokyo), Ryouichi Takahata (Tokyo), Hirohisa Sano (Tokyo) and Yasuhiro Marukawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A single-phase AC rotary electric machine is provided that eliminates the return coil (return line) and can widen a space where a coil within a slot can be disposed and includes: a rotor; and a stator disposed such that a gap G in a radial direction is present between the rotor and the stator. The rotor includes a plurality of magnets forming rotor magnetic poles N and S dispose...