ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,498, issued on Dec. 16, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Rotary electric machine" was invented by Haruyuki Kometani (Tokyo), Ryoji Miyatake (Tokyo), Takuro Yamada (Tokyo), Kenji Tanaka (Tokyo) and Yuji Takizawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Increase in weight of a rotary electric machine including a low-speed rotor in which a spacer made of metal is provided between a plurality of magnetic pole pieces, can be suppressed. The rotary electric machine includes a stator, a first rotor provided so as to be rotatable with respect to the stator, and a second rotor provided coaxially with the first rotor. The first...