ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,406, issued on Jan. 27, was assigned to HITACHI ASTEMO LTD. (Ibaraki, Japan).
"Rotating electric machine" was invented by Ryouichi Takahata (Tokyo), Shigehisa Aoyagi (Hitachinaka, Japan), Noriyuki Maekawa (Hitachinaka, Japan), Daisuke Satou (Tokyo) and Ryuuichirou Iwano (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotating electric machine includes a shaft connected to a rotor, and a facing member fixed to the shaft and facing an end surface of the rotor via a space. The shaft includes an inner flow path through which a refrigerant flows, and a communication hole that allows the inner flow path to communicate with the space. The facing me...