ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,324, issued on May 6, was assigned to Carrier Japan Corp. (Tokyo).
"Motor drive unit and refrigeration cycle apparatus" was invented by Masayuki Yoshimura (Fuji, Japan), Masaya Nogi (Fuji, Japan), Nariya Komazaki (Fuji, Japan) and Ken Miura (Fuji, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a motor drive unit includes a motor including a plurality of phase windings in a mutually unconnected state, a first inverter which controls application of electric power to one ends of the phase windings, a second inverter which controls application of electric power to the other ends of the phase windings, relays each of wh...