US Patent Issued to Carrier Japan on July 1 for "Air conditioner that defrosts outdoor heat exchanger based on refrigerant residue amount of outdoor heat exchanger" (Japanese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,426, issued on July 1, was assigned to Carrier Japan Corp. (Tokyo).

"Air conditioner that defrosts outdoor heat exchanger based on refrigerant residue amount of outdoor heat exchanger" was invented by Tomoki Shimizu (Fuji, Japan), Ken Miura (Fuji, Japan) and Tetsuma Hamashima (Fuji, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An air conditioner includes an indoor unit, an outdoor unit, and a controller. The controller of an air conditioner switches between a first defrosting drive to defrost a first outdoor heat exchanger and a second outdoor heat exchanger at the same time, and a second defrosting drive to defrost the first outdoor heat exc...