ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,630, issued on Feb. 17, was assigned to FUJITSU GENERAL Ltd. (Kanagawa, Japan).
"Air conditioner" was invented by Masahiro Kondo (Kawasaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an air conditioner with a refrigerant sensor installed in a room, which can reduce the amount of refrigerant leakage while limiting the installation cost of a shut-off valve. The air conditioner includes a liquid-side shut-off valve connected between an outdoor heat exchanger and an indoor unit-side expansion valve, a gas-side shut-off valve connected between an indoor heat exchanger and a compressor, a bypass passage in which one end is conn...