ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,568, issued on June 3, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan) and DAIKIN EUROPE N.V. (Ostend, Belgium).
"Compressor unit and refrigeration apparatus" was invented by Takahiro Yamaguchi (Ostend, Belgium) and Yousuke Matsuda (Dubai, United Arab Emirates).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compressor unit includes a first case, a first compressor, a cascade heat exchanger, a second compressor, a first connecting port, and a second connecting port. The first compressor, the cascade heat exchanger, and a heat source heat exchanger accommodated in a second case constitute a first refrigerant cycle. The second compressor, the cas...