ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,345, issued on Feb. 18, was assigned to M. TECHNIQUE Co. LTD. (Izumi, Japan).
"Heat exchanger" was invented by Masakazu Enomura (Izumi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchanger includes three flow paths, a first flow path, a second flow path, and a third flow path, which turn spirally in the space formed between an inner cylinder and an outer cylinder are provided. These flow paths are defined by an inner heat transfer body and an outer heat transfer body, and heat exchange is performed through the heat transfer bodies. The heat transfer bodies turn spirally, have a screw shape in an axial cross-sectional view, and are a...