ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,722, issued on Nov. 25, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Heat exchanger" was invented by Masaya Kasai (Osaka, Japan) and Takema Nakazawa (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchanger includes flat sheet shaped partition members, and spacing members alternately stacked with the partition members to keep a space between an adjacent pair of the partition members. Each of the partition members is sandwiched between a first passage and a second passage alternately formed. Each of the spacing members has a frame portion formed along a periphery of the partition members. Each frame portion includes a r...