ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,146, issued on March 17, was assigned to SANDEN Corp. (Isesaki, Japan).

"Heat exchanger" was invented by Akira Kaneko (Isesaki, Japan), Naotaka Iwasawa (Isesaki, Japan) and Akihiro Fujiwara (Isesaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchanger includes a pair of headers, and a plurality of heat exchanger tubes stacked between the pair of headers. Each of the headers includes header members each having a gutter-shaped cross section and including an open part and a bottom part. The header members are stacked in a staking direction of the heat exchanger tubes in such a way that the bottom part of one header member closes the ...