ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,884, issued on May 20, was assigned to NORITZ Corp. (Hyogo, Japan).
"Heat exchanger and water heater equipped with the same" was invented by Norihide Wada (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchanger and a water heater are provided. The heat exchanger is provided with an auxiliary member including a trunk pipe joint portion joined to a trunk pipe and an extension portion extending from the trunk pipe joint portion toward a plurality of fins. The plurality of fins is provided apart from a sidewall portion so as not to directly contact the sidewall portion of a case, the extension portion of the auxiliary member includ...