ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,480, issued on April 14, was assigned to PALOMA Co. LTD. (Nagoya, Japan).

"Gas distribution unit and water heater" was invented by Yusuke Kakizaki (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas distribution unit includes a main flow passage and a plurality of distribution flow passages that branch from the main flow passage and supplies a fuel gas to each of groups of a plurality of nozzles. A main body includes a main depressed portion that forms the main flow passage, a plurality of depressed portions that form the respective distribution flow passages, and fuel gas inlets provided at upstream ends of the respective depressed...