ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,761, issued on Feb. 25, was assigned to YANMAR HOLDINGS Co. LTD. (Osaka, Japan).
"Exhaust gas purification device and engine" was invented by Tsuyoshi Inoue (Osaka, Japan), Daisuke Morimitsu (Osaka, Japan) and Kohei Iwamoto (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exhaust gas purification device for purifying exhaust gas of nitrogen oxides includes: a catalyst that is provided in an exhaust pipe (exhaust passage) for transporting exhaust gas, discharged from an engine, in a predetermined exhaust direction, and promotes the reduction of the exhaust gas; and an injection nozzle that is provided in the exhaust pipe so as to be up...