ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,763, issued on May 13, was assigned to Yanmar Power Technology Co. Ltd. (Osaka, Japan).
"Engine device" was invented by Yoshiyuki Sandou (Osaka, Japan), Hiroaki Naganawa (Osaka, Japan) and Kazuma Sugimoto (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case...