ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,789, issued on May 13, was assigned to MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER LTD. (Sagamihara, Japan).

"Engine control device, engine control method, and program" was invented by Naoki Hashimoto (Sagamihara, Japan), Ko Takayanagi (Tokyo), Masataka Shiraishi (Sagamihara, Japan), Yuta Furukawa (Sagamihara, Japan), Yosuke Kitamura (Sagamihara, Japan) and Yuki Koyama (Sagamihara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an engine control device for controlling an opening degree of a valve adjusting a flow rate of an air-fuel mixture of an engine, wherein the opening degree is corrected based on an exhaust temperature ...