ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,892, issued on Dec. 9, was assigned to IHI Corp. (Tokyo).

"Coupling angle detection device for combination vehicle, combination vehicle, and coupling angle detection method for combination vehicle" was invented by Yoshio Katsuki (Tokyo) and Munehiko Maeda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coupling angle detection device acquires a shape information of a target member having a prescribed shape and installed in a first vehicle by a shape information acquisition unit installed in a second vehicle and detects an angle formed by a direction specified based on a prescribed condition from the acquired shape information of the target me...