ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,021, issued on May 6, was assigned to Honda Motor Co. Ltd. (Tokyo).

"Control device and work machine" was invented by Yuki Matsui (Wako, Japan), Hideaki Shimamura (Wako, Japan) and Satoshi Onodera (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control device for executing travel control of a self-propelled work machine, comprising a turning unit that turns the work machine such that the work machine travels inside a boundary of a work region, an evaluation unit that evaluates complexity of a shape of the boundary in the work region, and a changing unit that changes a turning mode of the work machine when the work machine is turned based on ...