ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,317, issued on Nov. 11, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Inattention warning system" was invented by Kohsuke Fujii (Toyota, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detection device configured to detect a viewing direction of a driver of a vehicle is provided. Viewing information is accumulated in a data accumulation unit. The viewing information includes a required viewing area and a required viewing time of the driver of the vehicle when the driver took a gaze off a road for a necessary visual check at each point where the vehicle travels. The viewing information accumulated in the data accumulation unit is acqui...