ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,925, issued on Sept. 2, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Vehicle system and vehicle" was invented by Kenji Kimura (Nisshin, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle system includes a warning device and at least one electronic control unit. The at least one electronic control unit is configured to present a light stimulus to a driver, and determine whether the driver is facing forward, determine whether the driver holds a steering wheel, and cause the warning device to perform a first warning when it is determined that the driver is not facing forward while the light stimulus is being presented. The first wa...