ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,306, issued on Aug. 19, was assigned to HITACHI ASTEMO LTD. (Hitachinaka, Japan).
"Steer-by-wire type steering device" was invented by Hiroki Sonoda (Hitachinaka, Japan), Yoshiji Hasegawa (Hitachinaka, Japan) and Tomoaki Fujibayashi (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A steering device according to the present invention includes: a steering input device including a reaction force actuator that applies a steering reaction force to a steering operation input member; and a control device including a steering gear ratio change unit that changes a steering gear ratio in accordance with a vehicle speed, a reaction force actu...