ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,024, issued on May 27, was assigned to NIDEC Corp. (Kyoto, Japan).

"Control device, drive device, electric power steering device, and control method" was invented by Shuji Endo (Kyoto, Japan) and Hiroyuki Ishimura (Kawasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control device obtains an assist torque of an electric power steering device based on a steering torque, compensates for the assist torque, varies an amount of change in a compensation amount based on the steering torque, and increases the compensation amount to cancel a disturbance of the assist torque as a frequency of a disturbance affecting the steering system increases....