ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,869, issued on Sept. 15, was assigned to MINEBEA MITSUMI INC. (Nagano, Japan).

"Motor drive control device, motor unit, and motor drive control method" was invented by Naoyuki Wada (Nagano, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "To increase the stability of an operation when the driving of a stepping motor is started. A motor drive control device includes a control unit configured to generate a control signal (Sd) for controlling driving of a two-phase stepping motor, and a drive unit configured to drive coils of two phases of the two-phase stepping motor based on the control signal (Sd). The control unit has, as control modes, a firs...