ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,256, issued on June 17, was assigned to MITSUMI ELECTRIC Co. LTD. (Tokyo).
"Control device and vibration presenting apparatus" was invented by Toru Dan (Tokyo) and Thi Hong Thu Nguyen (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a control device controlling an electromagnetic actuator that drives an operation device, supported in an elastically vibratable manner by an elastic support part, in one direction of a vibration direction of the operation device to vibrate. The control device includes a circuit that applies a main driving signal to a coil of the electromagnetic actuator to start vibration of the operation device in resp...