Deflection amount estimating device, robot control device and method of estimating amount of deflection

Driving device and detecting device

Work piece processing device with servo-elastic actuator system with compliance elastic member and weight compensation elastic member

Piezoelectric drive device, driving method thereof, robot, and driving method thereof

Motor controlling apparatus for suppressing vibrations

Control device of power transmission device and method of setting parameters in a power transmission device

Apparatus and method for determining deformation speed of elastic member, and actuator

Control device for power device

Tailstock control device

Twisting wire actuator

Method for changing force control gain and die cushion control apparatus

Control device for a die cushion mechanism

Controller for die cushion mechanism