HANDWRITING INPUT DEVICE

A handwriting input device configured to obtain hand-written data of an electronic pen on a coordinate detection surface of a coordinate input device by an electromagnetic induction effect of the coordinate input device and the electronic pen. The electronic pen includes a first resonance circuit including a coil, a capacitor, and a core, a mechanical pencil unit configured to perform writing on a paper sheet placed on the coordinate detection surface, and a writing pressure detecting portion configured to detect a writing pressure such that a part of the mechanical pencil unit is pushed by receiving the writing pressure applied to a lead projecting from a distal end of the mechanical pencil unit. The detection of the writing pressure causes the coordinate input device to obtain the hand-written data corresponding to a handwriting on the paper sheet while writing is performed on the paper sheet with the electronic pen.