Electronic pen

An electronic pen, comprising:

• a tubular casing;
• a vibration transmitting member disposed within a hollow portion of the tubular casing and capable of transmitting vibration occurring in the vibration transmitting member to the tubular casing;
• a vibrator disposed on the vibration transmitting member;
• a pulse generator disposed within the hollow portion of the tubular casing and configured to generate a pulse signal which drives the vibrator;
• and
• a power supply circuit disposed within the hollow portion of the tubular casing and configured to supply power to the pulse generator,
• wherein,
• the vibrator includes a plurality of electrode pins planted on the vibration transmitting member and one or more wires formed of a shape memory alloy extended between two electrode pins among the plurality of electrode pins, and
• the one or more wires expand and contract to thereby vibrate when supplied with the pulse signal from the pulse generator through the electrode pins, and vibration of the one or mor wires is transmitted to the tubular casing via the electrode pins and the vibration transmitting member.