ウェブ2024年5月29日 · Tanto (短刀). Japanese swords under the blade length of 30cm (11.6 inches) are generally called TANTO. It was originally used as a supplemental weapon for Samurai on horseback, who used a pole weapon or long sword in the Kamaura-Muromachi period. Samurai aimed at an unprotected area of his enemy’s armor while …