Tantojutsu
Tantōjutsu (短刀術) is a Japanese term for a variety of traditional Japanese knife fighting systems that used the tantō, a short knife or dagger. Historically, many women used a version of the tantõ, called the kaiken, for self-defense, but the onna-bugeisha, or warrior women who were part of the samurai class, learned one of the tantojutsu arts to fight in battle.
Tantō with blunt wooden or plastic blades are used to practice martial arts. Metal blades can be used in more advanced training and in demonstrations. Modern styles that use tantō:
...
Wikipedia