Hattori Hanzo (1542 - 1596), also known as Hattori Masanari, was a famous Samurai of the Warring States era. Born a vassal of the Matsudaira (later Tokugawa) clan, and served Tokugawa Ieyasu; he would later earn the nickname Oni-Hanzo, Hanzo the Demon, because of the fearless tactics he displayed in his operations.
Hanzo was an extremely skilled swordsman, tactician and spearman and fought his first battle at the age of 16, went on to serve at the battles of Anegawa (1570) and Mikatagahara (1572), but his most valuable contribution came in 1582, following Oda Nobunaga's death.
To this day, artifacts of Hanzo's legacy remain; the Tokyo Imperial Palace still has a gate called Hanzo Gate, and the Hanzo-mon subway line which runs from central Tokyo to the southwestern suburbs is named after the gate. Hanzo remains now rest in the Sainen-ji temple cemetery in Shinjuku, Tokyo. The temple also holds his favorite spears and his ceremonial battle helmet.
This Hattori Hanzo Koshirae is the reproduction of his best favorite sword, Ko Bizen Kanehira. The sand-casted, extra-reinforced zinc/aluminim alloy blade features the typical Kanehira's double Suguha Hamon. The Koshirae fitting is extraordinary. The Saya end features the extra big, barrel type O-jiri metal ornament and it has the traditional Tsuchime finish, that is, a hammered pattern design. The Fuchi/Kashira set is made of copper with Eboshi(formal headwear for court nobles in Japan) and has the Tsuchime finish as the O-jiri. With the Hanzo's fighting spirit in mind, the large metal Koiguchi reinforcement is also featured. The metal Koiguchi is made of copper and has the Tsuchime finish, too. Saya is black matte finish(Kuroishime).