|Shigetoshi Sato（ Shigetoshi Sato ）|
Born in 1944 (Shōwa 19)
He was charmed by a forging knife and study under swordsmith, Shigeyoshi Iwasaki of Echigo to 38 years old.
In 1992, He become Agency for Cultural Affairs authorization swordsmith. He work hard at the making a bttou-sword in a Hachioji training place.