At the beginning of the Shinto period, a swordsmith of Chikuzen named Yoshisada claimed to be the 12th Nobukuni in linear descent from Yamashiro Nobukuni; the school which he established under the daimyo Kuroda Nagamasa (1568-1623) continued working locally until the end of the shogunate. Members of the school included Yoshitsugu, Yoshikane, Shigekane, Yoshimasa, Yoshisuke, Shigemune, Yoshikatsu, Yoshishige and Yoshimasa (Kanbun era, circa 1660). This second Yoshimasa is recorded as being the son of Yoshisada as well as the most accomplished of the family group. A number of his extant blades are relatively thick with shallow curvature, but he also excelled at yari and naginata.
Tokugawa Ieyasu rewarded Nagamasa for his services at the battle of Sekigahara (1600) by presenting him with a domain worth 523,100 koku of rice yearly at Fukuoka.