Masanori is said to be a descendant of Yamashiro Sanjo Yoshinori. He initially was taught by his father Norimitsu after which he moved to Kyoto in Yamashiro to finish his training.

He was then hired by the Matsudaira Tadanao clan as a retainer and swordsmith in Echizen province where he remained for the rest of his working period. He produced many fine swords recognized for the cutting quality and beauty.

He was born in the late Koto times and worked in the Keicho Shinto period. Often said to be the second Golden Era of swordmaking, 1596- 1624.

He is ranked a Jo-Saku smith and Ryo Wazamono for the sharpness of his blades. This sword has NBTHK Hozon papers of authentication.