Ippei Yasuyo

Ippei Yasuyo was a swordsmith active in the mid-Edo period in Satsuma Province (present-day Kagoshima Prefecture). A central figure in the Satsuma domain's swordsmith community, he specialized in the bold jigane and nie-heavy hamon characteristic of the Satsuma tradition. His steel displays the broad itame surface and rich jinie typical of Satsuma work; the hamon, based on gunome and notare, is vigorous and thickly covered in coarse nie, conveying both the robustness of a practical blade and dramatic artistic power. As a domain swordsmith supplying blades to numerous Satsuma samurai, he is evaluated as a swordsmith who contributed to elevating the reputation of Satsuma swords during the Bakumatsu period. Signed works bearing the signatures "Satsushū-jū Yasuyo" and "Ippei Yasuyo" have been confirmed, with multiple surviving examples in Satsuma collections.