Kanetomo is a name borne by several successive generations of smiths extending from the period into the period. The founder is regarded as one of the disciples of the first-generation Kaneuji, the celebrated Yamato-to- smith who transmitted - methods into Province. When Kaneuji's group of pupils later relocated from in to Naoe, they became collectively known as "Naoe ," and Kanetomo is counted among the representative artisans of this lineage. Reference works () record a Kanetomo active around the era (1368--1375) as a son of the first-generation Kanetsugu, and a further Kanetomo of Naoe active around the Oei era (1394--1428), indicating the name's continuity across multiple generations.
Kanetomo's characteristic workmanship centers on mixed with , with thickly adhering and frequent in the ground steel. His typically features rounded combined with executed in , producing a temper line in which the tends toward a tight, crisp quality. In his finer works, and appear within both and , lending abundant internal activity. When working in of broad, slightly elongated proportions with thin and shallow curvature, the pieces reflect the prevailing Enbun--Joji-era aesthetic. At least one signed survives as a designated Important Art Object, serving as a touchstone for attribution.
Among the Naoe smiths, Kanetomo is regarded as especially proficient in the effective combination of and tempers, which in his best work display a clear brilliance described as . His and demonstrate both the -influenced vigor of the parent lineage and a refinement of forging that distinguishes his output from the broader group. Signed examples remain scarce, lending particular scholarly value to works that can be securely attributed through workmanship alone.