Fusamune is one of the principal smiths of the Odawara group, active in the late period. In addition to figures such as Tsunahiro who resided in , the tradition included makers living in Odawara -- Yasuharu, Yasukuni, and Fusamune -- who are collectively referred to as "Odawara ." Fusamune is also known to have worked collaboratively with the smith Kageso, with whom he was extremely closely connected; in their joint works, Kageso signed on the and Fusamune on the , suggesting that Kageso occupied the senior position.
The forging of Fusamune's works typically presents mixed with , comparatively tightly forged, with and ; in some pieces the texture shows a slight . His is characteristically a mixed with - and , in places becoming compound in character or showing ; the tends toward and is -dominant with slight , and appears in places. In his most flamboyant works, the temper incorporates , -style elements, , and dense to become full with abundant . The typically enters in with . What most distinguishes Fusamune, however, is his long-standing reputation for dense, meticulous, and refined : formal compositions rendered in within and , in , , and -- all executed with a precision praised as exceptional even within the broader tradition.
Fusamune's works encompass both and , often of somewhat compact proportions with -- a form characteristic of the Odawara group. The quality of his and consistently exhibits the distinctive traits of late work, while his blade carvings elevate his output to a level of special distinction. Within a body of work where angular-leaning and brilliantly flamboyant coexist, the precision of his carving remains the defining hallmark -- a mastery that, combined with sound forging and vigorous tempering, establishes Fusamune as one of the most skilled and recognizable smiths of the Odawara lineage.