Kaneyoshi (兼吉) stands as the leading figure of the Zenjō lineage within the Seki smithing tradition of Province. According to transmitted references on signatures, the founder is said to have originally been from Yamato Province and to have been either the individual as, or the son of, Kaneyoshi (手掻包吉). The earliest dated works place the first generation at the very end of the period, with a bearing a Kōō 1 inscription, and thereafter several generations succeeded to the name through the period and even into the shinshintō era. Among these, the Ōei-period works are those that leave the finest examples.
Kaneyoshi's customary style excels in , often mixed with small , rendered in a -dominant temper where the tends toward a tight, well-contained appearance. The characteristically presents with a slight flowing character and mixed , upon which attaches and a whitish stands out. The typically forms , at times exhibiting . Many works in form show a high and a somewhat slender build, presenting an elegant with deep . In the -lineage , the forging displays mixed with flowing and fine activity of and , clearly manifesting a Yamato temperament in both and .
Within the broader Seki group, Kaneyoshi's work possesses a notably classical taste. The repeatedly observes that both and are bright and clear, and that his workmanship fully displays the highlights of his particular strengths. Ōei-dated pieces are further valued as documentary material, with certain representing the only known examples of their type. Whether working in the refined of the idiom or revealing the deeper Yamato temperament of his ancestral school, Kaneyoshi's oeuvre demonstrates a high level of skill and a consistency of manner that secures his place as a smith of enduring scholarly regard.