Miike denotes the name of a school of swordsmiths who resided in the Miike area of Chikugo Province. The founder is identified as the renowned master Denta Mitsuyo, celebrated as a distinguished smith of the late period; his representative work is the Odenta, transmitted in the Maeda family. However, among works bearing an authentic signature, none are known today apart from that single blade. "Mitsuyo" was not a single individual alone: thereafter, the name was successively borne from the period into the period, and later-generation works signed with this name are understood as products of smiths who inherited the tradition.
From the time of the Odenta onward, Miike workmanship shares traits common to early Kyushu production. The characteristically displays mixed with that flows conspicuously, tending toward , with adhering and presenting a distinctive "sticky" texture that appears, in a sense, very soft, inclining toward a whitish tone; is sometimes observed. The is predominantly in , with a showing a tendency, into which , , and enter. The is typically with , sometimes exhibiting . An individuality of the school can further be observed in its consistent preference for carving broad, comparatively shallow , executed with notable skill.
Despite the legendary status of the founding generation, the Miike school's later-period works display a traditional manner that preserves clear continuity with the earliest production. Whether dating to the late or extending into the period, these blades consistently manifest the school's characteristic forging, tempering, and carving conventions. Their workmanship is recognized by leading appraisers, with several pieces bearing attributions and by authorities such as Kochu and Kodon, affirming the enduring regard in which the Miike lineage has been held.