Iemori (家守) is recorded in the as a smith of the Yoshikage line (Yoshikage-) within the school of Province. Reference works treat the first generation as a swordsmith of the group active around the Gentoku era (1329–1331); however, works that can be regarded as those of the first generation have not been encountered. Thereafter, from the period through the late period, several smiths succeeded to the name. Those bearing dates from Koryaku (1379–1381) through Oei (1394–1428) are regarded as the third generation and are counted among the group of swordsmiths collectively referred to as the — a customary designation for smiths of the later period whose work does not fall within the specific lineages of Kanemitsu, Motoshige, or Nagashige. Iemori stands alongside fellow smiths such as Hidemitsu, Mitsuhiro, and Nariie, and his dated works are concentrated in the single-digit years of Oei, spanning from the later period into the early period.
Iemori's typically present a slender build with thick , deep , and or — features that clearly display the period characteristics of the late to early Oei transition. Several examples exhibit marked and an archaic air in their . The is characteristically mixed with , tending toward , with fine and dark -like lines entering the ground; areas of -like texture intermingle, and stands out. The combines a variety of elements — , , , , and occasionally -like feeling — yet overall forms a small-patterned, somewhat subdued () composition. The temper is predominantly with , containing , , and at times fine and . The commonly enters in or tends toward with . While the workmanship resembles that of the Kanemitsu lineage, it does not reach the level of accomplishment — a defining observation that the has consistently applied to the group as a whole.
Iemori's significance lies in the documentary value of his dated works, which constitute precious material for the study of smiths active during the critical transition from the to the early period. His in particular preserve original tang forms with characteristically small, finely chiseled long signatures placed close to the , providing important evidence of workshop practice. The and together clearly manifest the characteristics of the group, making his best pieces typical and representative examples of this school. Among works of the type, blades showing particularly fine forging with a bright and clear demonstrate that Iemori was capable of excellent workmanship, and those retaining thick with favorable -oki convey a stout, substantial presence in hand despite their slender proportions.