Tamekiyo is an early- swordsmith of the Fukuoka school, working in and known today only by his two-character signed . The enters his name in several places, under , Fukuoka , Karakawa and , but the published sources observe that among surviving signed work nothing reads as other than , that 'no extant signed piece is seen except those judged of the school', so every authenticated Tamekiyo is placed there. His dating is unsettled, given as the Kenpō era of about 1213 to 1219 or the Tenpuku era of about 1233 to 1234, and because the signatures are all two-character with no dated example among them, the published sources leave a firm placement to later study.
In most respects his work does not separate from that of his contemporaries, and the published sources locate his one personal tell in a single feature of the temper: he shows, from time to time, a , a patch of flaring low at the base, and it is there that 'his distinguishing feature is found'. The flaring base-temper is what the published commentary uses to separate one of the related prewar as rather than , so the carries weight in his attribution out of all proportion to its size.
The shape is a strong, wide-bodied with the running high at the waist and carried on toward the point, standing at the base and the short or medium, the dignified bearing of the early . Over a of , well packed on the finest blade and running into a little elsewhere, lie and fine , and a high, vivid gathers in the dark band, toning here and there to a . The temper is built in two registers, the lower half a small-patterned with and pointed , the upper half a with mixed in, and entering well, worked almost wholly in with a little gathered, and and running in places. The goes straight to a on the front and turns back from a small on the reverse, and a , on one blade with a , is carved through.
The degree of flamboyance varies across the small group that survives. The keeps the quieter two-register construction, while the blade is, in the words of the published sources, 'comparatively flamboyant in workmanship among the several of this name', its lower half a with worked into something showier. Three closely related signed designated Bijutsuhin before the war differ somewhat in make but agree in signature, and the published sources hold that the one whose is most prominent is the of the three, the reading by which the school claims him.
Among the early Fukuoka hands he stands beside Norimune and the manner of the school's first years, before the full-size flamboyant of its mid- prime. The published sources rank his finest signed among the superior work of that early period and tie it by style to the Bijutsuhin Tamekiyo of closely matching construction, judging the best of his blades a piece that 'manifests the high level of this smith's skill'.
The Fujishiro appraisers rate him at the jō-jō level, and the record of his survival is slight: a handful of designated works, among them two ranked Important Cultural Property and one , with the prewar Bijutsuhin beside them. Of his recorded whereabouts, blades are held in the Kurokawa Institute of Ancient Cultures and at Atsuta Jingū, and one of the signed descended through the Mizuno house, the of , who 'received it from the shogunal house'. These are designated cultural property and long-held heritage, not blades that come to market; a signed Tamekiyo in private hands is among the rarer things a collector of early could hope to encounter, and one appears, when it does, only with patience.