Shigehisa (重久) was a swordsmith of the Fukuoka school active in Province during the early period, around the Bunryaku era (1234-1235). Traditional sword directories () place him within the Ko- lineage, the earliest phase of the celebrated tradition. His works occupy a transitional position between and early production, and the themselves acknowledge that distinguishing between these attributions on the basis of signature alone can prove difficult. A smith of the name, Shigehisa, is also recorded in the Senjuin school of Yamato Province, representing an entirely separate lineage among the Five Traditions; the two must not be confused despite sharing identical characters.
The Shigehisa's forging is a tightly knit or with conspicuous and thickly applied , hallmarks of early workmanship. His is typically -based with mixed and , accompanied by well-defined and , executed in . Within the temper line, and appear. The consistently finishes in with return. Though most surviving examples have been shortened (), they retain their characteristically slender with pronounced taper from to and a , preserving an archaic elegance. Occasional works display an unusually wide or carved , features noted as rare within production.
Signed works by Shigehisa survive in modest numbers. Examiners consistently remark upon the antique restraint of his workmanship, a quality that links his production to the oldest stratum of forging. One blade was formerly in the collection of Seto Yasutaro, a prominent Kansai collector of the Showa era, and is recorded in the Kozan . Across the surviving corpus, the refined integration of activity with subtly undulating elements produces a distinctive character of quiet, archaic depth.