Ichige Tokuchika was born in An'ei 6 (1777) and bore the common name Genzaemon. A retainer of the Mito domain, he first studied swordsmithing under the Mito smith Kume Nagatoku before traveling to Osaka, where he trained in the school of Ozaki Suketaka and brought his craft to full maturity. In Bunka 6 (1809), at the age of thirty-three, he was appointed an officially retained smith (kakae-kaji) of the Mito domain. He later received the honorary court title Omi no in Tempo 1 (1830) and died in Tempo 6 (1835). His working career thus spans roughly the Bunka through early Tempo eras, placing him among the most accomplished smiths active in the service of the Tokugawa branch house at Mito.
Tokuchika commanded a remarkably versatile working range. He is best known for large - tempered in a billowing toran manner inherited from his teacher Suketaka, and it is in this mode that his reputation principally rests. His toran- is distinguished by orderly, well-controlled shapes that do not collapse, with uniform grains that adhere evenly without unevenness and a that remains bright and clear. In addition, he produced works in a after the manner of Batetsu, as well as blades in a construction recalling the Osaka master Shinkai. Across all these modes the forging is characteristically tight , often with mixed and , upon which extremely fine, dense adheres thickly and fine enter with striking clarity. The is consistently deep, adheres well, and fine and appear throughout the temper. His typically proceeds straight and turns back in , frequently showing at the tip. Although many Bakumatsu-era smiths attempted the toran- style, Tokuchika demonstrates outstanding technique among them, and his works in the Shinkai manner are comparatively rare but no less accomplished.
Extant works by Tokuchika are comparatively few, yet those that survive consistently exhibit excellence in both and . The repeatedly note that his blades possess a refined of superior quality, with the tightly condensed and thickly adhering constituting forging of an especially high level. His signature habits evolved over his career: earlier works through the Bunka era are typically inscribed "Mito-ju Ichige Tokuchika kore," while those from the Bunsei era onward read "Suifu-ju Ichige Tokuchika kore." Several of his designated works also bear date inscriptions that provide valuable documentary evidence for dating his production. Whether working in the flamboyant toran mode or the restrained idiom, his blades are distinguished by the uniformity and brightness of the hardening and the clarity of the steel, qualities that mark him as a smith of the highest order within the late tradition.