Ukiyo-e artist. Son of Kikukawa Eiji of Omiya, a maker of artificial flowers in Ichigaya, Edo. His name was Toshinobu and he was commonly called Omiya Mangoro; he also signed Chokyusai. He was the founder of the Kikukawa school. Through his father, a pupil of Kano Tosha, and through his friend Totoya Hokkei, who had studied under Katsushika Hokusai, he learned the manner of both the Kano and the Hokusai schools; he studied the Shijo manner under Suzuki Nanrei. He was active in the Bunka and Bunsei eras (1804–1830). After the sudden death in 1806 of Kitagawa Utamaro, then at the height of his fame, Eizan began making bijinga in Utamaro’s manner, but his style gradually turned towards soft figures of women, refined in feeling and touched with transience. He devised the two-sheet vertical oban bijinga, setting a slender, graceful woman standing in the tall format. He spent his last years in Joshu, present-day Gunma Prefecture. Keisai Eisen was among his pupils.