Ukiyo-e artist and newspaperman. His surname was Ochiai and his given name Ikujiro; his painting surname was Utagawa, and he used the names Ikkeisai, Ikkeisai (written differently), Keisai, Chokaro, Sharakusai and Keiami. A pupil of Kuniyoshi Utagawa and a fellow pupil of Yoshitoshi Tsukioka, for a time he shared popularity with Yoshitoshi as an ukiyo-e artist. He is also known for his part in newspaper publishing, both as a newspaperman and as an illustrator.