Inokuma Genichirō is a yōga (Western-style) artist, who ceaselessly experimented with innovative artistic expressions throughout his lifetime. As a student of the yōga artist Fujishima Takeji, Inokuma exhibited at important shows such as the Teiten (Imperial Academy of Fine Art Exhibition). With Koiso Ryōhei and other artists, Inokuma co-founded the Shinseisakuha-kyōkai artist group in 1936. In 1938 he travelled to France and studied painting under Henri Matisse. From 1955 to 1974, Inokuma based himself in New York, started working on abstract painting, and participated in a number of international exhibitions.