Kōji Satō (佐藤 虹児 or 佐藤 虹ニ) was a renowned Japanese amateur photographer, particularly in the 1930s. Chōkichi Satō (佐藤 長吉) was born in Kumagaya, Saitama on 1 November 1911. From the age of thirteen Satō had a Thornton reflex camera; on his graduation from school he took photographs in his free time from his work in a bicycle wholesaler. He was given the nom de guerre Kōji Satō (佐藤 虹児) when young. From 1931 his photographs appeared in Camera and Shashin Geppō, and from 1933 in Shashin Salon. Satō's works were selected for the Golden Gate International Exposition in 1940. After the war, Satō changed the characters for Kōji from 虹児 to 虹ニ. An energetic and widely exhibited portraitist before and during the war, Satō turned his camera to his parents and his children after the war. Satō died of tuberculosis on 30 May 1955. Some of Satō's photographs are in the permanent collection of the Tokyo Metropolitan Museum of Photography, the Houston Museum of Fine Arts, and Shimane Art Museum.

Published photographs