Akasegawa Genpei was a pseudonym of Japanese artist Akasegawa Katsuhiko (赤瀬川克彦), born March 27, 1937 in Yokohama. He used another pseudonym, Otsuji Katsuhiko (尾辻克彦), for literary works. A member of the influential artist groups Neo-Dada Organizers and Hi-Red Center, Akasegawa went on to maintain a multi-disciplinary practice throughout his career as an individual artist. In 1986, Akasegawa and his collaborators, Terunobu Fujimori and Shinbo Minami, to announce the formation of a new group: Street Observation Society; In 1994, the Leica Alliance with contemporary artist Akiyama Yūtokutaishi and photographer Takanashi Yutaka; and in 1996, the Japan Art Support Group with art researcher Yamashita Yuji. He has had retrospective exhibitions at the Hiroshima City Museum of Contemporary Art, Chiba City Museum, and Oita City Museum. His work is in the permanent collection at Museum of Modern Art in New York. Artist Nam June Paik has described Akasegawa as “one of those unexportable geniuses of Japan.” He pass away on October 26, 2014, at the age of 77.