Katsuhiro Yamaguchi
, Tokyo, Japan —

Katsuhiro Yamaguchi (1928–2018) was a pioneering Japanese artist, theorist, and educator whose interdisciplinary practice played a defining role in the development of postwar avant-garde and media art in Japan. Active across painting, sculpture, installation, video, design, writing, and collaborative experimentation, he consistently sought to expand the boundaries of artistic form and perception.
As a co-founder of the influential collective Jikken Kōbō in 1951 and later of the video collective Video Hiroba in 1972, Yamaguchi helped shape new relationships between art, technology, space, and communication. His work evolved from early vitrines and spatial constructions to video installations and media environments, always guided by a belief in art as an open, dynamic, and cross-disciplinary field.
Through his practice, teaching, and critical writings, Yamaguchi became a central figure in the emergence of Japanese media art and remains an essential voice in the history of experimental art in Japan.