Akira Kanayama (金山明 Kanayama Akira; 1924–2006) was a Japanese avant-garde artist and an early member of The Gutai Art Association. An active contributor to Gutai's exhibitions and performance events, Kanayama was one of the pivotal figures of the group. His artworks were characterised by witty experiments with unconventional materials such as toy cars and signal lights for level crossing. He left Gutai in 1965 with Atsuko Tanaka, whom he married later in the same year.
Source: “Akira Kanayama”, English Wikipedia (CC BY-SA 4.0), excerpt