Yasuo Sumi was born in 1925 in Osaka.

He took his doctor`s degree in economics at the University of Ritsumeikan in 1950.
He became a member of the Gutai group in 1955.

From the very beginning, he used the wired network as support of a way of painting. After the group had assimilated to the European Informal, he made paintings, where the paint was applied by a vibrator.