Shozo Shimamoto ( 1928 - ) is a Japanese Post-war painter, one of The Gutai Art Association's leading members. Shozo Shimamoto s works have been put up for auction numerous times, with realized prices greatly surpassing estimated prices, varying from 950.12 USD for Untitled in 2005 to a remarkable record 4570418.53 USD for Untitled in 2014 , based on the size and medium of the artwork.