Toshimitsu Imai (b.1928 - 2002) was an influential 20th-century avant-grade Japanese artist, a key figure of the Art Informel movement. His early days were characterised by an 'ultra-complex structure' using strong colours and heavy brushstrokes. Transcending after the Informel to Ka-Cho-Fu-Getsu (flower, birds, wind, and moon) series, Imai expresses the beauties of nature indicative of his gentle and romantic sensitivity.