Saburō Hasegawa (長谷川 三郎, Hasegawa Saburō; 6 September 1906 – 11 March 1957) was a Japanese-born American calligrapher, painter, art writer, curator, and teacher. He was an early advocate of abstract art in Japan and an equally vocal supporter of the Japanese traditional arts (Japanese calligraphy, ikebana, tea ceremony, ink painting) and Zen Buddhism. Throughout his career he argued for the connection between East Asian classical arts and Western abstract painting.
Source: “Saburo Hasegawa”, English Wikipedia (CC BY-SA 4.0), excerpt