Okamoto was a Japanese artist noted for his abstract and avant-garde paintings and sculpture. He studied at Panthéon-Sorbonne in the 1930s, and made many great art works after WW II. He was a prolific artist and writer until his death, and has exerted considerable influence on Japanese society. He was deeply interested in mystery and the occult throughout his years in Paris, where he lived from 1930 to 1940. He majored in ethnology under Professor Marcel Mauss (1872–1950) at the Université Paris Sorbonne and focused on studying the rites among tribes in the zone of Oceania. Okamoto also attended the Collège de Sociologie Sacré organized by George Bataille (1897–1962), and he participated in rites which were carried out in silence and in the darkness of the woods near Saint-Germain in a faubourg of Paris, as a member of Acephale, a secret spiritual society. Okamoto was known as "the Japanese Picasso". There is a museum dedicated to his work near Tokyo
(cf Wikipedia.org)