Ikeda graduated from the mathematics department of Osaka University in 1948. He received a Ph.D. degree with his thesis ""On Absolutely Segregated Algebras"" in 1953, and was appointed associate professor in 1955. He pursued scientific research at the University of Hamburg in Germany, under the supervision of Helmut Hasse (1898–1979) between 1957–1959. On a suggestion from Hasse, he went to Turkey in 1960 and landed at Ege University in İzmir. In 1961, he was appointed a foreigner specialist in the Faculty of Science at the same university.