松江市
Hosoda was born in Matsue, Shimane Prefecture on April 5, 1944. He graduated from the Law Faculty of the University of Tokyo, and worked at the Ministry of International Trade and Industry from 1967 to 1986, serving as Director of the Washington Office of Japan National Oil Corporation from 1983 to 1985, and as Director of the Price Policy Division in the Industrial Policy Bureau from 1985 to 1986.