Degree in Law, Tokyo Imperial University, 1941.
Formerly with Tokyo Koatsu Company. Member Nagasaki Prefectural Government, 1951—1958. Past bureau director.
Member Japanese House of Representatives, since 1958. Parliamentary vice minister Economic Planning Agency, 1963—1967. Parliamentary vice minister finance, 1967—1974.
Director general, 1974, 1976. Minister of state for economic planning, 1974—1976. Minister foreign affairs, 1986—1987.
Member Liberal Democratic Party, Japan. Former deputy secretary-general and chairman Research Commission on Tax Systems and Special Research Committee on International Economy. Chairman Council on Anti-Monopoly Problems, 1974—1976.
Married Kyoko Kuranari.