村山富市
He was appointed Head of the Environmental Agency in the cabinet led by Prime Minister Tomiichi Murayama on 14 August 1994. Miyashita succeeded Shin Sakurai in the post when the latter resigned from office due to his statements about the role of Japan in World War II. In August 1998, Miyashita was appointed minister of health and welfare in the cabinet headed by Prime Minister Keizō Obuchi. Then Miyashita was made chairman of the Liberal Democratic Party's tax panel.