Toshiki Kaifu
Moriyama worked at the Ministry of Labor from 1950 to 1980. She was elected to the first of her three terms in the House of Councillors in 1980 and then to the House of Representatives for the first time in 1996. She headed the environment agency until 26 August 1989 when she was appointed chief cabinet secretary in the cabinet of Toshiki Kaifu. Moriyama replaced Tokuo Yamashita and became the first Japanese woman appointed to this post. She was dismissed after six months of tenure on 6 January 1990. Misoji Sakamoto succeeded her as chief cabinet secretary.