2010 – 2014, Director-General, Office for Social Security Reform, Cabinet Secretariat
2008 – 2010, President, Health Insurance Claims Review & Reimbursement Services
2005 – 2008, Director-General of Social Welfare and War Victims’ Relief Bureau, Ministry of Health, Labor and Welfare (MHLW)
2002 – 2005, Director-General of Elderly Care Bureau, MHLW
1973 – Ministry of Health and Welfare (1981－1984, posted to social attaché in Sweden, 1987－1989 Director, Hokkaido Prefecture)
January 2012, Launched the Forum for Social Security Policy
April 2012 – Lectured on social security policy at the International University of Health and Welfare