- 2019/04 - 現在 Meiji University
- 2004/04 - MEIJI University, Tokyo, Japan Graduate School of Governance Studies Professor
- 2004/02 - 2004/03 CLAIR
- 2000/04 - 2004/01 Council of Local Authorities for International Relations CLAIR-PARIS ( = Centre Japonais des Collectivites Locales = Japan Local Government Centre at Paris) Director-General
- 1999/10 - 2000/03 CLAIR ( = Council of Local Authorities for International Relations) Senior Adviser
- 1999/04 - 1999/10 Fire Defence Agency, Ministry of Home Affairs National Supreme Academy of Fire Service and Disaster Prevension President
- 1996/04 - 1999/03 WAKAYAMA Ken Government Deputy-Governor
- 1995/07 - 1996/03 Ministry of Home Affairs ( since 2001 : Min. of Internal Affairs & Communication), Japan Local Public Enterprises Division, Local Government Finance Bureau Director
- 1994/04 - 1995/06 Ministry of Home Affairs, Japan Parliament Liaison and Legal Matters Division, Minister's Secretariat Director
- 1992/04 - 1994/03 TOCHIGI Ken Government General Affairs (= Policy and Resources) Department Director-General
- 1992/01 - 1992/03 JFM Financial Affairs Department Deputy Director-General
- 1990/07 - 1991/12 JFM (= Japan Finance Corporation for Municipalities and Counties) Finance Division Director
- 1989/04 - 1990/06 Ministry of Home Affairs, Japan Regional and Local Policy Division, Minister's Secretariat Director of Regional and Local Policy
- 1987/04 - 1989/03 HIROSHIMA City Hall Bureau of Finance Director-General of Finance Bureau
- 1986/04 - 1987/03 HIROSHIMA City Hall Bureau of Strategic Policy and Coordination Deputy Director-General
- 1984/04 - 1986/03 Ministry of Home Affairs, Japan Local Government Loans and Bonds Division, Bureau of Local Government Finance Deputy-Director
- 1983/04 - 1984/03 Ministry of Home Affairs, Japan Policy Planning and Coordination Division, Minister's Secretariat Deputy-Director
- 1981/04 - 1983/03 OKAYAMA Ken Government Local Affairs and Regional Development Department Deputy Director-General
- 1979/09 - 1981/03 OKAYAMA Ken Government Municipal Affairs Division, General Affairs Department Director
- 1978/04 - 1979/08 NAGANO Ken Government Water Supply Division Director
- 1977/10 - 1978/03 長野県 総務部税務課 税務考査幹
- 1974/05 - 1977/09 (うち1975.07〜主査として在英=日本国政府派遣長期在外研究員)
- 1976/10 - 1977/05 The INLOGOV (Institute of Local Government Studies),University of Birmingham, U.K. Honorary Research Fellow
- 1975/10 - 1977/05 Univ. of Kent at Canterbury, U.K. M.A. in Local Government
- 1973/07 - 1974/04 自治省 消防庁防災課 事務官
- 1972/07 - 1973/06 広島県 総務部財政課 主任主事
- 1971/10 - 1972/06 広島県 総務部地方課 主事
- 1971/07 - 1971/09 Ministry of Home Affairs