- 2023/06 - 現在 Japan Association of Comparative Politics Auditor
- 2022 - 2023 Japanese Political Science Association Member, Committee on Annual Review
- 2017 - 2020 Japan Consortium for Area Studies Member, Board of Representatives
- 2017 - 2020 Institute of Developing Economies Chair of Editorial Board, Ajia Keizai (Asian Economies)
- 2019 - 2019 Japanese Political Science Association Member, Committe on Book Reviews
- 2018 - 2019 Japan Society for the Promotion of Science Member, Committee on Grants-in-Aid for Scientific Research
- 2015 - 2017 Japan Society for the Promotion of Science Member, Comittee on Grant-in-Aid for Scientific Research
- 2015 - 2017 Japan Association for Asian Studies Director
- 2011 - 2016 Institute of Developing Economies Editorial Board, Ajia Keizai (Asian Economies)
- 2014 - 2014 Japanese Political Science Association Member, Committe on Annual Review
- 2011 - 2013 Sumitomo Foundation Member, Committee of Grant for Japan-related Research Projects
- 2011 - 2012 Japan Association of Comparative Politics Member, Editorial Committee, the Annuals of JACP
- 2010 - 2011 Ministry of Foreign Affairs Chair, Committee on Philippine Assistance Program Evaluation
- 2010 - 2011 Japan International Cooperation Agency Member, Committee on Philippine Assistance Program
- 2010 - 2011 Japan Association of Comparative Politics Member, Program Committee of Annual Conference
- 2004 - 2011 Japan Association of Asian Studies Editorial Board, Asia Kenkyu (Asian Studies)
- 2008 - 2010 Institute of East Asian Studies, Keio University Research Collaborator
- 2008 - 2008 the World Bank Short Term Consultant
- 2007 - 2007 the World Bank Short Term Consultant
- 1999 - 2001 Institute of Developing Economies Editorial Board, Ajia Keizai (Asian Economies)
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American Political Science Association
, Japan Association for Asian Studies
, Japan Association for Comparative Politics
, Japanese Political Science Association