- 2023 - 2026 Digitalisation and social security law
- 2021 - 2025 社会保障と私的扶養の交錯と現代的課題
- 2018 - 2022 Analysis and Foundation of Older People Asset Management Institutions
- 2018 - 2021 Legal controls on "projects" of social security law
- 2016 - 2021 Interdisciplinary research on laws regarding support of persons in need.
- 2016 - 2019 Overcoming Population Decline, Earthquake Recovery and Vitalizing Local Economy
- 2015 - 2018 The legitimacy and limit of income conditions in the pension systems
- 2012 - 2015 Basic and Cross-disciplinary Study for the Reform of Inheritance Law
- 2012 - 2015 Comparative and Interdisciplinary Research on the Social Policies for Conviviality
- 2010 - 2011 The infiltration of contracts into social security law and its significance
- 2007 - 2009 Individualizations in pension system and changes of old age risk
- 2002 - 2003 Research of the legal structure of the measures for controlling public medical insurance costs
- 2000 - 2001 Research on current problems of Workers' Compensation Insurance Scheme
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