- 2019 - 2023 民法から見た平成期日本の社会変動-法規範生成論と比較法社会論の観点からの考察
- 2018 - 2022 Analysis and Foundation of Older People Asset Management Institutions
- 2016 - 2020 Construction of a theory on civil law norms : for the citizons' rule formation by plural methods
- 2016 - 2019 An empirical and theoretical study to develop a basic theory of 21st century Consumer Law
- 2012 - 2015 Basic and Cross-disciplinary Study for the Reform of Inheritance Law
- 2012 - 2015 Evolution of East Asian Laws and Japanese Law
- 2011 - 2015 General Studies on Legal Education for Citizens
- 2008 - 2010 Research on the legal position of 'U-25 people'-autonomy at the 15-year-old, help to the 25-five?years-old
- 2004 - 2007 Skill-building for making a small hand-made institutions
- 2001 - 2005 ボーダレス化時代における法システムの再構築
- 2003 - 2004 Research on nonprofit or charitable organizations ---Its legal structure and regulatory framework
- 2001 - 2004 Study on French Code Civil as a Book
- 2001 - 2003 Construction of a soft urban private low
- 1993 - 1997 実定法の知識構造の解明
- 1993 - 1994 A Basic Survey of Literature for Comparative Sociology of Law between Asian Countries and Japan.
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