- 2018 - 2022 A Historical Study on the succession planning in Japanese "Ie"
- 2016 - 2019 Empirical Research on the Labor Type Urban Migration and Family change in Postwar Japan : Focusing on 'Oyakata Kokata'
- 2013 - 2017 Transnational Marriage and Reformation of 'Local World' in Contemporary East Asia
- 2012 - 2016 The Formation of a Local Society through the Mobility of People and Social Negotiations among Communities in Large and Small Areas
- 2011 - 2012 Creation of Ideas and Theories on the 21st 'Transnational Marriage in East Asia': in the Perspective of Constructing 'East Asian Community'
- 2010 - 2012 A comprehensive Study of Life Principles of Female, Youth, and Elderly Citizens Living in the Agricultural, Forestry and Fishery Areas around the Rim of the Seto Inland Sea
- 2007 - 2010 Study on Basic Structure, Dynamics, and Sustainable Development of 'Local World' in East Asia
- 2007 - 2009 An empirical study on lives of women, young people and elderly people in rural areas in Seto inland sea and Chugoku mountainous
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