- 2021 - 2024 移住植民地樺太の工業化と都市形成に関する研究
- 2013 - 2017 Wars and Border Shifting in Sakhalin Island in the First Half of 20th Century
- 2010 - 2014 Modern History of the Sakhalin Island (Karafuto), as a Borderland Colony: Wars, States and Regions.
- 2009 - 2012 Sakhalin-Karafuto in the history of Northeast Asia in the nineteenth-and twentieth-centuries
- 2009 - 2011 The bas ic research on the falling down process of the imper ial Japan after the termination of the World War Second
- 2008 - 2011 Global Sociological Study on Migration and Social Integration after the Fall of the Japanese Empire
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