- 2021 - 2025 ヘテロローカリズム論からみた在留外国人の居住パターンに関する社会学的考察
- 2021 - 2025 Reconstruction of Japan's population geography in the era of depopulation and post-corona
- 2017 - 2021 Geographical investigation of Japan's ethnic enclaves based on spatial accumulation and heterolocalism
- 2015 - 2018 Feasibility study of policy to direct immigrants to peripheral parts of Japan experiencing depopulation
- 2012 - 2016 Comprehensive Study of Family Formation of Cross-cultural Couples in Japan Combining quantitative and qualitative analysis
- 2010 - 2014 Analysis on the latest situations both on newly merged municipalities and the non-merged municipalities of Heisei's pro-merger policy and total assessments on this policy
- 2014 - 現代日本における高齢者の居住地選択の現状と課題
- 2009 - 2012 Contribution of Japan's international migrants in times of population decline
- 2006 - 2009 Latest Situations of Super Municipalities established by the HeiseiActive Promotion of Municipal Mergers and the Reformation ofSptatial Regional Systems
- 2007 - 2008 国際地理学連合の活動に対する日本人地理学者の貢献に関する調査活動
- 2006 - 2008 Immigrants'Adaptive Strategy, Ethnoscape, and the Dynamics of Urban Structure in the Los Angeles Metropolitan Area
- 2006 - 2008 Geographical Studies in Factors and Impacts of International Marriage Increase in Contemporary Japan
- 2003 - 2005 Construction of new population geography in the age of population stagnation and decline
- 2001 - 2005 Development of the Economics of Complex Spatial Systems
- 2000 - 2002 Studies on regional population of Japan before 1960's
- 2000 - 2002 A comprehensive study of migration changes in Asian and Pacific region
- 2000 - 2001 Comparative studv of urban change due to disaster and enhancement to disaster-prevention system between two cities of Japan and U. S.
- 1999 - 2001 A Comparative study for integration on the characteristics and dynamism of the regiol consistibe of small towns and the dispersed settlement
- 1997 - 1999 An international comparison of migration based on the adjustment procedure
- 1996 - 1999 SELF-ORGANIZATION AND STRUCTURAL CHANGE IN SPATIAL ECONOMY
- 1996 - 1998 Comparative and Comprehensive Study of Dynamics of Regional Systems
- 1995 - 1996 Research in Spatial Variation of Distance-decay Effect in Intra-metropolitan Migration
- 1995 - 1996 Reconstruction on the change of main road system in Japan
- 1994 - 1994 戦後日本における人口移動の変化に関する時系列因子異性分析
- 1993 - 1994 日米加3か国における人口移動の転換の同時性に関する要因分析
- 1987 - 1988 Regional Developments of Major Metropolitan Areas and Their Issues in developed and developing countries : With special reference to Japan
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