- 2021 - 2026 Quantification of the climate-productivity-population history in Japanese archipelago by refinement of oxygen isotope dendrochronology
- 2018 - 2023 考古学データによるヤポネシア人の歴史の解明
- 2018 - 2023 Origin and formation of Yaponesians based on genome sequences
- 2017 - 2022 Reorganization of prehistorical structure of calendar age and evaluation of climate change effect in Japanese archipelago using tree ring oxygen isotope ratios
- 2017 - 2018 Reconstruction of calendar framework and evaluation of climatic impact on prehistorical Japanese archipelago using tree-ring oxygen isotope ratio
- 2013 - 2016 Basic research about formation of Japanese agricultural culture complex by central analyzing for plant, pottery and human bone
- 2012 - 2015 Studies of commencing time and provenance transition on bronzes in Japan and Korean Peninsula
- 2011 - 2014 Age determination of the human bones in the Three Kingdoms period excavated from the Kofun in the Korean peninsula by chemical analysis and carbon dating
- 2009 - 2011 Scientific studies on the manufacturing, trading and tradition of the source of ancient Japanese and Korean bronze objects
- 2006 - 2009 The Interaction and Transfer of Technology in Medieval East Asia
- 2004 - 2008 The Origin of the Farming in the Yayoi Period and East Asia: Establishment of High-Precision Chronology by Carbon 14 age Analysis
- 2003 - 2005 Multilateral Comparative Study on Introduction, Acculturation and Distribution of Bronze Culture in East Asia
- 2002 - 2004 The Development of Method and Studies for Historical Information Based on GIS
- 2001 - 2003 Establishment of high-precision chronology for Jomon and Yayoi periods
- 2000 - 2003 Comprehensive Study of Museum Education, Educator's Training, and Historical Exhibitions in the Time of Life-long Education
- 2000 - 2002 The Research and compilation of the ancient pictures in Japan
- 2001 - 歴史年代学
- 2001 - Historical chronology
- 1990 - 1990 農構開始期における土器組成の考古学的研究ー壷形土器の出現とその背影ー
- 生産と利用に関する歴史資料の多角的分析
- 歴史における戦争の研究
- 弥生時代成立の契機
- The Opportunity of the Formation of the Yayoi Period
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