- 2024 - 2027 通史的陰陽道史料研究の新展開
- 2023 - 2027 天体景観への認知と祭祀および暦の生成に関わる考古天文学の展開
- 2021 - 2024 古代~近代陰陽道史料群の歴史的変遷と相互関係の解明
- 2019 - 2024 An Interdisciplinary and Comparative Approach to the Study of the Historicity of Disability: Reflections on Japan from a Comparative Historical Perspective
- 2020 - 2023 地域の災害伝承の解読に基づく災害リスクの再構築-福岡県耳納山麓を対象にしてー
- 2019 - 2023 The Study about The Texts of Onmyodo in Ancient and Medieval Japan
- 2019 - 2023 A research project to establish a research method for archaeology and ancient history based on collaboration with astronomy
- 2014 - 2018 Chronology of "Nihon Shoki" and national histories
- 2010 - 2013 日本古代の時間制度・観念と初期陰陽道に関する研究
- 2005 - 2013 天変地異の社会学
- 1996 - 2010 非文字知社会と中世の時間・暦・交通通信・流通に関する研究
- 1996 - 2010 平安貴族における遅刻と時間厳守の研究
- 1987 - Joint Research on Natural Phenomena in Pre-modern Japan
- 1987 - Philological research of the old Japanese histories by use of data of natural science
- 1986 - Social thought of ancient Japan
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