- 2017 - 2020 中・古生代放散虫生層序とU-Pb年代の統合:年代尺度としての確立と応用
- 2015 - 2018 Radiolarian evolution inferred from form and function
- 2014 - 2017 Evolution of Permian island arc in the Kurosegawa Belt based on petrology of clastics
- 2014 - 2017 Depth distribution of extinct radiolarians estimated from the comparison between fossil assemblages from shallow and deep-water sediments and morphological convergence
- 2011 - 2012 Radiolarian extinction event in the Middle Paleozoic
- 2009 - 2011 Multi-scale approach for structural design : from evolution of marine plankton with shell to design of space structures
- 2008 - 2011 Was there the "Mongol-Okhotsk Ocean?"-On tectonic evolution of Eurasian Continent-
- 2007 - 2008 Middle Paleozoic geologic evolution of the western Panthalassa margin solved by the Kurosegawa terrane
- 2003 - 2005 東アジアの前期〜中期古生代珪質微化石生層序帯の構築と古生代地質体の起源
- 2001 - 2002 飛騨外縁帯古生界の層序およびオルドビス紀〜デボン紀放散虫の分類・化石層序
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