Senior Research Fellow of the Danish Center for Hadal Research (HADAL) of South Denmark University, Satellite Office at Tokyo University of Marine Science and Technology, Tokyo; and Adjunct Scientist of the Department of Earth Sciences, Waseda University, Tokyo, Japan.
Born in Tokyo, Japan, in 1948.
B.S., Geology, Tohoku University (1971);
M.Sc Geology and Paleontology, Tohoku University (1973);
D.Sc. Geology and Paleontology, Tohoku University (1976);
Postdoc researcher at the University of Tokyo (1976-78);
Research Associate, Lecturer, Associate Professor, and Professor at Graduate School of Science, Shizuoka University (1978-2002);
Adjunct Professor at the Graduate School of the University of Tokyo (1999-2001); Program Director / Director of Earth Science Research and Biogeoscience Institutions at Japan Agency for Marine-Earth Science and Technology (2002-2016);
Professor by special appointment of Tohoku Ecosystem-Associated Marine Sciences at Tokyo University of Marine Science and Technology (2016-2021);
Senior Research Fellow of Danish Center for Hadal Research (2020- present);
Adjunct Scientist of Department of Earth Sciences, Waseda University (2021- present).
My research goals are to understand the evolutionary biology and adaptive ecology of marine eukaryotic microbial lives and their relation to the geologic evolution of the Earth. For this purpose, I use both geological and biological approaches. In particular, I have actively introduced experimental methods. Up to the present time, I have published more than 275 papers. The Palaeontological Society of Japan awarded me the Yokoyama Medal in 2010, the Cushman Foundation for Foraminiferal Research awarded me the 2016 Joseph A. Cushman Award and Japan Geoscience Union elected me the 2019 JpGU Fellow in recognition of this scientific output.
In parallel to my purely scientific activities, I have taken on a variety of service responsibilities at both domestic and international levels.
President of the Palaeontological Society of Japan (2005-2007); Council member / Member of Science Council of Japan attached to the Cabinet Office of Japan (2005-present); Section President / Founder President of Biogeosciences, Japan Geoscience Union (JpGU) (2009-present); Representative of the Union of Japanese Societies for Natural History (2012-2018); Co-project Leader, Tohoku Ecosystem-Associated Marine Sciences, MEXT supported research project (2012-2021).
At a global level:
Member of the Science Planning Committee and Science Advisory Structure Executive Committee, of the Integrated Ocean Drilling Program (2004-2011); Councilor and vice-President of the executive committee of the International Paleontological Association (IPA) (2006-2018); Associate editor of EGU journal, Biogeosciences (2010-present) and Executive Committee of the International Union of Geological Sciences as Treasurer (2016-present).