- 2022 - 2026 Elucidation of variation in marine primary production and biogeochemical linkages between land and ocean in North Pacific Ocean during the Neogene
- 2022 - 2026 Elucidation of the variation in marine primary production and the land-ocean biogeochemical linkage in North Pacific Ocean
- 2020 - 2024 Development of GC-GC-IRMS
- 2019 - 2024 Large scale mapping of marine pollution risk using seabirds as a standardized sampling device
- 2019 - 2023 TCA回路の多様性とその起源の解明
- 2018 - 2023 Understanding of biochemistry of chlorophyll c to shed light on evolution of marine primary production over the Phanerozoic Eon
- 2019 - 2021 A new method for minimizing isotopic fractionation associated with derivatization of organic compounds
- 2018 - 2021 Presence and chirality of sugars formed in the early solar system: a new origin of biomolecule
- 2018 - 2021 Refinement of biomarker-based paleovegetation analysis, and its application to reconstruction of the paleovegetational variation in the northern Japan over the past 5 million years
- 2017 - 2021 Development of a highly sensitive method for stable isotope analysis of amino acids
- 2017 - 2019 Development of a methodology for measuring the energy transfer along food webs on aquatic-terrestrial mixed resources
- 2015 - 2018 A rapid derivatization method for measuring the stable isotope ratios of fatty acids in the study of biogeochemical cycles
- 2013 - 2017 Biogeosciences of sediment-water interface: comprehensive understandings of ecosystem functioning, dynamics and material cycles at sediment-water interface
- 2012 - 2016 Development of chiral-isomer specific isotope analysis of amino acids, for advances in studies for the interaction between life and organic compounds
- 2013 - 2015 A search of novel surrogates of sterols in anaerobic eukaryotes
- 2012 - 2015 Symbiosis drove foraminiferal evolution
- 2010 - 2012 Development of NMR application to Geo-metabolomics
- 2009 - 2012 Biotic history has accelerated under anoxic environments - Paradox of Foraminifera evolution can solve through field observation, laboratory culture and genomic analyses.
- 2009 - 2011 Development of multi-stable isotope analytical method of amino acids
- 2009 - 2011 Ecological roles of Xenophyophorean foraminifera in the deep-sea biological communities and early evolution of foraminifera
- 2008 - 2009 Development of enantiomer-specific isotope analysis (ESIA) of amino acids
- 2007 - 2008 Reconstruction of marine nitrogen cycle by compound-specific stable nitrogen isotope analysis of orga nic compounds
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