April, 1998-March, 1999
Research Fellow of the Japan Society for the Promotion of Science (JSPS) (DC2)
Department of Material and Life Science
Gradute School of Engineering, Osaka University
April, 1999-October, 1999
Research Fellow of the Japan Society for the Promotion of Science (JSPS) (PD)
Department of Material and Life Science
Gradute School of Engineering, Osaka University
November, 1999-December, 1999
Research Resident of Japan Food Hygiene Association
Division of Organic Chemistry, National Institute of Health Sciences (NIHS)
Ministry of Health and Welfare
January, 2000-December, 2000
Domestic Research Fellow of the Japan Science and Technology Corporation (JST)
Division of Organic Chemistry, National Institute of Health Sciences (NIHS)
Ministry of Health and Welfare
January, 2001-March, 2002
Domestic Research Fellow of the Japan Science and Technology Corporation (JST)
Division of Organic Chemistry, National Institute of Health Sciences (NIHS)
Ministry of Health, Labour and Welfare
April, 2002-March, 2006
Researcher, Redox Regulation Research Group
Research Center for Radiatoin Safety
National Institute of Radiological Sciences (NIRS)
April, 2006-March, 2011
Senior Researcher, Radiation Modifier Team
Heavy-Ion Radiobiology Research Group
Research Center for Charged Particle Therapy
National Institute of Radiological Sciences (NIRS)
April, 2011-March, 2016
Senior Researcher, Radio-Redox-Response Research Team
Advanced Particle Radiation Biology Research Program
Research Center for Charged Particle Therapy
National Institute of Radiological Sciences (NIRS)
April, 2016-June, 2018
Principal Researcher, Quantitative RedOx Sensing Team (QRST)
Department of Basic Medical Sciences for Radiation Damages
National Institute of Radiological Sciences (NIRS)
National Institutes for Quantum and Radiological Science and Technology (QST)
July, 2018-March, 2019
Senior Principal Researcher, Quantitative RedOx Sensing Team (QRST)
Department of Basic Medical Sciences for Radiation Damages
National Institute of Radiological Sciences (NIRS)
National Institutes for Quantum and Radiological Science and Technology (QST)
April, 2019-March, 2021
Senior Principal Researcher, Quantitative RedOx Sensing Group
Department of Basic Medical Sciences for Radiation Damages
National Institute of Radiological Sciences (NIRS)
Quantum Medical Science Directorate
National Institutes for Quantum and Radiological Science and Technology (QST)
April, 2021-September, 2021
Group Leader, Quantum RedOx Chemistry Group
Institute for Quantum Life Science (iQLS)
Quantum Life and Medical Science Directorate (QLMS)
National Institutes for Quantum and Radiological Science and Technology (QST)
October, 2021-March, 2022
Group Leader, Quantum RedOx Chemistry Group
Institute for Quantum Life Science (iQLS)
Quantum Life and Medical Science Directorate (QLMS)
National Institutes for Quantum Science and Technology (QST)
April, 2022-March, 2024
Team Leader, Quantum RedOx Chemistry Team
Institute for Quantum Life Science (iQLS)
Quantum Life and Medical Science Directorate (QLMS)
National Institutes for Quantum Science and Technology (QST)
April, 2024-present
Team Leader, Quantum RedOx Chemistry Team
Quantum Life Spin Group
Institute for Quantum Life Science (iQLS)
National Institutes for Quantum Science and Technology (QST)

April, 2009-September, 2009
Part-time Instructor, Graduate School of Pharmacy, Keio University
December, 2010-March, 2011
Visiting Professor, Graduate School of Engineering
Shibaura Institute of Technology
April, 2011-March, 2012
Part-time Instructor, Graduate School of Pharmaceutical Sciences, Kyushu University
April, 2011-March 2021
Visiting Professor, Graduate School of Engineering and Science
Shibaura Institute of Technology