- 2024/04 - 現在 Institute for Radiological Science, National Institutes for Quantum Science and Technology Human Resources and Networking Section, Department of Co-creation Promotion Section Manager
- 2023/10 - 現在 Associate Member of the Science Council of Japan
- 2023/04 - 現在 Part-time lecturer at Ibaraki Prefectural University of Health Sciences
- 2014 - 現在 Part-time lecturer at Hiroshima University Graduate School
- 2013 - 現在 Part-time Lecturer at Gunma University Graduate School
- 2021/04 - 2024/03 National Institutes for Quantum and Radiological Science and Technology Human Resources Development Center Section Manager
- 2019/04 - 2021/03 National Institutes for Quantum and Radiological Science and Technology (QST) Human Resources Development Center, National Institute of Radiological Sciences (NIRS), Quantum Medical Science Directorate Section Manager
- 2016/04 - 2019/03 National Institutes for Quantum and Radiological Science and Technology (QST) External Dosimetry Team, National Institute of Radiological Sciences (NIRS) Team Leader
- 2011/04 - 2016/03 National Institute of Radiological Sciences (NIRS) Medical Exposure Research Promotion Section, Medical Exposure Research Project Head
- 2008 - 2013 Part-time lecturer at Chiba University
- 2009/04 - 2011/03 National Institute of Radiological Sciences (NIRS) Radiological Protection Section, Research Center for Charged Particle Therapy Head
- 2006/04 - 2009/03 National Institute of Radiological Sciences (NIRS) Radiological Protection Section, Research Center for Charged Particle Therapy Senior Researcher
- 2003/10 - 2006/03 National Institute of Radiological Sciences (NIRS) Research Center for Charged Particle Therapy Senior Researcher
- 1998/04 - 2003/09 Oita University of Nursing and Health Sciences Laboratory of Environmental Sciences Assistant
- 1988/01 - 1989/04 The Institute of Public Health Department of Radiological Health Researcher
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THE SOCIETY FOR RISK ANALYSIS, JAPAN
, THE JAPANESE RADIATION RESEARCH SOCIETY
, JAPAN HEALTH PHYSICS SOCIETY
, JAPANESE SOCIETY OF RADIOLOGICAL TECHNOLOGY
, JAPAN RADIOLOGICAL SOCIETY
, JAPAN SOCIETY OF MEDICAL PHYSICS