- 2021/04 - 現在 Osaka University The Institute of Scientific and Industrial Research Visiting Professor
- 2018/07 - 現在 AIST, Japan. Electron Microscopy Group, Nano-Materials Research Institute Group Leader
- 2017/07 - 2018/06 Ministry of Economy, Trade and Industry Energy and Environment Innovation Starategy Office, Industrial Science and Technology Policy and Environment Bureau
- 2015/04 - 2017/06 AIST, Electron Microscopy Group, Nano-Materials Research Institute Group Leader
- 2013/04 - 2015/03 AIST, Japan Nanotube Research Center Team Leader
- 2012/04 - 2013/09 Senior Researcher, Nano-Characterization Team, NRC, AIST, Japan
- 2012/10 - 2013/01 CNRS, Lab. Physique des Solides, ORSAY, France Visiting Researcher
- 2008 - 2012/03 Researcher, Nanotube Research Center (NRC), AIST, Japan
- 2008 - 2010/03 Group Leader, ERATO, JST, Japan
- 2005 - 2008 Post-Doctoral Researcher, ERATO, JST, Japan
- 2004 - 2005 Researcher, a consortium among industry, government and academia, Kyoto Univ.
- 2002 - 2004 Lecturer, Institute for Chemical Research, Kyoto University, Japan