1998.4.1-2002.3.31 Department of Physics, Faculty of Science, The Unuv. of Tokyo
2002.4.1-2004.3.31 Master course of Dept. Physics, Graduate School of Science, The Univ. of Tokyo
2004.4-2007.3 Ph.D. course of Dept. Physics, Graduate School of Science, The Univ. of Tokyo
2007.4.1-2010.11 Research Assistant Professor, IMRAM, Tohoku Univ.
2010.12.1-2011.1.31 Researcher, NICHe, Tohoku Univ.
2011.2.1-2012.8.31 Associate Professor, NICHe, Tohoku Univ.
2012.9.1-2014.3 Associate Professor, Kyushu Institute of Technology
2014.4- Professor, Nara Institute of Science and Technology
Picture with Astro-E2 (Suzaku) satellite.