1994.08-1998.03 Assistant, Department of Mathematics, Tokyo Institute of Technology 1998.04-2006.09 Assistant, Graduate School of Science and Engineering, Tokyo Institute of Technology 2006.10-2007.03 Associate Professor, Graduate School of Science and Engineering, Tokyo Institute of Technology 2007.04-2016.03 Associate Professor, Graduate School of Science and Engineering, Tokyo Institute of Technology 2016.04-2017.03 Associate Professor, Department of Mathematics, Tokyo Institute of Technology 2017.04- Professor, Graduate School of Economics, Hitotsubashi University |