he is now global associate for energy security and sustainability at the institute for energy economics, japan ("eneken") in tokyo. he is also a professor at the graduate school of public policy, university of tokyo. he is also a fellow at the center on global energy policy at columbia university in new york where he has given lectures on subjects like post fukushima energy policy, the shale revolution and energy security, china energy and sustainability, and the integral fast reactor during frequent weekly visits to the columbia morningside campus each academic semester. he is a vocal advocate for advanced nuclear energy for japan and international cooperation between japan and the republic of korea to build the first commercial integral fast reactor in the world. on may 28, 2014 he hosted the global leader program for social design and management (gsdm) 15th platform seminar, the 79th public policy seminar at the university of tokyo titled "peaceful and safer use of nuclear power: role of integral fast reactor". his research paper on the role of the integral fast reactor was scheduled to be presented in the spring of 2015 in new york.