He represented Japan as a governmental expert on the UN Panel on Missiles in April 2001 and in the UN Expert Group on Disarmament and Nonproliferation Education in July 2001.
Ta esindas Jaapanit valitsuse eksperdina ÜRO raketiteemalisel arutelul aprillis 2001 ning relvitustamise ja relvastuse leviku tõkestamise alase teavitamise ÜRO ekspertrühmas juulis 2001.