He has assumed numerous positions, including Representative of the Asia-Pacific Region of the Japan Overseas Development Corporation in 1993.
In 1996, he organized "Short Poem International Symposium" in Phuket Province, Thailand.
[2][3][4] He participated in the drafting of the Matsuyama Declaration[5] in 1999, and supervised the joint translation.
Today, he serves as a consultant for screening committees of these awards and prizes.
He currently works also as president of the Economic Research Institute for ASEAN and East Asia since June 2008 (his title was changed from Executive Director at June 5, 2015[9]) and visiting professor of Waseda University since April 2013 and visiting professor of Universitas Darma Persada since October 2013.