*Joint researcher of National Museum of Ethnology, Japan, Apr 1997- Mar 1999.
* Committee member of the editorial boad of 12th Geographical Literature Inventory in the Human Geographical Society of Japan, Jan 2001 – Jul 2007.
* Committee member of the plan organizing of Public seminar in the Human Geographical Society of Japan, Nov 2002 – Oct 2003.
* Joint researcher of Reseach Institute of Humanity and Nature, Japan, Jul 2007- present.
* The Association of Historical Geographers in Japan 2006 local organizer, Aug 2005 – Jun 2006.
* Committee member of the editorial boad of 13th Geographical Literature Inventory in the Human Geographical Society of Japan, Jan 2001 – present.
* Committee member of the attendant of Historical Geography research Group in the Human Geographical Society of Japan, Nov 2007 – Oct 2011.
*Committee member of the editorial boad of the Human Geographical Society of Japan, Nov 2008 – Oct 2010.
* Joint researcher of Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies, Japan, Apr 2010- 2014.
* Committee member of the editorial boad of the Historical Geographical Society of Japan, June 2017 – June 2019.