*Associate Professor, Okayama University of Science, April 2012 – present.

* Senior Research Scientist, Lake Biwa Museum, April 2007

* Research Scientist, Lake Biwa Museum, May 1996.

* Parttime lecturer of “Practice Geography”, Department of Geography, Ritsumeikan University, Apr 1999 – Mar 2000.

* Parttime lecturer of “Physical Geography”, Faculty of Tourism, Osaka Meijyo University, Aug 2004 – Aug 2005.

* Parttime lecturer of “Practice Archaeology ”, Faculty of Literature, Ryukoku University, Oct 2005.

* Parttime lecturer of “Physical Geography ”, School of Human Cultures,, University of Shiga Prefecture, Dec 2007- present.

* Parttime lecturer of “Environmental Changes in Shiga Prefecture and the world ”, University of Air, Jan 2009-Jan 2016.

* Parttime lecturer of “Physical Geography ”, Faculty of Literature, Okayama University, Sep 2016- present.