- 2017/04 - 現在 Shimane University Estuary Research Center Lecture
- 2016/03 - 2017/03 Shimane University Research Center for Coastal Lagoon Environment
- 2011/03 - 2016/02 Korean Research Institute of Geoscience and Mineral Resources Senior Researcher
- 2007 - 2015 April 2007 - Present: Visiting Researcher, Research Center for Coastal Lagoon Environment, Shimane University
- 2009/04 - 2011/02 Kochi Unversity Center for Advanced Marine Core Research Researcher
- 2008/03 - 2009/03 釜山大学BK21沿岸環境システム学 研究員
- 2009 - 2009 April 2009 - Present: Postdoc Fellows, Center for Advanced Marine Core Research, Kochi University
- 2007/03 - 2008/02 釜山大学海洋科学部門 研究員
- 2008 - March 2008 - February 2009: Researcher, BK21 Coastal Environmental System School, Pusan National University
- 2008 - January 2008 - December 2008: Short-term Researcher, Center for Advanced Marine Core Research, Kochi University
- 2005/08 - 2007/02 Shimane University Research Center for Coastal Lagoon Environments
- 2007 - March 2007 - March 2008: Researcher, Division of Earth Environmental System, Pusan National University
- 2005/04 - 2005/08 Kyushu University Graduate School of Sciences
- 2002/04 - 2005/03 Kyushu University Graduate School of Sciences
- 2005 - August 2005 - February 2007: Researcher, Research Center for Coastal Lagoon Environment, Shimane University
- 2005 - April 2005 - August 2005: Researcher, Graduate School of Earth and Planetary Science, Kyushu University