- 2022/04 - 現在 Research and Education Faculty, Multidisciplinary Science Cluster Kuroshio Science Unit, Kochi University Distinguished Professor
- 2020/04 - 2022/03 Special Assistant to the President
- 2018/04 - 2020/03 Executive Director for Education and international affairs, Vice President of Kochi University Dean, Graduate School of Integrated Arts and Sciences
- 2016/04 - 2018/03 Kochi University
- 2012/07 - 2016/03 Kochi University
- 2008/04 - 2012/03 Dean, Graduate School of Kuroshio Science, Kochi University Research and Education Faculty, Multidisciplinary Science Cluster Kuroshio Science Unit
- 2004/04 - 2008/03 Kochi University Graduate School of Kuroshio Science (Doctoral Course)
- 1997/04 - 2004/03 Kochi University
- 1997 - 2004 Professor, Faculty of Science, Kochi University
- 2004 - - Professor, Graduate School of Kuroshio Science, Kochi University
- 2000/04 - 2003/09 Kochi University Councilor
- 1990/04 - 1997/03 Kochi University
- 1990 - 1997 Associate Professor, Faculty of Science, Kochi University
- 1982/04 - 1990/03 Kochi University
- 1982 - 1990 Research Associate, Faculty of Science, Kochi University
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日本藻類学会
, セルロース学会
, 日本電子顕微鏡学会
, 日本植物生理学会
, 日本植物学会
, 国際藻類学会
, 米国藻類学会
, The Botanical Society of Japan
, Japanese Society of Phycology
, Phycological Society of America
, International Phycological Society