5. The 5th International Workshop "Geometry of Submanifolds and Integrable Systems", Takamatsu Symbol Tower, November 26 -- December 1, 2022.

4. 第14回GEOSOCKセミナー "Minimal surfaces and their Higgs bundles", Osaka Metropolitan University, July 29, 2022.

3.   "Differential Geometry and Integrable Systems" - Mathematics of Symmetry, Stability and Moduli -  (local organizer), Osaka City University, March 2 (Tue)- March 12 (Fri), 2021  March 1 -- March 14, 2022 (postponed due to COVID-19 concerns).

2.   The 27th Osaka City University International Academic Symposium "Mathematical Science of Visualization, and Deepening of Symmetry and Moduli" (local organizer), Osaka City University, March 4 - 9 , 2020 March 21--26, 2021 (postponed due to COVID-19 concerns).

1.   Mini-Workshop on Geometry and Mathematical Science (local organizer) Osaka City University, July 28--30, 2018.