- Oguiso 60, ( Nov 2023)
- Nagoya Birational Geometry, ( Oct 2023)
- Cambridge--Tokyo Algebraic Geometry workshop 2018 Cambridge, (3--4, Dec 2018)
- London-Tokyo Workshop In Birational Geometry II, Imperial College London (5--6, Dec 2018)
- London-Tokyo Workshop In Birational Geometry-- (5/29--6/1)
- Tambara Summer School--特異点の正規化体積とα不変量-- (7/28--8/1)
- Higher dimensional algebraic geometry University of Tokyo, March 12--16, 2018
- Tambara Summer School--Bridgeland安定性と壁越え-- (8/21--8/25)
- The 2nd Higher dimensional algebraic geometry Echigo Yuzawa symposium (Feb. 13-17, 2017)
- Cambridge--Tokyo Algebraic Geometry workshop 2017 (March. 16-17, 2017)
- Tambara Summer School--Rationality problem and Birational Geometry of Fano varieties-- (7/30--8/3)
- Tokyo-Princeton algebraic geometry conference ,May 7-10, 2016(With Professors Yujiro Kawamata, János Kollár, and Zsolt Patakfalvi)
- Algebraic Geometry in East Asia 2016, 18th-- 22nd Jan. 2016 (one of the local organizers)
- Younger generations in Algebraic and Complex geometry IV (one of the organizers), 11th Jan.--15th, Jan.2016
- Cambridge--Tokyo miniworkshop (with Professor Caucher Birkar), 23rd, Nov.2015
- Kinosaki Algebraic geometry conrefence (with Professors Akira Ishii and Nobuyoshi Toakahashi), 19--23, Oct.2015
- Tambara Summer School 2015 (with Professors Yujiro Kawamata, Masanori Kobayashi, Natsuo Saito, Kaori Suzuki)
- Younger generations in Algebraic and Complex geometry III (With Tokauzo Okada, Hisanori Ohashi, Kiwamu Watanabe), 6th Jan.--10th, Jan.2014
- Mini workshop on birational geometry, 21st and 22nd November 2013 (with Professor Yujiro Kawamata)
- Birational geometry and singularities in Tokyo (with Professors Yujiro Kawamata and Shunsuke Takagi)
- Tambara Summer School 2013 (with Professors Yujiro Kawamata, Masanori Kobayashi, Natsuo Saito, Kaori Suzuki)
- Topics in Higher Dimensional Algebraic Geometry( I just had helped as collaborator)
- Tambara Summer School 2012 (with Professors Yujiro Kawamata, Masanori Kobayashi, Natsuo Saito, Kaori Suzuki)
- Japanese-Spanish Workshop (with Professor Paolo Cascini)
- Workshop on birational geometry (with Professor Yujiro Kawamata)
- Conference: Higher Dimensional Algebraic Geometry (in honour of Professor Yujiro Kawamata's sixtieth birthday) [I just helped]
- Younger generations in Algebraic and Complex geometry II (With Professor Chikashi Miyazaki, Tokauzo Okada, Hisanori Ohashi, Kiwamu Watanabe)

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