- Geigle-Lenzing complete intersections and Orlov's Theorem (proceedings in Japanese), Proceedings of the 35th Symposium on Commutative Ring Theory (Kyoto, 2013).
- Geigle-Lenzing projective spaces and d-canonical algebras (proceedings in Japanese), Proceedings of the 46th Symposium on Ring Theory and Representation Theory (Tokyo, 2013).
- \tau-tilting theory (proceedings in Japanese), Proceedings of the 45th Symposium on Ring Theory and Representation Theory (Matsumoto, 2012).
- Higher-dimensional Auslander-Reiten theory (abstract, slide in Japanese), Lecture for Spring Prize of the Mathematical Society of Japan, Keio University, March 25, 2010.
- Introduction to cluster tilting in 2-Calabi-Yau categories (proceeding), Expansion of Combinatorial Representation Theory in Kyoto, October 08, 2008.
- Tilting mutation and Cluster tilting (slide in Japanese), Colloquium talk in Nagoya, July 09, 2008.
- Toward higher-dimensional analogue of Auslander-Reiten theory (abstract, slide in Japanese), Lecture for Algebra Prize of the Mathematical Society of Japan, Osaka, March 25, 2008.
- Cluster tilting for one-dimensional hypersurface singularities (slide), International Conference on Commutative Algebra in Yokohama, March 19, 2008.
- Cluster tilting theory (slide), Colloquium talk in Kyoto, December 05, 2007.
- Algebras and triangulated categories (slide1, slide2, proceedings in Japanese), 4th Seminar for Young Mathematicians in Kinosaki, February 21, 2007.
- Mutations in triangulated categories and rigid Cohen-Macaulay modules (slide), Workshop on Triangulated Categories in Leeds, August 2006.
- Cluster categories (proceeding in Japanese), 51st Symposium on Algebra in Tokyo, August 08, 2006.
- Toward higher-dimensional analogue of Auslander-Reiten theory (proceeding in Japanese), 50th Symposium on Algebra in Tokushima, August 03, 2005.
- Representation dimension of artin algebras, Proceedings of the 36th Symposium on Ring Theory and Representation Theory (Hirosaki, 2003). (dvi)
- Ringel-Hall algebras of hereditary orders (Japanese), Proceedings of the 6th Symposium on Representation Theory of Algebraic groups and Quantum groups (2003). (dvi)
- Representation dimension and Solomon zeta function (Japanese), Proceedings of the 5th Symposium on Representation Theory of Algebraic groups and Quantum groups (Osaka, 2002), Proceedings of the 24th Symposium on Commutative Ring Theory (Osaka, 2002). (dvi)
- Finiteness of Representation dimension, A proof of Solomon's second conjecture on local zeta functions of orders, Proceedings of the 34th Symposium on Ring Theory and Representation Theory (Maebashi, 2001), 21--26, 27--34.
- The relationship between representation-theoretic conditions and homological conditions for rings (Japanese), Proceedings of the 33rd Symposium on Ring Theory and Representation Theory (Osaka, 2000), 83--94. (dvi)
- Representation theory of orders (proceeding in Japanese), Proceedings of the 44th Symposium on Algebra (Tokyo, 1999), 51--61.
- Quadratic bimodule problem (Japanese), Proceedings of the 31st Symposium on Ring Theory and Representation Theory (Osaka, 1998), 60--81. (dvi)
- A characterization of finite Auslander-Reiten quivers of orders, Proceedings of the 30th Symposium on Ring Theory and Representation Theory (Nagano, 1997), 65--79. (dvi)
- A generalization of rejection lemma of Drozd-Kirichenko, Proceedings of the 29th Symposium on Ring Theory and Representation Theory (Kashikojima, 1996), 33--40. (dvi)

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