- The classification problem of non-topological invertible QFTfs and a gphysicists-friendlyh model for the Anderson duals, Wales MPPM Zoom Seminar, online, February 2021.
- The classification problem of non-topological invertible QFT's and a "differential" model for the Anderson duals, OIST workshop ``Quantum Math, Singularities and Applicationsh, online, February 2021.
- Deformation quantizations of torus bundles and a lattice version of Atiyah-Singer index theorem, Contact Structures, Singularities, Differential Equations and Related Topics, online, January 2021.

- The classification problem of non-topological invertible QFT's and a "differential" model for the Anderson duals, Tokyo Tech Geometry Seminar and Tokyo Tech Topology Seminar, online, December 2020.
- Deformation quantizations of Lagrangian torus bundles and their application to lattice gauge theory, Poisson geometry and related topics 2020, online, November 2020.
- Deformation quantizations of torus bundles and a lattice version of Atiyah-Singer index theorem, Workshop on Operator Theory and Operator Algebras, online, November 2020.
- Deformation quantizations of torus bundles and a lattice version of Atiyah-Singer index theorem, The 67th Topology Symposium - Online, October 2020.
- Deformation quantizations of Lagrangian torus bundles and their application to lattice gauge theory, Aspects of Mirror Symmetry, online, September 2020.
- A new construction of deformation quantization for Lagrangian fiber bundles, 45th LQP (Local Quantum Physics) workshop, online, June 2020. https://www.entangled.eu/events/vlqp/
- A new construction of strict deformation quantization for Lagrangian fiber bundles, Tokyo-Kyoto Joint Online Operator Algebra Seminar, May 2020.
- A new construction of strict deformation quantization for Lagrangian fiber bundles, Mini workshop "Quantum field theory, algebraic topology and Quantization", the University of Tokyo, March 2020.
- Spectral convergence in geometric quantizations and deformation quantizations, Geometry seminar, Meiji University, February 2020.
- A physicist-friendly reformulation of the Atiyah-Patodi-Singer index and its mathematical justification, Yukawa Institute for Theoretical Physics, Kyoto University, January 2020.
- Spectral convergence in geometric quantizations, East Asian Core Doctoral Forum on Mathematics 2020, Kavli IPMU, The University of Tokyo, January 2020.

- Spectral convergence in geometric quantizations, Differential toplolgy seminar, Kyoto University, December 2019.
- Localization of indices of elliptic operators and infinite-dimensional Witten deformations, Colloquium, Kyoto University, December 2019.
- Geometric quantization via measured Gromov-Hausdorff convergence of metric measure spaces, Oberwolfach Workshop gSubfactors and Applicationsh, Mathematisches Forschungsinstitut Oberwolfach, November 2019.
- Local signatures and infinite-dimensional Witten deformations, Differential geometry and topology seminar, Keio University, October 2019.
- A K-theoretic approach to local signatures, Topological Studies around Riemannian Surfaces, the University of Tokyo, September 2019.
- Adiabatic-type deformations of Lie groupoids and applications, Recent Developments in Operator Algebras, RIMS, Kyoto University, September 2019.
- Index theory on manifolds with fibered boundaries and its applications, The 66th Geometry Symposium, Nagoya University, August 2019.
- Index theory on manifolds with fibered boundaries and its applications, TMU Geometry Seminar, Tokyo Metropolitan University, July 2019.
- On signatures for stratified pseudomanifolds, Geometry Seminar in Nagoya University, Nagoya University, July 2019.
- A topological approach to signature on manifolds with edges, Seminaire dfAlgebres dfOperateurs, Paris Diderot University, June 2019.
- Index theory on manifolds with fibered boundaries and its applications, Kyoto Operator Algebras Seminar, Kyoto University, March 2019.
- A topological approach to indices of geometric operators on manifolds with fibered boundaries, Shinshu Topology Seminar, Shinshu University, February 2019.

- Localization of signature for singular fiber bundles, Operator Algebra Seminar, Univertisy of Tokyo, November 2018.
- Localization of signature for singular hyperelliptic fiber bundles, Junior Meeting on Functional Analysis, Kansai Seminor House, August 2018.

- Finite part of operator K-theory for group C*-algebras, Junior Meeting on Functional Analysis, Nara Womenfs University, August 2017.
- Coarse index theory of complete Riemannian manifolds, Young Mathematicians in C*- Algebras conference 2017, the University of Copenhagen, August 2017.