Takeo Igarashi is a Professor of Computer Science Department at The University of Tokyo. He received a Ph.D from the Department of Information Engineering at The University of Tokyo in 2000. He joined the Department of Computer Science as an assistant professor in 2002 and was promoted to professor in 2011. His research interest is in user interfaces and interactive computer graphics in general. He is known for the development of a sketch-based modeling system (Teddy) and a multi-touch shape deformation method.