His research interests are in the areas of Computer Networks and Ubiquitous and Mobile Computing. He's not only interested in academic research activities but also enjoyed designing new business and its field trial while joining IT startup companies. He is a technical advisor of AgIC, Inc and SenSprout, Inc. He received his Ph.D. in Information Communication Engineering in 2005 from the University of Tokyo. He joined the faculty in 2005. He was a visiting assistant professor at Georgia Institute of Technology and MIT Media Lab in 2011 and 2013, respectively.