He is a computer scientist especially focusing on distributed systems, mobile and ubiquitous computing, context-aware computing, and “attention-aware” computing. His current research topic is human-attention-awareness and its management in ubiquitous computing and cyber physical systems. He holds B.A. in Environmental Information (1998), Master of Media and Governance (2000) from Keio University, M.S. in Computer Science (2006) from Carnegie Mellon University, and Ph.D. in Media and Governance (2015) from Keio University, respectively. He also has over 7 year experiences of entrepreneurship, software architecting, product management, and project management in IT industries (Web2.0, blogging, social networking and social media).