He is also a member of the Special Project on Comparative Civil Society, State and Culture (University of Tsukuba). He completed his Ph.D. (International Christian University, Tokyo) in 1999. He is a visiting scholar at CITI from 2004-2005, as a research fellow sponsored by the Japanese Ministry of Education, Culture, Sports, Science and Technology. His research project is "Paths for Digital Inclusion and Dynamics of the Japanese Network Society."