1988, BA in Political Science and Economics, Waseda University, Japan; 1995, MBA, Wharton School, University of Pennsylvania, US. Formerly: with Tokyo Gas; Executive Vice-President, HyperNet; Senior Vice-President, NTT DoCoMo. Member of the board for five public companies and several private companies. Member, Advisory Board, World Wide Web Consortium (W3C). Author: i-mode Strategy (2000); A la i-mode (2002); Keitai-no-Mirai (2006) and others. Recipient of awards.