| Year | Degrees | Major | Institution |
| 1999 | Ph.D. | Educational Technology | Tokyo Institute of Technology |
| 1983 | M.Eng. | Educational Technology | Keio University |
| 1981 | B. A. | Educational Technology | Keio University |
| Year | Organization | Location | Rank/Job Title |
| 2009- | The Open University of Japan | Chiba Japan | Professor |
| 2009-2011 | The Open University of Japan | Chiba Japan | Regent |
| 2009-2011 | Center of ICT and Distance Education The Open University of Japan | Chiba Japan | Director |
| 2007-2009 | National Institute of Multimedia Education | Chiba Japan | Assistant President |
| 2006- | Graduate University for Advanced Studies | Hayama Japan | Professor |
| 2006-2009 | National Institute of Multimedia Education | Chiba Japan | Professor |
| 2001-2006 | Graduate University for Advanced Studies | Hayama Japan | Associate Professor |
| 2000-2006 | National Institute of Multimedia Education | Chiba Japan | Associate Professor |
| 1995-2000 | NEC Corporation | Kawasaki Japan | Manager |
| 1989-1995 | NEC Corporation | Kawasaki Japan | Supervisor |
| 1983-1989 | NEC Corporation | Kawasaki Japan |
| Year | Organization | Location | Rank/Job Title |
| 2008- | Kumamoto University | Kumamoto Japan | Visiting Professor |
| 2002-2010 | United Nations Univsersity | Tokyo Japan | Visiting Professor |
| 2008-2009 | Tokyo Institute of Technology | Tokyo Japan | Cooperate Professor |
| 2000-2008 | Tokyo Institute of Technology | Tokyo Japan | Associate Professor |
| 2001-2004 | Telecommunications Advancement Organization of Japan | Tokyo Japan | Research Fellow |
| 1989-1990 | CSLI at Stanford University | Palo Alto U.S.A. | Visiting Researcher |
| Year | Organization | Title |
| 2009- | Comittee for Annual Meeting Japan Society for Educational Technology | Member |
| 2007-2009 | Comittee of Grants-in-Aid for Scientific Research Japan Society for the Promotion of Science | Member |
| 2006- | Councilor of Japan Society for Educational Technology | Member |
| 2006- | Editorial Board of Japan Society for Educational Technology | Member |
| 2006- | Executive Board of Japan Society for Science Education | Member |
| 2004- | Steering Committee of Japanese Cognitive Science Society | Member |
| 2004- | Editorial Board of Japan Society for Science Education | Member |
| 2002-2004 | Committee for Development of e-Learning System of Information-Technology Promotion Agency | Member |
| 2000-2002 | Committee for Development of Collaborative Learning System of Information-Technology Promotion Agency | Chair |
| 2001-2002 | Program Committee in Annual Conference of Japan Society for Educational Technology | Member |
| 2001-2005 | Inquiry Committee of Child Dream Foundation in National Olympics Memorial Youth Center | Member |
| 2001-2004 | C-Net Project Promotion Committee of Chiba Prefectural Board of Education | Member |
| 2000- | SC36 / Information Technology Standards Commission of Japan / Information Processing Society of Japan | Member |
| 1998-2002 | Editorial Board of ISS Society Magazine of Institute of Electronics Information and Communication Engineers | Member |
| 2000-2001 | Award Selection Committee of Japan Cognitive Science Society | Member |
| 1992 | Technology-Supported Pedagogy Session in 9th International Conference on Technology and Education | Chair |
| Year | Honor | Awarding Organization |
| 2011 | Science Education Practice Award | Japan Society for Science Education |
| 2010 | Cyberspace Research Award | SIG on Cyberspace and Virtual City Japan Society for Virtual Reality |
| 2009 | Best Paper Award | Japan Society for Science Education |
| 2008 | ED-MEDIA2008 Outstanding Paper Award | AACE |
| 2007 | Presentation Award | Japan Society for Science Education |
| 2007 | People's Choice Awards for CHI2007 Works-in-Progress Fourth Place on Tuesday | ACM SIGCHI |
| 2006 | Best Paper Award | Japan Society for Educational Technology |
| 2005 | Best Paper Award | Japan Society for Educational Technology |
| 1998 | Best Paper Award | Japan Society for Educational Technology |
| 1997 | Best Presentation Award of SIG Design of Education Environment | Japan Cognitive Science Society |
| 1993 | Best Presentation Award of SIG Representation and Interface | Japan Cognitive Science Society |