1997
Soka University, Faculty of Economics
1983 - 1985
Soka University, Faculty of Economics
1985 - 1988
Soka University, Faculty of Economics
1991 - 1992
V
1988 - 1997
Soka University, Faculty of Economics
2001 - 2008
Editor Member, Beyond of Information Tecnology
2010 - 2012
Executive Member, The Japan Society for Archival Science
2011 - 2016
Director, Socio-Economic Society