Kazuhiko Takeuchi graduated from the Department of Geography, the University of Tokyo in 1974. He obtained M.Agr. and Ph.D. from the Graduate School of Agriculture, the University of Tokyo. He served as a Professor at the Asian Natural Environmental Science Center, and as Professor at the Graduate School of Agricultural and Life Science at the University of Tokyo from 1997 to 2012. He also served as a Vice-Rector and Senior Vice-Rector at the United Nations University from 2008 to 2016. He has been Director and Professor/Project Professor of the Integrated Research System for Sustainability Science (IR3S) at the University of Tokyo since 2012. He took up the position as President, Institute for Global Environmental Strategies (IGES) in July 2017. He has served, inter alia, as a Vice-President of the Science Council of Japan, Chair of the Central Environmental Council, Government of Japan, and Editor-in-Chief of the journal Sustainability Science (Springer Nature).
He specialises in landscape ecology, landscape planning, and sustainability science.
After graduating from Department of Civil Engineering, Tokyo Institute of Technology, Yoshisato Asaba entered Kanagawa Prefectural Government in 1980. He served in various positions, including Director of the Urban Planning Division, Executive Director of the Ecological Urban Development Department, Executive Director of the Urban Areas Department, and Director General of the Prefectural Land Development Bureau. He was assigned to the current position, Vice Governor, in May 2016.