Academic Degrees:

• University of Bonn, Bonn, Germany, Dr. rer. pol. (summa cum laude), 1983, Supervisor (first reviewer): Wilhelm Krelle, The second reviewer: Dieter Sondermann, Dean: Werner Hildenbrand.
• Keio University, Tokyo, Japan, B.A. Economics 1974, M.A. Economics 1978

Professional Societies:

• International Society for Industrial Ecology

Academic Employment:

• Professor of Industrial Ecology, Faculty of Political Science and Economics, Waseda University, 2010-31/3/2022
• Professor of Econometrics, Faculty of Political Science and Economics, Waseda University, 1992-2009
• Associate Professor of Economics, Faculty of Political Science and Economics, Waseda University, 1987-1991
• Assistant Professor of Economics, Faculty of Political Science and Economics, Waseda University, Tokyo, 1985-1987
• Research Associate, Department of Economics (SFB21), University of Bonn, Bonn, SFB 21 and SFB 303, Germany, 1979-1985

Selected Professional Activities:

• Editorial board member, Resources, Conservation and Recycling, 2019-2021
• Associate editor, Journal of Industrial Ecology, 2013-2017
• Chairman, Committee on the Preparation of Input-Output Tables for Analysis of Environmental Fields, Ministry of the Environment, Government of Japan, 2010-2018 Towards the Preparation of Input-Output Tables for Analysis of Environmental Fields
• Co-organizer, Erasmus Mundus Masters Course On Industrial Ecology, 2011-2017
• External Ph.D. Examiner, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland; Aalto University, Aalto, Finland; Chuo University (Engineering), Tokyo, Japan, Tohoku University (Engineering), Sendai, Japan

Visiting Appointments:

• Visiting Fellow, Center for Advanced Studies (CAS), Ludwig-Maximilians-Universitat in Munich, Munich, Germany, September 2012
• Guest Professor, EcoTopia Science Institute, Nagoya University, Nagoya, Japan, 2005-2012
• Visiting Associate Professor, Department of Economics, University of Toronto, Toronto, Canada, 1988-1990
• Visiting Scholar, German Institute for Economic Research, Berlin, Germany, Summer 1985 and Summer 1987

Awards and Scholarships

• 2024 Best Paper Award, Circula Economy, for the article Reshaping global policies for circular economy with Xianlai Zeng, Oladele A. Ogunseitan, Sangwon Suh, Ulrich Kral, Jinhui Li, and Yong Geng.
• The Society Prize of the International Society of Industrial Ecology. October 2021.
• Asada Medal, The Iron and Steel Institute of Japan, December 2012
• President Award, Steel Foundation for Environmental Protection Technology, Japan, June 2012
• Erasmus Mondus Scholarship for Faculty, May 2012. Charmers University of Technology, Gothenburg, Sweden
• Contribution Award, Institute of Life Cycle Assessment, Japan, March 2012
• Geffrub (Gesellschaft von Freunden und Forderern der Rheinischen Friedrich-Wilhelms-Universitaet zu Bonn e.V.) Prize for the best doctoral dissertation, University of Bonn, 1983
• Scholarship of DAAD (German Academic Exchange Service), 1978-1979. I was eligible to receive a scholarship for another year; however, I resigned due to my employment as a research associate at the University of Bonn.