on 26 June 2005,Invited by the Hitotsubashi University, Prof. Xiang Yu, director of Chinese-Germany Institute of Intellectual Property, attended a international seminar on “the Exhausttion of Intellectual property” in Hitotsubashi University.He delivered a speech titled“Exhaustion and trade between developed and developing countries-China as an example”.

Many famous Professors were invited to this seminar, they came from Tokyo University, Hokkaido University, Waseda University, Hitotsubashi University, Senshu University, Tokyo institute of technology, University of Tsukuba, Kobe University, Yokohama National University, Policy University, University of Duisburg-Essen and Huazhong university of science and technology, researchers, judges, examinants and intellectual property managers come from The Max Plank Intellectual property Institute, Japan Superior Court, Japan Patent Office and Japan Sony Corporation

During this period (June 25 ~ July 2), Prof. Xiang Yu also met with several professors of Hokkaido University, Osaka, Waseda University and Hitotsubashi University, they exchanged views on teaching of intellectual property , challenges in IP field faced by Asia, future cooperation possibility of cooperation and intercommunion in the future.