Professor of Biomaterials at Department of Materials Engineering of University of Tokyo. Joint appointment in Medical School of University of Tokyo as Professor of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine. Editorial of Journal of Biomaterials Science, Polymer Edition. Associate Editor of Biomacromolecules. Associate Editor of Biomaterials. Recipient of the 2012 Humboldt Research Award. President of Controlled Release Society. Reciepient of the 2015 Journal of Drug Targeting Life-Time Achievement Award.