Prof. Ryu received his PhD from Osaka University in Japan in 1978 under the supervision of Professors Noboru Sonoda and Shinji Murai. After serving as of a JSPS Postdoctoral Fellow and a Research Associate at Osaka University, he was appointed Assistant Professor at Osaka University in 1988 and promoted to Associate Professor in 1995. He also had the experience of working with Professor Howard Alper (1991-1992) at the University of Ottawa. In 2000 he moved to Osaka Prefecture University as a Full Professor. He has been the recipient of the Progress Award in Synthetic Organic Chemistry, Japan (1991) and the Chemical Society of Japan Award for Creative Work (2005). His research interests include new synthetic methodologies based on reactive species such as radicals, anions, and organometallic species. He is also keen to greener reaction processes, which involve the utilization of recycling reaction media like ionic liquids and fluorous solvents, and the use of microreactors as a modern reaction device.