He obtained a doctoral degree from Kyoto University in 1997. He became an assistant professor in 1997 and was promoted to an associate professor in 2006. He worked with Professor Durrant as an academic visitor at Imperial College London (London, United Kingdom) from 2005 to 2006. His research interests include studying the fundamental processes of photophysics and photochemistry in polymer systems such as excitation energy and electron transfer. His current research focuses on spectroscopic approach to polymer solar cells.