Kenji Katayama is Professor at the Department of Applied Chemistry of Chuo University. He received PhD at the University of Tokyo in 2001, and was an research associate there for 5 years, and worked as a postdoc at MIT and Kanagawa Academy of Science and Technology, and became an associate professor in 2006 at Chuo University. His research interests cover the time-resolved spectroscopy and microscopy, which have been applied for photocatalysts, photovoltaics and photo-responsive liquid crystals.