He received the Ph.D. degrees in electronics engineering from Nara Institute of Science and Technology, Japan, in 2003. After graduation, he undertook a Post-Doctoral Fellow at the Institut für Physikalische Elektronik, Universität Stuttgart, Germany, researching wearable photovoltaics. From 2005, he was a Post-Doctoral Fellow at the Department of Physics and Astronomy, University of Toledo, USA, researching multi-junction amorphous silicon-based solar cell. In 2006, he joined Sharp Corporation, Japan, where he had been engaged in the research of solar cell. Since 2010, he has been an Associate Professor of the Graduate School of Materials Science, Nara Institute of Science and Technology, Japan. His current research interest involves the application of nanostructure for energy harvester, processing of printed-electronics, oxide materials and devices, and reliability of photovoltaics.