Toshiyuki Imamura received his Diploma and Doctorate in Applied Systems and Sciences both from Kyoto University in 1993 and 2000, respectively. He was a Researcher at the Center for Computational Science and Engineering, Japan Atomic Energy Research Institute from 1996 to 2003, a visiting scientist at HLRS (Germany) in 2002, and an associate professor at the University of Electro-Communications from 2003 to 2012. He has worked for RIKEN Center for Computational Science (R-CCS) since 2012. He is a team leader of Large-scale Parallel Numerical Computing Technology Team, and responsible for the development of mathematical libraries on supercomputer Fugaku. His research interests include high-performance computing, automatic tuning technology, parallel eigenvalue computation (algorithm/software/applications).