Koichi Shimizu received his M.S. (1976) and Ph.D. (1979) degrees from the University of Washington, Seattle, USA. He served as a Research Associate at the University of Washington from 1974 to 1979. From 1979 to 2016, he held academic positions as Assistant Professor, Associate Professor, and Professor at Hokkaido University, Sapporo, Japan. He is currently Professor Emeritus at Hokkaido University, Invited Research Professor at Waseda University, Japan, and Professor at Xidian University, Xi’an, China. His research has focused on biomedical engineering. He served as an Associate Editor of IEEE Transactions on Information Technology in Biomedicine from 1999 to 2007. He is a Fellow of the Electromagnetics Academy and members of the editorial board of Scientific Reports (Nature Portfolio) and Advanced Imaging.