Ken Nagata is currently a director of the Clinical Research Institute, Yokohama General Hospital, Yokohama, Japan. He graduated from Hirosaki University School of Medicine in 1978 and had neurology training at Mihara Memorial Hospital. He received a Ph.D. degree from Hirosaki University in 1988. He was a visiting assistant professor at the Department of Neurology, University of Colorado Health Sciences Center in Denver, USA from 1983 to 1984. He is a founding chairman of the Japanese Vas-Cog Society and hosted the Vas-Cog World Congress 2015 in Tokyo. His main interests include cerebrovascular disease, dementia, and neuroimaging.