PhD, Tokyo University and professor of the International Research Center for Japanese Studies. Specializes in the study of the history of Japanese Buddhism and history of thought in East Asia. Publications include: History of Buddhism in Japan, An Analytical Study of the History of Japanese Buddhist Thought, A Study of Buddhist Thought of Early Heian Era, Thinkers of the Time of Meiji, Modern Japan and Buddhism, History of Religion in Japan, Buddhism vs. Ethics, etc.