Modern Sino-Japanese Buddhist studies scholar, professor at the University of British Columbia, Vancouver. Specialist in Sui–Táng Buddhist history, esoteric Buddhism, and East-Asian Tendai/Tiāntái networks. Major monographs include Making and Remaking History: A Study of Tiantai Sectarian Historiography (Tokyo: ICPBS, 1999), Monks and Monarchs, Kinship and Kingship: Tanqian in Sui Buddhism and Politics (Kyoto: Italian School of East Asian Studies, 2002), Philosopher, Practitioner, Politician: The Many Lives of Fazang (643–712) (Leiden: Brill, 2007), and Crossfire: Shingon-Tendai Strife as Seen in Two Twelfth-Century Polemics (Tokyo: ICPBS, 2010). Contributed the article on the three apocryphal Śubhakarasiṃha-attributed esoteric ritual manuals (T905–T907) KR6v0056 to Zàngwài fójiào wénxiàn vol. 4.