Career
He is a Professor of Oriental History and Inner Asian Studies at Tokai University. His research fields include Ancient Turkic inscriptions, Turfan documents, and Otani expeditions. Katayama has been a professor at the History department in Tokai University Faculty of Letters since 1995.
He holds a graduate degree from Sophia University"s Graduate School of Letters (1985).
His main research areas include Central Asian history, historical Chinese-Central Asia relations, and Turkic tribes of Central Asia.
