Studied in Europe and the United States (1901).
He was appointed professor at the Peers' School. Appointed professor at his alma mater (1904) and chief official researcher of Manchurian history (1908). He started the periodical Toyo Gakuho (Academic Bulletin of the East) which carried his treatises on the history of Manchuria, Korea, Central Asia and areas around China and on the history of the intercourse between the West and the East (1909).
(The Oriental Library, No. 9.)1937