author
b. 1891
A Japanese writer and overseas journalist, he brought an international perspective to his work and also published under the pen name Amanojaku. He is best known in English for co-authoring Japan and the California Problem, a book that explored Japanese immigration and anti-Japanese sentiment in early 20th-century California.

by T. (Toyokichi) Iyenaga, Kennosuke Sato
Born in 1891 and dying in 1967, Kennosuke (Ken) Satō was a Japanese writer and overseas journalist for the Osaka Mainichi Shimbun. Sources also note that he wrote under the pen name Amanojaku.
Brief biographical summaries describe him as unusually international in outlook for his time. He was educated in San Francisco and is also said to have studied at universities in the United States, which helps explain the ease with which he wrote about Japan's relationship with America.
Readers in English are most likely to know him as the co-author, with T. Iyenaga, of Japan and the California Problem. That work examined immigration, race relations, and public opinion in California, showing his interest in explaining Japanese perspectives to overseas audiences.