He studied American social history and Asian-Ocean American society, including the history of Japanese American society, at Orange Coast College, California State University, Fullerton, and Yokohama City University. Currently, while belonging to several academic societies, he continues to conduct his own research on the history of Japanese American society, particularly in order to "connect" Japanese American society with Japanese society. From his unique position as a Japanese person with "connections" to foreign countries, he also sounds the alarm about the inward-looking and even xenophobic trends in current Japanese society, and actively expresses his opinions about multicultural coexistence in Japanese society.

(Updated December 2016)