Koichi Eugene Okamoto Koichi Eugene Okamoto, Ph.D. A professor of social psychology and a leading tea ceremony practitioner. Being a former Fulbright scholar, he led the Japanese academia in risk perception and applied social psychology for safety for deades. He studied chanoyu under Urasenke School, who gave him the tea name "Soshin," and is an active member of Japanese Society for Studies of Chanoyu. He authored many books on Japanese Tea Ceremony that are widely-read in Japan. Read More Read Less