His thesis was written on the topic of Arguments Regarding Religious Freedom in the Meiji Period.
In graduate school he was influenced by Hirata Atsutane, a Japanese theologian who lived during the Edo period.
[2][1] In 1995, he helped to moderate and temper society's responses to the Aum Shinrikyo terrorist attack in Tokyo.
[4] Other publications include Shinto: A Short History, 2003, Taylor & Francis, co-authored with Endo Jun, Mori Mizue, Ito Satoshi;[5][6] Folk Beliefs in Modern Japan, 1994, Institute for Japanese Culture and Classics, Kokugakuin University.
In 2019, Inoue was elected as an International Honorary Member of the American Academy of Arts and Sciences.