Sophia University Faculty of Humanities Department of Philosophy (BA)
Sophia University Graduate School of Philosophy (MA)
Sophia University Faculty of Theology Department of Theology (BA)
Sophia University Graduate School of Theology (STB)
Weston Jesuit School of Theology (STL, Moral Theology)
Jesuit School of Theology at Berkeley (STD, Moral Theology)
Fundamental Moral Theology
Gender and Sexual Ethics
History of Theological Ethics
Conscience and Catholicism: Rights, Responsibilities, and Institutional Responses "Three Modes of the Embodiment of Conscience" ed by David E. DeCosse and Kristin E. Heyer; Osamu Takeuchi[etc.] Orbis Books 2015
Just Sustainability: Technology, Ecology, and Resource Extraction (Catholic theological ethics in the world church; 3) "Nature, Human Beings, and Nuclear Power in Japan" (ed.by) Christiana Z. Peppard and Andrea Vicini, S.J.; TAKEUCHI OSAMU[etc.] Orbis Books 2015.
Conscience and Culture: A Dialogue between the West and the East concerning Conscience (Saarbrücken, Germany: LAP Lambert Academic Publishing, 2010).
Professional Activities and Affiliations
1991—1993: Teacher, Hiroshima Gakuin High School.
2002—present: Professor, Sophia University, Faculty of Theology.
April 2011—September 2019: Director, Institute for Christian Culture, Sophia University.
April 2013—March 2019: Dean, Graduate School of Theology, Sophia University.