文学修士(関西学院大学), 文学修士(上智大学), Sacred Theology Licenciate(Weston Jesuit School of Theology), カトリック神学教授資格(ウェストンイエズス会神学大学院), Doctor of Philosophy in History(Georgetown University), 歴史学博士(ジョージタウン大学)
Integration and Division between Universalism and Localism in Jesuit Mission Reports and Histories: Sophia University International Colloquium 2005 REPORT 101-114 2006年3月
75 the Anniversary of Diplomatic Relations Between Japan and the Holy See. 2017年10月12日 Embassy of Japan to the Holy See, Pontifical Gregorian University, Japan Catholic Central Conference. [招待有り]