Aristotelian Meteorology in Syriac. Barhebraeus, Butyrum sapientiae. Books of Mineralogy and Meteorology (Aristoteles Semitico-Latinus 15). Leiden: Brill. 2004.
Barhebraeus: A Bio-Bibliography. Piscataway (N.J.): Gorgias Press. 2005.

"Simeon of Qal‘a Rumaita, Patriarch Philoxenus Nemrod and Bar ‘Ebroyo", Hugoye: Journal of Syriac Studies 4/1 (2001).
"Syriac Fragments of Theophrastean Meteorology and Mineralogy - Fragments in the Syriac version of Nicolaus Damascenus, Compendium of Aristotelian Philosophy and accompanying scholia", in W. Fortenbaugh & G. Wöhrle (ed.), On the Opuscula of Theophrastus, Akten der 3. Tagung der Karl-und-Gertrud-Abel-Stiftung vom 19.-23. Juli 1999 in Trier, Stuttgart: Franz Steiner, 2002, p.189-225.
"Barhebraeus und seine islamischen Quellen. Têgrat têgrātā (Tractatus tractatuum) und Ġazālīs Maqāṣid al-falāsifa", in M. Tamcke (hrsg.), Syriaca. Zur Geschichte, Theologie, Liturgie und Gegenwartslage der Syrischen Kirchen. 2. Deutsches Syrologen-Symposium (Juli 2000, Wittenberg) (Studien zur Orientalischen Kirchengeschichte 17), Münster: LIT Verlag, 2002, S.147-175.
“Syriac as the ‘Missing Link’ in the Transmission of Knowledge: the Syriac Version of Nicolaus Damascenus’ Compendium of Aristotelian Philosophy”, The Toyo Gakuho 84 (2002), p. 370-350 (in Japanese).
"Observations on Bar 'Ebroyo's Marine Geography", Hugoye: Journal of Syriac Studies 6/1 (2003).
"Reception of Ibn Sīnā in Syriac. The Case of Gregory Barhebraeus", in D. Reisman (ed.), Before and After Avicenna. Proceedings of the First Conference of the Avicenna Study Group (Islamic Philosophy, Theology and Science 52), Leiden: Brill, 2003, p.249-281.
"The Greco-Syriac and Arabic Sources of Barhebraeus’ Mineralogy and Meteorology in Candelabrum sanctuarii, Base II". Journal of Eastern Christian Studies 56 (2004), p.191-209.
"Bemerkungen zum Buch der Blitze (Ktobo d-zalgē) des Barhebraeus", in M. Tamcke (hrsg.), Suryoye und ihre Umwelt. 4. deutsches Syrologen-Symposium in Trier 2004. Festgabe Wolfgang Hage zum 70. Geburtstag (Studien zur Orientalischen Kirchengeschichte 36), Münster: LIT Verlag, 2005, S.407-422.
"Syriac Version by Ḥunain (?) of Nicolaus Damascenus’ Compendium of Aristotelian Philosophy and Accompanying Scholia". Journal of the Canadian Society for Syriac Studies 5 (2005), p.18-34.
"Reception of Greek Philosophy and Science in Syriac", Rekishigaku Kenkyu: Journal of Historical Studies No.807 (2005), p.162-170 (in Japanese).
"On the ‘Moutain of the Servants of God' - A Tour of Ṭūr ‘Abdīn", Eikon: Studies in Eastern Christianity 32 (2005), p.48-62 (in Japanese).
"Fakhr al-Dīn al-Rāzī, Qazwīnī and Bar Shakkō", The Harp: A Review of Syriac and Oriental Ecumenical Studies 19 (2006), p.365-379.
"A Note on Syriac Studies in Japan", The Harp: A Review of Syriac and Oriental Ecumenical Studies 20 (2006) [= Festschrift: Rev. Dr. Jacob Thekeparampil], p.35-46.
"„Ökumenismus“ unter den Syrern: Gregorius Barhebraeus (1225/6-1286)". UTCP Bulletin 7 (2007), S.75-81.
"From Syriac into Arabic and from Arabic into Syriac", Oriental Culture (The Institute of Oriental Culture, The University of Tokyo) 87 (2007), p.1-21 (in Japanese).
"St. Thomas Christians of Kerala: the Way of St. Thomas and the Way of St. Peter", in Catholicism and Culture, Tokyo: The Institute of Cultural Science, Chuo University, 2008, p. 75-151 (in Japanese).
"Translation and Inter-Cultural Relationship: Translations from and into Syriac", in A. Iwanami & N. Notomi (ed.), Language, Culture and European Tradition IV: Diversity and Creativity, Tokyo: Keio University Press, 2008, p.83-110 (in Japanese).
"A Treatise on Meteorology by Muḥammad b. Mūsā al-Ṭālishī (ms. Daiber Collection II, 82)". in Islamic Thought in the Middle Ages. Studies in Text, Transmission and Translation in Honour of Hans Daiber, Leiden: Brill, 2008, p. 363-401.

Michael Psellus, "Ad Johannem Xiphilinum epistola", "Peri ton ideon has ho Platon legei", "Peri noetou kallous", in Corpus fontis mentis medii aevi 3, Tokyo: Heibonsha, 1994, p.783-806 (translation into Japanese).
Lactantius, "De ira Dei", in Corpus fontium mentis medii aevi 4, Tokyo: Heibonsha, 1999, p.305-388 (translation into Japanese).
Marcus Tullius Cicero, Epistulae ad Atticum II, Tokyo: Iwanami Shoten, 2001 (translation into Japanese, with Y. Oshiba).
J. Josephus Overbeck, S. Ephraemi Syri, Rabulae episcopi edesseni, Balaei, aliorumque opera selecta. Selected Works of St. Ephrem the Syrian, Rabbula, Bishop of Edessa, and Balai. Latin Material Translated by Hidemi Takahashi. Piscataway: Gorgias Press, 2006. (translation of Latin material into English).
"Barhebraeus, Gregory Abū al-Faraj", in T. Hockey (ed.), Biographical Encyclopedia of Astronomers, New York: Springer, 2007, p. 94-95.