Researcher Profile and Settings

URL

https://rishida.hatenadiary.jp/

researchmap

https://researchmap.jp/r_ishida

Research Interests

• Person
• Angel
• Natural Theology
• Scholastic Philosophy
• Individuation
• Hylomorphism
• Ontology
• Metaphysics

Research Areas

• Humanities & social sciences / Philosophy and ethics / Western Mediaeval Philosophy

Research Experience

• Kyoto University, Faculty of Letters, Part-Time Lecturer, 2025/04 - Today
• Doshisha University, Faculty of Letters Department of Philosophy, Assistant Professor, 2022/04 - Today
• Waseda University, Faculty of Letters, Arts and Sciences, Part-Time Lecturer, 2022/09 - 2023/03
• J. F. Oberlin University, College of Liberal Arts, 非常勤講師, 2021/09 - 2022/03
• Waseda University, Faculty of Letters, Arts and Sciences, 非常勤講師, 2021/09 - 2022/03
• Keio University, Faculty of Letters, Visiting Researcher, 2020/04 - 2022/03
• Toyo University, Faculty of Letters, Part-Time Lecturer, 2019/04 - 2022/03
• University of Tsukuba, School of Humanities and Culture, Part-Time Lecturer, 2021/04 - 2021/09
• Keio University, Correspondence Courses, Part-Time Lecturer, 2021/08 - 2021/08
• University of Tsukuba, School of Humanities and Culture, Part-Time Lecturer, 2019/04 - 2020/09
• Keio University, Correspondence Courses, Part-Time Lecturer, 2020/08 - 2020/08
• Japan Society for the Promotion of Science, Postdoctoral Fellow (Keio University), 2017/04 - 2020/03
• Keio University, Correspondence Courses, Part-Time Lecturer, 2019/08 - 2019/08
• Université de Fribourg, Faculté des lettres et des sciences humaines, Post-Doc., 2018/11 - 2019/03
• Keio University, Correspondence Courses, Part-Time Lecturer, 2018/09 - 2018/12
• University of Tsukuba, School of Humanities and Culture, Part-Time Lecturer, 2018/04 - 2018/09
• University of Tsukuba, School of Humanities and Culture, Teaching Fellow, 2016/04 - 2017/03
• Japan Society for the Promotion of Science, Research Fellowship DC2, 2015/04 - 2017/03
• University of Tsukuba, School of Humanities and Culture, Teaching Assistant, 2012/05 - 2016/03

Education

• University of Tsukuba, Graduate School of Humanities and Social Sciences, Doctoral Program in Philosophy, 2012/04 - 2017/03
• University of Tsukuba, School of Humanities and Culture, College of Humanities, 2008/04 - 2012/03

Degree

• Doctor of Philosophy, University of Tsukuba, Mar. 2018
• Master of Arts, University of Tsukuba, Mar. 2014

Association Memberships

• The Kansai Ethical Society, Aug. 2022, 9999
• The Kansai Philosophical Association, Jun. 2022, 9999
• Societas Philosophiae Doshisha, Jun. 2022, 9999
• Roger Bacon Research Society, May 2020, 9999
• Mita Philosophy Society, May 2017, 9999
• THE JAPANESE SOCIETY FOR ETHICS, Dec. 2016, 9999
• JAPANESE SOCIETY FOR NEOPLATONIC STUDIES, Aug. 2015, 9999
• The Kyodai Society of Medieval Philosophy, Apr. 2014, 9999
• Japan Society for Medieval European Studies, Apr. 2014, 9999
• The Philosophical Association of Japan, Apr. 2014, 9999
• The Japanese Society of Medieval Philosophy, Nov. 2013, 9999
• The Society for Study of Philosophy, University of Tsukuba, Apr. 2012, 9999
• University of Tsukuba Philosophical Association, Apr. 2012, 9999

Committee Memberships

• Editorial board member, 2025/04 - Today, Japan Society for Medieval European Studies, Society
• 監事, 2023/11 - Today, 中世哲学会, Society
• 委員, 2023/04 - Today, 同志社大学文化学会, Society
• 理事, 2022/09 - Today, 新プラトン主義協会, Society
• 編集担当, 2022/04 - Today, 京大中世哲学研究会, Society
• 編集幹事（校正担当）, 2018/04 - 2021/03, 中世哲学会, Society
• 『筑波哲学』編集委員, 2013/04 - 2019/04, 筑波大学哲学研究会, Society
• 会計担当, 2013/04 - 2017/03, 筑波大学哲学研究会, Society
• 院生幹事, 2013/11 - 2014/11, 筑波大学哲学・思想学会, Society

Published Papers

• 天使の自己認識：トマス・アクィナスの場合
  石田隆太
  文化学年報, (74) 87 - 105, Mar. 2025, Research institution
• Quantification and Abstraction of the Individual: Henry of Lübeck and Thomas Aquinas
  Ryuta Ishida
  Ókortudományi Folyóirat, (17) 1 - 13, Jan. 2025, Scientific journal
  

  URL of the attached fileDOI URL
• In Search of the Total Cause of Individuation: Bonaventure, Peter of Tarantasia, and Thomas Aquinas
  Ryuta Ishida
  Jimbungaku: Studies in Humanities, (214) 1 - 24, Nov. 2024, Research institution
  

  URL of the attached file
• What does it mean that beauty is a transcendental? Based on Eco’s understanding of Thomas Aquinas
  Ryuta Ishidfa
  Studies in Medieval Thought, (66) 21 - 35, Sep. 2024, Scientific journal
• Can we say that the Unique God and the Truine Persons are each individual? an aspect of scholastic application of the concept of individual to God
  Ryuta Ishida
  Ókortudományi Folyóirat, (16) 29 - 41, Jan. 2024, Scientific journal
  

  URL of the attached fileDOI URL
• Thomas Aquinas’s Theory of Species: From the logical viewpoint to the metaphysical viewpoint
  Ryuta Ishida
  Doshisha Annual of Philosophy, (46) 61 - 76, Sep. 2023, Scientific journal
  

  URL of the attached file
• The opposition, the medium, and the genus of good and evil: Simplicius’s Commentary in Thomas Aquinas’s De malo
  ISHIDA Ryuta
  Studia Neoplatonica, (21) 9 - 19, Apr. 2023, Scientific journal
• Reconstructing Species-as-Individuality Thesis from the Viewpoint of History of Philosophy: Thomas Aquinas and Michael Ghiselin
  Ryuta ISHIDA
  Ókortudományi Folyóirat, (15) 1 - 13, Jan. 2023, Scientific journal
  

  PermalinkURL of the attached file
• Thomas Aquinas on Avarice: De malo, q. 13
  Ryuta Ishida
  Jimbungaku: Studies in Humanities, (210) 1 - 41, Nov. 2022, Research institution
  

  URL of the attached fileDOI URL
• Spiritual Matter and Bonaventure’s Understanding of Matter: Physics and Metaphysics
  ISHIDA Ryuta
  Studies in Medieval Thought, (64) 55 - 69, Sep. 2022, Scientific journal
  

  PermalinkURL of the attached file
• Thomas Aquinas’s ‘A Study of Evil’: Quaestiones disputatae de malo, q. 1
  ISHIDA Ryuta
  Ókortudományi Folyóirat, (14) 15 - 40, Jan. 2022, Scientific journal
  

  PermalinkURL of the attached file
• Pedro Gómez’s Compendium and His Acceptance of Aquinas: A Jesuit Position
  ISHIDA Ryuta
  Miscellanea philosophica: The Tetsugaku Shiso Ronso, (40) 12 - 23, Jan. 2022, Scientific journal
  

  PermalinkURL of the attached file
• Individuality in the Godhead and the Trinity: Thomas Aquinas’s Theory of Individuals
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 1 - 17, Nov. 2021, Scientific journal
  

  PermalinkURL of the attached file
• Synchronistic Structuring of Angelology: Izutsu, Corbin, and Aquinas
  ISHIDA Ryuta
  Risou, (706) 78 - 88, Sep. 2021, Scientific journal
• Peter of John Olivi and the Problem of Individuation
  ISHIDA Ryuta
  Studies in Medieval Thought, (62) 38 - 53, Sep. 2020, Scientific journal
  

  URL of the attached file
• Specification of Celestial Bodies and Angels: Thomas Aquinas and his Theory of Species
  ISHIDA Ryuta
  Philosophy (Mita Philosophy Society), (145) 35 - 69, Mar. 2020, Scientific journal
  

  PermalinkURL of the attached file
• Francisco Suárez and Specification of Angels: A Jesuit Position on Thomas’s View
  ISHIDA Ryuta
  Miscellanea philosophica: The Tetsugaku Shiso Ronso, (38) 41 - 55, Jan. 2020, Scientific journal
  

  PermalinkURL of the attached file
• What Is Individuated? ―Two Scholastics’ Individuation Theories and their ontological premises―
  ISHIDA Ryuta
  Miscellanea philosophica: The Tetsugaku Shiso Ronso, (37) 1 - 13, Jan. 2019, Scientific journal
  

  PermalinkURL of the attached file
• 超越概念と個：トマス・アクィナスの場合
  石田隆太
  哲學（三田哲學會）, (141) 1 - 28, Mar. 2018, Scientific journal
  

  PermalinkURL of the attached file
• How Thomas Aquinas understood Porphyry: A case study of the discussion on the principle of individuation
  ISHIDA Ryuta
  Studia Neoplatonica, (17) 37 - 48, Mar. 2018, Scientific journal
  

  URL of the attached file
• Thomas Aquinas’s Theory of Individuation: for its unified understanding
  ISHIDA Ryuta
  University of Tsukuba, 2018, Doctoral thesis
  

  DOI URL
• Two Aspects Latent in the Principle of Individuation: The Basis of Thomas Aquinas’s Individuation Theory
  ISHIDA Ryuta
  Miscellanea philosophica: The Tetsugaku Shiso Ronso, (36) 91 - 103, Jan. 2018, Scientific journal
  

  PermalinkURL of the attached file
• Thomas Aquinas and the Individuation of Angels: Concerning a Range in the Principle of Individuation
  ISHIDA Ryuta
  Studies in Medieval Thought, 中世哲学会 ; 1958-, (59) 31 - 45, Sep. 2017, Scientific journal
  

  URL of the attached file
• The Logic of the Individual according to Thomas Aquinas: concerning the meaning of God as individual
  ISHIDA Ryuta
  Miscellanea philosophica: The Tetsugaku Shiso Ronso, (35) 18 - 30, Jan. 2017, Scientific journal
  

  PermalinkURL of the attached file
• The Concept of Matter and the Immateriality of Angels: An Aspect of Thomas Aquinas’s Angelology
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, 京大中世哲学研究会, (35) 22 - 40, Nov. 2016, Scientific journal
  

  URL of the attached file
• The Diversity of individuatio and principium individuationis ― an aspect of Thomas Aquinas’s thought on individuals ―
  ISHIDA Ryuta
  Philosophy (Tetsugaku) (The Philosophical Association of Japan), 日本哲学会 ; 1952-, (67) 153 - 168, Apr. 2016, Scientific journal
  

  URL of the attached file
• Thomas Aquinas and Intelligible Matter: Concerning the Principle of Individuation
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 22 - 38, Nov. 2015, Scientific journal
  

  PermalinkURL of the attached file
• The Individuation of Human Souls in the Thought of Thomas Aquinas: Concerning the Relationship between the Human Soul and Body
  Ryuta Ishida
  Studies in Medieval Thought, 中世哲学会 ; 1958-, (57) 55 - 68, Sep. 2015, Scientific journal
  

  URL of the attached file
• A Human as an Individual in Thomas Aquinas: the Individuation of the soul
  ISHIDA Ryuta
  University of Tsukuba, 2014, Master thesis

MISC

• A Translation of Thomas Aquinas’s Quaestiones disputatae de malo, q. 16, ‘De daemonibus’, a. 5
  Ryuta Ishida
  Jimbungaku: Studies in Humanities, (215) 1 - 25, Mar. 2025, Others
• Franziska VAN BUREN, An Introduction to the Metaphysical Thought of John Peckham: Text and Translations of Selected Quodlibetal Questions and the Summa de Esse et Essentia with Commentary
  Ryuta Ishida
  Medieval European Studies, (16) 184 , Dec. 2024, Book review
• David di DINANT, Mente Materia Dio. Mens Hyle Deus
  Ryuta Ishida
  Medieval European Studies, (16) 158 - 159, Dec. 2024, Book review
• Jeschke, Thomas. “Paul of Venice and the Plurality of Forms and Souls: Studying the Reception of Scholastic Hylomorphism in Fifteenth-Century Padua”
  Ryuta Ishida
  Veritas: Kyodai Studies in Mediaeval Philosophy, (43) 91 - 92, Nov. 2024, Book review
• A Translation of Duns Scotus’s Lectura in libros Sententiarum, II, d.3, p.1, q.6 (up to n.177)
  Ryuta Ishida; Hiroyuki Homma
  Journal for the Philosophical Moments in Tsukuba, (32) 49 - 62, Mar. 2024, Others
  

  PermalinkURL of the attached file
• A Translation of Thomas Aquinas’s Quaestiones disputatae de malo, q. 16, ‘De daemonibus’, a. 4
  Ryuta Ishida
  Jimbungaku: Studies in Humanities, (213) 47 - 73, Mar. 2024, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, cap. 8
  Ryuta Ishida; Noriaki Takaishi
  Ethics, (39) 65 - 75, Mar. 2024, Others
  

  PermalinkURL of the attached file
• BONAVENTURE, Thomas d’AQUIN, Jean Duns SCOT, Les puissances de l’âme
  Ryuta Ishida
  Medieval European Studies, (15) 168 - 168, Dec. 2023, Book review
• Löwe, Can Laurens. “Bonaventure on the Soul and Its Powers”
  Ryuta Ishida
  Veritas: Kyodai Studies in Mediaeval Philosophy, (42) 62 - 63, Nov. 2023, Book review
• Frost, Gloria. “Aquinas on Passive Powers”
  Ryuta Ishida
  Veritas: Kyodai Studies in Mediaeval Philosophy, (42) 63 - 63, Nov. 2023, Book review
• Simpson, Daniel J. “Potens per accidens sine accidentibus: Ockham on Material Substances and Their Essential Powers”
  Ryuta Ishida
  Veritas: Kyodai Studies in Mediaeval Philosophy, (42) 63 - 64, Nov. 2023, Book review
• A Translation of Thomas Aquinas’s Quaestiones disputatae de malo, q. 16, ‘De daemonibus’, aa. 2-3
  Ryuta Ishida
  Jimbungaku: Studies in Humanities, (212) 1 - 39, Nov. 2023, Others
  

  URL of the attached fileDOI URL
• Thomas Aquinas’s Theory of Species: From the logical viewpoint to the metaphysical viewpoint
  ISHIDA Ryuta
  Doshisha Annual of Philosophy, (46) 99 - 100, Sep. 2023, Summary national conference
• 〔誌上合評会〕アダム・タカハシ『哲学者たちの天球――スコラ自然哲学の形成と展開』〈書評 2〉
  石田隆太
  中世思想研究, (65) 147 - 151, Sep. 2023, Book review
• A Translation of Duns Scotus’s Lectura in libros Sententiarum, II, d.3, p.1, q.5
  ISHIDA Ryuta; HOMMA Hiroyuki
  Journal for the Philosophical Moments in Tsukuba, (31) 35 - 42, Mar. 2023, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’s Quaestiones disputatae de malo, q. 16, ‘De demonibus’, a. 1
  Ryuta Ishida
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (24) 49 - 62, Mar. 2023, Others
  

  PermalinkURL of the attached file
• アダム・タカハシ著 哲学者たちの天球
  石田隆太
  図書新聞, (3581) 3 - 3, Mar. 2023, Book review
• Lidia LANZA & Marco TOSTE (eds.), Summistae: The Commentary Tradition on Thomas Aquinas’ Summa Theologiae from the 15th to the 17th Centuries
  Ryuta ISHIDA
  Medieval European Studies, (14) 229 - 230, Dec. 2022, Book review
• Cole, Lee M. “Between Actuality and Nonbeing: Prime Matter Revisited”
  Ryuta ISHIDA
  Veritas: Kyodai Studies in Mediaeval Philosophy, (41) 87 - 87, Nov. 2022, Book review
  

  Permalink
• Perrin, D. “Le beau dans son rapport au bien selon saint Thomas d’Aquin”
  Ryuta ISHIDA
  Veritas: Kyodai Studies in Mediaeval Philosophy, (41) 83 - 84, Nov. 2022, Book review
  

  Permalink
• Fidora, Alexander. “The Philosophical Sources of Bonaventure’s De Reductione Artium ad Theologiam”
  Ryuta ISHIDA
  Veritas: Kyodai Studies in Mediaeval Philosophy, (41) 69 - 69, Nov. 2022, Book review
  

  Permalink
• Suarez-Nani, Tiziana. “Materia e forma nel commento di Francesco della Marca sul II° libro delle Sentenze: l’uomo, l’snima, l’angelo e i cieli”
  Ryuta ISHIDA
  Veritas: Kyodai Studies in Mediaeval Philosophy, (41) 68 - 68, Nov. 2022, Book review
  

  Permalink
• Ile, Vlad. “Transcending natural philosophy or disregarding metaphysics? Albert the Great on humors, reason and intellect”
  Ryuta ISHIDA
  Veritas: Kyodai Studies in Mediaeval Philosophy, (41) 65 - 66, Nov. 2022, Book review
  

  Permalink
• Lidia Lanza and Marco Toste (eds.), Summistae: The Commentary Tradition on Thomas Aquinas’ Summa Theologiae from the 15th to the 17th Centuries
  Ryuta ISHIDA
  Studies in Medieval Thought, (64) 150 - 156, Sep. 2022, Book review
  

  PermalinkURL of the attached file
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, cap. 7
  Ryuta Ishida; Noriaki Takaishi
  Ethics, (38) 49 - 55, Mar. 2022, Others
  

  PermalinkURL of the attached file
• A Translation of Henry of Lübeck’s Quodlibet I, q. 19
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (23) 63 - 75, Mar. 2022, Others
  

  PermalinkURL of the attached file
• A Translation of Duns Scotus’s Lectura in libros Sententiarum, II, d.3, p.1, q.4 (nn.102–24)
  ISHIDA Ryuta; HOMMA Hiroyuki
  Journal for the Philosophical Moments in Tsukuba, (30) 60 - 68, Mar. 2022, Others
  

  PermalinkURL of the attached file
• A Translation of Pietro Pomponazzi’s De immortalitate animae (Chapter 5 – Chapter 8)
  ISHIDA Ryuta; TAKAISHI Noriaki
  Studies in Philosophy, (47) 33 - 51, Mar. 2022, Others
  

  URL of the attached fileDOI URL
• Josef STERN, James T. ROBINSON, and Yonatan SHEMESH (eds.), Maimonides’ Guide of the Perplexed in Translation: A History from the Thirteenth Century to the Twentieth
  ISHIDA Ryuta
  Medieval European Studies, (13) 163 - 163, Dec. 2021, Book review
• Nicola POLLONI, The Twelfth-Century Renewal of Latin Metaphysics: Gundissalinus’s Ontology of Matter and Form
  ISHIDA Ryuta
  Medieval European Studies, (13) 156 - 157, Dec. 2021, Book review
• Thomas D’AQUIN, L’éternité du monde
  ISHIDA Ryuta
  Medieval European Studies, (13) 135 - 136, Dec. 2021, Book review
• Perler, Dominik. “Suárez on the Unity of Material Substances”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 74 - 74, Nov. 2021, Book review
  

  Permalink
• Capriati, Giuseppe. “Quid est causa? The Debate on the Definition of ‘Cause’ in Early Jesuit Scholasticism”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 73 - 74, Nov. 2021, Book review
  

  Permalink
• Conti, A. D. “Paul of Venice on Individuation”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 62 - 63, Nov. 2021, Book review
  

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• Panarelli, Marilena. “Plants Changing Species. The Latin Debate on the transmutatio plantarum”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 60 - 61, Nov. 2021, Book review
  

  Permalink
• Kaukua, Jari. “Avicenna’s Outsourced Rationalism”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 53 - 54, Nov. 2021, Book review
  

  Permalink
• Demange, Dominique & Kedar, Yael. “Physical Action, Species, and Matter: The Debate between Roger Bacon and Peter John Olivi”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 53 - 53, Nov. 2021, Book review
  

  Permalink
• Case, Brendan. “Seraphicus Supra Angelicum: Universal Hylomorphism and Angelic Mutability”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 51 - 51, Nov. 2021, Book review
  

  Permalink
• Galluzzo, Gabriele. “To Grasp Something of the Thing Itself. Aquinas on Nominal and Real Definition”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 48 - 49, Nov. 2021, Book review
  

  Permalink
• Galluzzo, Gabriele. “The Problem of Universals and Its History. Some General Considerations”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 47 - 47, Nov. 2021, Book review
  

  Permalink
• LeNotre, Gaston G. “Determinate and Indeterminate Dimensions: Does Thomas Aquinas Change His Mind on Individuation?”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (40) 42 - 42, Nov. 2021, Book review
  

  Permalink
• Nicola Polloni, The Twelfth-Century Renewal of Latin Metaphysics: Gundissalinus’s Ontology of Matter and Form
  ISHIDA Ryuta
  Studies in Medieval Thought, (63) 118 - 124, Sep. 2021, Book review
  

  URL of the attached file
• A Translation of Nemesios’ De natura hominis, Chapter 1
  ISHIDA Ryuta
  Studia Neoplatonica, (20) 81 - 90, Aug. 2021, Others
  

  URL of the attached file
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, cap. 6
  Ryuta Ishida; Noriaki Takaishi
  Ethics, (37) 239 - 251, Mar. 2021, Others
  

  PermalinkURL of the attached file
• A Translation of Thomas of Sutton’s Quodlibet I, q. 21
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (22) 49 - 63, Mar. 2021, Others
  

  PermalinkURL of the attached file
• A Translation of Duns Scotus’s Lectura in libros Sententiarum, II, d.3, p.1, q.4 (up to n.101)
  Ryuta Ishida; Hiroyuki Homma
  Journal for the Philosophical Moments in Tsukuba, The Society for Study of Philosophy, University of Tsukuba, (29) 127 - 144, Mar. 2021, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’s De mixtione elementorum
  ISHIDA Ryuta
  Ókortudományi Folyóirat, (13) 1 - 13, Mar. 2021, Others
  

  PermalinkURL of the attached file
• A Translation of Pietro Pomponazzi’s De immortalitate animae (up to Chapter 4)
  ISHIDA Ryuta; TAKAISHI Noriaki
  Studies in Philosophy, (46) 97 - 117, Mar. 2021, Others
  

  PermalinkURL of the attached file
• John SKALKO, Disordered Actions: A Moral Analysis of Lying and Homosexual Activity
  ISHIDA Ryuta
  Medieval European Studies, (12) 171 - 172, Dec. 2020, Book review
• Juan Fernando SELLÉS, El intelecto agente y los filósofos: Venturas y desventuras del supremo hallazgo aristotélico sobre el hombre
  ISHIDA Ryuta
  Medieval European Studies, (12) 171 - 171, Dec. 2020, Book review
• Duns SCOTO (a cura di Davide RISERBATO), L’essere degli accidenti nell’Eucaristia
  ISHIDA Ryuta
  Medieval European Studies, (12) 170 - 170, Dec. 2020, Book review
• Alberto ARA, Angeli e Sostanze Separate: L’idea di materia spiritualis nel Medioevo
  ISHIDA Ryuta
  Medieval European Studies, (12) 147 - 148, Dec. 2020, Book review
• Resnick, Irven M. “Albert the Great on Nature and the Production of Hermaphrodites: Theoretical and Practical Considerations”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 75 - 75, Nov. 2020, Book review
  

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• Nguyen, Doyen. “Why the Thomistic Defense of “Brain Death” Is Not Thomistic: An Analysis from the Perspectives of Classical Philosophy and Contemporary Biophilosophy”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 70 - 71, Nov. 2020, Book review
  

  Permalink
• Vater, Carl. A. “The Role of the Virtus Formativa In St. Thomas Aquinas’s Account of Embryogenesis”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 70 - 70, Nov. 2020, Book review
  

  Permalink
• D’Ettore, Domenic. “One Is in the Definition of All: The Renaissance Thomist Controversy Over a “Rule” for Names Said by Analogy”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 69 - 70, Nov. 2020, Book review
  

  Permalink
• Signoret, Luc. “La création passive dans le Commentaire des Sentences de saint Thomas d’Aquin (In II Sent., d. 1, q. 1, a. 2): Contribution à l’histoire d’un débat médiéval”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 66 - 66, Nov. 2020, Book review
  

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• Colish, Marcia L. “Early Scholastic Angelology”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 63 - 63, Nov. 2020, Book review
  

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• Åkerlund, Erik. “Suárez and the Metaphysics of Democracy”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 61 - 62, Nov. 2020, Book review
  

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• Benevich, Fedor. “The Priority of Natures against The Identity of Indiscernibles: Alexander of Aphrodisias, Yaḥyā b. ‘Adī, and Avicenna on Genus as Matter”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 59 - 60, Nov. 2020, Book review
  

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• Machula, Tomáš. “Theology as Wisdom: Renaissance and Modern Scholastic Commentaries on Aquinas”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (39) 53 - 54, Nov. 2020, Book review
  

  Permalink
• John Skalko, Disordered Actions: A Moral Analysis of Lying and Homosexual Activity
  ISHIDA Ryuta
  Studies in Medieval Thought, (62) 132 - 137, Sep. 2020, Book review
  

  URL of the attached file
• 中世ヨーロッパの思想家の研究人生から「大学」と「PhD」の意味を探る
  Ryuta Ishida
  アカリク公式note, Jun. 2020, Others
  

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• Small portraits: Early-career researchers introducing their work
  Ryuta Ishida
  Iberica Philosophica Mediaevalia, Jun. 2020, Others
  

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• A Translation of Peter of John Olivi’s De perlegendis philosophorum libris
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (21) 49 - 62, Mar. 2020, Others
  

  PermalinkURL of the attached file
• A Translation of Duns Scotus’s Lectura in libros Sententiarum, II, d.3, p.1, qq.2–3
  Ryuta Ishida; Hiroyuki Homma
  Journal for the Philosophical Moments in Tsukuba, (28) 75 - 88, Mar. 2020, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, cap. 5
  Ryuta Ishida; Noriaki Takaishi
  Ethics, (36) 127 - 141, Mar. 2020, Others
  

  PermalinkURL of the attached file
• A Translation of John Pecham’s Quaestiones de aeternitate mundi, q. 1
  ISHIDA Ryuta
  Ókortudományi Folyóirat, (12) 65 - 84, Mar. 2020, Others
  

  PermalinkURL of the attached file
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, capp. 3–4
  ISHIDA Ryuta; TAKAISHI Noriaki
  Studies in Philosophy, (45) 205 - 228, Mar. 2020, Others
  

  URL of the attached fileDOI URL
• John Peckham and Eternity of the World
  Ryuta Ishida
  Miscellanea Philosophica: The Tetsugaku Shiso Ronso, (38) 91 - 91, Jan. 2020, Summary national conference
  

  Permalink
• Panzica, Aurora. “L’hypothèse de la cessation des mouvements célestes au XIVe siècle: Nicole Oresme, Jean Buridan et Albert de Saxe”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 63 - 64, Nov. 2019, Book review
  

  Permalink
• Bastit, Michel. “Encore sur l’individu: retour à la maison par la route de Stagire ... sive retractatio retractationis”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 60 - 60, Nov. 2019, Book review
  

  Permalink
• Brower, Jeffrey E. “Aquinas on the Problem of Universals”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 57 - 58, Nov. 2019, Book review
  

  Permalink
• Löwe, Can Laurens. “Aristotle and John Buridan on the Individuation of Causal Powers”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 56 - 57, Nov. 2019, Book review
  

  Permalink
• De Carvalho, Mário. “The Coimbra Jesuits’ Doctrine on Universals (1577-1606)”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 52 - 53, Nov. 2019, Book review
  

  Permalink
• Galluzzo, Gabriele. “Aquinas on the Genus and Differentia of Separate Substances”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 51 - 51, Nov. 2019, Book review
  

  Permalink
• Borgo, Marta. “Universals and the Trinity: Aquinas’s Commentary on Book I of Peter Lombard’s Sentences”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 50 - 50, Nov. 2019, Book review
  

  Permalink
• Di Giovanni, Matteo. “Individuation by Matter in Averroes’ Metaphysics”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 49 - 49, Nov. 2019, Book review
  

  Permalink
• McGinnis, Jon. “Logic and Science: The Role of Genus and Difference in Avicenna’s Logic, Science and Natural Philosophy”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 48 - 49, Nov. 2019, Book review
  

  Permalink
• DePauw, Thomas. “The Principles of Distinction in Material Substances in the Philosophy of St. Thomas and St. Albert”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (38) 42 - 42, Nov. 2019, Book review
  

  Permalink
• A Translation of Peter of John Olivi’s Quodlibeta III, q. 4
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (20) 59 - 67, Mar. 2019, Others
  

  PermalinkURL of the attached file
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, cap. 2
  ISHIDA Ryuta; TAKAISHI Noriaki
  Ethics, (35) 159 - 172, Mar. 2019, Others
  

  PermalinkURL of the attached file
• A Translation of Duns Scotus’s Commentary in libros Sententiarum (Ordinatio), II, d.3, p.1, q.7
  HOMMA Hiroyuki; ISHIDA Ryuta
  Journal for the Philosophical Moments in Tsukuba, (27) 104 - 128, Mar. 2019, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’s Sententia libri de anima, lib. 3, cap. 1
  ISHIDA Ryuta; TAKAISHI Noriaki
  Ókortudományi Folyóirat, (11) 1 - 25, Mar. 2019, Others
  

  PermalinkURL of the attached file
• Specification of Angels and Francisco Suárez
  ISHIDA Ryuta
  Miscellanea Philosophica: The Tetsugaku Shiso Ronso, (37) 45 - 45, Jan. 2019, Summary national conference
  

  Permalink
• Margelidon, Philippe-Marie. “Note sur l’individuation et l’essence”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 57 - 57, Nov. 2018, Book review
  

  Permalink
• Löwe, Can Laurens. “The Blessed Virgin and the Two Time-Series: Hervaeus Natalis and Durand of St. Pourçain on Limit Decision”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 63 - 63, Nov. 2018, Book review
  

  Permalink
• Nieuwenhove, Rik Van. ““Recipientes per contemplationem, tradentes per actionem”: The Relation between the Active and Contemplative Lives according to Thomas Aquinas”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 59 - 59, Nov. 2018, Book review
  

  Permalink
• Porro, Pasquale. “La totalité peut-elle être un attribut divin? Les questions De totalitate Dei d’Henri de Gand”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 51 - 52, Nov. 2018, Book review
  

  Permalink
• Brower, Jeffrey E. “Aquinas on the Individuation of Substances”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 50 - 51, Nov. 2018, Book review
  

  Permalink
• Dyke, Christian Van. “I See Dead People: Disembodied Souls and Aquinas’s Two-Person Problem”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 47 - 48, Nov. 2018, Book review
  

  Permalink
• Sorensen, Jennifer. “Aquinas on the Nature of the Human Soul: Starting Points in Article 2 of On Spiritual Creatures”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 40 - 41, Nov. 2018, Book review
  

  Permalink
• Minerd, Matthew K. “Beyond Non-Being: Thomistic Metaphysics on Second Intentions, Ens morale, and Ens artificiale”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 40 - 40, Nov. 2018, Book review
  

  Permalink
• Cory, Therese Scarpelli. “Knowing as Being? A Metaphysical Reading of the Identity of Intellect and Intelligibles in Aquinas”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 39 - 40, Nov. 2018, Book review
  

  Permalink
• Novotný, Daniel D. “Sebastian Izquierdo on Universals: A Way Beyond Realism and Nominalism?”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (37) 39 - 39, Nov. 2018, Book review
  

  Permalink
• A Translation of Thomas Aquinas’ In Librum beati Dionysii de divinis nominibus expositio, Prologue and Lecture 1 (up to Paragraph 16)
  ISHIDA Ryuta
  Studia Neoplatonica, (16) 69 - 79, Mar. 2018, Others
  

  URL of the attached file
• A Translation of Thomas Aquinas’s Quæstio disputata de spiritualibus creaturis, a.11
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (19) 57 - 77, Mar. 2018, Others
  

  PermalinkURL of the attached file
• A Translation of Duns Scotus’s Lectura in libros Sententiarum, II, d.3, p.1, q.1
  ISHIDA Ryuta; HOMMA Hiroyuki
  Journal for the Philosophical Moments in Tsukuba, (26) 123 - 138, Mar. 2018, Others
  

  URLURL of the attached fileDOI URL
• De l’immédiateté de la constitution mentale des objets: l’écho de la notion d’intentionnalité médiévale dans la pensée de Pierre de Jean Olivi
  Pierre BONNEELS (Tr; ISHIDA Ryuta
  Journal for the Philosophical Moments in Tsukuba, (26) 47 - 64, Mar. 2018
  

  URLURL of the attached fileDOI URL
• A Translation of Thomas Aquinas’ Quæstio disputata de spiritualibus creaturis, a.10
  ISHIDA Ryuta
  Ókortudományi Folyóirat, (10) 1 - 54, Mar. 2018, Others
  

  PermalinkURL of the attached file
• Übersetzung von Baumgartens Metaphysica. Der vierte Teil: die natürliche Theologie, das erste Kapitel: der Begriff von Gott, der dritte Abschnitt: der Wille Gottes
  ISHIDA Ryuta; HIGAKI Yoshishige
  Journal for the Philosophical Moments in Tsukuba, (26) 108 - 122, Mar. 2018, Others
  

  URLURL of the attached fileDOI URL
• Übersetzung mit Kommentar von Baumgartens Metaphysica: Der erste Teil: die Ontologie, das zweite Kapitel, vom ersten Abschnitt bis zum dritten Abschnitt
  KURIHARA Takuya; ISHIDA Ryuta; HIGAKI Yoshishige
  Journal for the Philosophical Moments in Tsukuba, (26) 83 - 107, Mar. 2018, Others
  

  URLURL of the attached fileDOI URL
• Pour une lecture du De Veritate de Thomas d’Aquin
  Marc PEETERS; Tr; ISHIDA Ryuta; TSUZAKI Yoshinori
  Studies in Philosophy, (43) 55 - 75, Mar. 2018, Lecture materials
  

  PermalinkURL of the attached file
• Marmodoro, Anna & Page, Ben. “Aquinas on Forms, Substances and Artifacts”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 131 - 131, Nov. 2017, Book review
  

  Permalink
• Finley, John. “The Metaphysics of Gender: A Thomistic Approach”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 129 - 129, Nov. 2017, Book review
  

  Permalink
• Bastit, Michel. “Individuation : une retractatio et quelque précisions”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 127 - 128, Nov. 2017, Book review
  

  Permalink
• Pawl, Timothy & Spencer, Mark K. “Christologically Inspired, Empirically Motivated Hylomorphism”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 125 - 126, Nov. 2017, Book review
  

  Permalink
• König-Pralong, Catherine. “Omnes homines natura scire desiderant. Anthropologie philosophique et distinction sociale”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 119 - 120, Nov. 2017, Book review
  

  Permalink
• Colley, Caleb Glenn. “The Plurality of Substantial Forms in John Pecham”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 115 - 115, Nov. 2017, Book review
  

  Permalink
• Guldentops, Guy. “Two «Platonic» Scholastics on the Soul’s Presence in the Body : John Quidort and Giles of Viterbo”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 111 - 111, Nov. 2017, Book review
  

  Permalink
• Loewe, Can Laurens. “Mind over Matter : Aquinas’s Transformation of Aristotle’s Definition of «Change»”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 110 - 111, Nov. 2017, Book review
  

  Permalink
• Salas, Victor M. “Bonaventure on the Vanity of Being: Towards a Metaphysic of Ecclesiastes”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 106 - 106, Nov. 2017, Book review
  

  Permalink
• Kerr, Gaven. “Aquinas, Stump, and the Nature of a Simple God”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (36) 105 - 105, Nov. 2017, Book review
  

  Permalink
• A Translation of Thomas Aquinas’s Quæstio disputata de spiritualibus creaturis, a.8
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, 筑波大学宗教学・比較思想学研究会, (18) 77 - 111, Mar. 2017, Others
  

  URL of the attached file
• Baumgartens Gottesbegriff ― Übersetzung von Baumgartens Metaphysica. Der vierte Teil: die natürliche Theologie, das erste Kapitel: der Begriff von Gott, der erste Abschnitt: die Existenz Gottes ―
  HIGAKI Yoshishige; ISHIDA Ryuta
  Studies in Philosophy, (42) 19 - 30, Mar. 2017, Others
  

  PermalinkURL of the attached file
• A Translation of Thomas Aquinas’s Quæstio disputata de spiritualibus creaturis, a.9
  ISHIDA Ryuta
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (25) 83 - 126, Mar. 2017, Others
  

  URL of the attached fileDOI URL
• Übersetzung von Baumgartens Metaphysica. Der vierte Teil: die natürliche Theologie, das erste Kapitel: der Begriff von Gott, der zweite Abschnitt: der Verstand Gottes
  ISHIDA Ryuta; HIGAKI Yoshishige
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (25) 72 - 82, Mar. 2017, Others
  

  URL of the attached fileDOI URL
• A Translation of Duns Scotus’s Quaestiones in primum librum Perihermeneias, q.3
  UCHIYAMA Mariko; ISHIDA Ryuta; OYAMADA Keiichi; HOMMA Hiroyuki
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, 25(25) 65 - 71, Mar. 2017, Others
  

  URL of the attached fileDOI URL
• A Translation of Duns Scotus’s Quaestiones in primum librum Perihermeneias, q.2
  OYAMADA Keiichi; ISHIDA Ryuta; UCHIYAMA Mariko; HOMMA Hiroyuki
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (25) 48 - 64, Mar. 2017, Others
  

  URL of the attached fileDOI URL
• A Translation of Duns Scotus’s Quaestiones in primum librum Perihermeneias, q.1
  HOMMA Hiroyuki; ISHIDA Ryuta; UCHIYAMA Mariko; OYAMADA Keiichi
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (25) 39 - 47, Mar. 2017, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’ Quæstio disputata de spiritualibus creaturis, a.7
  ISHIDA Ryuta
  Ókortudományi Folyóirat, (9) 47 - 63, Mar. 2017, Others
  

  PermalinkURL of the attached file
• Can we say that the Unique God and the Truine Persons are each individual? : an aspect of Scholastics concerning an application of the concept of individual to God
  ISHIDA Ryuta
  Miscellanea Philosophica: The Tetsugaku Shiso Ronso, (35) 28 - 28, Jan. 2017, Summary national conference
  

  Permalink
• A Report on the JSMES Seminar for Young Researchers 2015②: Why Read Manuscripts for the Study of Medieval Philosophy?
  ISHIDA Ryuta
  Medieval European Studies, (8) 318 - 320, Dec. 2016, Meeting report
• Spruyt, Joke. “The Introductiones Montanae maiores: A Student’s Guide to Logic”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 64 - 65, Nov. 2016, Book review
  

  Permalink
• Gambra, José Miguel. “To Be in a Subject and Accident”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 64 - 64, Nov. 2016, Book review
  

  Permalink
• Spencer, Mark K. “The Category of habitus: Accidents, Artifacts, and Human Nature”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 62 - 63, Nov. 2016, Book review
  

  Permalink
• Hancock, Curtis L. “The One and the Many: The Ontology of Science in Aristotle and Thomas Aquinas”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 58 - 58, Nov. 2016, Book review
  

  Permalink
• Petrescu, Lucian. “John Duns Scotus and the Ontology of Mixture”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 57 - 57, Nov. 2016, Book review
  

  Permalink
• D’Ettore, Domenic. “The Fifteenth-Century Thomist Dispute over Participation in an Analogous Concept: John Capreolus, Dominic of Flanders, and Paul Soncinas”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 56 - 56, Nov. 2016, Book review
  

  Permalink
• Lafleur, Claude & Piché, David... “The Questions circa litteram de uniuersalibus and Expositio littere secunde partis prohemii of the Commentary on the Isagoge Attributed (?) to John Pagus (I. Introduction and Doctrinal Study)...,”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 55 - 56, Nov. 2016, Book review
  

  Permalink
• Cory, Therese Scarpelli. “Rethinking Abstractionism: Aquinas’s Intellectual Light and Some Arabic Sources”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 55 - 55, Nov. 2016, Book review
  

  Permalink
• Petrescu, Lucian. “The threefold object of the scientific knowledge Pseudo-Scotus and the literature on the Meteorologica in fourteenth-century Paris”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 53 - 53, Nov. 2016, Book review
  

  Permalink
• Bychkov, Oleg. “ “But Everyone Experiences the Opposites”: John Duns Scotus’s Aesthetic Defense of Anselm’s “Proof” of the Existence of God in Light of Present-day Thought”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 52 - 53, Nov. 2016, Book review
  

  Permalink
• Whitehouse, Dominic. “Peter Olivi on Human Self-Knowledge: a Reassessment”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 52 - 52, Nov. 2016, Book review
  

  Permalink
• Saak, Eric Leland. “In the Wake of Lombard: The Reception of Augustine in the Early Thirteenth Century”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (35) 48 - 48, Nov. 2016, Book review
  

  Permalink
• A Translation of Thomas Aquinas’ Quaestio disputata de spiritualibus creaturis, a.6
  ISHIDA Ryuta
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (24) 39 - 63, Mar. 2016, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’ Quaestio disputata de spiritualibus creaturis, a.5
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, 筑波大学宗教学・比較思想学研究会, (17) 105 - 127, Mar. 2016
  

  URL of the attached file
• A Translation of Thomas Aquinas’ Quaestio disputata de spiritualibus creaturis, a.4
  ISHIDA Ryuta
  Ókortudományi Folyóirat, (8) 31 - 56, Mar. 2016
  

  PermalinkURL of the attached file
• Übersetzung mit Kommentar von Baumgartens Metaphysica ― Der erste Teil: die Ontologie, das erste Kapitel ―
  HIGAKI Yoshishige; ISHIDA Ryuta; KURIHARA Takuya
  Studies in Philosophy, (41) 43 - 77, Feb. 2016
  

  PermalinkURL of the attached file
• Immateriality of Angels and Understanding Matter as Potentia: Thomas Aquinas's Concept of Matter
  ISHIDA Ryuta
  Miscellanea Philosophica: The Tetsugaku Shiso Ronso, (34) 19 - 20, Jan. 2016, Summary national conference
  

  Permalink
• Svoboda, D. and Sousedík, P. “Mathematical One and Many: Aquinas on Number”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 64 - 65, Nov. 2015, Book review
  

  Permalink
• Storck, Michael. “Pars integralis in St. Thomas Aquinas and the Parts of Living Substances”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 64 - 64, Nov. 2015, Book review
  

  Permalink
• Possenti, V. “Thomisme et pensée politique chez Jacques Maritain”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 61 - 61, Nov. 2015, Book review
  

  Permalink
• Putallaz, F.-X. “Politique et métaphysique selon Thomas d’Aquin”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 60 - 61, Nov. 2015, Book review
  

  Permalink
• Daguet, F. “Le bien commun dans la théologie politique de saint Thomas d’Aquin”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 59 - 59, Nov. 2015, Book review
  

  Permalink
• Dahan, G. “Thomas d’Aquin : la politique et l’Écriture”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 58 - 58, Nov. 2015, Book review
  

  Permalink
• Margelidon, Ph.-M. and Floucat, Y. “À propos de la sixième voie de Jacques Maritain”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 57 - 58, Nov. 2015, Book review
  

  Permalink
• Van Dyke, Christiana. “The End of (Human) Life as We Know It: Thomas Aquinas on Persons, Bodies and Death”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 50 - 51, Nov. 2015, Book review
  

  Permalink
• Toner, Patrick. “St. Thomas Aquinas on the Problem of Too Many Thinkers”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 50 - 50, Nov. 2015, Book review
  

  Permalink
• Kronen, John and Menssen, Sandra. “Hylomorphism and Design: A Reconsideration of Aquinas’s Fifth Way”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 49 - 50, Nov. 2015, Book review
  

  Permalink
• Janssens, Jules. “A Survey of Thomas’s Explicit Quotations of Avicenna in the Summa contra Gentiles”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (34) 42 - 43, Nov. 2015, Book review
  

  Permalink
• A Translation of Thomas Aquinas’ Quaestio disputata de spiritualibus creaturis, a.3
  Ryuta Ishida
  Tsukuba Journal of Religious Studies and Comparative Thoughts, 筑波大学宗教学・比較思想学研究会, (16) 57 - 91, Mar. 2015, Others
  

  URL of the attached file
• The Horizon of the Individual in Thomas Aquinas: from the viewpoint of Substances and Scientific Objects
  ISHIDA Ryuta
  Miscellanea Philosophica: The Tetsugaku Shiso Ronso, (33) 17 - 18, Jan. 2015
  

  Permalink
• Reichmann, James B. “Edith Stein, Thomas Aquinas, and the Principle of Individuation”
  ISHIDA Ryuta
  Veritas: Kyodai Studies in Mediaeval Philosophy, (33) 69 - 69, Nov. 2014, Book review
  

  Permalink
• An Individual Man according to Thomas Aquinas
  ISHIDA Ryuta
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (22) 165 - 167, Mar. 2014, Report research institution
  

  URL of the attached file
• A Translation of Thomas Aquinas’ Quaestio disputata de spiritualibus creaturis, a.2
  ISHIDA Ryuta
  Journal for the Philosophical Moments in Tsukuba, 筑波大学哲学研究会, (22) 129 - 153, Mar. 2014, Others
  

  URL of the attached fileDOI URL
• A Translation of Thomas Aquinas’ Quaestio disputata de spiritualibus creaturis, a.1
  ISHIDA Ryuta
  Tsukuba Journal of Religious Studies and Comparative Thoughts, (15) 33 - 57, Mar. 2014, Others
  

  PermalinkURL of the attached file

Books etc

• 西洋中世文化事典
  西洋中世学会
  丸善出版, 03 Dec. 2024, Contributor, 「天使と悪魔」「創造論と世界の永遠性」
• Il problema estetico in Tommaso d’Aquino
  Tadahiko Wada; Ryuta Ishida; Sawa Ishii
  Keio University Press, 30 Oct. 2022, Joint translation
• デカルト全書簡集〈第4巻〉1640‐1641
  大西 克智; 津崎 良典
  知泉書館, 29 Feb. 2016, Joint translation, [Translation] Letters 270, 279, 312-314; [Others] Indexes of Names, Subjects, Primary Sources
  

  Amazon URL

Presentations

• How did Thomas Aquinas think the prime matter exists
  Ryuta Ishida
  73rd Annual Meeting of the Japanese Society of Medieval Philosophy, 09 Nov. 2024, Oral presentation
• False Happiness and True Happiness: Rethinking the Doctrine of Happiness in Boethius’ Consolation of Philosophy
  Ryuta Ishida
  75th Annual Meeting of the Japanese Society for Ethics, 29 Sep. 2024, Oral presentation
• How the Prime Matter was Identified with God: David of Dinant Reconsidered
  Ryuta Ishida
  2024 Meeting of the Societas Philosophiae Doshisha, 15 Sep. 2024, Oral presentation
• トマス・アクィナスの日本上陸：ヴァリニャーノ『日本のカテキズモ』における神の存在証明
  石田隆太
  同志社大学文化学会教員懇話会, 10 Jul. 2024, Oral presentation
• Five Ways and Teleology: Aquinas’s Reception in Early Modern Japan and China
  Ryuta Ishida
  Symposium Thomisticum VII, 06 Jun. 2024, 06 Jun. 2024, 08 Jun. 2024, Public symposium
• Thomas Aquinas and the Transcendentality of Beauty
  Ryuta ISHIDA
  Medieval Philosophy Workshop, 03 Dec. 2022, Nominated symposium
• Transcendentality of Beauty: A Reconsideration of Thomas Aquinas’s Thought on Beauty
  Ryuta ISHIDA
  71st Annual Meeting of the Japanese Society of Medieval Philosophy, 12 Nov. 2022, Oral presentation
• Quest for the Principle of Individuation and Distinction of Angels as Its End: A Rereading of Duns Scotus’s Theory of Individuation
  Ryuta ISHIDA
  75th Annual Meeting of the Kansai Philosophical Association, 22 Oct. 2022, Oral presentation
• Thomas Aquinas on Avarice: Quaestiones disputatae de malo, q. 13
  ISHIDA Ryuta
  271st Meeting of the Kyodai Society of Medieval Philosophy, 24 Sep. 2022, Oral presentation
• Thomas Aquinas’s Theory of Species: From the logical viewpoint to the metaphysical viewpoint
  ISHIDA Ryuta
  2022 Meeting of the Societas Philosophiae Doshisha, 18 Sep. 2022, Oral presentation
• 「天使の哲学」再考：西洋中世哲学の可能性
  石田隆太
  桜美林哲学セミナー 2021年度研究発表会, 01 Mar. 2022, Invited oral presentation
• How to use Simplicius’s Commentary on Categories: the case of Thomas Aquinas
  ISHIDA Ryuta
  Annual Meeting of MIPS 2020, 05 Nov. 2020, 13 Dec. 2020, Oral presentation
• What Was the Spiritual Matter?: Bonaventure’s hylomorphism
  Ryuta Ishida
  69th Annual Meeting of the Japanese Society of Medieval Philosophy, 07 Nov. 2020, Oral presentation
• Thomas Aquinas’s ‘A Study of Evil’: Quaestiones disputatae de malo, q. 1
  Ryuta Ishida
  Philosophy Online Seminar, 04 Sep. 2020, Oral presentation
• Thomas Aquinas on Mixture and the Significance of De mixtione elementorum
  Ryuta Ishida
  262nd Meeting of the Kyodai Society of Medieval Philosophy, 18 Jul. 2020, Oral presentation
• Peter of John Olivi and the Problem of Individuation
  ISHIDA Ryuta
  68th Annual Meeting of the Japanese Society of Medieval Philosophy, 09 Nov. 2019, Oral presentation
• John Peckham and Eternity of the World
  ISHIDA Ryuta
  40th Annual Meeting of University of Tsukuba Philosophical Association, 19 Oct. 2019, Invited oral presentation
• Specification of the Celestial Bodies and the Angels: Thomas Aquinas and theory of species
  ISHIDA Ryuta
  Annual Meeting of MIPS 2018, 27 Oct. 2018, Oral presentation
• Specification of Angels and Francisco Suárez
  ISHIDA Ryuta
  39th Annual Meeting of University of Tsukuba Philosophical Association, 20 Oct. 2018, Oral presentation
• Analogy from Celestial Bodies: on the arguments over the species of angels
  ISHIDA Ryuta
  10th Annual Meeting of the Japan Society for Medieval European Studies, 23 Jun. 2018, Oral presentation
• Quantification and Abstraction of the Individual: from the individuation theory by Henry of Lübeck
  ISHIDA Ryuta
  77th Annual Meeting of the Philosophical Association of Japan, 19 May 2018, Oral presentation
• Reconstruct Species-as-Individuality Thesis from the Viewpoint of History of Philosophy: Thomas Aquinas and Michael Ghiselin
  ISHIDA Ryuta
  Tetsugaku Dynamite!! (Annual Meeting of Japan Aristotelian Society) 2017, 26 Dec. 2017, Oral presentation
• Transcendentia and individuum: the case of Thomas Aquinas
  ISHIDA Ryuta
  Annual Meeting of MIPS 2017, 28 Oct. 2017, Oral presentation
• Attempt to Investigate the Whole Cause (tota causa) or the Total Cause (causa totalis) of Individuation: Bonaventure and Thomas Aquinas
  ISHIDA Ryuta
  251st Meeting of the Kyodai Society of Medieval Philosophy, 30 Sep. 2017, Oral presentation
• Demonstration of Angels’ Specification: focusing on Thomas Aquinas’s Quæstio disputata de spiritualibus creaturis, a.8
  ISHIDA Ryuta
  9th Annual Meeting of the Japan Society for Medieval European Studies, 04 Jun. 2017, Poster presentation
• The Diversity of Single Principles and the Uniformity of Double Principles of Individuation: Thomas Aquinas and Bonaventure
  ISHIDA Ryuta
  76th Annual Meeting of the Philosophical Association of Japan, 20 May 2017, Oral presentation
• Les transcendantaux et le concept de l’individu: le cas de Thomas d’Aquin
  ISHIDA Ryuta
  Quatrième séminaire sur la philosophie française en langue française, 20 Mar. 2017, Invited oral presentation
• Thomas Aquinas and the Individuation of Angels: Concerning a Range in the Principle of Individuation
  ISHIDA Ryuta
  65th Annual Meeting of the Japanese Society of Medieval Philosophy, 12 Nov. 2016, Oral presentation
• Can we say that the Unique God and the Truine Persons are each individual? : an aspect of Scholastics concerning an application of the concept of individual to God
  ISHIDA Ryuta
  37th Annual Meeting of University of Tsukuba Philosophical Association, 15 Oct. 2016, Oral presentation
• Thomas Aquinas’s Reception of Porphyry: concerning the Relationship between Porphyry as a Logician and Porphyry as a Platonist
  ISHIDA Ryuta
  23rd Annual Meeting of Japanese Society for Neoplatonic Studies, 17 Sep. 2016, Oral presentation
• The Concept of Matter Seen from the Argument over the Immateriality of Angels: An Aspect of Thomas Aquinas’s Angelology
  ISHIDA Ryuta
  247th Meeting of the Kyodai Society of Medieval Philosophy, 03 Sep. 2016, Oral presentation
• Isn’t God an Individual? : Thomas Aquinas’s Logic of Individuals
  ISHIDA Ryuta
  6th Meeting of Societas Scholasticæ Philosophiæ Barocæ, 09 Jul. 2016, Oral presentation
• Ethical Use of De inventione: an aspect of Thomas Aquinas’s reception of Cicero
  ISHIDA Ryuta
  8th Annual Meeting of Japan Society for Medieval European Studies, 12 Jun. 2016, Poster presentation
• Immateriality of the Angels and the Understanding of Matter as Potential: the Concept of Matter in Thomas Aquinas
  ISHIDA Ryuta
  36th Annual Meeting of University of Tsukuba Philosophical Association, 10 Oct. 2015, Oral presentation
• How to Use the Writings of Saint Thomas Aquinas: On Pedro Gómez’s Compendium, Part 2
  ISHIDA Ryuta
  Tsukuba Global Science Week 2015, 29 Sep. 2015, Invited oral presentation
• Thomas Aquinas and Intelligible Matter: from the Viewpoint of the Theory of Individuation
  ISHIDA Ryuta
  242nd Meeting of the Kyodai Society of Medieval Philosophy, 25 Jul. 2015, Oral presentation
• The Thought and Meaning of Ps. Augustinus’ De spiritu et anima: in Case of its Reception in Thomas Aquinas
  ISHIDA Ryuta
  7th Annual Meeting of Japan Society for Medieval European Studies, 14 Jun. 2015, Poster presentation
• Thomas Aquinas on « individuatio »
  ISHIDA Ryuta
  74th Annual Meeting of the Philosophical Association of Japan, 16 May 2015, Oral presentation
• The Horizon of the Individual in Thomas Aquinas: from the Viewpoint of Substances and Scientific Objects
  ISHIDA Ryuta
  35th Annual Meeting of University of Tsukuba Philosophical Association, 15 Nov. 2014, Oral presentation
• Human Individuation in Thomas Aquinas: On the Principle of Individuation
  ISHIDA Ryuta
  63rd Annual Meeting of the Japanese Society of Medieval Philosophy, 08 Nov. 2014, Oral presentation
• ESSE ABSOLUTUM of Human Souls in Thomas Aquinas
  ISHIDA Ryuta
  6th Annual Meeting of Japan Society for Medieval European Studies, 22 Jun. 2014, Poster presentation
• An Individual Man according to Thomas Aquinas
  ISHIDA Ryuta
  Annual Meeting of the Tsukuba Association of Philosophy, 30 Oct. 2013, Oral presentation

Research Projects

• 中期エディット・シュタイン哲学の解明：現象学とスコラ哲学から新しい人格概念へ
  中村拓也、石田隆太
  日本学術振興会, 科学研究費助成事業, 2024/04 -2029/03, Coinvestigator, 基盤研究(C)
• Reconstruction of ‘Materialism’ in Western Medieval Philosophy: Univocity and Equivocation of Matter
  ISHIDA Ryuta
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research , 2022/04 -2027/03, Principal investigator, Early-Career Scientists
• From Ontology of Angels to Ethics of Angels: Foundations of Philosophical and Ethical Studies on Angelology
  ISHIDA Ryuta
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research , 2018/04 -2022/03, Principal investigator, Competitive research funding, Early-Career Scientists
• Reconstruction of the History of Philosophy on the Principle of Individuation: from Thomas to Suárez
  ISHIDA Ryuta
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research , 2017/04 -2020/03, Principal investigator, Competitive research funding, Grant-in-Aid for JSPS Fellows
• Examination of the theories of individuation in John Duns Scotus and Peter John Olivi
  ISHIDA Ryuta
  Eidgenössische Technische Hochschule Zürich, Young Researchers’ Exchange Programme between Japan and Switzerland 2018, 2018/11 -2019/03, Principal investigator, Competitive research funding
• Elucidation of Substantiality and Individuation of the Human Soul: on the Existence of Man as an Individual in Thomas Aquinas
  ISHIDA Ryuta
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research , 2015/04 -2017/03, Principal investigator, Competitive research funding, Grant-in-Aid for JSPS Fellows

Social Contribution

• 天使の哲学：西洋中世哲学へのいざない, KUNILABO, 人文学講座, 2021/09-2022/01, Seminar

Teaching Experience

• History of Western Medieval Philosophy
  Kyoto University
• Introduction to Reading Philosophy in English
  Doshisha University
• Philosophy
  Doshisha University
• Graduation Thesis
  Doshisha University
• History of Ancient and Medieval Western Philosophy
  Doshisha University
• Reading Philosophy in Latin
  Doshisha University
• Seminar in Philosophy
  Doshisha University
• Beginning Philosophy
  Doshisha University
• History of Western Thought
  Waseda University
• 数的思考と論理
  J. F. Oberlin University
• History of Western Thought
  Waseda University
• 地域文化研究
  東洋大学
• 哲学史
  東洋大学
• 哲学史演習
  筑波大学
• 哲学
  慶應義塾大学
• 哲学史演習
  筑波大学
• 哲学
  慶應義塾大学
• 哲学
  慶應義塾大学
• 哲学
  慶應義塾大学
• 西洋哲学史
  筑波大学