Curriculum Vitaes
Profile Information
- Affiliation
- Professor, Faculty of Law Department of International Legal Studies, Sophia University
- Degree
- Ph.D(Feb, 2011, The University of Tokyo)LL.M(May, 2004, Cornell Law School)
- Contact information
- eureka
sophia.ac.jp - Researcher number
- 80582890
- ORCID ID
https://orcid.org/0000-0001-5846-8341- J-GLOBAL ID
- 200901008400423457
- researchmap Member ID
- 6000015408
- External link
Yurika Ishii is Professor, Sophia University, Faculty of Law, where she is in charge of public international law courses. Her areas of interest include general public international law, the law of the sea and international/transnational criminal law. She achieved LL.B. from the University of Tokyo, Faculty of Law (Political Science Course), LL.M. from Cornell Law School (with Rotary Ambassador Scholarship), and Ph.D from the University of Tokyo, Graduate Schools for Laws and Politics with a thesis on international regulation of economic crimes, which was published as International Regulation of Transnational Crimes (Yuhikaku, 2017; Japanese; Awarded the 51st Adachi Mineichiro Award). Her latest work includes Japanese Maritime Security and Law of the Sea (Brill, 2022; Awarded the 39th Ohira Masayoshi Memorial Award) and International Law and the Investigation of Transnational Crimes (Oxford University Press, 2025).
She served the National Defense of Academy of Japan from 2010 to 2025 as a lecturer and an associate professor. She stayed at Max Planck Institute for Comparative Public Law and International Law (Heidelberg, Germany, 2008, 2010), Max Planck Institute for Foreign and International Criminal Law (Freiburg, Germany, 2011) and Harvard Law School (Cambridge, the United States, with Fulbright Scholarship, 2014-15) as a guest researcher.
Research Interests
11Research Areas
2Research History
11-
Sep, 2020 - Mar, 2023
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Sep, 2018 - Mar, 2019
Education
3-
Apr, 2003 - Mar, 2009
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Aug, 2003 - May, 2004
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Apr, 1999 - Mar, 2003
Committee Memberships
44-
Dec, 2025 - Present
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Nov, 2024 - Present
Awards
4Papers
56-
Akio Morita, Koji Toraya, Osamu Yoshida, Naoki Iwatsuki, Theory and Realization of International Law: Essays in Honor of Professor Yuji Iwasawa's 70th Birthday, 627-646, Oct 30, 2025 Invited
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Topology of Space Law, 93-112, Feb 28, 2025 Invited
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State, Ocean and International Law: Essays in Honour of Judge Shunji Yanai&s 88th Birthday, Vol. 2, 311-328, Feb 28, 2025 Invited
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Japanese Yearbook of International Law, 67 26-56, Feb 17, 2025 Peer-reviewedInvited
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International Affairs, 722 50-63, Dec 13, 2024 Invited
Misc.
60-
EJIL Talk!, Nov 17, 2025 Peer-reviewed
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Asian Journal of International Law, 1-2, Jul 28, 2025
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Japan Transport and Tourism Research Institute, Study group on legal issues relating to intercontinental transport projects by ballistic flights and others, 23-30, Mar 31, 2025 Invited
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Kazuhiro Nakatani = Takayoshi Sugawara, Air Law (Shinzansha), 44-59, Mar 31, 2025 Invited
Major Books and Other Publications
8-
Oxford University Press, Oct 8, 2025 (ISBN: 9780198957058) Refereed
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Nov 30, 2024 (ISBN: 9784589043733)
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Presentations
130-
Liberal Script(s) - Asian Version and Contestations of Concepts, Feb 23, 2022, The Cluster of Excellence “Contestations of the Liberal Script (SCRIPTS)” Invited
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KAKENHI 19H00570 Workshop, Feb 22, 2022 Invited
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Evolving Maritime Issues in the Indo-Pacific, Feb 4, 2022, Stimson Center Invited
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International Christian University, Public Law, Feb 2, 2022, International Christian University Invited
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Japan Economic Foundation, Jan 28, 2022, Japan Economic Foundation Invited
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Seminars: Cyber Investigation: Cross-border investigation and personal information, Dec 11, 2021, Japan Law Federation Invited
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Keio University, Law School, Project, Freedom and Security of Citizens, Nov 20, 2021 Invited
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Kyushu University, 1st ISGS Global Seminar, Sep 13, 2021, Kyushu University Invited
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Crisis Hours: The Seminar on Counter Terrorism, Aug 14, 2021, Malta Model United Nations Society Invited
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Jun 4, 2021, University of Oslo, Faculty of Law Invited
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The Air Institute of Japan, 67th Annual Meeting, May 21, 2021, The Air Institute of Japan Invited
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International Maritime Law Institute, Course on International Maritime Security Law, May 17, 2021, International Maritime Law Institute Invited
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China’s Coast Guard Law – Implications for the South China Sea and East China Sea, May 12, 2021, Embassy of Canada Invited
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The Biden Administration, Foreign Policy, and International Law in Asia, Apr 29, 2021, American Society of International Law, Asia-Pacific Interest Group Invited
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Pacific Forum, Maritime Discussion Series, Apr 27, 2021, Pacific Forum Invited
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What Can Regional Countries Do To Uphold the Rule of Law in the Maritime Domain?, Mar 29, 2021, ISIS Malaysia Invited
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Indo-Pacific Maritime Security Expert Working Group, Mar 24, 2021, Pacific Forum, the United States Embassy of Japan Invited
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The 12th Space Law Symposium, Current and Future Space Law Policies in the 2020s, Mar 1, 2021, Keio University, Space Law Research Center Invited
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The Security Environment in Western Pacific Waters, Feb 10, 2021, Stimson Center Invited
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International Law Association, 79th Biennial Conference, Dec 9, 2020, International Law Association Invited
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Japan Cybercrime Control Center Workshop, Dec 13, 2020, Japan Cybercrime Control Center Invited
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International Environmental Law, Graduate School of International Christian University, Oct 7, 2020, Graduate School of International Christian University Invited
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Maintaining a Free and Open Indo-Pacific as Tensions Simmer, Jun 17, 2020, Hudson Institute Invited
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Workshop on the Domestication of UNCLOS, May 26, 2020, Ocean Affairs Council & National Taiwan Ocean University Invited
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USALI Maritime Dispute Resolution Project Workshop, Mar 31, 2020, New York University - Naval War College Invited
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EU-Japan Forum (JSPS Core-2-Core Program), Mar 14, 2020, Institut d'Études Européennes de Université Libre de Bruxelles Invited
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International Maritime Law Institute, Maritime Security Law Course, Feb 28, 2020, International Maritime Law Institute Invited
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Toward the further expansion and deepening of space law research, Feb 21, 2020, Keio University Invited
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Seminar of International Human Rights, Feb 17, 2020, Japan Federation of Bar Association Invited
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The 25th Anniversary of UNCLOS, Feb 6, 2020, University of Indonesia Invited
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Informal Lawmaking in the Law of the Sea, Dec 9, 2019, University of New South Wales Invited
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International Human Rights Law Association, The 31st Annual Conference, Nov 16, 2019, International Human Rights Law Association Invited
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The Dilemma of Japanese Ocean Policy revealed by New Technology, Automatic Identification System, Nov 2, 2019, Osaka University Invited
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Core 2 Core Program Workshop: Current Problems of EU-Japan Cooperation in Criminal Matters, Nov 1, 2019, Waseda University Invited
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6th International Symposium on the Law of the Sea, Oct 31, 2019, Ministry of Foreign Affairs of Japan Ocean Policy Research Institute, Sasakawa Peace Foundation Invited
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Workshop on Cross-border Investigation, 2nd Open Workshop, Jul 11, 2019 Invited
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Session concerning the U.S. CLOUD Act, Mar 13, 2019, Nishimura & Asahi Invited
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Workshop on International Law and Japan, Mar 5, 2019, Japan Maritime Self-Defense Force = Naval War College
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The 10th Symposium on Space Law “Toward the further evolvement of our space law research community”, Feb 25, 2019 Invited
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Workshop on International Law and Japan, Feb 5, 2019, Naval War College Invited
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18th Information Network Law Association Japan Conference, Dec 9, 2018, Information Network Law Association Invited
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8th Space Debris Workshop, Dec 3, 2018, Japan Aerospace Exploration Agency Invited
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UNCLOS & Artificial Islands beyond National Jurisdiction, Nov 21, 2018, Universitas Padjadjaran, The Indonesian Center for the Law of the Sea Invited
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The Japan Association of International Economic Law, Nov 10, 2018, The Japan Association of International Economic Law Invited
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European Society of International Law Annual Conference, Sep 13, 2018, European Society of International Law Invited
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International Law Association Japan Branch, Annual Conference, Apr 28, 2018, International Law Association Japan Branch Invited
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Legal Paradigms Governing the Use of Force at Sea, Apr 20, 2018, University of Basel and Law Department of the University of Turin Invited
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Peace and Security at Sea (PaSS) Spring School, Apr 19, 2018, University of Basel and Law Department of the University of Turin Invited
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Peace and Security at Sea (PaSS) Spring School, Apr 18, 2018, University of Basel and Law Department of the University of Turin Invited
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Protection and Utilisation of Personal Data: An Interdisciplinary Research, 14th Meeting, Mar 18, 2018, Working Group on Protection and Utilisation of Personal Data: An Interdisciplinary Research Invited
Teaching Experience
8-
Apr, 2025 - PresentInternational Law (Sophia University)
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Sep, 2025 - Mar, 2026Law of International Dispute Settlement (Sophia University)
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Sep, 2012 - Mar, 2025Public International Law (National Defense Academy of Japan)
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Apr, 2010 - Mar, 2025International Relations (National Defense Academy of Japan)
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Apr, 2010 - Mar, 2024Law of the Sea (National Defense Academy of Japan)
Professional Memberships
11-
May, 2019 - Present
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Nov, 2018 - Present
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Jan, 2017 - Present
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Nov, 2016 - Present
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May, 2016 - Present
Research Projects
29-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2024 - Mar, 2028
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2025 - Mar, 2028
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2023 - Mar, 2028
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Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Pioneering), Japan Society for the Promotion of Science, Jun, 2022 - Mar, 2027
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Jun, 2020 - Mar, 2025
Academic Activities
7-
Planning/Implementing academic research, Peer reviewUnited Nations Office on Drugs and Crime (Tokyo), Apr 5, 2024 - Apr 7, 2024
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Planning/Implementing academic research, Peer reviewUnited Nations Office on Drugs and Crime, Global Maritime Crime Programme, Jan 12, 2023 - Jan 14, 2023
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Peer review, OthersInternational Institute of Humanitarian Law (Online), Dec 16, 2020 - Dec 18, 2020
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Peer review, OthersUnited Nations Office on Drugs and Crime, Global Maritime Crime Programme (Mauritius), Oct 16, 2019 - Oct 18, 2019
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International Institute of Humanitarian Law (Copenhagen, Denmark), Sep 30, 2019 - Oct 4, 2019
Social Activities
37Other
2-
Jun, 2021 - Jun, 2021Participated in Summer Academy for Global Privacy Law 2021 - International data flows: Moving challenges, new solutions? (https://www.vub.be/en/events/2021/summer-academy-for-global-privacy-law-2021-international-data-flows-moving-challenges).
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Jun, 2017 - Jun, 2017Participated in Maritime Boundaries Workshop held by the Centre for International Law (CIL), National University of Singapore and the Australian National Centre for Ocean Resources and Security (ANCORS), University of Wollongong in Singapore from 6-8 June 2017 (https://cil.nus.edu.sg/programmes-and-activities/upcoming-events/cil-ancors-maritime-boundary-workshop/).