Hiroyuki Tezuka

International Arbitration

International Litigation

Alternative Dispute Resolution

Corporate Disputes

Securities Litigation/Disputes Related to Financial Products

IP Litigation

PL Litigation

Insurance Related Disputes

Investor-State Dispute Settlement

Partner, Nishimura & Asahi (Gaikokuho Kyodo Jigyo)

Admitted: Japan, 1986; New York, 1993.

･"Rise of Hybrid Arbitration/Mediation in the Era of the Singapore Mediation Convention," International Arbitration: When East Meets West - Liber Amicorum Michael Moser, Kluwer Law International, 2020

･"Exploring the future of commercial dispute resolution in Asia: Accelerating efficiency and effectiveness in ADR," Asian Journal of Law and Society, Cambridge University Press, 2022

･"Japan" (chapter), Post-award Interest in the Asia-Pacific, Kluwer Law International, 2023

･"Arbitrability of International IP Disputes," The Guide to IP Arbitration – Third Edition, Global Arbitration Review, Law Business Research, 2024

Hiroyuki heads the international dispute resolution practice of Nishimura & Asahi. He specializes in international commercial litigation, arbitration, and mediation, and has represented many international clients, including multinational manufacturers, banking and securities firms, insurance companies, and information media companies, in disputes involving M&A, antitrust laws, corporate governance, insurance laws, intellectual property, defamation, joint ventures, licensing, construction, and other commercial matters, as well as international bankruptcy proceedings. He has been involved in a number of international arbitrations as counsel, sole arbitrator, and co-arbitrator (including chair) before the ICC, JCAA, AAA-ICDR, VIAC, KCAB, and SIAC.

Hiroyuki serves as Vice President of the Japan Association of Arbitrators and as Chief Director of the Japan International Mediation Center in Kyoto; formerly, he served as the Vice Chair of the Arbitration Committee of the IBA Legal Practice Division, and as Co-Chair of the Dispute Resolution and Arbitration Committee at the IPBA (2016 - 2020). From 2013 to 2016, he taught international arbitration and international dispute resolution at the University of Tokyo, School of Law as a visiting professor. He also served as a member of the International Court of Arbitration of the ICC (second term, through June 2024), a Council Member of the ICC Institute of World Business Law (ongoing, since 2018), and a member of the Court of Arbitration of the SIAC (2013 - 2024).

2023- Chief Director, Japan International Mediation Center in Kyoto (JIMC-Kyoto)

2021-2022 Deputy Chief Director, JIMC-Kyoto

2021- Vice President, Japan Association of Arbitrators (JAA)

2020- Member, Task Force on “ADR and Arbitration” of the ICC Commission on Arbitration and ADR, International Chamber of Commerce (ICC)

2018-2024 Member, International Court of Arbitration of the ICC

2018- Council Member, ICC Institute of World Business Law

2016- Fellow, Chartered Institute of Arbitrators (FCIArb)

2013- 2024 Member, SIAC Court of Arbitration, Singapore International Arbitration Centre (SIAC)

2013-2016 Visiting Professor (International Commercial Arbitration), University of Tokyo, School of Law

Harvard Law School

LL.M.

1992

The University of Tokyo

LL.B.

1984

Japan’s Top 100 Lawyers 2024

Asia Business Law Journal - The A-List

2024

Litigation Star

Benchmark Litigation Asia-Pacific 2024

2024

Dispute Resolution - Leading Individual

Chambers Global 2024

2024

Global Guide 2024 - Arbitration and Commercial Litigation

Lexology Index (formerly Who's Who Legal)

2024

Dispute Resolution - Leading Individual

Chambers Asia-Pacific 2025

2025

Dispute Resolution - Hall of Fame

Legal 500 Asia Pacific 2025

2025