Awards
Ms. Ohara is a Partner at Nagashima Ohno & Tsunematsu. Her practice focuses on international arbitration, international complex litigation and mediation. She represents both domestic and foreign clients in international arbitration in various venues under the rules of the ICC, AAA/ICDR, SIAC and JCAA. With a strong corporate and IP background, she has extensive experience in dealing with disputes covering a wide range of subjects, including joint ventures, M&A, energy, construction, technology transfer, intellectual property, shipping, sales and distribution. Ms. Ohara also serves as an arbitrator in international arbitration. She has contributed to shaping soft law in international arbitration through IBA activities.
Practice Areas
Education/Professional Experience
- 1990
- The University of Tokyo (LL.B.)
- 1992 -
- Nagashima & Ohno (currently Nagashima Ohno & Tsunematsu)
- 1996
- Harvard Law School (LL.M.)
- 1996
- Covington & Burling LLP, Washington, D.C.
- 1999 - 2000
- Intellectual property department of a leading electronics manufacturer in Japan
- 2003 - 2004
- Foley & Lardner LLP, Washington, D.C.
- 2008 - present
- Partner, Nagashima Ohno & Tsunematsu
- 2010 - 2015
- member, LCIA Court
- 2011
- Member, IBA Task Force on Professional Conduct of Counsel in International Arbitration
- 2013 -
May 2015 - Vice President, LCIA Court
- 2013
- Member, IBA Conflicts of Interest Subcommittee
- 2013
- Working Group Member, IBA Asia Pacific Arbitration Group
- 2014 - present
- Adjunct Lecturer, Keio University Law School
- 2015 - 2016
- Co - chair, IBA Asia Pacific Arbitration Group
- Jul 2015 -
Jun 2021 - Vice President, ICC International Court of Arbitration
- Jun 2016 -
May 2019 - President, LCIA Asia Pacific Users' Council
- 2017 - present
- Board member, Swiss Arbitration Association (ASA)
- Apr 2018 -
present - Governing Board member, International Council for Commercial Arbitration (ICCA)
- 2018
- Member, IBA International Commercial Arbitration Case Law Subcommittee
- Aug 2021 -
Aug 2024 - Council member, Mumbai Centre For International Arbitration (MCIA)
- 2021 - present
- Member, the ICSID Panel of Arbitrators designated by Japan
- Jun 2023 -
- Council member, Hong Kong International Arbitration Centre (HKIAC)
- 2025 - present
- Vice President, Japan Association of Arbitrators
Awards
Seminars
-
July 9, 2026 (Thu) 14:30 - 17:00Contract Provisions in response to Unforeseeable Global Extreme Changes – Necessity of New Contract Provisions beyond Traditional Contract Framework
- Yoshimi Ohara
- Claire Chong
- Annia Hsu
Nagashima Ohno & Tsunematsu Tokyo Office
- Dispute Resolution
- International Arbitration
-
April 17, 2026 (Fri) 14:30 - 17:00Strategic and Practical Considerations and Measures to Safeguard Interests and Manage Risks for International Dispute Resolution and Arbitration Proceedings
- Yoshimi Ohara
- Justin Ee
- Annia Hsu
- Kaori Sugimoto
JP TOWER Hall & Conference
- Dispute Resolution
- International Arbitration
-
March 13, 2025 (Thu) 14:30 - 17:00Key features of new SIAC Rules 2025 and practical tips ~Insights from Global Arbitration Practitioners on different arbitration practices and laws in Singapore, Hong Kong, London, Germany, Japan.
- Yoshihiro Takatori
- Yoshimi Ohara
- Justin Ee
Nagashima Ohno & Tsunematsu Tokyo Office
- Dispute Resolution
- International Arbitration
-
November 21, 2024 (Thu) 16:30 - 17:30GC and Management Insights: Best Practices on Crisis and Dispute Management
- Yoshimi Ohara (Panelist)
Tsunamachi Mitsui Club / Online
- Dispute Resolution
- International Arbitration
Publications
-
Articles
Global Arbitration Review – The Asia-Pacific Arbitration Review 2026 Japan
(May 2025)
Yoshimi Ohara, Shota Toda, Annia Hsu (Co-author)
- Dispute Resolution
- International Arbitration
-
Articles
National Implementation of International Economic Law: Japan
(July 2024)
Yoshimi Ohara, Yoshitaka Kato (Co-author)
- International Trade and Commerce, and Economic Sanctions
-
Articles
Global Arbitration Review – The Asia-Pacific Arbitration Review 2025 Japan
(May 2024)
Yoshimi Ohara, Shota Toda (Co-author)
- Dispute Resolution
- International Arbitration
-
Articles
Arbitration Ambitions
(December 2023)
Yoshimi Ohara, Kara Quek (Comment)
- Dispute Resolution
- International Arbitration
