The team at Nagashima Ohno & Tsunematsu represents both domestic and cross-border businesses in litigation before Japanese courts, as well as in arbitration and mediation proceedings. Led by Koki Yanagisawa, the team has extensive experience in commercial transactions, intellectual property, antitrust, labour and employment, and tax-related dispute matters. Yanagisawa focuses on resolving disputes concerning commercial, antitrust, and employment matters. Norimitsu Arai brings extensive experience in corporate, securities, and employment-related matters, while Yoshimi Ohara represents clients in international arbitration matters regarding various global organisations and commissions. Kaori Sugimoto was promoted to the partnership in January 2024.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
'The firm has a lot of experience in both commercial and investment arbitrations. The team always considers the best possible way to resolve disputes, showcasing their excellent negotiation skills. Including international arbitration star Yoshimi Ohara, the team has very strong and well-versed international arbitration lawyers.'
‘Yoshimi Ohara is one of the top international arbitration lawyers. She is brilliant and a very sharp and analytical thinker. She always navigates the most stressful situations with calm and determination.
'The firm is highly capable of reaching a reasonable settlement with the other party before entering costly legal proceedings. They collaborate with other international firms and have extensive knowledge in international arbitration.'
‘Nagashima Ohno is unique in its longstanding presence in the US market. Its partners are experienced, well-connected, and extremely knowledgeable about the US system. They are able to provide their clients in Japan with unparalleled insight into the US litigation system and provide them with top-tier advice in a way that their competitors with less of a US focus might not. ’
'Yoshimi Ohara has great experience and knowledge in international arbitration practice. Her expertise is very unique in Japan.'
Key clients
- Central Japan Railway Company
- Tokyo Electric Power Company
- Kajima Corporation
- Nissan Motor Co., Ltd.
- SECOM Co., Ltd.
Work highlights
- Advised Tokyo Electric Power Company (TEPCO) in its shareholders' derivative litigation.
- Advised Central Japan Railway Company (JR Central) in Linear Chuo Shinkansen litigation.
Lawyers
Leading partners: Bengoshi
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
The lawyer(s) leading their teams.
Koki Yanagisawa