Nagashima Ohno & Tsunematsu

Nagashima Ohno & Tsunematsu is widely recognised for representing major domestic and international corporations in high-stakes, complex disputes. The firm’s litigation and arbitration practice spans proceedings before Japanese courts, as well as international arbitration and mediation forums. The team brings deep expertise across a broad range of specialised areas, including commercial transactions, intellectual property, taxation, product liability, securities, and consumer protection. At the helm, Koki Yanagisawa leads the practice with a strong focus on disputes involving commercial, antitrust, and employment law. He has acted for a diverse portfolio of Japanese and global clients across multiple sectors in litigation, arbitration, and mediation. Yoshimi Ohara is a prominent figure in international arbitration, regularly acting under institutional rules such as ICSID, SIAC, ICC, AAA/ICDR, and JCAA. Her cross-border experience makes her a key adviser in globally sensitive matters. Yoshihiro Takatori brings further depth to the team with his focus on international litigation and alternative dispute resolution, reinforcing the firm’s ability to manage disputes that require multi-jurisdictional strategy and coordination.