
Tokyo International Law Office regularly represents high-profile clients in complex cross-border disputes, covering areas such as securities fraud, product liability, trademark enforcement, and real estate contract litigation. The firm is known for its sophisticated handling of international matters across a wide range of industries. At the helm of the team is Koki Yamada, a respected authority in cross-border litigation and mergers and acquisitions, particularly trusted by major institutional clients. Mikiharu Mori is a standout figure in the practice, advising both Japanese and multinational companies on outbound and inbound M&A transactions, infrastructure development, global compliance, and regulatory investigations. Also notable is Earl Rivera-Dolera, who represents clients in international arbitration under the rules of leading arbitral bodies, including the VIAC and JCAA.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘They think out-of-the box, not the traditional Japanese law firm.
- 'Always my first call when I have to deal with a Japanese litigation-related matter.'
- 'Super nimble and pleasant to deal with.'
- 'They cover more than Japan, and have very good contacts in South East Asia, which is very useful.'
‘Koki Yamada: he is simply unique. Very international, smart, strategic thinker, hardworking. I highly recommend him and his team.'
‘Tokyo International Law Office has consistently provided us with highly professional and dedicated legal support. Each member of their team brings unique expertise and experience.'
Key clients
- 82 Institutional Investors vs Kansai Electric
- Amazon Japan
- Grace Technology
- LegalOn Technologies
- Well Shin Technology
Work highlights
Advising 82 International Institutional Investors (Pension Funds) in a security fraud action against a major Japanese regional utility company.
Advised Grace Technology, a leading instruction manual manufacturer, in six securities fraud litigations brought by its shareholders.
Advised LegalOn Technologies Inc. and its Japanese parent company, LegalOn Technologies KK, in concurrent trademark infringement litigation in the United States and Japan.
Lawyers
Leading partners: Bengoshi
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Koki Yamada
Other key lawyers
Mikiharu Mori; Earl Rivera-Dolera; Yuta Yamasaki; Masayuki Otake
