Intellectual Property: Domestic
Asia-Pacific Guide 2025 : Japan
Band 2
Contact number
+81 3 5220 1800Chambers Review
Mori Hamada & Matsumoto offers a comprehensive service andis distinguished for its abilities incontentious matters centring on copyright, patent andtrade mark disputes. The firm routinely acts on infringement and invalidation claims and has a strong following of technology, media and pharmaceutical clients, among others. The team also advises on IP prosecution, anti-counterfeiting and licensing agreements. It is a popular choice for domestic and international clients seeking representation in the Japan Patent Office and IP High Court.
Work Highlights
- An MHM team represented Hitachi Metals in a litigation before the Chinese Supreme Court in the field of sintered neodymium-iron-boron magnets.
Strengths
Provided by Chambers
"Its lawyers provided professional and practical advice based on their practical experience."
"The cooperation between lawyers and patent attorneys is smooth and very helpful."
"The partners share associates in the practice group and their associates have many opportunities to work on different types of matters. The culture helps them to create their strength."
"Its lawyers provided professional and practical advice based on their practical experience."
"The cooperation between lawyers and patent attorneys is smooth and very helpful."
"The partners share associates in the practice group and their associates have many opportunities to work on different types of matters. The culture helps them to create their strength."
Notable Practitioners
Yutaka Miyoshi co-heads Mori Hamada & Matsumoto's intellectual property team. He has notable expertise in patent infringement disputes and patent assessments, as well as domain name matters.
Atsushi Okada co-heads MHM's IP practice and offers strength in the areas of IP prosecution, enforcement and licensing work for clients from a range of sectors.
"He led the formulation of Japan's AI Business Guidelines as a leading expert on AI governance in Japan."
"We are very satisfied with his responsiveness and good value for money."
Ranked Lawyers at
Mori Hamada & Matsumoto
Japan