Anderson Mori & Tomotsune

IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Silver - Firms: litigation

Bronze - Firms: prosecution

Recommended - Firms: transactions

Full-service law firm Anderson Mōri & Tomotsune is one of the biggest in Japan, with an equally comprehensive IP practice that counts prosecution, dispute resolution and transactions among its full suite of services. IP practice leader Yasufumi Shiroyama is “the firm’s leading IP lawyer”. While Miki Goto is trained in physics and engineering, his colleagues Yoshikazu Iwase and Masayuki Yamanouchi focus on the fields of life sciences and chemistry respectively. PhD holder in biochemistry Makoto Ono is someone to have on speed dial when it comes to prosecuting agro-chemistry and pharmaceutical patents.

Firm Profile

Anderson Mori & Tomotsune (AMT) is a full-service law firm formed by the winning combination of three leading law firms in Japan: Anderson Mori, one of the largest international firms in Japan, which was best known for serving overseas companies doing business in Japan since the early 1950s; Tomotsune & Kimura, particularly well-known for its expertise in international finance transactions; and Bingham Sakai Mimura Aizawa, a premier international insolvency/restructuring and crisis-management firm.

Our combined firm provides an extraordinarily powerful value proposition. Housing all of these synergistic practices under one roof, and further increasing our resource scale, we have the capability to serve a multinational client base on in-bound, out-bound and domestic projects, by providing expert, timely and cost-efficient advice across a full range of legal issues and in the largest, most complex, cross-sector transactions.

We are proud of our long tradition of serving the international business and legal communities, and of our reputation as one of the largest full-service law firms in Japan. Our combined expertise enables us to deliver comprehensive advice on virtually all legal issues that may arise from a corporate transaction, including those related to M&A, finance, capital markets and restructuring/insolvency, and litigation/arbitration. The majority of our lawyers are bilingual and experienced in communicating, drafting and negotiating across borders and around the globe. We welcome the opportunity to work closely with clients and channel our resources towards our goal of achieving more together.

Our lawyers take great professional pride in their work. As a fundamental principle, we continuously strive to deliver premier quality legal services on each and every client assignment. To achieve this, AMT professionals are dedicated to four maxims: the pursuit of excellence, steadfast effort, maintaining quality and constant improvement.

AMT’s devotion to providing premier quality legal services has repeatedly been acknowledged. We are deeply honoured and privileged to consistently receive top professional recognition for our work on international and domestic corporate law matters. We sincerely value and appreciate the trust that our clients have placed in us, and will continue to deliver high-quality, comprehensive legal services to meet their needs.

We are headquartered in Tokyo with branch offices in Osaka and Nagoya. Outside Japan, we have offices in Beijing, Shanghai, Singapore, Ho Chi Minh City and Bangkok. We also have a Japan desk in Jakarta and an associated firm in Hong Kong.

IP practice group

The firm’s IP practice group comprises attorneys at law (bengoshi) and patent attorneys (benrishi).

Our IP attorneys (bengoshi) are veterans in patent litigation and have extensive experience in IP licensing and transactions. They possess deep technical knowledge in the areas of electronics, telecommunications, computers, machinery, chemicals, biotechnology and pharmaceuticals. Our lawyers have extensive experience in the handling of know-how, trademark, copyright and entertainment disputes, as well as IP licensing and transactions. They work closely with the firm’s specialists in other practice areas such as competition law, labour law, corporate law, cross-border transactions, bankruptcy and pharmaceutical regulations, as required by the nature of the cases they handle.

Our patent attorneys (benrishi) specialise in the filing of patents, utility models, designs and trademarks. These professionals are qualified to appear before the Japan Patent Office for patent prosecution proceedings and provide our clients with advice and consultations on the various aspects of Japanese IP law. The members of our patent prosecution team hail from a variety of professional, technical and academic backgrounds and are at the cutting edge of both technology and IP regulations.

AMT’s experts work hand-in-hand to ensure that our IP practice group is, and continues to be, one of the top legal professional IP practices in Japan.

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