Ranking tables
Life Sciences | Asia-Pacific
Japan
Rankings overview for Departments
Band 1
Band 3
Band 4
- Atsumi & Sakai 1 Years Ranked
- Squire Gaikokuho Kyodo Jigyo Horitsu Jimusho
Band 1
Band 2
- Satoru Nagasaka TMI Associates4 Years Ranked
- Yasufumi Shiroyama Anderson Mori & Tomotsune17 Years Ranked
- Yo Uraoka Mori Hamada & Matsumoto4 Years Ranked
- Mami HinoAbe, Ikubo & Katayama
- Tsuyoshi SueyoshiYuasa & Hara
Band 3
Band 4
- Harukuni Ito Atsumi & Sakai1 Years Ranked
- Ryosuke Tateishi Baker McKenzie (Gaikokuho Joint Enterprise)1 Years Ranked
- Yukihiro Terazawa Morrison Foerster1 Years Ranked
- Stephen ChelbergSquire Gaikokuho Kyodo Jigyo Horitsu Jimusho
Up and Coming
All Departments profiles
Band 1
1 Anderson Mori & TomotsuneLife Sciences2025 | Band 1 | 8 Years RankedAnderson Mori & Tomotsune has a pre-eminent practice highly proficient in advising Japanese and international pharmaceutical companies on M&A and joint ventures. The firm is equally skilled in working on contentious patent infringement and invalidation claims, and has a proven track record in providing assistance with licensing and distribution agreements, alongside regulatory matters in the medical device and pharmaceutical spaces. The team also provides advisory services to life sciences clients on competition and consumer law matters, such as advice on the Act against Unjustifiable Premiums and Misleading Representations.1 Hogan Lovells International LLPLife Sciences2025 | Band 1 | 8 Years RankedHogan Lovells is highly sought after to act on patent infringement, invalidation and licensing matters. The firm is also adept in assisting clients with cross-border regulatory issues and patent term extensions, regularly assisting both domestic and international pharmaceutical clients. It draws on the expertise of its lawyers in medical and molecular sciences, as well as in biochemistry, to advise companies on both inbound and outbound life sciences matters. The team also offers expertise in commercial matters and handles licensing, supply and commercialisation agreements, and leverages its global network to provide international coverage.1 Nagashima Ohno & TsunematsuLife Sciences2025 | Band 1 | 8 Years RankedNagashima Ohno & Tsunematsu excels in advising key domestic and international pharmaceutical, healthcare and medical device companies on corporate transactions, including acquisitions and business integrations, alongside merger controls. The firm is skilled in advising on areas such as regulatory regimes and patent protection, together with licensing and distribution agreements. Its clients additionally benefit from the firm's practice in related areas such as corporate, finance and IP, and the team is well placed to provide advice to major life sciences corporations in relation to crisis management.
Band 2
2 Mori Hamada & MatsumotoLife Sciences2025 | Band 2 | 6 Years RankedMori Hamada & Matsumoto combines a strong corporate offering with notable expertise in healthcare law. The firm assists clients with pharmaceutical product and medical device licensing and development, as well as related patent protection, enforcement and litigation mandates. The team is regularly enlisted by leading Japanese and international clients on pharmaceutical and healthcare-related M&A transactions.2 Morrison FoersterLife Sciences2025 | Band 2 | 8 Years RankedMorrison Foerster has a substantial team that attracts mandates from major pharmaceutical companies and other corporations engaged in the sector, and especially those relating to cross-border M&A transactions, joint ventures and venture capital. The firm offers advice on IP commercialisation as well as areas such as R&D and patent protection. The team's scope of expertise also includes assisting clients with disputes, with a focus on product liability claims and drug distribution litigation.
Band 3
3 Abe, Ikubo & KatayamaLife Sciences2025 | Band 3 | 8 Years RankedAbe, Ikubo & Katayama is renowned for its strengths in handling high-stakes domestic patent disputes, and counts a number of major international pharmaceutical companies among its clients. The team is particularly skilled in assisting with High Court appeals and maintains a portfolio of work that also includes patent term extensions and negotiations involving generic companies. It offers additional support in patent prosecution and protection strategy, as well as invalidation actions.3 Baker McKenzie (Gaikokuho Joint Enterprise)Life Sciences2025 | Band 3 | 8 Years RankedBaker McKenzie advises on a comprehensive range of issues that affect companies operating in the life sciences arena. The team's expertise ranges from transactional, financing and disputes to IP, regulatory and competition matters. It draws upon its global network to assist with multi-jurisdictional licensing transactions and market entry mandates. The team also demonstrates expertise in relation to data privacy, anti-corruption and regulatory licences within the life sciences space.3 Jones DayLife Sciences2025 | Band 3 | 8 Years RankedJones Day houses a talented group distinguished for the scope of its expertise. The team is proficient in liaising with other offices in dealing with the protection and enforcement of IP assets, especially patents. The firm is also well placed to assist life sciences clients in relation to corporate transactions, and can leverage its global network to assist clients with international matters.3 Nishimura & AsahiLife Sciences2025 | Band 3 | 7 Years RankedNishimura & Asahi has a well-established practice assisting an international roster of pharmaceutical and medical device companies, as well as academic institutions and major distributors. The firm is especially known for covering cross-border M&A, joint ventures and restructuring matters, alongside advice on regulatory matters and clinical trials. It ably handles IP rights, licensing and compliance issues in the life sciences space and represents clients in contentious matters such as patent infringement disputes.3 Oh-Ebashi LPC & PartnersLife Sciences2025 | Band 3 | 7 Years RankedOh-Ebashi LPC & Partners is an established law firm with a strong presence in Osaka, as well as Tokyo, Nagoya and Shanghai. The firm is noted for its life sciences practice and sought after by both domestic and multinational clients in the pharmaceutical and medical device sector. The team is particularly noted for its experience acting in patent litigation in this sector, including disputes in US courts.3 TMI AssociatesLife Sciences2025 | Band 3 | 8 Years RankedTMI Associates is noted for offering expertise in the pharmaceutical, medical device and technology sectors, with a diverse clientele that also includes biotech and healthcare companies. The team is frequently instructed on M&A transactions, and patent infringement and product liability matters. The firm is also well versed in regulatory matters, including licensing and distribution agreements, as well as clinical trials.
Band 4
4 Atsumi & SakaiLife Sciences2025 | Band 4 | 1 Years RankedAtsumi & Sakai is sought after for its expertise in the pharmaceutical, medical devices, biotechnology and health technology industries. The firm provides Japanese and international businesses with a range of advisory capabilities on agreements, intellectual property and associated disputes.