Department profile
Yuasa & Hara

Intellectual Property: Domestic

Asia-Pacific Guide 2026 : Japan


Yuasa & Hara

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Chambers Review

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Intellectual Property: Domestic - Japan

Band 3

Band 3


What the Team is Known For
Yuasa & Hara maintains a strong reputation for its work on patents, trade marks and designs. The firm is highly regarded for representing domestic and international companies active in the spheres of technology and life sciences.
Strengths

Yuasa & Hara has abundant experience and the ability to quickly present easy-to-understand solutions.

Even in cases with no precedent, they are able to respond. Even if you contact them in the middle of the night or on holidays, you will receive a reply immediately.

Work Highlights

Yuasa & Hara defended AstraZeneca’s formulation patent of Faslodex against Sandoz’s challenge before the IP High Court.

Notable practitioners
Toshiaki Iimura

Toshiaki Iimura is a former chief judge of the IP High Court who heads Yuasa & Hara's law division and often handles patent infringement litigation.


Tsuyoshi Sueyoshi
Tsuyoshi Sueyoshi is an experienced IP attorney who is notably strong in patent disputes relating to the life sciences industry.

Tsuyoshi Sueyoshi possesses a very strong ability to propose creative solutions and has great business skills, with a strong commitment to resolving the issues at hand.

He has a very high level of knowledge and is able to handle complex cases.

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Ranked Individuals at Yuasa & Hara (2)

Japan

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