Department profile
Aoyama & Partners

Intellectual Property: Domestic

Global Guide 2026 : Japan


Aoyama & Partners

Rankings

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Ranked Individual

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Chambers Review

Provided by Chambers

Intellectual Property: Domestic - Japan

Band 4

Band 4


What the Team is Known For

Aoyama & Partners is a boutique patent prosecution firm with a robust practice. The firm is also engaged in IP infringement cases, including for patents, trade marks and designs, as well as licensing agreements. Its expertise includes chemistry, life sciences, engineering and technology.

Strengths

Aoyama & Partners is highly experienced in complex, international cases that require a strategic and aligned approach, with big teams available whenever you need them.

They are able to communicate in a transparent and straightforward style, adapting to US and European communication styles and making the discussion and collaboration easier and more efficient.

Work Highlights

Aoyama & Partners represented Qipack in a lawsuit brought by PACRAFT seeking a declaratory judgement confirming non-infringement, successfully settling the matter.

Notable practitioners
Hiroshi Tamura

Hiroshi Tamura handles patent prosecution and litigation for clients in the electronics, medical device and pharmaceutical industries.

Hiroshi Tamura is very experienced and thorough, offering attention to details as well as a general overview. He is always perfectly prepared, reliable and very pleasant to work with.

He is an extremely strategic, experienced litigator and has a good understanding of the technology. He is also very open to other legal cultures in other countries and extremely pleasant to work with.

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Ranked Individuals at Aoyama & Partners (1)

Japan

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