Department profile
Mori Hamada

Intellectual Property: Domestic

Asia-Pacific Guide 2026 : Japan

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Mori Hamada

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About

Provided by Mori Hamada

We offer comprehensive legal services in the area of intellectual property (IP), including patents, trademarks, copyrights and trade secrets. Our services encompass representing clients in infringement litigation, arbitration and other dispute resolution processes, as well as advising on invalidation trials, appraisals and the strategic use of IP. We have managed numerous large-scale and complex infringement litigation and arbitration cases both in Japan and overseas. Additionally, we have significant experience and a strong track record in complex transactional matters related to IP, such as licensing, collaborative R&D, and technology transfer. Our team is also experienced in a plethora of cutting-edge topics, such as the utilization of AI and the protection of content in the metaverse.

Chambers Review

Provided by Chambers

Intellectual Property: Domestic - Japan

Band 2

What the Team is Known For

Mori Hamada offers a comprehensive service and is distinguished for its abilities in contentious matters centring on copyright, patent and trade 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.

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Work Highlights

Provided by Chambers

  • Mori Hamada advised the Japanese government on development of national strategy on AI.

Strengths

Provided by Chambers

  • They provide realistic advice and proposals based on judicial precedents, practices and analyses of the intentions of the other party.

    Intellectual Property: Domestic respondentAsia-Pacific

  • Mori Hamada is a law firm with talents covering a wide range of legal fields. I am satisfied with the depth of their expertise.

    Intellectual Property: Domestic respondentAsia-Pacific

Notable Practitioners

Provided by Chambers

  • Atsushi Okada
    Atsushi Okada

    Atsushi Okada

    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 is a very good lawyer who understands our situation and always responds flexibly and quickly.

      Intellectual Property: Domestic respondentAsia-Pacific

    • Atsushi Okada can respond carefully to a wide variety of matters and provide accurate advice.

      Intellectual Property: Domestic respondentAsia-Pacific
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  • Yutaka Miyoshi
    Yutaka Miyoshi

    Yutaka Miyoshi

    Yutaka Miyoshi co-heads Mori Hamada's intellectual property team. He has notable expertise in patent infringement disputes and patent assessments, as well as domain name matters.

    • I received accurate advice from a broad perspective. He keeps the team together.

      Intellectual Property: Domestic respondentAsia-Pacific

    • He has a good track record in the field of copyright law, litigation cases and other areas, and is one of the most reliable lawyers.

      Intellectual Property: Domestic respondentAsia-Pacific
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Ranked Individuals at Mori Hamada (2)

Japan

Members

Provided by Mori Hamada

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