News & Analysis as of

Intellectual Property Litigation Japan

Jones Day

Japanese Supreme Court: Building a System That Includes a Server Located Outside Japan Constitutes Patent Infringement

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On March 3, 2025, the Japanese Supreme Court held that building a network-based system comprised of a server located in the United States, connected via a network to user terminals in Japan, constitutes "producing a product"...more

Hogan Lovells

Japan: Supreme Court Decision — Closing a loophole for patent infringements in cross-border network systems

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On March 3, 2025, the Supreme Court of Japan upheld the original judgment that found patent infringement in respect of the acts performed on a server located outside Japan, virtually affirming the extraterritorial application...more

McDermott Will & Emery

[Webinar] IP Focus | US Patent Law Under the New Trump Administration - February 5th, 10:00 am JST

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McDermott is committed to providing insightful commentary on intellectual property (IP) developments from around the world to our Japanese clients. During these sessions, a variety of speakers from McDermott’s offices in the...more

Hogan Lovells

COVID-19 IP update: impact on litigation (UPDATED)

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Japan - On 7 April 2020, the Japanese government declared a state of emergency in seven prefectures, due to the on-going COVID-19 pandemic. Subsequently, on 16 April 2020, the Japanese government declared a state of...more

Hogan Lovells

Covid-19 IP Update: Impact on litigation (UPDATED)

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Court of Justice of the European Union (CJEU) - The CJEU has announced? temporary changes to its working arrangements. Judicial activity will continue, but priority will be given to those cases that are particularly...more

Skadden, Arps, Slate, Meagher & Flom LLP

Skadden's 2020 Insights

Despite political and economic uncertainties, markets and deal activity were resilient in 2019, and strong fundamentals remain in place heading into 2020. Companies continue to face a challenging litigation and enforcement...more

Hogan Lovells

Brand Benchmarking 2018: Trademark challenges and opportunities in China

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In the first of a series of articles looking in more depth at the findings of the Brand Benchmarking 2018 report, we examine trends in China and East Asia....more

Hogan Lovells

Japan: Defendant shelved – IP High Court judgement finds for unfair competition

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The Intellectual Property High Court (IPHC) rendered a judgement on 29 March 2018, granting a permanent injunction on the sale of shelving units marketed by the defendant....more

Morrison & Foerster LLP

Litigation and enforcement in Japan: overview

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MAIN DISPUTE RESOLUTION METHODS - 1. What are the main dispute resolution methods used in your jurisdiction to resolve large commercial disputes? Litigation Litigation is the most frequently used dispute...more

Mintz - Intellectual Property Viewpoints

Prepare for the Japanese Patent Opposition System Coming Soon

The Japanese Patent Act was revised on May 14, 2014 to provide for post-grant oppositions within one year of the rule change, i.e., by May 14, 2015 (the exact effective date has not yet been set). Under the new opposition...more

Morrison & Foerster LLP

Litigation and enforcement in Japan: overview

What are the main dispute resolution methods used in your jurisdiction to settle large commercial disputes? Litigation - Litigation is the most frequently used dispute resolution method to settle large...more

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