Toko Sekiguchi's profile photo

Toko Sekiguchi

Tokyo

Senior Correspondent at MLex Market Insight

Tokyo-based journalist, now covering antitrust and regulatory issues.

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Articles

  • Japan IP court rejects Patent Cooperation Treaty claims in inventorship dispute

    1 week ago | mlex.com | Toko Sekiguchi

    By Toko Sekiguchi ( May 9, 2025, 10:30 GMT | Insight) -- In a decision that effectively dismissed all contested claims, Japan’s Intellectual Property High Court held that merely filing a Patent Cooperation Treaty application does not confer enforceable patent rights without corresponding national phase entries — and that because key technical contributions to the blood vessel plug invention came from an external professor rather than from an internal employee, the disputed invention could not...

  • Alibaba appeals patent invalidation loss against BWB's customs-clearance system

    2 weeks ago | mlex.com | Toko Sekiguchi

    By Toko Sekiguchi ( April 30, 2025, 09:24 GMT | Insight) -- Alibaba is appealing its loss in an invalidation petition against Japanese patent manager BWB's e-commerce customs-clearance system patent, a development that could significantly impact the Chinese tech giant's strategic efforts in the global e-commerce arena.

  • Japan IP court dismisses reexamination claim, upholds JPO's 2007 patent rejection

    2 weeks ago | mlex.com | Toko Sekiguchi

    By Toko Sekiguchi ( April 28, 2025, 09:15 GMT | Insight) -- In a decision that clarifies certain aspects of Japan’s patent examination process, the Intellectual Property High Court upheld a 2007 rejection of a patent application for a device designed to help individuals with limited mobility.

  • Japan court backs international patent rejection over late translation

    3 weeks ago | mlex.com | Toko Sekiguchi

    By Toko Sekiguchi ( April 25, 2025, 08:10 GMT | Insight) -- The Tokyo District Court has affirmed the Japan Patent Office’s decision to reject an international patent examination request due to a delay in submitting the required Japanese translation.

  • Japanese court strips film producer Toho of copyright over unapproved anime adaptations ​ | MLex | Specialist news and analysis on legal risk and regulation

    3 weeks ago | mlex.com | Toko Sekiguchi

    By Toko Sekiguchi ( April 22, 2025, 09:31 GMT | Insight) -- The Tokyo District Court ruled that Japan’s leading film producer Toho breached a collaborative copyright agreement with a small content production company governing an anime series, declaring that Toho forfeited its copyright by failing to consult with its joint copyright owners before adapting the anime series into video games and stage performances.The Tokyo District Court ruled that Japan’s leading film producer Toho breached a...

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