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Japan IP court applies narrow view of patent equivalents in mite trap case

By Toko Sekiguchi ( July 1, 2025, 09:34 GMT | Insight) -- Japan’s Intellectual Property High Court has rejected a patent infringement claim under the doctrine of equivalents, applying a strict interpretation of existing standards to a dispute involving mite-collecting products. The court also set a precedent limiting reimbursement rights in business succession disputes. Japan’s Intellectual Property High Court has issued a decision that underscores a strict application of the doctrine of equivalents in patent infringement cases and establishes a precedent on quasi-contractual reimbursement rights in the context of business succession....

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