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Japan company loses appeal over unmanned boat patent as court backs narrow claim reading

By Toko Sekiguchi ( July 9, 2025, 07:47 GMT | Insight) -- Japan’s Intellectual Property High Court has dismissed an appeal by marine electronics company Coden, rejecting its infringement claim against rival Hydro Systems Development over unmanned boat technology, highlighting the courts’ caution in applying patent equivalents where amended numerical limits are involved.Japan’s Intellectual Property High Court has dismissed an appeal by marine electronics company Coden, rejecting its infringement claim against rival Hydro Systems Development over an automatic return function in unmanned boats....

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