Dwango case– tag –
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Japan’s Supreme Court Expands Patent Protection to Cross-Border Digital Services
On March 3, 2025, Japan’s Supreme Court issued a landmark ruling in favor of Dwango Co., Ltd. in a patent infringement lawsuit against FC2, Inc. and Homepage System Co., Ltd. The ruling clarifies the extraterritorial reach of Japanese pa... -
Grand Panel Decision of the IP High Court – Dwango v. FC2 No. 10046(Ne) 2021
The Intellectual Property (IP) High Court of Japan has issued an important grand panel decision on a patent infringement case (Dwango vs. FC2 Case No. 10046 (Ne) 2021) on May 26, 2023. The case is well known as the Japanese version of th...
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