Japan supreme court through out Koei Tecmo law suit against Capcom which was a battle over patents from unlocking content on disc by completing the game to rumble features.
“The final appeal settlement brought a complete closure to the lawsuit, which was filed in 2014. Capcom sued Koei Tecmo for infringing a couple of game-related patents owned by the company. The first one involved unlocking more content by reading the disc of a previous game, commonly seen in the Xtreme Legends expansions of Dynasty Warriors and Samurai Warriors games. The other handled controller rumble to convey information not visible on the player’s screen, was used in the Fatal Frame series.
On September 11, 2019, Japan’s Intellectual Property High Court ruled mostly in favor of Capcom. Although the court dismissed some of the first patent’s claims, it upheld all the remaining claims, including the ones for the second patent.
Koei Tecmo was then ordered by the high court to pay 143,843,710 yen in compensation to Capcom. However, it sent a final appeal to the Supreme Court of Japan on September 24, 2019. The Supreme Court announced its decision to reject this appeal on December 15, 2020.”

Article:Koei Tecmo Final Appeal in Capcom Lawsuit Rejected by Supreme Court (siliconera.com)
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