Sega sues Memento Mori developer for patent infringement， seeking an injunction to stop the game being made and 1 billion yen in damages．

Sega has filed a lawsuit against Bank of Innovation, developer and operator of the smartphone game “Memento Mori” (iOS, Android, PC), seeking an injunction against the company for infringing on its patent rights and demanding that the game be halted. Bank of Innovation revealed this on October 21st. According to the company, Sega had presented licensing terms to the company, claiming that Memento Mori and the now-ended Phantom Beast Contract Cryptract infringed five patents held by Sega. The two companies were reportedly in discussion. However, “our view was not accepted by the plaintiff (Sega), which led to the filing of a lawsuit.” The five patents in question include a program (Japanese Patent No. 5930111) that progresses through a video game by arranging cards or other control media on a playfield and reading the data recorded on the back of the media. Sega is seeking an injunction to stop Memento Mori, 1 billion yen in damages, and late payment charges. “We believe there is no evidence that our service infringes the patent rights in question, and we will clarify the validity of our claims during the litigation,” boi said. Whatever the outcome of the lawsuit, we intend to continue providing the Memento Mori service by taking necessary measures.” Memento Mori is an idle RPG for smartphones and PCs released by Bank of Innovation in October 2022. According to Sensor Tower, a US mobile market research company, the app has been downloaded more than 2.9 million times in the year since its launch. As of November 15, 2011, the film’s cumulative worldwide revenue exceeded 180 million dollars (approximately 27.1 billion yen).