Capcom is reportedly suing Koei Tecmo for patent infringement, according to reports out of Japan.
Publication Sankei reports, via Siliconera translations, that Capcom seeks damages of roughly 980 million Yen (around $9.43 million) for damages related to the alleged use of its technology in Koei's Dynasty Warriors and Samurai Warriors franchises.
The exact details of the patent are unclear, but it related to a method for the delivery of expansion pack content to a released game.
More specifically, it appears the complaint is aimed at Koei's delivery of physical disc-based DLC expansions to games in the aforementioned franchises. The complaint also makes mention of another patent related to a controller vibration that serves as a notification for when an enemy is near the player character, although the significance of this is also unclear.
Capcom seeks roughly 10 per cent of what it claims to have been a total around 97 billion Yen in sales of the infringing titles, which it says would account for the licensing of its technology. It also demands the suspension of sales of offending titles.