Capcom Suing Koei Tecmo over Expansions, Rumble Features

A report suggests that Capcom are suing Koei Tecmo for patent infringement.

The lawsuit involves a patent that Capcom claims has been infringed in 50 titles, with claims of around 980 million yen (about $9.43 million) expected. The patent is said to revolve around the idea of importing content from expansion discs in conjunction with the original disc to unlock additional content.

Claims also revolve around a feature where controllers vibrate when enemies are nearby, and the publisher feels that this infringement has "greatly contributed to the sales" of Koei Tecmo's titles, like Samurai Warriors: Xtreme Legends.

Do you think Capcom has grounds for this particular lawsuit?