Sony sued over Blu-ray
 

*Source: GameSpot (http://www.gamespot.com/news/6171498.html)*
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Given its global position as an electronics giant, Sony is quite familiar with patent law. The company is also quite familiar with the potential penalties for running afoul of patent law, as evidenced by the $97 million in damages and interest it had to pay Immersion Corporation in a dispute over the rumble functions in Dual Shock controllers.

While the two companies have since patched things up (http://www.gamespot.com/news/6166644.html), Sony opted to leave rumble by the wayside when it was designing the PlayStation 3's motion-sensing Sixaxis controller. The electronics giant couldn't avoid patent headaches entirely, however, as Irvine, California-based Target Technology Company filed suit earlier this month, seeking damages for alleged patent violations relating to the Blu-ray technology used in the system.

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