Irvine, CA (AHN) - Target Technology has filed a lawsuit against Sony, alleging the entertainment company's Blu-ray disc format infringed a patent lowering the cost of optical discs. The lawsuit, filed in Southern Indiana U.S. District Court, requests a permanent injunction and damages.
Blu-ray discs are used by Sony's PS3 and high-definition DVDs. The Target patent enables the reflective layer of optical discs to use silver-based alloys rather than more expensive gold. The silver-based material is also more corrosive-resistant, according to Cnet's GameSpot.
The lawsuit doesn't say whether all or just some Blu-ray discs infringed the patent. Target was granted the patent in March 2006 after it was filed in 2004.