Sony sued over Blu-ray

Irvine, California-based Target Technology has filed a suit against Sony, seeking damages for alleged patent violations related to the electronics giant’s Blu-ray technology. The suit, which names Sony Computer Entertainment America, Sony Pictures and Sony DADC, claims that products marketed under the Blu-ray name infringe on a patent Target owns for reflective-layer materials in optical discs. The patent addresses what Target called a need for specific types of silver-based alloys with the advantages (but not the price) of gold. According to the patent, the alloys are also more resistant to corrosion than pure silver.

Target does not specify in its suit whether it believes all of Sony's Blu-ray discs infringe on the Target patent or whether the suit applies to just a portion of the discs manufactured. The patent was filed in April of 2004 and granted in March of 2006. Target is seeking a permanent injunction that would prevent Sony from violating Target patent rights in the future, as well as damages, with interest, multiplied due to what Target characterizes as deliberate and willful infringement.

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