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Sony Sued Over Blu-Ray Technology

Law360 (May 4, 2007, 12:00 AM EDT) -- A maker of optical disc coatings has filed a lawsuit against three Sony Corp. subsidiaries over its next-generation media storage Blu-ray Discs.

Target Technology Co. LLC filed the suit Wednesday, claiming that Sony’s Blu-ray Discs “embody” its patented invention for a silver-based alloy thin film used as a coating layer for optical discs. The alloys are highly reflective and protect discs from corrosion.

The suit, which names as defendants Sony subsidiaries Sony DADC U.S. Inc., Sony Computer Entertainment America Inc. and Sony Pictures Entertainment Inc., asks...
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