SUNNYVALE, Calif.--UMC Group today said the U.S. International Trade Commission (ITC) has ruled against Oak Technology Inc. in a patent complaint filed against the Taiwan foundry company and its affiliate, MediaTek Inc.
According to U.S.-based officials with UMC, the commission affirmed that there was no act of unfair competition in the case filed by Oak, which had accused the foundry of violating a settlement agreement as well as wrongful use of intellectual property. Details on the ITC's decision will not be available for at least a week, said UMC.
As a result of the ITC decision, UMC said it will press claims against Oak Technology in U.S. District Court. The company is accusing Sunnyvale-based Oak Technology of breaching an agreement with UMC and attempting to create the false impression that the silicon foundry company misused intellectual property (IP).
In an initial determination by an ITC judge, Oak 's patent on CD-ROM controller technology was found invalid on several grounds, but the commission reversed that decision, said UMC, which now plans to appeal that portion of the case.