Four leading consumer electronics companies including Sony Corp. and Sanyo Electric Co. Ltd., Exceed and Lucky Light, have agreed to license patents owned by a Columbia University Professor Emerita that cover basic semiconductor technology used in Blu-ray video players as well as mobile phones, digital cameras and other devices, Dreier LLP announced today.The agreements with Sony, Sanyo, Exceed Perseverance Electronic Ind. Co., Ltd. and Lucky Light Electronics Co. Ltd., are the latest settlements reached in an LED and LD patent case against 31 companies that was brought before the U.S. International Trade Commission (ITC) by Columbia University Professor Emerita Gertrude Neumark Rothschild.

Earlier this year, Seoul Semiconductor Co. Ltd, a South Korea-based maker of LEDs, and Taiwan's Everlight Electronics Co. Ltd. signed agreements with Professor Neumark Rothschild, who conducted groundbreaking research in the 1980s and 1990s into the light-emitting diodes (LEDs) and laser diodes crucial to a host of today's consumer electronics products.

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