Nichia Files Four Provisional Injunction Actions Against LED Bulb Seller
Source/Type:  LIGHTimes Online - News - Staff reports

Author: LIGHTimes News Staff

September 8, 2010... Nichia Corporation reports that it has filed four provisional injunction actions in Tokyo District Court to enjoin Tsannkuen Japan (Sankun Nihon Denki Kabushiki Kaisha) from infringing Nichia's patents. Nichia alleges that the white LEDs used in certain LED light bulb products of Tsannkuen Japan, sold by G.K. Seiyu and K.K. Yamada Denki, infringe Nichia's white LED patents (No. 3724498, No. 3995011, No. 4109297, No. 4530094). For this reason Nichia filed the provisional injunction actions in Tokyo District court. According to Nichia, the alleged patent infringement concerns one of Nichia's patents covering the technology of combining phosphor with blue LED. Nichia notes that this technology is employed in many white LED products that combine phosphor with a blue LED.

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