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| Revisited patent infringement of China's LED business risk (2) |
| Release date:2012年11月27日 |
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Nichia patents involved in litigation for more than 40 technology involves graphical substrate, crystal growth, and epitaxy (active layer, the ohmic contact layer), chip, electrodes, encapsulation (SMD), the optical system, involvingv. more patented technology for the blue LED, white LED, chip field, multiple Litigation patent: US5998925, US6870191, US7531960, EP622858, EP936682, JP2751963 JP2770720 JP2778405 JP2927279 TW089036 TW160722. U.S. Patent US5998925 (nitride semiconductor containing garnet fluorescent material LED), for example, theme involved the blue chip excitation yellow phosphor YAG, patented white LED field, a very wide range of applications, involving almost white all of the applications of the LED. The patented technology was patented 27 countries around the world, several vendors have been filed invalid, but were not successful. Nichia in succession in April 2004, February 2005, January 2006, 2009, and September 2010, respectively, of The Sharper Image Co., JM Group Inc. and ASP Inc. of Intermatic Inc., Jiawei in California the District Court, Eastern District of Texas District Court and other places filed for the patent infringement litigation. US5998925 will be held in July 2017 maturity, but there are still a lot of subsequent patent applications difficult to completely bypass the relatively important, worthy of LED enterprises pay more attention.
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