Everlight filed an invalidation action with the Japan Patent Office against Nichia Corporation’s blue LED patent No. JP2780691.
The Japan Patent Office rendered a decision in favor of Everlight on Nov. 12, 2012, holding that Nichia’s patent JP2780691 is totally invalid.
Following Nichia’s YAG white light LED patent No. JP3503139, which was found invalid by Japan Patent Office this May, JP2780691 is another one of Nichia’s core patents that have been declared as invalid. Everlight believes that this decision is entirely reasonable.
Source:
http://www.ledinside.com/news/2012/12/nichia_patent_20121206
