White light LED patent dispute billion light victory over Japan

Yiguang officially released a press release on the 27th, saying that in April 2012, Yiguang filed a patent invalidation and non-infringement claim against the US patents US5,998,925 and US7,531,960 in the US District of Michigan. The two patents are YAG phosphor powder for patents related to LED and phosphor concentration. On April 22, 2015, the jury of the Eastern District Court of the United States of Michigan decided that the rights claimed by Nichia could be invalidated on the grounds that the patent was not progressive and the patent was not enforceable. In addition, in March 2012, Yiguang also filed a patent invalidation lawsuit against the German Federal Patent Court of the German Patent White No. DE69702929 (EP0936682). The German Federal Patent Court issued an invalid judgment on the patent in September 2014, which contained all the rights of the patent as invalid, and the Japanese Asianization had to bear the referee fee. The above two cases were the major victory after Yifei won the invalidation of Japan Yaping White LED Japan Patent No. JP4530094 in May 2014. After the review, the Japanese Yahua appealed and revised the JP4530094 and was approved by the Japan Patent Office. However, Yiguang's product technology has nothing to do with the scope of the revised patent. For many years, Everlight has continued to invest in the research and development and design of new products, materials and processes, strengthen the layout of intellectual property rights, improve product competitiveness, meet customer needs and protect the rights and interests of customers.

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