After The Japanese Patent Office (JPO) rendered Nichia's patent JP2780691 invalid on November 12, 2012, Nichia decided to file for a Correction Trial at the JPO to conduct claim amendment. Subsequent to the trial procedure, the JPO upheld its previous decision to invalidate all claims of JP'691 again, said Everlight Electronics.
Everlight said that both the civil and administrative actions brought by Nichia in 2011 obtained their final judgments that Nichia was defeated, and that it will not initiate patent litigation arbitrarily.
Source:
http://www.digitimes.com/news/a20130822PR205.html