On 22 November, Japanese LED maker Nichia Corp filed an amended complaint in its on-going patent infringement lawsuit against Taiwanese LED maker Everlight Electronics Co Ltd and its US subsidiary Everlight Americas Inc, originally filed on 11 September in the US District Court for the Eastern District of Texas.

In addition to its original claim alleging infringement by Everlight of US Patent No. 7,432,589, Nichia’s amended complaint includes claims alleging infringement by Everlight of three other US Patents: No. 7,462,870, No. 7,521,863, and No. 8,530,250. Nichia also named two new defendants in its infringement claim under US Patent No. 8,530,250: Zenaro Lighting Inc (a US subsidiary of Everlight Electronics Co Ltd) and Zitroz LLC (a US distributor of Zenaro’s products).

Nichia says that it seeks to protect its patents and other intellectual property rights and takes action against infringers in any country, where appropriate and necessary.

In response, Everlight says that it will continue to defend and fight for the rights of its clients and shareholders. “Nichia recklessly filed a series of patent litigation against Everlight since 2006,” it claims. “However, in 2011, both the civil and administrative actions brought by Nichia in Taiwan obtained final rulings against Nichia.” Everlight has also filed litigation cases such as patent infringement suits against Nichia in the USA, Germany, Japan and China.

“Everlight has continuously shown respect towards intellectual property, and currently holds more than 1600 patents in order to protect customer’s interests,” the firm continues. “With respect to Nichia’s amended complaint, Everlight believes that it is meaningless.”