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Nichia Files Patent Infringement
Lawsuit Against Seoul Semiconductor

Nichia Corporation Press Release - 9/19/2007

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New lawsuit filed in Korea over top-view white LEDs

Seoul Semiconductor's P4 LED

Seoul Semiconductor's P4 LED

TOKUSHIMA, Japan - Nichia Corporation ("Nichia") announced today that it filed a lawsuit on September 17, 2007, in the Seoul Central District Court against Seoul Semiconductor Co., Ltd. ("Seoul Semiconductor") for infringing Nichia's patent.

The suit alleges that Seoul Semiconductor's top-view type white LED products (part no. TWH104-HS) infringe Nichia's Korean patent (no. 406201), and Nichia seeks damages for past infringement as well as an injunction against any further infringing activity.

A lawsuit against Seoul Semiconductor in the United States based on Nichia's design patents for side-view type white LEDs, and a lawsuit against Seoul Semiconductor and its distributor, Kyoei Sangyo, in Japan based on Nichia's patents for lighting LEDs are currently pending. In these lawsuits, Nichia is seeking damages for past infringement as well as an injunction against any further infringing activity.

About Nichia Corporation

Having "Ever Researching for a Brighter World" as our motto, Nichia has grown in the field of manufacturing and sales of fine chemicals, particularly inorganic luminescent materials (phosphors). In the process of the challenging pursuit of brighter luminescent and light-emitting materials, we succeeded in developing and commercializing the super high brightness Blue LED in 1993. It was accepted with great amazement in the related industries throughout the world. Since the first announcement of the Blue LED in 1993, Nitride-based LEDs in different emission colors ranging from Ultraviolet to Yellow have been contributing to the diversification of LED application fields. In addition to LEDs, a lot of resources are now being focused on the R/D of bluish purple laser diodes, which will definitely play a key role for the further expansion of the information media industry. We have a belief that Nitride-based semiconductors will become one of the most exciting areas of the semiconductor industry in the near future. We hope that Nichia continue to be a company which will be able to make a contribution to the world by evolving its original and unique technologies into the actual manufacturing.

For more information, visit the company's website at:

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