Between Seoul, Nichia and SemiLEDs company patent disputes

Seoul maintains its "important" InGaN LED patent

Seoul semiconductor has announced that the company's production of indium gallium nitride (InCaN) - based LED or by blue, green, white or UV packaging, the product obtained only unique Seoul. These patents were awarded in December 1991 and include a U.S. patent number: 5075742.

The patent relates to the multilayer structure of semiconductor materials, some of which contain some solid inclusions. These inclusions have narrower band gap than the surrounding materials. This type of material structure is being used in the indium gallium nitride light-emitting layer.

The patent is the United States District Court (the United States District) to make decisions in eastern Texas. The lawsuit was filed by Seoul, against two leading LED display manufacturers, with Daktronics.

Seoul semiconductor said that the United States District Court agreed with their patents, and that the patent on InCaN based LED technology is necessary.

Seoul semiconductor said, in addition to the patents, they are Japan, Germany, Britain and France obtained a series of patent, and from Seoul to the appropriate business partners have been licensed to these patents. Currently, three companies have access to their patents.

Seoul believes that they will take the necessary measures to protect their intellectual property rights, and the infringement of Seoul's patent rights may be subject to injunctive relief."

Between Seoul and stop Nichia patent litigation

At the beginning of February, Nichia and Seoul semiconductor (SSC) issued a statement, announced a series of patent litigation in their long-term negotiations has ended, and the two sides will sign a cross licensing agreement. However, in February 18th, Nichia had issued a statement, said he would stop between competing with Seoul.

The statement according to various news reports, some news have been reported or dark over Seoul in the global LED market and arias, signed a cooperation agreement. A statement published that "in order to Nichia, avoid any misunderstanding, in any case, Nichia wants to clarify, whether photopic or scotopic is, as long as it relates to the LED market, and Seoul is no longer Nichia reached any agreements or contracts, not to mention any cooperation agreement on sales reached LED."

Between SemiLEDs and Nichia patent dispute has been resolved

Co. Ltd. and Semi-Photonics Nichia, solve their patent disputes in Osaka District Court (case No. Hei 19 (WA) 10399).

Semi-Photonics is an SemiLEDs company (Boise, Idaho, USA) a wholly owned subsidiary, due to its Nichia patent disputes have been resolved, the company has "v..

Because of Seoul using the chip is provided by SemiLEDs company, therefore, SemiLEDs company has been involved with the Seoul Nichia one case.