nitrides

Philips Lumileds Boasts Performance Records

Philips Lumileds announced the acheivement of several LED performance records at 1 Amp. The performance records the company claimed include: luminence of 38 mega nits (Mcd/m2) for white devices. The company says this is about 60 percent more luminance than automotive halogen bulbs (about 25 mega nits) achieve. In blue …

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Dr. Shuji Nakamura and UCSB Research Team Report First Nonpolar and Semi-Polar GaN LEDs

Dr. Shuji Nakamura and a University of California, Santa Barbara (UCSB) team have reported making the first LEDs on non-polar and semi-polar GaN substrates. In an address to delegates at the International Symposium on Blue Lasers and LEDs (ISBLLED) in Montpellier, France, Dr. Shuji Nakamura explained the results of of …

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Osram Files Patent Infringement Suit Against Kingbright in Germany

Osram Opto Semiconductors has filed a lawsuit alleging patent infringement committed by Kingbright Electronic Co., Taipei, Ltd. and Kingbright Europe, its German subsidiary. The lawsuit was filed at Dusseldorf Regional Court in Germany. In the suit Osram alleges that Kingbright has infringed and is currently infringing its patents through selling, …

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Nichia Clarifies 404 Patent Abandonment

After numerous inquiries, Nichia issued a statement clarifying their previous news release about the abandonment of the “404 patent” for gallium nitride growth needed in blue LEDs. (Ref: our coverage). As our readers may recall, the 404 patent was related to the heated dispute between former Nichia employee, Shuji Nakamura …

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Nichia Attempts Explanation of ‘404 Patent Abandonment

Nichia attempted to clarify the reasoning behind waiving its right to the gallium nitride growth patent for blue LEDs on Wednesday. Nichia says it gave up its contentious gallium nitride growth patent for blue LEDs in order to save 5.2 million yen per year in patent maintenance costs. This excuse …

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Epistar Settles Most Recent Nichia Patent Dispute “Peacefully”

In a series of ongoing juxtapositioning of the world’s major advanced LED manufactuers, Epistar of Taiwan reports that they have settled their patent lawsuit with Nichia of Japan, “peacefully,” according to an article in Digitimes which cited the Chinese-Language Economic Daily News. Digitimes also reported that Nichia will drop patent …

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Osram and Avago Sign Cross-License Agreement

Osram Opto Semiconductors GmbH and Avago Technologies announced signing a limited cross-license patent agreement. Osram has granted Avago the license to manufacture and sell white LEDs with special conversion technology and surface mount (SMD) LEDs. Avago has granted Osram a patent license covering certain LED systems including those for projection …

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Cree Leverages US Patent for White LEDs With Taiwan Company

Cree Leverages US Patent for White LEDs With Taiwan Company LED manufacturer and innovator, Cree Inc. has again leveraged its white LED patent (U.S. Patent No. 6,600,175) to yet another manufacturer. Kingbright, a company that Cree calls a “strategic LED chip customer” with headquarters in Taiwan, will be authorized to …

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Cotco Uses License For Cree White LED Technology

Cotco, a prominent LED manufacturer based in Taiwan, has licensed Cree’s white LED patent (6,600,17). According to Cotco this enables Cotco’s LED buyers to acquire white LEDs that incorporate Cree dice without violating Cree’s patent ‘175. The license allows Cotco to use Cree’s phosphor conversion technology and their InGaN LEDs. …

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