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Cree, Inc. is a multinational manufacturer of semiconductor light-emitting diode (LED) materials and devices, with its headquarters in Durham, North Carolina. Most of its products are based on silicon carbide. Cree was formed in 1987 by researchers from North Carolina State University. In 2005, Cree opened a subsidiary, Cree Asia-Pacific Ltd., in Hong Kong.〔(【引用サイトリンク】title=Cree Subsidiary Opens in Hong Kong - Cree, Inc. (Photonics Spectra | Dec 2005 | Light Speed) )〕 In March 2007, Cree acquired Cotco Luminant Device Ltd of Hong Kong, a supplier of high brightness LEDs in China, for $200 million. In 2009, Cree announced an agreement to purchase a facility in Huizhou, Guangdong Province, China, Cree’s first chip production facility outside of North America. Also in 2009, Cree announced an expansion at its Durham plant. On February 8, 2012, Cree announced the XLamp XT-E, which they said delivers twice as much light for the same price as older LEDs. In October 2013, Cree's first consumer products, two household LED bulbs qualified for Energy Star rating by the United States Environmental Protection Agency. Competing companies in the LED industry include Bridgelux, Inc, Nichia Corporation, Osram Opto Semiconductors, General Electric, and Philips Lumileds Lighting Company. Cree has 10% of the North American market. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cree Inc.」の詳細全文を読む スポンサード リンク
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