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InterDigital is a company that develops wireless technologies for mobile devices, networks, and services worldwide. Founded in 1972, InterDigital is listed on NASDAQ and is included in the S&P MidCap 400 index. InterDigital has a portfolio of about 20,000 U.S. and foreign issued patents and patent applications. In 2012 Business Insider put them on their list of the 8 most fearsome patent trolls.〔(【引用サイトリンク】url=http://www.businessinsider.com/biggest-patent-holding-companies-2012-11 )〕 They are frequently called patent trolls because instead of innovating and then building products, they file broad patents on basic communications technology and then sue others for independently coming up with the same innovation.〔(【引用サイトリンク】url=http://readwrite.com/2013/01/04/the-fine-line-of-a-patent-troll )〕〔(【引用サイトリンク】url=http://www.theregister.co.uk/2013/10/16/supreme_court_kicks_nokia_and_its_mates_into_touch/ )〕 ==Corporate history== Key Dates: * 1972: Company is incorporated as International Mobile Machines Corporation. * 1981: Company goes public. * 1992: Name is changed to InterDigital Communications Corp. * 1998: Alliance with Nokia is established. * 2003: Patent infringement suit is settled with Ericsson. * 2012: Moved corporate headquarters from King of Prussia, Pennsylvania to Wilmington, Delaware 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「InterDigital」の詳細全文を読む スポンサード リンク
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