LG Electronics Inc. of South Korea sued a joint venture of Toshiba Corp. and Samsung Electronics Co. in federal court in Delaware alleging infringement of four U.S. patents for optical-disc technology.
Lawyers for Seoul-based LG said in today's complaint that Toshiba Samsung Storage Technology Corp. of Tokyo knew about the inventions because it licensed the patents until the end of 2010.
The defendants "have failed to renew their license to the patents-in-suit, and defendants therefore knowingly remain unlicensed," LG officials said in court papers.
The inventions, patented since 2000, cover rewritable...
Apple and Samsung continue to make up more than half the smartphone market in the U.S., with Apple taking 31 percent and Samsung 24 percent among manufacturers, according to new NPD Group data.