Japanese electronics maker Pioneer filed a complaint against South Korean plasma display maker Samsung SDI alleging infringement of Pioneer patents related to plasma display technology.
Samsung SDI, a flat-panel television-making subsidiary of Samsung Electronics, denied it was using Pioneer's patents and said it planned to fight the lawsuit.
Tokyo-based Pioneer said in a statement that it was seeking a court order to enjoin sales of allegedly infringing Samsung SDI products in the suit filed in the US District Court for the Eastern District of Texas.
The company also plans to seek an unspecified amount of compensation for past infringement, it said.
The lawsuit also names several other Samsung companies, the statement said without identifying them.
Pioneer has been developing a portfolio of fundamental patents in the field and had been negotiating with SDI for a license to the portfolio since April 2005, the statement said.
Last December, Samsung SDI filed a lawsuit against Japan's Matsushita Electric Industrial for alleged violation of patents related to plasma-screen technology.