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Fujitsu Files Patent Suits Against Samsung SDI
Apr 7, 2004
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Fujitsu Limited announced that it has asserted patent infringement claims against Samsung Japan Corporation in Tokyo District Court and Samsung SDI Co., Ltd. in U.S. Federal District Court in Los Angeles, CA, U.S.

Fujitsu seeks a court order against future importation and sales of infringing plasma display panel (PDP) products, and compensation for past infringement. In addition, the company is seeking administrative injunctive relief under a Japanese customs and tariffs law, which prohibits importation of products that infringe Japanese patents.

The lawsuit filed in Tokyo alleges infringement of Japanese patent No. 2,845,183, which Fujitsu says is one of its basic patents in PDP field. Ten other patents are alleged to be infringed in the claims asserted in Los Angeles.

Fujitsu alleges that PDPs manufactured by Samsung SDI infringe Fujitsu’s PDP patents. PDPs are the principal component of plasma display television sets, one of the fastest growing segments of the flat-screen television market.

Before asserting these claims, Fujitsu said it sought to negotiate reasonable compensation for Samsung SDI’s use of Fujitsu’s PDP inventions. The Japanese company said that Samsung SDI refused its requests and that Samsung has continued to manufacture and sell PDPs that Fujitsu contends infringe Fujitsu’s PDP patents.

"Fujitsu has invested over 30 years and very significant resources in developing commercially viable PDP technology," Masanobu Katoh, group president of Fujitsu Limited's Intellectual Property Group, said in a statement. "We cannot permit others to exploit these valuable inventions without appropriate compensation."

According to a Reuters report, Samsung SDI said it had not seen the suit, but said that it saw the Fujitsu move as a countermeasure to its own lawsuit filed in February in a California court, regarding the Japanese firm's claim that it holds patents over eight PDP technologies.

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