Tokyo Customs has begun blocking imports of plasma display panels (PDPs) from South Korea's Samsung SDI in response to a complaint from Fujitsu.
Fujitsu filed a patent infringement suit against Samsung Japan in Tokyo and against Samsung SDI in the US earlier this month. As part of its filing it asked for administrative injunctive relief under a Japanese customs and tariffs law that prohibits importation of products that infringe on Japanese patents.
The customs authorities in Tokyo moved on the request on Wednesday and began blocking imports of PDPs from Samsung, a spokesperson for Fujitsu, said.
A Samsung representative who asked not to be named responded to the move.
He said: "Today's measure is not the final decision. It means Tokyo Customs will consider the case.
"This has already been predicted. Our export volume of PDP to Japan is less that 3 per cent of total production and this will not affect our business. Our main market is not Japan but the US and Europe."
Samsung SDI is preparing counter measures that would depend on the eventual outcome, the spokesperson said.
He would not say what the measures might be.
Fujitsu, through its Fujitsu Hitachi Plasma Display joint venture, and Samsung SDI are two of the world's largest manufacturers of PDPs.