Talks urged

US Trade Representative Mickey Kantor Dec. 27 called for emergency talks with Japan on semiconductor trade following a report of a new drop in Japan's purchase of foreign semiconductors. ``This latest share number [18.1 percent] raises serious concerns regarding Japan's commitment to fully implement the Semiconductor Arrangement,'' Mr. Kantor said in a statement. The arrangement calls for Japan to improve its market share of foreign semiconductors to an average of 20 percent over the four quarters of 1993, at a minimum, he said.