Tokyo stocks rose Friday morning, lifted by the jump of heavyweight Fast Retailing after the Uniqlo clothing chain operator released an upbeat earnings report and outlook the previous day. The 225-issue Nikkei Stock Average rose 231.93 points, or 0.59 percent, from Thursday to 39,612.82. The broader Topix index was up 5.36 points, or 0.20 percent, at 2,718.03. The U.S. dollar remained weak in the upper 148 yen zone as higher-than-expected weekly U.S. unemployment claims raised concern about the health of the U.S. economy, dealers said. At noon, the dollar fetched 148.66-67 yen compared with 14…