Tokyo's Nikkei share average opens down 1.31 pct

TOKYOS-NIKKEI-SHARE-AVERAGE-OPENS-DOWN-131-P:Tokyo's Nikkei share average opens down 1.31 pct

Japan's benchmark Nikkei average opened down 1.31 percent at 8,539.71 on Friday, while the broader Topix shed 1.16 percent to 724.50.