Tokyo stocks were mixed Friday morning after hitting record highs in early trading, as buying tracking overnight rises in major European markets was offset by selling to lock in gains. The 225-issue Nikkei Stock Average climbed 137.84 points, or 0.34 percent, from Thursday to 41,051.49. The broader Topix index was down 3.05 points, or 0.11 percent, at 2,895.42. The U.S. dollar fell slightly to the upper 160 yen range in Tokyo on selling by domestic exporters for settlement purposes, while a wait-and-see mood prevailed ahead of the release of a key U.S. employment report later in the day. At no…