Tokyo stocks fell slightly Friday morning, as exporters were sold on a stronger yen after the Bank of Japan chief indicated the central bank will continue normalizing monetary policy if it is likely to achieve its inflation target. The 225-issue Nikkei Stock Average fell 93.57 points, or 0.24 percent, from Thursday to 38,117.44. The broader Topix index was down 3.90 points, or 0.15 percent, at 2,667.50. The U.S. dollar briefly weakened to the lower 145 yen range in Tokyo on yen buying after BOJ Governor Kazuo Ueda left open the prospect of further interest rate hikes, while vowing to closely w…