Tokyo stocks advanced Thursday morning as exporters were bought on the yen’s weakness against the U.S. dollar after Bank of Japan Deputy Governor Shinichi Uchida expressed caution about a future monetary policy shift. The 225-issue Nikkei Stock Average rose 618.50 points, or 1.71 percent, from Wednesday to 36,738.42. The broader Topix index was up 11.79 points, or 0.46 percent, at 2,561.74. On the top-tier Prime Market, gainers were led by transportation equipment, electric appliance and precision instrument issues. The dollar edged up in the lower 148 yen range, spurred by dovish comments fro…