Tokyo stocks rose Monday morning after the Bank of Japan’s Tankan survey showed a better-than-expected improvement in sentiment among major manufacturers. The 225-issue Nikkei Stock Average gained 104.32 points, or 0.26 percent, from Friday to 39,687.40. The broader Topix index was up 13.71 points, or 0.49 percent, at 2,823.34. The U.S. dollar moved narrowly mostly in the upper 160 yen range amid vigilance about a possible yen-buying intervention by Japanese authorities in response to the yen’s rapid depreciation, dealers said. At noon, the dollar fetched 160.89-91 yen compared with 160.84-94 …