Tokyo stocks ended higher Tuesday as buying of export-oriented issues was spurred by the weak yen, but the upside was capped amid caution ahead of U.S. inflation data due out later in the week. The 225-issue Nikkei Stock Average ended up 176.60 points, or 0.46 percent, from Monday at 38,356.06. The broader Topix index finished 6.87 points, or 0.25 percent, higher at 2,730.95. On the top-tier Prime Market, gainers were led by oil and coal product, miscellaneous product and marine transportation issues. The U.S. dollar rose to the mid-156 yen level in Tokyo on persistent speculation that U.S. in…