Tokyo stocks rose slightly Friday morning, as investor sentiment improved after Wall Street rebounded overnight from a sharp fall. The 225-issue Nikkei Stock Average rose 64.42 points, or 0.19 percent, from Thursday to 33,204.89. The broader Topix index was up 10.79 points, or 0.46 percent, at 2,336.77. On the top-tier Prime Market, gainers were led by marine transportation, bank, and pulp and paper issues.