The 225-issue Nikkei Stock Average added 110.68 points, or 0.37 percent, from Thursday to 29,819.66.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, rose 11.70 points, or 0.60 percent, at 1,963.56.
Precision instrument, marine transportation and securities house issues comprised those that advanced the most by the morning break.
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