The Nikkei stock index ended 0.04 percent higher in the morning session of Tuesday helped by the yen 's further depreciation.
The 225-issue Nikkei Stock Average was up 6.36 points, from Monday to 15,897.31.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange gained 5.86 points, or 0.45 percent, at 1,302. 26.
Gainers were led by insurance, utility and real estate issues.