Leading Asian stock market index Nikkie of Tokyo stocks opened this week's activity on a sharp higher on following Wall Street's solid lead late last week.
As of 9:15 am local time, the 225-issue Nikkei Stock Average climbed 250.13 points, or 1.14 percent, from Friday to 22,120.69, Xinhua reported.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 24.09 points, or 1.50 percent, at 1,629.49.
All industry categories advanced into positive territory, with notable gainers comprising bank, nonferrous metal and mining-linked issues.