The Nikkei 225 advanced 1.1%, or 97.27 points, to 8,929.20, while the broader Topix climbed 1.2%, or 9.16, to 769.85.
Japan's Cabinet Office is to announce change in month-on-month core machinery orders on Thursday. Orders rose 14.8 per cent in November, after declining 6.9 per cent in October.