Japan’s Nikkei share average rose for a fourth straight session on Thursday as a weaker yen boosted investors’ risk appetite, while Fujitsu Ltd surged on news that Lenovo is taking over its computer business.

The Nikkei gained 0.5 per cent to 16,899.10 points.

Fujitsu surged 5.7 per cent after Reuters reported, citing a source, that China’s Lenovo group Ltd was in talks to bring Fujitsu’s personal computer business under its control.

The broader Topix rose 0.5 per cent to 1,353.93 and the JPX-Nikkei Index 400 added 0.5 per cent to 12,123.26.