Japan equities inched up after the weakening of national currency and positive data on China's manufacturing expansion. The Nikkei 225 surged 0.2 percent to 8,946.87 by 3 p.m. in Tokyo, rebounding from a 0.6 percent fall. The Topix index advanced 0.1 per cent to 743.32. Construction machinery producer Komatsu Ltd. increased 3.1 per cent, while Nippon Meat Packers Inc. jumped 13 percent.