Japanese shares were mixed Monday as investors sold stocks to lock in immediate profits after recent gains, but some export-oriented issues were lifted by the yen's fall against major currencies. The benchmark Nikkei 225 Stock Average lost 13.45 points, or 0.14 per cent, to end at 9,633.93. The Nikkei gained 2.8 per cent last week. The broader Topix index was up 0.96 points, or 0.12 per cent, at 835.25, according to a report of DPA.