The Nikkei 225 dived 175.84 to 11,355.27, after a 9% slide in D-Ram memory-chip prices on Friday sent shares of chipmakers and equipment makers down. Good earnings news helped to support some big blue-chips, with the Toyota motor giant up more than 1% ahead of what are expected to be record earnings figures later today. Mitsubishi Motors jumped 2.5% after forecasting net profits would rise almost 40% to a record 38bn yen (£203m) this year.