Nikkei set to open lower on US downgrade
By Ayai Tomisawa TOKYO, Aug 5 (Reuters) – Japan's Nikkei stock benchmark tumbled on Friday to its lowest since its post-quake plunge in March, hit by sliding US stocks as worries about the global economy dominated, but the index stablised near support Aug 6 (Reuters) – Sony Corp plans to launch a range of organic [...]