TOKYO, Japan (AFP) — Tokyo shares opened higher Tuesday as the yen’s fall boosted exporters including Toyota and Panasonic, while markets awaited Federal Reserve chair Janet Yellen’s speech later in the day. Tokyo’s benchmark Nikkei 225 index rose 0.46 percent, or 92.01 points, to 20,245.36 in morning trading, while the Topix index of all first-section issues gained 0.45 percent, or 7.31 points, to 1,619.52 yen. In currency markets, the dollar firmed to 111.92 yen, against […]