A man walks by an electronic stock indicator of a securities firm in Tokyo Thursday, April 9, 2015, showing Japan's Nikkei 225 stock index that rose 131.41 points to 19,921.22, tapping fresh 15-year highs as the Japanese yen softened against the U.S. dollar. Asian shares were mixed Thursday, with gains supported by lower oil prices, firmness in U.S. markets and strong buying in Hong Kong by mainland Chinese investors.