Yonex raised its sales by 13.7 percent to 54,159 million Japanese yen (€437.9m-$495.7m) for the full year to the end of March. The operating income of the Japanese racquet sports and golf company soared by 57.5 percent to ¥3,279 million (€26.5m-$30.0m) and its net profit was up by 31.4 percent ...