Yonex saw its net income rise by 44 percent to 1,730 million yen (€12.00m-$14.94m) in the first half ended Sept. 30. Operating income went up by 39 percent to ¥1,579 million (€10.96m-$13.64m) on 9 percent higher sales of ¥23.79 billion (€0.17m-$0.21m).