daihatsu japan open 2024しいでめ ダイハツジャパンオープン2025のサイトです DAIHATSU JAPAN OPEN 2025 BADMINTON CHAMPIONSHIPS PART OF THE HSBC BWF World Tour Super 750.The 2025 Japan Open (officially known as the Daihatsu Japan Open 2025) was a badminton tournament which took place at Yokohama Arena in Yokohama, Japan