"Yoichi Watanabe" . "Yōichi" . "洋一 渡辺"@ja-JP . "ヨウイチ" . . . . "渡辺" . "Yoichi" . "Yōichi Watanabe" . "ワタナベ" . "洋一" . "1942" . "Watanabe" . "ヨウイチ ワタナベ" . . .