. . "飯塚忠雄" . "飯塚忠雄" . "Tadao Iizuka"@en . "Tadao Iizuka" . "1942" . "Tadao"@en . "飯塚忠雄" . . "忠雄" . . "Iizuka"@en . . "タダオ イイズカ" . "タダオ" . "イイズカ" . "飯塚" . . "忠雄 飯塚"@ja-JP .