. . "Hiroo"@en . "ヒロオ トチクボ" . "宏男" . . "栃窪宏男" . "宏男 栃窪"@ja-JP . "トチクボ" . "栃窪" . "Tochikubo"@en . "Hiroo Tochikubo" . . . "1934" . "Hiroo Tochikubo"@en . "Hirō" . "ヒロオ" . . "Hirō Tochikubo" . "栃窪宏男" . . "栃窪宏男" .