"Ōkubo" . "Hiroshi Ōkubo" . . "Okubo Hiroshi" . "Okubo"@en . "Hiroshi Okubo" . "敬 大久保" . . "H. Okubo"@de-DE . "Hiroshi Ōkubo" . "H." . "大久保博司" . "大久保博史" . . "大久保博司" . "大久保" . . "1900" . "Okubo, H. (Hiroshi)" . "Ōkubo Hiroshi" . "H. Okubo" . "大久保博" . . "大久保" . "敬" . . "Hiroshi"@en . "大久保 敬" . "大久保宙" . "大久保博史" . "Hiroshi Okubo"@en . "大久保博" . "大久保宙" . "Ōkubo"@fr-FR . . .