山本保博，Yasuhiro Yamamoto is a director and assistant director, known for Oka ni agatta gunkan (2007), Naze watashi wa eiga o tsurunoka: 95-sai eiga kantoku Shindô Kaneto no jônetsu (2007) and Ishiuchi jinjô kôtô shôgakkô: Hana wa chiredomo (2008).