Shinichirou Ushijima has an Assistant Director credit for episodes 90-148 of Hunter x Hunter (2011).
assistant director (eps 90-148)
TV anime / 2011
assistant director
TV anime / 2015
director
Movie / 2018
OVA / 2015
TV anime / 2016
TV anime / 2023
TV anime / 2027
TV anime / 2025
chief animation director
Music video / 2021