Production Credits
Masao Okubo has 20 production credits.Visual Effects
Credited for Key Animation in 14 shows - Girl Detective Club, Bubblegum Crash, Giant Robo: The Day the Earth Stood Still, Dirty Pair Flash, My Dear Marie, Nightwalker: The Midnight Detective, Bleach, YuruYuri: Happy Go Lily, Inazuma Eleven Go: Kyuukyoku no Kizuna Gryphon, Blue Exorcist: The Movie, Log Horizon, Puzzle & Dragons, Case Closed: Zero the Enforcer and Yo-kai Watch: Forever Friends.
Credited for Opening/Ending Animation in 1 show - One-Punch Man.
Art
Credited for Storyboard Artist in 4 shows - Maid Sama!, Tonari no Seki-kun: The Master of Killing Time, One-Punch Man and Record of Ragnarok.
Directing
Credited for Series Director in 1 show - Record of Ragnarok.