Quick answer — Shinji Takamatsu worked on Gintama: THE VERY FINAL (Sound Director), Gintama Season 3 (Sound Director), Gintama Season 4 (Sound Director) and 27 more anime.
Shinji Takamatsu worked on Gintama: THE VERY FINAL (Sound Director), Gintama Season 3 (Sound Director), Gintama Season 4 (Sound Director), Gintama.: Silver Soul Arc - Second Half War (Sound Director), Gintama (Storyboard), Grand Blue Dreaming Season 2 (Director), Gintama - The Movie (Director), Grand Blue Dreaming (Director) and 22 more.