ドラゴンボール, 原創

Mr. Koyama's illustrious career writing for such shows as Dragonball, Gatchaman, Project A-ko, Urusei Yatsura, Saint Seiya, Dr. Slump, Shurato, Time Bokan, NG Knight Lamume & 40 and Slayers. Mr. Koyama is also the writer for 13 of the 14 Dragonball movies. Mr. Koyama is also the founder of Brother Noppo, a writer's collective that he started with his proteges, and he has a lot of proteges. They include Hideki Mitsui, Yumi Kageyama, Aya Matsui, Satoru Akahori, and some 21 more. Without him or his proteges, shows like Gundam Wing or Sakura Wars wouldn't have been written.