Takao Koyama

1987

• [ ] Project A-Ko 2: Plot of the Daitokuji Financial Group (Screenplay) 

1988

• [ ] Saint Seiya: The Heated Battle of the Gods (Writer) 

1989

• [ ] Dragon Ball Z: Dead Zone (Writer) 

1990

• [ ] Mashin Hero Wataru: Mt. Soukai Heroic Legend (Screenplay) 
• [ ] Dragon Ball Z: The World's Strongest (Screenplay) 
• [ ] Dragon Ball Z: The Tree of Might (Screenplay) 
• [ ] Dragon Ball Z: Bardock - The Father of Goku (Screenplay) 
• [ ] Dragon Ball Z: Bardock - The Father of Goku (Series Composition) 

1991

• [ ] Dragon Ball Z: Cooler's Revenge (Screenplay) 

1992

• [ ] Dragon Ball Z: Super Android 13! (Screenplay) 
• [ ] Dragon Ball Z: The Return of Cooler (Writer) 

1993

• [ ] Dragon Ball Z: Bojack Unbound (Writer) 
• [ ] Dragon Ball Z: Broly - The Legendary Super Saiyan (Screenplay) 
• [ ] Dragon Ball Z: Broly - The Legendary Super Saiyan (Writer) 
• [ ] Dragon Ball Z Side Story: Plan to Eradicate the Saiyans (Screenplay) 

1994

• [ ] Dragon Ball Z: Bio-Broly (Writer) 
• [ ] Go! Go! Ackman (Screenplay) 
• [ ] Dragon Ball Z: Broly - Second Coming (Screenplay) 
• [ ] Dr. Slump and Arale-chan: Hoyoyo!! Follow the Rescued Shark... (Scenario Writer) 

1995

• [ ] Dragon Ball Z: Fusion Reborn (Screenplay) 
• [ ] Dragon Ball Z: Wrath of the Dragon (Writer) 

1997

• [ ] Saving Soldier Cashman (Writer) 

2008

• [ ] Dragon Ball: Yo! Son Goku and His Friends Return!! (Writer) 

2009

• [ ] Kikansha Yaemon (Screenplay) 

2010

• [ ] Dragon Ball Z: Plan to Eradicate the Super Saiyans (Writer) 

2013

• [ ] Dream 9 Toriko x One Piece x Dragon Ball Z Super Collaboration Special!! (Writer) 

2024

• [ ] Dragon Ball Z Kai (Screenplay) 

1997

• [ ] Hell Teacher Nube: At 0 a.m. Nube is Dead!! (Script) 
• [ ] Dragon Ball GT: A Hero's Legacy (Script) 

2002

• [ ] Invasion: Anime (Self)