Ippo Igarashi (五十嵐 一歩, Igarashi Ippo) is a sound designer in charge of creating and managing audio effects used in Koei's games.
Works with Koei
- Samurai Warriors 1~2
- Kessen III - sound editor
- Dynasty Warriors 5
- Romance of the Three Kingdoms XI
- Winning Post 7
- Bladestorm: The Hundred Years' War
- Dynasty Warriors: Gundam 2 - composer
- Hyrule Warriors
- Harukanaru Toki no Naka de 6
- Sangokushi 13
- Berserk Musou