One of his most notable roles was Souta Mogami/BoukenBlue in the Super Sentai series GoGo Sentai Boukenger.
Super Sentai | Kyōryū Sentai Zyuranger | Tokusou Sentai Dekaranger | Kamen Rider × Super Sentai: Super Hero Taisen | GoGo Sentai Boukenger | Sentai | Ninpuu Sentai Hurricaneger | Mahou Sentai Magiranger | Gosei Sentai Dairanger | Denji Sentai Megaranger | Dengeki Sentai Changeman | Unofficial Sentai Akibaranger | Seijuu Sentai Gingaman | Kaizoku Sentai Gokaiger the Movie: The Flying Ghost Ship | John Gogo | Gokaiger Goseiger Super Sentai 199 Hero Great Battle | Gogo Inflight Internet | Engine Sentai Go-onger | Denshi Sentai Denziman | Chōriki Sentai Ohranger | Chōjin Sentai Jetman |
Yamasaki has done television commercials for the Japanese convenience stores Circle K and Sunkus, and appears in GoGo Sentai Boukenger as Shizuka of the Wind, a member of Dark Shadow and a principal villainess.