Shinichi Ishihara (石原 慎一, Ishihara Shin'ichi; born May 26, 1960) is a Japanese singer, voice actor and actor from Yamanashi Prefecture. He is famous for singing the theme songs of Guyver, Kamen Rider Agito and Kyuukyuu Sentai GoGo-V, among other theme songs as well as the entire soundtrack to Juukou B-Fighter.
Source: “Shinichi Ishihara”, English Wikipedia (CC BY-SA 4.0), excerpt