In 1971 Kamen Rider aired on Japanese TV, a show about a super hero who fought a terrorist organization. Kamen Rider is one of Japan's longest running franchises and a cultural icon. It falls under the genre of Tokusatsu, basically a genre of Japanese media that uses mostly practical effects, such as Godzilla, the most well known of the genre I would say. There are other Tokusatsu shows such as Super Sentai, Ultraman, Metal Heroes, Space Sheriff and so on.
Following in Kamen Riders footsteps soon came Super Sentai. Seen as a little brother to Kamen Rider, Super Sentai usually focuses more on teams than individuals, and carries a more light hearted tone. Eventually, Saban got the rights to Super Sentai, and filmed a dumb American TV show, but used the costumes and props from Super Sentai, and used fight scenes from Super Sentai as stock footage.
So no, you uncultured swine, Kamen Rider is technically in the same genre as Power Rangers, but to compare them is foolish. If you value your survival, next time it would do you well to not compare a legend to your bastardization of it's younger siblings.