Kamen Rider (仮面ライダー Kamen Raidā?, Masked Rider), is a weekly sci-fi story created by Japanese mangaka Shotaro Ishinomori. It debuted as a tokusatsu television series on April 3, 1971 and ran until February 10, 1973, airing on the Mainichi Broadcasting System and NET TV (now TV Asahi). A manga adaptation was also featured in Shōnen Magazine around the same period. The series has spawned many sequels and evolved into a franchise. The cultural impact of the series in Japan resulted in Akimasa Nakamura naming two minor planets in honor of the series: 12408 Fujioka, after actor Hiroshi Fujioka, known for his portrayal of Takeshi Hongo/Kamen Rider 1, and 12796 Kamenrider, after the series itself.

(From wikipedia)

Shōwa Kamen Riders
1 • 2 • V3 • Riderman • X • Amazon • Stronger • Skyrider • Super-1 • ZX • BLACK • RX • Shin • ZO • J

Heisei Kamen Riders
Kuuga • Agito • Ryuki • 555 • Blade • Hibiki • Kabuto • Den-O • Kiva • Decade • W • OOO • Fourze