While I don’t remember I actually saw them as a kid because I was too young, “Ultra Q” should have got a lot of coverage in the magazine “Bokura” and “Bokura Magazine” that used to be published from Kodansha as the publisher still releases the famous manga magazine “Weekly Shonen Magazine.”
The word bokura is used by a male speaker to refer to himself and the rest of people (male or female), and, given the magazine was intended for boys, it might be translated as “We Boys” or something. In addition, the word shonen signifies a boy/boys.
“Bokura” was a monthly magazine that started being published in 1954 and “Weekly Bokura Magazine” took over in 1969 as the “younger brother magazine” of the “Weekly Shonen Magazine” launched in 1959 even though the Bokura Magazine ceased publication allegedly in the form of being absorbed or combined into the “Weekly Shonen Magazine” in 1971.
Although it is said a larger portion of such a manga magazine was taken up by reading materials instead of manga than today, it is true that these manga magazines turned out many famous manga artists and products as they laid down the basis for the current rise of world-wide manga popularity.
“Kamen Rider” authored by Shotaro Ishinomori (Ishimori back then) was originally one of the manga products that appeared in the “Bokura Magazine” serialized in parallel with the TV tokusatsu show aired around the same time.