Immediately after the war, due to the ban on martial arts imposed by occupying US forces, aikido was not being taught in Tokyo.
A number of students including Koichi Tohei and Gozo Shioda took it upon themselves to become active in disseminating aikido.
Some years later, Kisshomaru Ueshiba, the Founder's son, began to actively revive the Aikikai Headquarters in Tokyo.
[1] From the post-war period until the 1980s, numerous aikido organizations evolved in parallel to the main branch led by the Ueshiba family.
These schools, with some historical justification, suggest that the name aikido is not the exclusive domain of arts derived from the teachings of Morihei Ueshiba.