I would love to read a more in depth take on why the Dai Nippon Butoku kai set aside a "classification" for demonstrating "the way of aiki" in 1942. We know Ueshiba liked the name and kept it for his current Aikibudo art and "Aikido" as a name, was born. But I am interested in whether they were considering it as a classification for Ueshiba only, or was it in recognition that the aiki arts were themselves a different category. They obviously knew he was a Takeda man. As has been suggested in the past, I wonder if they were making a broader distinction, instead of a specific example.
In January of 1942, Morihei Ueshiba appointed Minoru Hirai as the Director of General Affairs for the Kobukan dojo. In October of 1942, Hirai Sensei was sent as a representative to the Dai Nihon Butokukai (The Greater Japan Virtues Society) where he played a major role in establishing the name of Ueshiba's art, changing it from aikibudo to aikido.
In 1945, Minoru Hirai was awarded the rank of Hanshi (master) from the Dai Nihon Butokukai and in October of that same year established the Korindo dojo in Shizuoka. In September of 1953 he established the Korindo dojo in Tokyo and in January of 1954 established the Nihon Korinkai organization.
Note: After rejecting the proposed name of aikibudo, the Dai Nihon Butokukai established a new section to include yawara and generically labeled this new category as "aikido." The name aikido, although a category established within the Dai Nihon Butokukai referring to all jujutsu based systems, was used by Ueshiba to refer to his modern art.
The above series of events appears to be a point of contention between the Nihon Korinkai and the Aikikai Foundation. Although Minoru Hirai Sensei served as the Director of General Affairs for the Kobukan dojo and was instrumental in the name change of Ueshiba's art, he was a member of the Dai Nihon Butokukai prior to the addition of the new yawara section referred to as aikido. There appears to be a disagreement regarding the course of events and the Nihon Korinkai rejects the claim that Hirai was "sent" as a representative by Ueshiba.
Today, the name aikido is generically used in reference to the art created by Morihei Ueshiba. But according to the Nihon Korinkai, aikido was actually founded by Minoru Hirai and little stress, if any, is emphasized regarding the fact that Minoru Hirai studied under Morihei Ueshiba.
Excerpted from an interview with John Goss at the following url:
In other words, as far as the Butokai was concerned, "aikido" is less a "''classification' for demonstrating 'the way of aiki'" than it is a mutually agreeable label for a bureaucratic section that was developed so that the aikibudo and jujutsu guys wouldn't be under the control of the judo section of the Butokukai. No specific example, no broad distinction. No technical significance whatsoever.beyond the sociological recogniion that the aikibudo people were a bunch of bitchy little Heathers who couldn't play nicely with others, or each other, so it was best to give them their own little padded room.
Any claim broader than that isn't much more than grandiose wish-fulfillment and retrospective projection, something disgruntled humans looking to a prior golden age from the perspective of an oh-so unsatisfactory contemporary world have been doing for millenia. It's not a bug, it's a feature.