After Japanese judoka from Waseda University in Tokyo visited England in the 1920s and publicly demonstrated several counter-techniques developed at their home University, the exercises were henceforth in Britain (and later in France and other parts of Europe) represented as a formalized kata and practiced and taught that way by Kawaishi Mikinosuke, Koizumi Gunji, Ōtani Masutarō, and Tani Yukio.
After Japanese judoka from Waseda University in Tokyo visited England in the 1920s and publicly demonstrated their counter-techniques, which were developed at their home institution, these exercises were subsequently formalized into a standardized martial art form, known as kata, and practiced and taught by Kawaishi Mikinosuke, Koizumi Gunji, Ōtani Masutarō, and Tani Yukio in Britain (and later in France and other parts of Europe).