receiving the Mokuroku scroll in 1918 and the license of full transmission (Menkyo kaiden) in 1920 at the age of 23. Of the many students of Shiraishi there were three who became prominent in the aftermath of Shiraishi's death. Shimizu Takaji (1898–1978), Takayama Kiroku (1893–1938) and Otofuji Ichizo (1899–1998). In the early 1920s Jigorō Kanō, the founder of judo, witnessed a demonstration of SMR and made an invitation to Shiraishi come to Tokyo and teach SMR there. Due to his advanced age Shiraishi declined to come in person and sent his student Shimizu Takaji instead. Shimizu arrived in Tokyo in 1927. After a further demonstration of SMR-Jō in front of the Tokyo Police Force technical commission, a decision was made to incorporate elements of SMR-Jō for police-use. The new system was named keijo-jutsu and intended for use with the special police unit Tokubetsu Keisatsutai. Shimizu started training the new unit in 1931. Now a permanent Tokyo-resident, Shimizu opened up his own dojo, the Mumon (No Gate) Dojo. In 1929 Takayama Kiroku, with financial aid from the family of the late Shiraishi Hanjiro, opened a dojo in Fukuoka and was named Shihan with Shimizu named fuku-shihan or "assistant master". Shimizu by this time, however, was on his way to Tokyo in order to teach Jōdo. Takayama died in 1938 and Otofuji Ichizo took over as the new master of the dojo and of the Fukuoka-jō, a responsibility he held until his death in 1998. During the 1930s in Tokyo, Shimizu felt that the traditional way of teaching Jo was not suited for this new (and more numerous) generation of students. He realised that a better method of teaching Jo was required in order to properly teach ever increasing number of new students who had no previous experience of Martial Arts. He took inspiration from Jigoro Kanos new Judo organisation and training-methods in order to, among other things, develop the twelve basic techniques kihon which would make SMR more appealing and approachable to the beginner-student. These twelve basic techniques are still taught in most mainstream dojos today. In 1940 Shimizu became the head of the Dai Nihon Jōdokai (Greater Japan Jōdo Association) and he decided to rename the art from Jōjutsu to Jōdo in keeping with the trend of the time. With the end of World War II in 1945, many martial arts were banned by the new government for fear that