In October , 2004 David Somers was given permission to set up a study group by his teacher , Nakamoto Masahiro Sensei . The Ura Niwa Dojo serves as the headquarters of The Okinawa Dento Kobudo Hozon Kai-Beikoku Kenkyukai . The Kenkyukai was established , to preserve the teaching's of his in teacher Nakamoto Masahiro Sensei , as recieved from Taira Shinken Sensei , The Father of Modern Kobudo . If you are interested in training , seminars , membership in The Okinawa Dento Kobudo Hozon Kai , we can assist you in doing so . Please contact David , for further details .