Yesterday Tadashi Nakamura demonstrated martial arts technique at the Sakura Matsuri festival at the Brooklyn Botanic Garden. He is the founder and chairman of the World Seido Karate Organization. A world-renowned karateka, Nakamura is a ninth dan (degree) black belt with over fifty years of experience in practicing and teaching in the martial arts. An expert in the use of oriental weapons, Nakamura has given numerous martial arts lectures and demonstrations in many countries around the world.