Kyokushinkai, (key-yoke/shin) the style found by Masutatsu Oyama has enjoyed a growing popularity throughout the world. Sosai Oyama, a student of Goju-Ryu Master So Neichu, of Gogen Yamaguchi, and of Funakoshi, combined what he learned from these masters with his knowledge of the Korean fighting arts, and with certain Chinese techniques and strategies.
Sosai Masutatsu Oyama, one of the most famous karate masters in the world, popularized karate through spectacular tests of strength such as killing bulls bare handed and winning public challenges against professional wrestlers.
Kyokushinkai is the name of the style of karate which was founded by Sosai Mas Oyama. Kyoku meaning Ultimate. Shin meaning truth or reality. Kai meaning to meet, join or associate.