The founder of Meifu-Shinkage ryu, Dr. Chikatoshi Someya studied the skills of Katori-Shinto ryu and was particularly adept at the use of shuriken.

He made various improvements on the shuriken-jutsu of Katori-Shinto ryu and established Meifu‐Shinkage ryu. He made some modifications and formed his own style in the 1970's, thus giving the art its current name. He was also a shuriken researcher, having investigated a number of techniques and types of blades used in various ryu. He did the research so that Shuriken might fly long distance with stability. He thought that the length of Shuriken was related to a steady flight. Then, Someya sensei prepared a lot of Shuriken of different lengths. He threw those Shuriken, and recorded the result of their flight Finally, he understood shuriken of a certain length are especially effective. The research satisfied him, and he decided to establish a new school. These were the circumstances under which the Meifu‐Shinkage ryu was established Someya Sensei passed away in June 1999, and was succeeded by Yasuyuki Otsuka, who trained under Someya Sensei since 1985, and now runs a dojo with about 30 students in Japan.

Chikatoshi Someya sensei