Yagyū Shinkage-ryū
Yagyū Shinkage-ryū was also taught in the United States from 1981-1988 by Yagyu Hideki. The authority to teach the art was given to Hideki's student-turned-adopted-son who runs a school near Kobe, Japan, and to his two top American students—one of whom (as of 2005) resides in China where he teaches the art, and the other in the United States who, as of 2012, is in training to return to teaching. Only Hideki's son and two top American students were issued permission to teach the art to anyone else.