Renshi Joyce Stech is a private student of Hanshi Takaya Yabiku.
- She holds a 5th dan in Okinawan Koshin-Ryu
- She holds a 6th dan in Okinawan Kohokan Kyokai Karate/Kobudo She holds a 4th dan in Okinawa Shorin-Ryu Matsumura Orthodox Karate
Joyce is a 5th degree black belt (Koshin-Ryu), an Okinawan Traditional system. Ms. Stech received her Shihan (Master/Teacher) license in Okinawa and is the only female in the United States with the privilege of teaching the Koshin-Ryu system. Her dojo is located in Summerville, SC and has been in operation since 1992.
Renshi Joyce Stech, 6th dan