| The ISSHINKAI was an informal group on Okinawa who were students of Isshinryu Karate founder, Shimabuku Tatsuo. They would get together to discuss the "old days" and their revered teacher. Today, the ISSHINKAI is a Karate & Kobudo Association that strives to preserve the original teachings of Shimabuku Tatsuo. The ISSHINKAI'S Chief Instructor is Arcenio Advincula. Sensei Advincula has more time than any other American training directly with Shimabuku Tatsuo Sensei. |
| 2003 ISSHINKAI ENBUKAI Okinawa Budo Kai Participants: Sensei Jeff Perkins, Sensei Carol Womack, Mr. Aaron Ruber |
| 2004 isshinkai enbukai Okinawa Budo Kai Dojo Participants: Sensei Jeff Perkins, Sensei Carol Womack, Sensei Bill Ruber, Mr. Dick Gassen & Mr. Brian Gassen |
| 2005 Isshin/Tomo Enbukai Okinawa Budo Kai Dojo Participants Sensei Jeff Perkins, Sensei Carol Womack Mr. Dick, Brian & Kevin Gassen |
| IsshinKai Karate & Kobudo Association |
| 2007 Isshinkai Enbukai |
| 2006 Isshinkai Enbukai |
| Jeff Perkins & Carol Womack demonstrate Choun No Kon Kata for Isshinryu 1st Generation Robert Safreed, A.J. Advincula & John Bartusevics |