Acting Chief Instructor: William Kinkel
Currently Dennis Fink sensei’s senior graded student, Bill Kinkel sensei started training in the martial arts in 1981 as a 14 year old boy initially in Isshin-ryu karate-do with Sensei Fink. A few years later he began training in Sosuishi-ryu jujutsu.
In 1991, Bill was one of seven of Fink sensei’s black belt students to join him in establishing the New York Seibukan dojo. Most of the New York Seibukan dojo’s carpentry and alterations back in 1991 were and still continue to be completed by Bill with the help of some students.
In March 2004, Sensei Kinkel along with 2 other students completed *Senbondori when the New York Seibukan hosted the first *Senbondori (test or challenge of 1000 points) outside of the Sekiryukan, Japan.
He currently holds the grades of 7th degree black belt (Shichidan), and the title of Kyoshi in Isshin-ryu Karate-do and also holds the grade of 5th degree belt (Gomokuroku) in Sosuishi-ryu jujutsu.
During Fink sensei’s absence, in addition to teaching classes and managing the day to day operations of the New York Seibukan dojo, Fink Sensei also designated Bill Kinkel as the Acting International Director of the Sosuishi-ryu Jujutsu Kai (SJJK)
Bill is a retired New York City Police Officer, and a certified USA Swimming level 2 Swim Coach.
Instructor: Bill Williams
Bill Williams Sensei began his training with Fink Sensei in 1981 in Isshin-ryu Karate, and Sosuishi-ryu Jujutsu. He currently holds the grades of 6th degree black belt (Rokudan), and the title of Renshi in Isshin-ryu Karate-do, and also holds the grade of 4th degree belt (Yonmokuroku) in Sosuishi-ryu jujutsu, and 1st degree black belt (Shodan) in Judo, certified by the USJA.
In 1994, Bill was asked to become a partner at the New York Seibukan dojo, where he continues to train, teach, and assist in the daily operations of the dojo.
In May of 2005, Bill successfully completed the *Senbondori, (test or challenge of 1000 points) that was overseen by the 16th Headmaster of Sosuishi-ryu Jujutsu, Shitama Manzo Sensei.
Bill is a retired NYPD Detective Sergeant, and certified FBI Defensive Tactics Instructor.
Assistant Instructor: Rondy Angoy
He currently holds the grades of 4th degree black belt (Yondan), and the title of Renshi in Isshin-ryu Karate-do and also holds the grade of 4th degree belt (Yonmokuroku) in Sosuishi-ryu jujutsu.
In March 2004, and May of 2005, Rondy successfully completed the *Senbondori, (test or challenge of 1000 points) that was overseen by the 16th Headmaster of Sosuishi-ryu Jujutsu, Shitama Manzo Sensei. Rondy is one of the very few students that has ever completed this grueling test grueling test of stamina, will power and spirit TWICE!
Assistant Instructor: Roberto Cambeiro
He currently holds the grade of 4th degree black belt (Yondan), and the title of Renshi in Isshin-ryu Karate-do, and also trains in Sosuishi-ryu jujutsu and is currently at the highest kyu level (Ikkyu) which is just below black belt.
Sosuishi-ryu’s 12th headmaster, Shingo-Munetsuga Shitama, first established this “thousand-point challenge” in 1868. A challenger must face a group of opponents called “yoseko” throwing down one another 1,000 times, a very strenuous task. Only black belts are permitted to attempt this test of sheer endurance.There is no concept of winning or losing in senbondori, the only thing that is important is to complete it. 354 people in Japan completed this grueling test of stamina, will power and spirit since it’s beginning; two were women. To this day only three percent of the students at the Sekiryukan have successfully completed senbondori. The New York Seibukan has conducted senbondori under the auspices of the Sekiryukan since 2004.