The Sosuishi-ryu JuJutsu Kai (S.J.J.K.) is the only association authorized by the Shitama family to award promotions in Sosuishi(tsu)-ryu Jujutsu. It was founded by the 15th Inheritor of Sosuishi-ryu, Master Shusaku (Shuzu) Shitama on July 5th, 1963 in Fukuoka, Japan. In fact, the 16th inheritor of Sosuishi-ryu Jujutsu, Master Manzo Shitama serves as the Director. In 2018, William Kinkel and Bill Williams both assumed the role of co-Directors of the Sosuishi-ryu Jujutsu Kai-USA (SJJK-USA).
The Headquarters of the SJJK-USA is the record center for complete and accurate files of all administrative matters pertaining to and concerning Sosuishi-ryu Jujutsu in the United States. The files contain the names, locations and districts of all Sosuishi-ryu Dojo, Branch and District representatives, members names, grading achievements, etc.
ALL MEMBERS receive a “Certificate of Membership” and ALL BLACK BELTS receive certificates of promotion from Master Shitama in Japan as well.
Although many claim to hold grades in Sosuishi-ryu very few actually do. The Sosuishi-ryu Jujutsu Kai prides itself in maintaining quality not quantity.
Anyone interested in Sosuishi-ryu Jujutsu as passed down from father to son since 1650 may contact the New York Seibukan, the Headquarters for the Sosuishi-ryu Jujutsu Kai-USA for the name(s) and location(s) of legitimate, recognized instructors.