Dentokan Aiki-Jutsu is a Japanese martial tradition that is directly descended from the Daito –ryu Aikijujutsu of Takeda Sokaku, Dai Sensei through Hakko-ryu Jujutsu and Kokodo Ryu Jujutsu. Dentokan Aiki-Jujutsu was founded in Japan by Col. Roy J. Hobbs, Kaicho in 1997, with the blessings of his teacher, Irie Yasuhiro, Shihan.
The Dentokan employs a very structured principle-based training method that shares many similarities to the transmission of the older koryu(old tradition) jujutsu from which it is descended. The syllabus closely follows that of the original Hakko-ryu and Kokodo –ryu, retaining the waza catalogues: Shodan-gi, Nidan-gi, Sandan-gi, Yondan-gi, Shihan-gi, Kaiden –gi, and Sandaikichu-gi.
Training focuses on the waza within each specific set, followed by henka waza(variations of the formal waza). Henka variations deal with attacks such as strikes, kicks or grabs that one may encounter in a self protection situation but may not be included in the formal waza of a given set. Henka waza are studied in order to increase knowledge , skill and to explore the gensoku(principles contained within each waza). Through the understanding of Gensoku, one is able to develop practical Goshin Oyo(self – defense applications).
While an effective life- protection art, Dentokan Jujutsu also emphasizes a humanitarian approach to self-defense, following Okuyama Sensei’s teachings of ”no challenge, no resistance, no injury,” giving it a moral and philosophical foundation. The techiniques of Jujutsu while extremely efficient and frequently painful, are designed to quickly neutralize an attack while causing as little lasting damage as possible. These skills amplified by the understanding of the previously mentioned hekan, gensoku, and oyo, make possible a graduated response to any attack. One’s response can vary from a simple pin or restraint to all out counter attack, thus not only making an appropriate reply to any attack possible, but applicable in modern society.
Hobbs Sensei began training in Hakko -ryu Jujutsu in 1965, receiving the title of Shihan in 1984 directly from Okuyama Ryuho(Yoshiji), Shodai Soke and Founder of Hakko-ryu. Hobbs Sensei later received Menkyo Kaiden, complete transmission , in Kokodo –ryu, a branch of Hakko-ryu, in 1997 from Irie Sensei, one of the senior -most students of Okuyama, Shodai Soke. The Ryushinkan Dojo is proud to offer the ongoing study of Dentokan Aiki-jujutsu.
Jujutsu Dojo, Karate School, Samurai Sword Fighting Classes, and Self Defense Training, in Tucson Arizona