History
KoKoDo Ju Jutsu originates from a line of martial arts that dates back many centuries into feudal Japan.
Daito Ryu
Daito Ryu developed through the martial arts of the Samurai of the Minamoto clan at the first turn of the millenium. General Yoshimitsu Minamoto (1045-1127) developed the martial art named Daito Ryu based on his experiences on the battlefield and through studies of the human body.
Yoshimitsu's son, Minamoto no Yoshikiyo, took the surname "Takeda" and is also known as Takeda Yoshikiyo, and the techniques Yoshimitsu discovered would be secretly passed down within the Takeda clan until the late 19th century, when Takeda Sokaku (Daitō-ryū) and Oba Ichio (Takeda-ryū) have started to teach them to the public. He is the ancestor of the Takeda clan.
Takeda Sokaku (1859-1943) was teaching famous martial artists such as Morihei Ueshiba - the founder of Aikido or Choi Yong Sool - who studied in Japan and later developed Hapkido in Korea. Another student was Ryuho Okuyama - the founder of Hakko Ryu JuJutsu.
Daito Ryu
Daito Ryu developed through the martial arts of the Samurai of the Minamoto clan at the first turn of the millenium. General Yoshimitsu Minamoto (1045-1127) developed the martial art named Daito Ryu based on his experiences on the battlefield and through studies of the human body.
Yoshimitsu's son, Minamoto no Yoshikiyo, took the surname "Takeda" and is also known as Takeda Yoshikiyo, and the techniques Yoshimitsu discovered would be secretly passed down within the Takeda clan until the late 19th century, when Takeda Sokaku (Daitō-ryū) and Oba Ichio (Takeda-ryū) have started to teach them to the public. He is the ancestor of the Takeda clan.
Takeda Sokaku (1859-1943) was teaching famous martial artists such as Morihei Ueshiba - the founder of Aikido or Choi Yong Sool - who studied in Japan and later developed Hapkido in Korea. Another student was Ryuho Okuyama - the founder of Hakko Ryu JuJutsu.

Yoshimitsu Minamoto
Hakko Ryu
Ryuho Okuyama (1901-1987) is the founder of Hakko Ryu. He studied Daito Ryu and various weapon styles as well as asian medicine based on the meridial system. Among his teachers were the famous Takeda Sokaku, Matsuda Toshimi and Hirayama Ryozan.
Okuyama developed Hakko Ryu based on his knowlege from many years of studying asian medicine and martial arts. This made the martial art unique among other Aiki-Jutsu styles.
Ryuho Okuyama (1901-1987) is the founder of Hakko Ryu. He studied Daito Ryu and various weapon styles as well as asian medicine based on the meridial system. Among his teachers were the famous Takeda Sokaku, Matsuda Toshimi and Hirayama Ryozan.
Okuyama developed Hakko Ryu based on his knowlege from many years of studying asian medicine and martial arts. This made the martial art unique among other Aiki-Jutsu styles.

Ryuho Okuyama
KoKoDo JuJutsu
Yasuhiro Irie is the founder of KoKoDo Ju Jutsu. He started his training in martial arts under Soke Ryuho Okuyama, the founder of Hakko Ryu. Yasuhiro Irie was such an excellent student that in 1971 he became chief instructor at the Hakko Ryu So Hombu Dojo. In 1977 he received the highest rank in Hakko Ryu JuJutsu and the honour title of Jodai from Soke Ryuho Okuyama. Only the most technically proficient Shihan were awarded this title.
In 1993 Soke Irie left the organisation of Hakko Ryu and in 1995 he founded his own style KoKoDo Ju Jutsu. This martial art is also based on the profound knowlege about asian medicine. Soke Irie is a graduate of the Hanada college for oriental medicine and in 1988 he opened his own clinic where he works and teaches. Since 1995 the KoKoDo So Hombu Dojo is located next to the clinic.
Yasuhiro Irie is the founder of KoKoDo Ju Jutsu. He started his training in martial arts under Soke Ryuho Okuyama, the founder of Hakko Ryu. Yasuhiro Irie was such an excellent student that in 1971 he became chief instructor at the Hakko Ryu So Hombu Dojo. In 1977 he received the highest rank in Hakko Ryu JuJutsu and the honour title of Jodai from Soke Ryuho Okuyama. Only the most technically proficient Shihan were awarded this title.
In 1993 Soke Irie left the organisation of Hakko Ryu and in 1995 he founded his own style KoKoDo Ju Jutsu. This martial art is also based on the profound knowlege about asian medicine. Soke Irie is a graduate of the Hanada college for oriental medicine and in 1988 he opened his own clinic where he works and teaches. Since 1995 the KoKoDo So Hombu Dojo is located next to the clinic.

Soke Yasuhiro Irie










