Judosystems

Kodokan

Kawaishi

Koizumi

Grandmaster

Jigorō Kanō

Mikonosuke Kawaishi

Gunji Koizumi

Ichiro Abe

Kyūzō Mifune

Tsunejiro Tomita

Shōzō Nakano

Hajime Isogai

Hajime Isogai (磯貝一)