He developed a personal technique called "yama arashi", possibly related to the modern judo technique of the same name, though according to Tsunejiro Tomita it was lost after his death.
Desenvolveu unha técnica persoal a que chamou "yama arashi", posibelmente relacionada coa técnica de Judo moderna do mesmo nome, aínda que segundo Tsunejiro Tomita, o seu traballo perdeuse tras a súa morte.