Itagaki mastered the battojutsu (the technique of drawing a sword) of Muso Jikiden Eishin Ryu school Tanimura Sect that had been transmitted in his hometown with Masamichi OE, who later became the seventeenth headmaster.
抜刀術は故郷に伝わる無双直伝英信流谷村派を、後に第17代となる大江正路と共に修めていた。