It is unclear when judo and karate uniforms became differentiated, but considering that a karate uniform was advertised in the first issue of "Monthly Karate" (1956), it would appear that the karate uniform was developed well after WWII, but there is also a possibility that it was produced before WWII.
柔道衣と空手衣がいつ分かれたかは明確ではないが、昭和31年（1956年）の『月刊空手道』創刊号に、すでに空手衣の広告が掲載されているので、戦後しばらくしてか、あるいはすでに戦前から空手衣は誕生していた可能性がある。