Toshiharu Ai (阿井利治, Ai Toshiharu; born June 6, 1935 in Shizuoka Prefecture, Japan) is a former Japanese Nippon Professional Baseball catcher. He played for the Kokutetsu Swallows from 1954 to 1960.
Source: “Toshiharu Ai”, English Wikipedia (CC BY-SA 4.0), excerpt