Tetsuya Kokubo (小窪 哲也, Kokubo Tetsuya; born April 12, 1985) is a Japanese former professional baseball infielder. He played in Nippon Professional Baseball (NPB) for the Hiroshima Toyo Carp and Chiba Lotte Marines.
Source: “Tetsuya Kokubo”, English Wikipedia (CC BY-SA 4.0), excerpt