Shirō Hattori (服部四郎, Hattori Shirō; May 29, 1908 – January 29, 1995) was a Japanese academic and writer. Born in Kameyama, Mie, Hattori was a linguist known particularly for his work on premodern Japanese and Japonic languages and the Ainu language. He was a professor at the University of Tokyo.
Source: “Shirō Hattori”, English Wikipedia (CC BY-SA 4.0), excerpt