. . "Doi, Toshitada"@en . "Engineer" . . . "1943Z"^^ . "Toshitada Doi"@en . "1943-02-02Z"^^ . "Toshitada Doi (\u571F\u4E95 \u5229\u5FE0, Doi Toshitada, born February 2, 1943) is a Japanese electrical engineer, who played a significant role in the digital audio revolution. He received a degree in electrical engineering from the Tokyo Institute of Technology in 1964, and a PhD from Tohoku University in 1972.He joined Sony Japan in 1964 and started the first digital audio project within Sony."@en . .