Shibaura Seisaku-sho (Shibaura Electronic Works)
1893–1904
1904–1919
1919–1925
Tokyo Denki (Tokyo Electronics Company)
1925–1939
Tokyo Shibaura Denki
1939–1943
1943–1946
1946–1950
Toshiba
1950–1984
In 1950, Tokyo Shibaura Denki was renamed to Toshiba.