Sony

==Tokyo Tsushin Kogyo==
===1946–1957===
==Sony==
===1955–1957===
In 1955, the name Sony was used as a brand for transistor radios by TTK.
===1957–1961===
In 1957, the Sony brand name was chosen to be the corporate name for the company.
===1961–1962===
===1962–1969===
===1969–1973===
===1973–present===
The wordmark was modified in 1973; it has remained unchanged ever since. This is true for many other Japanese electronics companies, like Panasonic, Nintendo and Casio, all of which introduced their current logos in the 1970s.
==External links==
Category:Sony
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Category:Manufacturers in Japan