Sony (1958)
Alternative name: Tokyo Tsushin Kogyo, Totsuko
In 1946, Akio Morita and Masaru Ibuka founded Sony with the name Tokyo Tsushin Kogyo. Even though they later started to use casually the acronym "Totsuko", it was very difficult word to pronounce especially for Americans.
In 1958, they renamed it as Sony, a combination of the Latin word "sonus", meaning sounds, and "sonny boys", which is an American slang borrowed by Japanese people to refer to an "intelligent young person".