Masaru Ibuka started a company with his colleague Akio Morito in 1946
Surprisingly, it was created in March of 2004. It was created between 2 companies: Sony and Bertelsmann Music Group and goes by the name Sony BMG Music Entertainment.
Sony HiFD was created in 1998.
Sony Dash was created in 2010.
Sony Imagesoft was created in 1989.
Sony Watchman was created in 1982.
Sony Alpha was created in 2006.
Sony Aath was created in 2008.
Sony Life was created in 1979.
Sony Spin was created in 2011.
Sony Rolly was created in 2007.
Sony MIX was created in 2011.
Sony NEX was created in 2010.