Mojang Specifications
2003–2011
Logo with the text "Mojang Specifications". Used until February 22, 2011. Mojang was founded in 2003 but didn't make any games until 2006
Mojang
2011–2013
This logo was last used on Minecraft release 1.7.3. It was also last used on Minecraft: Xbox 360 edition and Minecraft: PlayStation 3 Edition until TU14.
This logo still is a secondary logo and its seen on labels of Minecraft toys.
2013–present
In 2013, the logo was slightly modified. This new logo debuted on Minecraft version 1.7.4 and Minecraft Pocket Edition or PE 0.9.1 alpha. This logo also made it's debut on Minecraft: Xbox 360 Edition and Minecraft PlayStation 3 edition in TU14, but it looks 8-bit.
In 2014, Mojang was acquired by Microsoft. Their logo comes in many colors, including green, red and blue.