E Ink (electrophoretic ink) is a specific proprietary type of electronic paper manufactured by E Ink Corporation, founded in 1997 based on research started at the MIT Media Lab. Joseph Jacobson and Barrett Comiskey are listed as inventors on the original patent filed in 1996.[1]
It is currently available commercially in grayscale and color[2] and is commonly used in mobile devices such as e-readers and, to a lesser extent, mobile phones and watches.