E Ink Corporation is a privately held manufacturer of electrophoretic displays (EPDs), a kind of electronic paper. E Ink is located in Billerica, Massachusetts, and was co-founded in 1997 by undergraduates J.D. Albert & Barrett Comiskey, Joseph Jacobson (professor in the MIT Media Lab), Jerome Rubin (LexisNexis co-founder) and Russ Wilcox. Two years later, E Ink partnered with Philips to develop and market the technology. Jacobson and Comiskey are listed as inventors on the original patent filed in 1996. In 2005, Philips sold the electronic paper business as well as its related patents to Prime View International. E Ink has since partnered with various companies, including Sony, Motorola and Amazon, to allow for the development of products like the Sony Reader, MOTOFONE F3, Barnes & Noble Nook, Kindle and Kobo eReader, which all utilize E Ink displays. On June 1, 2009, E Ink Corporation announced an agreement to be purchased by one of its primary business partners, Prime View International (PVI), a Hsinchu, Taiwan-based manufacturer, for over $400 million. It is predicted that the acquisition will speed the development of color E Ink. PVI renamed itself E Ink Holdings Inc. after the purchase.