Patent 7735976 was granted and assigned to Samsung on June, 2010 by the United States Patent and Trademark Office.
An inkjet printhead that uses a non-aqueous ink. The inkjet printhead includes a flow channel plate having an ink channel, and a nozzle plate which is combined with the flow channel plate and has a plurality of nozzles through which the non-aqueous ink is ejected, wherein a non-wetting coating film is formed on inner walls of the ink channel and the nozzles.