The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2014
Filed:
Oct. 18, 2010
Simon Fielder, Balmain, AU;
Lewis Matich, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Gregory John Mcavoy, Dublin, IE;
Rónán Pádraig Seán O'reilly, Dublin, IE;
Emma Rose Kerr, Dublin, IE;
Simon Fielder, Balmain, AU;
Lewis Matich, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Gregory John McAvoy, Dublin, IE;
Rónán Pádraig Seán O'Reilly, Dublin, IE;
Emma Rose Kerr, Dublin, IE;
Memjet Technology Ltd., Dublin, IE;
Abstract
A method of providing a printhead assembly having a hydrophilic ink pathway and a hydrophobic ink ejection face. The method includes the steps of: providing a printhead assembly comprising a printhead attached to an ink supply manifold, the printhead comprising a nozzle plate having a hydrophobic coating and a protective metal film disposed on the hydrophobic coating; treating surfaces of an ink pathway in the printhead assembly with a solution comprising an alkoxylated polyethyleneimine; drying the surfaces; and removing the protective metal film so as to reveal the hydrophobic coating.