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:
Sep. 23, 2014
Filed:
Nov. 21, 2011
Witold Roman Wiszniewski, Balmain, AU;
David Mcleod Johnstone, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Witold Roman Wiszniewski, Balmain, AU;
David McLeod Johnstone, Balmain, AU;
Kia Silverbrook, Balmain, AU;
Memjet Technology Ltd., Dublin, IE;
Abstract
An inkjet printhead includes a bi-layered nozzle plate having a plurality of nozzle apertures. The bi-layered nozzle plate being includes a lower first nozzle plate formed from a first material and an upper second nozzle plate disposed on the first nozzle plate, the second nozzle plate being formed from a second material. The first and second materials are different from each other and are each independently selected from the group consisting of: silicon nitride, silicon oxide and silicon oxynitride.