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:
Feb. 21, 2012
Filed:
Aug. 31, 2009
Tony S Cruz-uribe, Corvallis, OR (US);
Kurt Ulmer, Vancouver, WA (US);
Adel Jilani, Corvallis, OR (US);
Haggai Karlinski, Ramat Chen, IL;
Peter Mardilovich, Corvallis, OR (US);
Tony S Cruz-Uribe, Corvallis, OR (US);
Kurt Ulmer, Vancouver, WA (US);
Adel Jilani, Corvallis, OR (US);
Haggai Karlinski, Ramat Chen, IL;
Peter Mardilovich, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A piezoelectric printhead and related methods provide a first metallic electrode and a second metallic electrode deposited over a top surface and a bottom surface, respectively, of a piezoceramic plate. The second electrode is segmented into a plurality of electrode segments. A diaphragm is positioned over a plurality of pressure chambers, where the diaphragm includes a conductor positioned over each chamber. The piezoceramic plate is attached to the diaphragm such that each conductor on the diaphragm faces multiple electrode segments.