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:
Oct. 28, 2014
Filed:
Apr. 28, 2011
Applicants:
Peter Mardilovich, Corvallis, OR (US);
Jack Lavier, Corvallis, OR (US);
Inventors:
Peter Mardilovich, Corvallis, OR (US);
Jack Lavier, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04581 (2013.01); B41J 2/04508 (2013.01); B41J 2/04573 (2013.01); B41J 2/04588 (2013.01);
Abstract
In an embodiment, a method of compensating for capacitance change in a piezoelectric element of a fluid ejection device includes sensing a current driving a piezoelectric element, determining from the current that capacitance of the piezoelectric element has changed, and altering a rise time of the current driving the piezoelectric element to compensate for the changed capacitance.
Quick Actions:
Mardilovich, Peter. (2014). Compensating for capacitance changes in piezoelectric printhead elements (U.S. Patent No. 8870325). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8870325
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile