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:
Jan. 26, 2016
Filed:
Jul. 31, 2012
Applicants:
Quang P Lam, Union City, CA (US);
Doris Chun, Santa Clara, CA (US);
Hou T. NG, Campbell, CA (US);
Inventors:
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/10 (2006.01); G03G 15/08 (2006.01); G01N 27/02 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/105 (2013.01); G01N 27/02 (2013.01); G03G 15/0851 (2013.01); G03G 21/0011 (2013.01); B41P 2200/21 (2013.01);
Abstract
Techniques to determine concentration parameters of conductive liquid electrophoretic (LEP) inks are illustrated herein. In an example, a layer of conductive LEP ink is formed on a developer roller using electrostatic forces acting on the conductive LEP ink. A current is generated in response to a voltage between a measurement electrode and a developer roller. The current flows through the conductive LEP ink layer.