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:
Apr. 12, 2011
Filed:
Jul. 31, 2006
Naveen Chopra, Oakville, CA;
Man-chung Tam, Mississauga, CA;
Gaetano J. Lavigne, Oakville, CA;
Peter M. Kazmaier, Mississauga, CA;
Naveen Chopra, Oakville, CA;
Man-Chung Tam, Mississauga, CA;
Gaetano J. Lavigne, Oakville, CA;
Peter M. Kazmaier, Mississauga, CA;
Xerox Corporation, Norwalk, CT (US);
Abstract
A method and an apparatus for measuring reflectivity, charge and/or particle mobility of electrophoretic display mediums and particles are described. The apparatus for evaluating characteristics of an electrophoretic display medium, comprising a cell for containing the electrophoretic display medium, located between conductive substrates, a voltage application unit associated with the cell, an electrometer to measure transient current, and a densitometer to measure reflectance.