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:
Aug. 08, 2006
Filed:
Dec. 31, 2003
Hsin Hsin Chou, Woodbury, MN (US);
William D. Edwards, New Richmond, WI (US);
Robert E. Brenner, New Richmond, WI (US);
Andrew J. Mcclaren, Blaine, MN (US);
Hsin Hsin Chou, Woodbury, MN (US);
William D. Edwards, New Richmond, WI (US);
Robert E. Brenner, New Richmond, WI (US);
Andrew J. McClaren, Blaine, MN (US);
Samsung Electronics Co., Ltd, Suwon, KR;
Abstract
A method measures the conductivity (σ) of a liquid or paste electrophotographic toner by providing two parallel plane conductive plates with a uniform separation (d) between the plates to form a space between the plates; filling the space between the plates with liquid or paste electrophotographic toner; applying an alternating current voltage of at least 100V between the plates across the liquid or paste toner; measuring as data the current passing through an external component into the plates; adjusting the data to remove current contributions attributable to impurity ions; sending adjusted data to a processor; and determining the conductivity from the adjusted data.