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:
Jul. 02, 2013
Filed:
Sep. 14, 2009
Rie Ishii, Kanagawa, JP;
Jun Kawahara, Kanagawa, JP;
Nami Tokunaga, Kanagawa, JP;
Daisuke Nakayama, Kanagawa, JP;
Rie Ishii, Kanagawa, JP;
Jun Kawahara, Kanagawa, JP;
Nami Tokunaga, Kanagawa, JP;
Daisuke Nakayama, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A particle dispersion for display including: first particles for display including a colorant and a first polymer having a first charging group, the first particles for display being movable in response to an electric field; a first polymeric dispersant attached to the first particles for display; second particles for display including a colorant and a second polymer having a second charging group, the second particles for display being movable in response to an electric field; a second polymeric dispersant attached to the second particles for display; and a dispersing medium in which the first particles for display and the second particles for display are dispersed, the first polymeric dispersant and the second polymeric dispersant having different weight average molecular weights so that the first particles for display and the second particles for display start moving upon application of different voltages.