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. 19, 2010
Filed:
Feb. 09, 2009
Naveen Chopra, Oakville, CA;
Valerie M. Farrugia, Oakville, CA;
Jurgen Daniel, Mountain View, CA (US);
Raj D. Patel, Oakville, CA;
Man-chung Tam, Mississauga, CA;
Meng H. Lean, Santa Clara, CA (US);
Naveen Chopra, Oakville, CA;
Valerie M. Farrugia, Oakville, CA;
Jurgen Daniel, Mountain View, CA (US);
Raj D. Patel, Oakville, CA;
Man-Chung Tam, Mississauga, CA;
Meng H. Lean, Santa Clara, CA (US);
Abstract
Toner particles and a dry-powder electrophoretic display employing such particles are disclosed herein. The toner particles adapted for a dry-powder electrophoretic display comprise emulsion/aggregation particles having a negative charge. At least a portion of the toner particles include a surface coating, comprising a methacrylate polymer, disposed on the surface of the toner particles to impart a positive charge to a set of toner particles. The emulsion/aggregation toner particles have a particle size generally less than about 10 micrometers that allows for improved image quality as compared to conventional toners utilized in dry-powder electrophoretic displays.