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. 14, 2015
Filed:
Mar. 12, 2013
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Se-young Yoon, Hwaseong-si, KR;
Sung-jin Park, Suwon-si, KR;
Hong-chul Shin, Suwon-si, KR;
Seung-sik Woo, Hwaseong-si, KR;
Hae-ree Joo, Anyang-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A toner to develop electrostatic latent images, which has surface characteristics that may simultaneously improve charge uniformity, charge stability, transferability, and cleaning ability. The toner to develop electrostatic latent images may include core particles comprising a binder resin, a colorant, and a releasing agent; and an external additive including silica particles and titanium dioxide particles, wherein the external additive is attached to external surfaces of the core particles, wherein an iron intensity [Fe], a silicon intensity [Si], and a titanium intensity [Ti] that are measured by X-ray fluorescence (XRF) satisfy both conditions, 0.004≦[Si]/[Fe]≦0.009 and 0.8≦[Ti]/[Fe]≦2.