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:
Sep. 17, 2013
Filed:
Jul. 05, 2011
In-cheol Jeon, Yongin-si, KR;
Ki-jae DO, Suwon-si, KR;
Jong-hwa Joo, Suwon-si, KR;
Yong-hoon Lee, Yongin-si, KR;
Sang-jin Park, Hwaseong-si, KR;
In-cheol Jeon, Yongin-si, KR;
Ki-jae Do, Suwon-si, KR;
Jong-hwa Joo, Suwon-si, KR;
Yong-hoon Lee, Yongin-si, KR;
Sang-jin Park, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A charging apparatus including a charging tube which has an outer surface contacting a photoconductive medium and electrically charges a surface of the photoconductive medium, a shaft which is disposed in the charging tube and to which a charging voltage is applied, and a conductive member which is connected to the shaft and contacts an inner surface of the charging tube. A friction coefficient between the conductive member and the inner surface of the charging tube may be less than a friction coefficient between the photoconductive medium and the outer surface of the charging tube, so that a slip phenomenon of the charging tube is prevented.