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:
Mar. 26, 2013
Filed:
Jul. 09, 2010
Applicants:
An-kee Lim, Yongin-si, KR;
Tae-hyun Kim, Hwaseong-si, KR;
Mi-na You, Seoul, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The disclosure provides a developing roller for an electrophotographic image forming apparatus, and a method of manufacturing the same. The developing roller includes a shaft member and a resilient member provided on the shaft member. The resilient member includes a conductive resilient layer in contact with the shaft member and a conductive resin layer defining the outer surface of the resilient member. The conductive resin layer includes a resin and a surface-treated metal oxide. The developing roller is capable of an increased amount of toner charging while stably maintaining optical density.