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. 12, 2013
Filed:
Sep. 29, 2009
Yoshihisa Mizumoto, Hyogo, JP;
Yoshihisa Mizumoto, Hyogo, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
The present invention provides a conductive roller having a toner transport part composed of a vulcanized rubber composition at least on an outermost layer thereof. The vulcanized rubber composition contains a rubber component (A), highly conductive carbon black (B) having a particle diameter not less than 18 nm and less than 80 nm, an inorganic filler (C) consisting of not less than one kind of a metal oxide selected from among a group of titanium oxide, alumina, and silica. A total of a content of the highly conductive carbon black (B) and a content of the inorganic filler (C) for 100 parts by mass of the rubber component (A) is not less than 10 parts by mass nor more than 60 parts by mass.