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. 15, 2011
Filed:
Jun. 08, 2005
Applicants:
Koji Takagi, Kanagawa, JP;
Shuyou Akama, Saitama, JP;
Inventors:
Koji Takagi, Kanagawa, JP;
Shuyou Akama, Saitama, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A developing roller includes an ultraviolet-curing type resin layer and using a carbon-based electrically conducting agent for giving an electrical conductivity to the resin layer, as well as an imaging apparatus using the same. The developing rollerincludes a shaft memberof a metal pipe and a resin layer. The resin layeris a resin having fine particles dispersed therein, wherein the ratio a/b of average particle size of fine particles a to total thickness of resin layers b is greater than 2.0 and less than or equal to 5.0.