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:
May. 05, 2015
Filed:
Feb. 01, 2012
Applicants:
Akihide Oosaku, Yokohama, JP;
Shogo Imai, Yokohama, JP;
Yusuke Fujisawa, Yokohama, JP;
Inventors:
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 13/00 (2006.01); C09D 175/16 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0818 (2013.01); F16C 13/00 (2013.01); F16C 2208/80 (2013.01); G03G 15/0808 (2013.01);
Abstract
Provided is a developing roller in which printing quality, in particular, one-dot level fine line printing quality is improved by securing a high resistance value and high surface potential on the surface layer. The elastic roller comprises successively on the outer periphery of a shaftan elastic layer, an intermediate layer, and a surface layer. The surface layercontains a urethane (meth)acrylate oligomer obtained by allowing polybutadiene polyol or hydrogenated polybutadiene polyol, polyisocyanate, and (meth)acrylate having a hydroxyl group to react.