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. 11, 2014
Filed:
Jul. 27, 2012
Applicants:
Kenichi Kuroda, Kobe, JP;
Akihiko Kawatani, Kobe, JP;
Masakazu Tanaka, Kobe, JP;
Yoshihisa Mizumoto, Kobe, JP;
Inventors:
Kenichi Kuroda, Kobe, JP;
Akihiko Kawatani, Kobe, JP;
Masakazu Tanaka, Kobe, JP;
Yoshihisa Mizumoto, Kobe, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A developing roller is provided, which is particularly used in an image forming apparatus of a highly durable design and is free from toner leakage even after formation of a predetermined number of images. Opposite end regions () of an outer peripheral surface () of a roller body () of the developing roller () to be respectively kept in sliding contact with seal members each have a friction coefficient μ of not greater than 0.15.