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:
Aug. 30, 2011
Filed:
Jun. 29, 2005
Applicants:
Meizo Shirose, Hachioji, JP;
Satoshi Uchino, Hino, JP;
Inventors:
Meizo Shirose, Hachioji, JP;
Satoshi Uchino, Hino, JP;
Assignee:
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A developing roller that can form a toner image with high quality includes: a supporting shaft, and at least one resin layer formed on a peripheral face of the supporting shaft, the resin layer containing carbon black in which a number average Feret's diameter is in a range from 5 to 300 nm and primary particles account for 5% or more on a number basis, and the carbon black being dispersed in a base resin material thereof.