Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Norikazu Ochiai0
Date of Patent
June 28, 2011
0Patent Application Number
123263800
Date Filed
December 2, 2008
0Patent Primary Examiner
Patent abstract
A developing roller includes a cylindrical sleeve that holds developer on a peripheral surface thereof, and a magnet roller being provided in the sleeve and having a plurality of magnetic poles. The sleeve includes a plurality of micro-recesses formed on the peripheral surface thereof, and the plurality of micro-recesses are arranged dispersedly in the axial direction and the circumferential direction of the sleeve. The densities of the micro-recesses in both end portions of the sleeve are larger than the density of the micro-recesses in a central portion of the sleeve.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
