Developing roller, process cartridge, and electrophotographic apparatus
US8600273B2 · kind B2 · utility
32Cited by
14References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Apr 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49544
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing roller including a mandrel, an elastic layer provided on the mandrel and containing a cured material of an addition curable-type dimethyl silicone rubber, and a surface layer containing a urethane resin that covers the circumferential surface of the elastic layer. The urethane resin has a structure represented by the following formula (1), and one or both structures selected from a structure represented by the following formula (2) and a structure represented by the following formula (3) between two adjacent urethane linkages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.