Charging member, process cartridge, and electrophotographic apparatus
US7693457B2 · kind B2 · utility
38Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2005 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Mar 14, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0233
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging member has a surface layer. The surface layer contains a polysiloxane having a first unit, a second unit and a third unit each of which is represented by a specific formula. The ratio of the sum of the mole numbers of the first and second units to the sum of the mole numbers of the first to third units is in a specific range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.