Carrier, electrophotographic developer and production method of carrier
US11029618B2 · kind B2 · utility
0Cited by
2References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 9, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Aug 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1138
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided a carrier including a magnetic core material having a surface coated with a surfactant-containing resin mixture of an elemental fluorine-containing resin and a polyimide resin. The carrier has an elution amount of an eluted material into water in an elution test ranging from 180 ppm to 3,500 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.