Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
US10514623B2 · kind B2 · utility
0Cited by
2References
15Claims
0Family size
Assignee
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Key dates
| Filing date | May 10, 2018 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | May 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08755
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic charge image developing toner includes: a toner particle that contains a releasing agent, that has an exposed portion in which the releasing agent is exposed on a surface, and in which a proportion of the exposed portion occupying a surface, which is obtained by X-ray photoelectron spectroscopic analysis is 1 atom % or more and 20 atom % or less; and a strontium titanate particle that is externally added to the toner particle, that is doped with a metal element other than titanium and strontium, and in which an average primary particle diameter is 10 nm or more and 100 nm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.