Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
US11392052B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Aug 4, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Aug 4, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1814
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic image developing toner includes a toner particle, an external additive A, and an external additive B. At least the external additive A is present on the surface of the toner particles. At least the external additive B is present on the external additive A. The number of peaks of the external additive B on the external additive A is 5 or more and 100 or less per 30 μm peripheral length of the toner particle, the peaks having a height from the surface of the toner particle of 80 nm or more and 250 nm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.