Electrostatic charge image developing toner and electrostatic charge image developer
US10423087B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 30, 2018 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Apr 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09716
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic charge image developing toner includes: a toner particle and a strontium titanate particle that is externally added to the toner particle, in which an average primary particle diameter of the strontium titanate particle that is present on a surface of the toner particle is 30 nm or more and 100 nm or less, and average primary particle circularity is 0.82 or more and 0.94 or less, and in which circularity that becomes 84% of accumulation of the primary particle is greater than 0.92.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.