Toner
US10747132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2019 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/107
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner comprising a toner particle, and strontium titanate, wherein the strontium titanate has a specific number average particle diameter, the strontium titanate has a maximum peak (a) at a diffraction angle (2θ) of 32.00 deg to 32.40 deg in CuKα characteristic X-ray diffraction, the half width of the maximum peak (a) is 0.23 deg to 0.50 deg, an intensity (Ia) of the maximum peak (a) and a maximum peak intensity (Ix) in a range of a diffraction angle (2θ) of 24.00 deg to 28.00 deg satisfy a specific relationship, the content of strontium oxide and titanium oxide in the strontium titanate is at least 98.0% by mass, and a sum total Et of a rotational torque and a vertical load in powder flowability analysis of the toner is 100 mJ to 2000 mJ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.