Patent · US Active

Toner for electrostatic image development, electrostatic image developer, and toner cartridge

US11181841B2 · kind B2 · utility

0Cited by
3References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 7, 2020
Grant dateNov 23, 2021
Priority date
Expiry dateApr 7, 2040

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G21/18
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A toner for electrostatic image development includes: toner particles; Si-doped strontium titanate particles; and silica particles. The particle diameter D of at least one peak in a number-based particle size distribution of primary particles of the silica particles is larger than the number-based median diameter D50 of primary particles of the Si-doped strontium titanate particles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.