Toner
US10852652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Aug 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0904
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner containing a toner particle, in which the toner particle contains a binder resin and a pigment, and As and Al satisfy a specific relation, in a case when the toner is divided into two groups i.e. a first group and a second group with an inertial classifier, the first group including a larger size of the toner particles, and the second group including a smaller size of the toner particles, and the number of the toner particles in the first group being substantially equal to the number of the toner particles in the second group. Each of As and Al is a change rate of a surface potential of a pellet type molded product obtained by molding each of the toner in the first group and the toner in the second group under specific conditions is observed using a surface potentiometer under a specific conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.