Toner for developing electrostatic image, process for producing toner for developing electrostatic image, developer for developing electrostatic image, and process for forming image
US6838220B2 · kind B2 · utility
4Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jun 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0827
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for developing an electrostatic image, a process for producing the same, a developer for developing an electrostatic image and a process for forming an image are disclosed. The toner contains a resin, a colorant and a releasing agent, in which the toner has protrusions having a height of about from 0.05 to 2 μm, a part of the protrusions encompasses the releasing agent, and a proportion of elements derived from the releasing agent is about 10% by atom or less based on elements on a surface of the toner that is quantitatively determined by X-ray photoelectron spectroscopy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.