Toner for electrophotography
US5248581A · kind A · utility
7Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Nov 18, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for electrophotography, which is obtained by attaching fine particles, each of which is formed by coating a core particles, e.g., metal oxide powders, ceramics, inorganic particles or resin particles, with a long-chain fatty acid metal salt to a surface of each of toner particles. The present toner gives an excellent image without causing any phenomenon of white spot within character, and the image formed is free from any fog and black speckle in an image background portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.