Magnetic toner for electrostatic images and transfer copying
US4265993A · kind A · utility
11Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1979 |
| Grant date | May 5, 1981 |
| Priority date | — |
| Expiry date | Jun 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Magnetic toner employable as a developer for electrophotographic duplication system consisting of the steps of developing electrostatic latent image on a carrier, overlaying a copying sheet on said carrier of developed image, and transferring the developed image to said sheet, characterized by containing magnetic fine particles of a electric resistivity from 10.sup.9 .about.10.sup.16 .OMEGA..multidot.cm (at 4000 V/cm DC) and dielectric constant from 2.6.about.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.