Negatively chargeable toner for developing electrostatic latent image
US5776647A · kind A · utility
9Cited by
3References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Oct 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09783
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The negatively chargeable toner of the present invention includes a boron compound expressed by the chemical structural formula (A): ##STR1## wherein R.sub.1 and R.sub.3 respectively represent substituted or non-substituted aryl group, R.sub.2 and R.sub.4 respectively represent hydrogen atom, alkyl group, substituted or non-substituted aryl group, X represents a cation, and n is an integer of either 1 or 2; to improve charge rise characteristics and charging stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.