Toner for developing electrostatic image, two-component developer and image forming apparatus
US8956795B2 · kind B2 · utility
2Cited by
1References
10Claims
0Family size
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Key dates
| Filing date | Mar 11, 2013 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09725
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner for developing an electrostatic image, including: toner base particles each including a binder resin and a releasing agent; and inorganic fine particles, wherein the toner includes the inorganic fine particles as an external additive on a surface of the toner base particle, wherein the toner base particles have a BET specific surface area of 2.5 m2/g to 5.0 m2/g, and wherein the inorganic fine particles comprise inorganic fine particles (A) which are each a secondary particle where a plurality of primary particles are coalesced together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.