Magnetic toner
US5223365A · kind A · utility
11Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1989 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Dec 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The improved toner is produced by supplying a spheroidizing treatment under mechanical impact force to resin particles that contain at least magnetic particles in a resin and said magnetic particles are substantially spherical in shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.