Toner classification apparatus and toner production method
US11829102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jun 17, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B7/083
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Toner classification apparatus comprising classification rotor comprising a plurality of vanes extending from rotation center side of classification rotor to outer circumference side of classification rotor; the plurality of vanes are disposed with prescribed gaps established between vanes; gaps form opening facing rotation center region of classification rotor; each of vanes is disposed such that portion of vane away from of center of rotation of classification rotor is located on more upstream side in a direction of rotation of classification rotor than portion of vane closer to center of rotation of classification rotor; each of vanes has elbow; and in a horizontal cross section provided by sectioning classification rotor in a rotational axis perpendicular direction of classification rotor, shape of vane satisfies prescribed formulae, as well as toner production method comprising classification step of carrying out classification process on particles to be classified by using toner classification apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.