| 发明名称 |
FERRITE PARTICLES, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPMENT USING SAME, AND DEVELOPER FOR ELECTROPHOTOGRAPHY |
| 摘要 |
There are provided ferrite particles that have, as a main component, a material represented by a composition formula MxFe3-xO4 (where M is at least one type of metal selected from a group consisting of Mg, Mn, Ca, Ti, Cu, Zn, Sr and Ni, 0<x<1), where the maximum height Rz of the particles falls within a range of 1.40 to 1.90, and the degree of distortion Rsk of the particles falls within a range of −0.25 to −0.07. In this way, when the ferrite particles are used as the carrier of an electrophotographic image forming apparatus, even if an image formation speed is increased, the occurrence of a failure is reduced for a long period of time. |
| 申请公布号 |
US2016266510(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201415031944 |
申请日期 |
2014.10.29 |
| 申请人 |
DOWA ELECTRONICS MATERIALS Co., Ltd. ;DOWA IP CREATION Co., Ltd. |
发明人 |
SASAKI Shinya;ISHIKAWA Yohei;SEKI Haruka |
| 分类号 |
G03G9/107;G03G9/113 |
主分类号 |
G03G9/107 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Ferrite particles that have, as a main component, a material represented by a composition formula MxFe3-xO4 (where M is at least one type of metal selected from a group consisting of Mg, Mn, Ca, Ti, Cu, Zn, Sr and Ni, 0<x<1),
wherein a maximum height Rz of the particles falls within a range of 1.40 μm to 1.90 μm, and a degree of distortion Rsk of the particles falls within a range of −0.25 to −0.07. |
| 地址 |
Tokyo JP |
