| abstract |
The object of the present invention is to provide a ferrite particle that has a low apparent density, can maintain various characteristics in a controllable state, and can satisfy a certain volume with a small weight, and is composed of the ferrite particle The ferrite carrier core material, the ferrite carrier using the ferrite core material, and the electrophotographic developer. In order to achieve this, ferrite particles for ferrite carrier core materials characterized by a shell structure containing titanium oxide, and ferrite carriers used as the ferrite carrier core materials of the ferrite particles are used And electrophotographic developer. |