| 发明名称 | Resin-filled ferrite carrier for electrophotographic developer and electrophotographic developer using the ferrite carrier | ||
| 摘要 | There is provided a resin-filled ferrite carrier for an electrophotographic developer, in which a void of a porous ferrite particle used as a ferrite carrier core material is filled with silicone resin, wherein a true specific gravity (Y) of the porous ferrite particle filled with the silicone resin and a Si/Fe value (X) measured by fluorescent X-ray elemental analysis satisfy the following inequality (1): −350X≦Y−4.83≦−100X (1). | ||
| 申请公布号 | US9588453(B2) | 申请公布日期 | 2017.03.07 |
| 申请号 | US201514673557 | 申请日期 | 2015.03.30 |
| 申请人 | POWDERTECH CO., LTD. | 发明人 | Sawamoto Hiroki;Sugiura Takao |
| 分类号 | G03G9/113;G03G9/10;G03G9/107 | 主分类号 | G03G9/113 |
| 代理机构 | Procopio, Cory, Hargreaves & Savitch LLP | 代理人 | Procopio, Cory, Hargreaves & Savitch LLP |
| 主权项 | 1. A resin-filled ferrite carrier for an electrophotographic developer, in which a void of a porous ferrite particle used as a ferrite carrier core material is filled with silicone resin, wherein a true specific gravity (Y) of the porous ferrite particle filled with the silicone resin and a Si/Fe value (X) measured by fluorescent X-ray elemental analysis satisfy the following inequality (1): −350X≦Y−4.83≦−100X (1); and wherein the true specific gravity (Y) of the porous ferrite particle filled with the silicone resin also satisfies the following inequality (2): 4.15 g/cm3≦Y (2). | ||
| 地址 | Kashiwa-Shi, Chiba JP | ||