| 发明名称 | Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier | ||
| 摘要 | Provided is a resin-coated carrier for an electrophotographic developer, wherein the surface of a magnetic particle is coated with a mixed resin composed of two resins, and when the two resins are denoted by the resin 1 and the resin 2, respectively, the relative difference between the respective adsorbed moisture amounts of the resin 1 and the resin 2 at a temperature of 30° C. and a relative humidity of 80% satisfies the following formula (1): 1≦|ax−b(100−x)|≦10 (1)a: the adsorbed moisture content (% by weight) of the resin 1 b: the adsorbed moisture content (% by weight) of the resin 2 x: the content percentage of the resin 1 (0<x<100). | ||
| 申请公布号 | US9329515(B2) | 申请公布日期 | 2016.05.03 |
| 申请号 | US201414227564 | 申请日期 | 2014.03.27 |
| 申请人 | POWDERTECH CO., LTD. | 发明人 | Ishikawa Makoto;Uemura Tetsuya;Aoki Masashi |
| 分类号 | G03G9/00;G03G9/113;G03G9/107 | 主分类号 | G03G9/00 |
| 代理机构 | Greenblum and Bernstein, P.L.C. | 代理人 | Greenblum and Bernstein, P.L.C. |
| 主权项 | 1. A resin-coated carrier for an electrophotographic developer, wherein the surface of a magnetic particle is coated with a mixed resin composed of two resins, and when the two resins are denoted by the resin 1 and the resin 2, respectively, the relative difference between the respective adsorbed moisture amounts of the resin 1 and the resin 2 at a temperature of 30° C. and a relative humidity of 80% satisfies the following formula (1): 1≦|ax−b(100−x)|≦10 (1) a: the adsorbed moisture content (% by weight) of the resin 1 b: the adsorbed moisture content (% by weight) of the resin 2 x: the content percentage of the resin 1 (0<x<100). | ||
| 地址 | Chiba JP | ||