| 发明名称 | Developing roller, developing device, image forming apparatus, and manufacturing method of developing roller | ||
| 摘要 | A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes an aluminum oxide thin film and a resin coat layer, the aluminum oxide thin film being formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being formed on a surface of the aluminum oxide thin film that has been subjected to a predetermined heating process, the resin coat layer being made of a resin material and having electric conductivity. | ||
| 申请公布号 | US9304445(B2) | 申请公布日期 | 2016.04.05 |
| 申请号 | US201414574266 | 申请日期 | 2014.12.17 |
| 申请人 | KYOCERA Document Solutions Inc. | 发明人 | Fujishima Masashi;Kamiyama Yuji;Shimizu Tamotsu;Okada Shizuka;Saito Sakae;Oishi Yasuhiro |
| 分类号 | G03G15/09;G03G15/08;C23C28/00;C25D11/18;C25D9/06 | 主分类号 | G03G15/09 |
| 代理机构 | Alleman Hall McCoy Russell & Tuttle LLP | 代理人 | Alleman Hall McCoy Russell & Tuttle LLP |
| 主权项 | 1. A developing roller comprising: a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier, wherein the roller main body includes an aluminum oxide thin film and a resin coat layer, the aluminum oxide thin film being formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being formed on a surface of the aluminum oxide thin film that has been subjected to a predetermined heating process, the resin coat layer being made of a resin material and having electric conductivity, and a ratio Ry/Rx is in a range from 1.0×10−3 to 16.8, the Rx representing a surface resistance of the base body on which the aluminum oxide thin film has been formed, the Ry representing a surface resistance of the roller main body. | ||
| 地址 | Osaka-shi JP | ||