Invention Grant
US09329515B2 Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier
有权
用于电子照相显影剂的树脂涂覆载体和使用树脂涂布载体的电子照相显影剂
- Patent Title: Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier
- Patent Title (中): 用于电子照相显影剂的树脂涂覆载体和使用树脂涂布载体的电子照相显影剂
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Application No.: US14227564Application Date: 2014-03-27
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Publication No.: US09329515B2Publication Date: 2016-05-03
- Inventor: Makoto Ishikawa , Tetsuya Uemura , Masashi Aoki
- Applicant: POWDERTECH CO., LTD.
- Applicant Address: JP Chiba
- Assignee: POWDERTECH CO., LTD.
- Current Assignee: POWDERTECH CO., LTD.
- Current Assignee Address: JP Chiba
- Agency: Greenblum and Bernstein, P.L.C.
- Priority: JP2013-074600 20130329; JP2013-273013 20131227
- Main IPC: G03G9/00
- IPC: G03G9/00 ; G03G9/113 ; G03G9/107

Abstract:
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
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