发明授权
- 专利标题: Magnetic carrier for electrophotographic developing agent and method of producing the same
- 专利标题(中): 电子照相显影剂用磁性载体及其制造方法
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申请号: US505852申请日: 1995-07-24
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公开(公告)号: US5670287A公开(公告)日: 1997-09-23
- 发明人: Hideaki Kawata , Tomohide Iida , Yoshiteru Hatase , Hidekazu Tamura , Nobuaki Kawano
- 申请人: Hideaki Kawata , Tomohide Iida , Yoshiteru Hatase , Hidekazu Tamura , Nobuaki Kawano
- 申请人地址: JPX Osaka
- 专利权人: Mita Industrial Co., Ltd.
- 当前专利权人: Mita Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX6-195960 19940728
- 主分类号: G03G9/113
- IPC分类号: G03G9/113 ; G03G9/107
摘要:
A magnetic carrier for electrophotographic developing agent wherein the surfaces of the magnetic core particles are partly coated with a thermosetting resin and a small amount of a low-melting or low-softening thermoplastic resin or wax, and at least recessed portions of the core particles are filled with these coating materials. The magnetic carrier has an electric resistance that is maintained within a range that is suited for forming the image, and suppresses the occurrence of spent toner.