Invention Grant
- Patent Title: Developing roller, process cartridge, and electrophotographic apparatus
- Patent Title (中): 显影辊,处理盒和电子照相设备
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Application No.: US13438580Application Date: 2012-04-03
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Publication No.: US08600273B2Publication Date: 2013-12-03
- Inventor: Masaki Yamada , Takashi Kusaba , Kunimasa Kawamura , Yuji Sakurai , Toru Ishii
- Applicant: Masaki Yamada , Takashi Kusaba , Kunimasa Kawamura , Yuji Sakurai , Toru Ishii
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper and Scinto
- Priority: JP2010-292765 20101228
- Main IPC: G03G15/08
- IPC: G03G15/08

Abstract:
A developing roller including a mandrel, an elastic layer provided on the mandrel and containing a cured material of an addition curable-type dimethyl silicone rubber, and a surface layer containing a urethane resin that covers the circumferential surface of the elastic layer. The urethane resin has a structure represented by the following formula (1), and one or both structures selected from a structure represented by the following formula (2) and a structure represented by the following formula (3) between two adjacent urethane linkages.
Public/Granted literature
- US20120195631A1 DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2012-08-02
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