Invention Grant
- Patent Title: Charging roller with polyrotaxane
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Application No.: US17414145Application Date: 2020-07-17
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Publication No.: US11531285B2Publication Date: 2022-12-20
- Inventor: Noriaki Kuroda
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- Agency: Staas & Halsey LLP
- Priority: JPJP2019-136200 20190724
- International Application: PCT/US2020/042561 WO 20200717
- International Announcement: WO2021/016088 WO 20210128
- Main IPC: G03G15/02
- IPC: G03G15/02

Abstract:
A charging roller includes a conductive support, and a roller body to rotate about the conductive support. The roller body includes a conductive elastic layer to contact the conductive support, and a conductive resin layer located around the conductive elastic layer to form a surface of the roller body. The surface has ten-point average roughness Rzjis of approximately 20 μm to 30 μm. The conductive resin layer contains polyrotaxane.
Public/Granted literature
- US20220137527A1 CHARGING ROLLER WITH POLYROTAXANE Public/Granted day:2022-05-05
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