Invention Grant
- Patent Title: Toner
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Application No.: US16253976Application Date: 2019-01-22
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Publication No.: US10539893B2Publication Date: 2020-01-21
- Inventor: Maho Tanaka , Kunihiko Nakamura , Kenta Kamikura , Yusuke Kosaki
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP2018-011298 20180126
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/097 ; G03G9/087 ; G03G9/09

Abstract:
A toner comprising a toner particle comprising a binder resin, wherein a layer comprising an organosilicon condensate is present on the surface of the toner particle; the layer comprising the organosilicon condensate further comprises a reaction product of a compound comprising at least one metal element selected from all the metal elements belonging to Groups 3 to 13, and a polyhydric acid; in a backscattered electron image of the toner captured at a magnification of 50,000 times by using a scanning electron microscope, an average value of an area of the reaction product is from 10 nm2 to 5000 nm2, and a coefficient of variation of the area of the reaction product is not more than 10.0.
Public/Granted literature
- US20190235403A1 TONER Public/Granted day:2019-08-01
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