Invention Grant
- Patent Title: Toner
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Application No.: US16728179Application Date: 2019-12-27
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Publication No.: US10996577B2Publication Date: 2021-05-04
- Inventor: Koji Nishikawa , Yojiro Hotta , Yasuhiro Hashimoto , Takaaki Furui , Shotaro Nomura , Yuujirou Nagashima
- 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: JPJP2018-246999 20181228
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/087 ; G03G9/09 ; G03G9/097

Abstract:
Toner comprising a toner particle containing binder resin and colorant, wherein fine particles A (organosilicon polymer particles containing an organosilicon polymer) and fine particles B are present at the toner particle surface, the organosilicon polymer has structure in which Si and O are alternately bonded to each other, portion of Si in the organosilicon polymer has R1—SiO3/2 structure, and content of the fine particles A, proportion for area of peak originating with silicon having the structure, volume resistivity of the fine particles B, total coverage ratio of the toner particle surface by the fine particles A embedded in the toner particle (A1) and the fine particles A not embedded in the toner particle (A2), percentage for area occupied by the fine particles A2, content of the fine particles B in the toner, and percentage for area occupied by the fine particles B embedded in the toner particle are prescribed range.
Public/Granted literature
- US20200209770A1 TONER Public/Granted day:2020-07-02
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