Invention Grant
- Patent Title: Toner and method for producing toner
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Application No.: US17405747Application Date: 2021-08-18
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Publication No.: US11841680B2Publication Date: 2023-12-12
- Inventor: Takaaki Furui , Atsuhiko Ohmori , Yasuhiro Hashimoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc., IP Division
- Priority: JP 20142843 2020.08.26 JP 21108996 2021.06.30
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/083 ; G03G9/08 ; B82Y40/00

Abstract:
A toner comprising: a toner particle containing a resin component and a wax; and an inorganic fine particle on the surface of the toner particle, wherein, in a cross section of the toner particle, domains containing the wax are observed, and when among the domains, domains having a major diameter of 10-300 nm are defined as domains S, an occupation area percentage of which a ratio of a total sum of areas occupied by the domains S in a region from a surface of the toner particle to a depth of 600 nm in the cross section with respect to an area of the region, is 3.0-15.0%, and wherein the inorganic fine particle contains a fine particle A having a volume resistivity of 1.0×103 to 3.0×105 Ω·cm, and having a relative permittivity εr of 100 or more.
Public/Granted literature
- US20220066341A1 TONER AND METHOD FOR PRODUCING TONER Public/Granted day:2022-03-03
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