Invention Grant
- Patent Title: Magnetic toner
- Patent Title (中): 磁性调色剂
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Application No.: US14362380Application Date: 2012-12-26
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Publication No.: US09244371B2Publication Date: 2016-01-26
- Inventor: Yoshitaka Suzumura , Yusuke Hasegawa , Michihisa Magome , Kozue Uratani
- Applicant: CANON KABUSHIKI KAISHA
- 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: JP2011-285913 20111227
- International Application: PCT/JP2012/084290 WO 20121226
- International Announcement: WO2013/100186 WO 20130704
- Main IPC: G03G9/083
- IPC: G03G9/083 ; G03G9/087 ; G03G9/097

Abstract:
A magnetic toner contains magnetic toner particles containing a binder resin, a release agent, and a magnetic body and inorganic fine particles present on the surface of the magnetic toner particles, wherein the inorganic fine particles present on the surface of the magnetic toner particles contain metal oxide fine particles, as described in the specification. The coverage ratio of the magnetic toner particles' surface by the inorganic fine particles and the coverage ratio by the inorganic fine particles fixed to the magnetic toner particles' surface reside in a prescribed relationship, the binder resin contains a polyester resin, the release agent contains an ester compound, and an endothermic peak for the magnetic toner has a prescribed value.
Public/Granted literature
- US20140322639A1 MAGNETIC TONER Public/Granted day:2014-10-30
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