Invention Grant
- Patent Title: Toner and method of producing the toner
- Patent Title (中): 调色剂和调色剂的制造方法
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Application No.: US14737933Application Date: 2015-06-12
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Publication No.: US09594320B2Publication Date: 2017-03-14
- Inventor: Makoto Fukatsu , Manami Haraguchi , Atsushi Nakamoto , Kazunari Hagiwara , Tatsuaki Orihara , Shuhei Tokiwa
- 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 & Scinto
- Priority: JP2014-130690 20140625
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/087

Abstract:
Provided is a toner, including a toner particle having a core particle containing a binder resin and a colorant. The toner particle has a protrusion on a surface thereof, and the protrusion contains an olefin-based polymer having a cyclic olefin structure. When an average radius of curvature of the protrusion, an average particle diameter of the core particle, a projected area of the toner particle, and a projected area of the protrusion that are calculated from a planar projected image of an image of the toner particle photographed with a scanning electron microscope are represented by Rs (μm), Rc (μm), S, and S1, respectively, the average radius of curvature Rs of the protrusion is 0.004Rc μm or more and 0.100Rc μm or less, and an average of a surface coverage “100×S1/S” % is 5% or more and 90% or less.
Public/Granted literature
- US20150378271A1 TONER AND METHOD OF PRODUCING THE TONER Public/Granted day:2015-12-31
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