Invention Grant
- Patent Title: Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
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Application No.: US14711233Application Date: 2015-05-13
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Publication No.: US09671708B2Publication Date: 2017-06-06
- Inventor: Kana Yoshida , Atsushi Sugawara , Tsuyoshi Murakami , Yukiaki Nakamura
- Applicant: FUJI XEROX CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: FUJI XEROX CO., LTD.
- Current Assignee: FUJI XEROX CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2014-221442 20141030
- Main IPC: G03G9/093
- IPC: G03G9/093 ; G03G9/087 ; G03G9/09 ; G03G9/08

Abstract:
An electrostatic charge image developing toner includes a toner particle that has a sea-island structure including a sea portion containing a binder resin and an island portion containing a release agent and having at least two maximum values of distribution of a degree of uneven distribution B of the island portion shown by the following Equation (1): degree of uneven distribution B=2d/D Equation (1) in Equation (1), D represents an equivalent circle diameter (μm) of the toner particle obtained by cross section observation of the toner particle, and d represents a distance (μm) between the center of gravity of the toner particle and the center of gravity of the island portion containing the release agent obtained by cross section observation of the toner particle.
Public/Granted literature
- US20160124334A1 ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND TONER CARTRIDGE Public/Granted day:2016-05-05
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