- Patent Title: Electrostatic charge image developing toner, electrostatic charge image developer, method for producing electrostatic charge image developing toner, toner cartridge, process cartridge, image forming apparatus, and image forming method
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Application No.: US17400172Application Date: 2021-08-12
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Publication No.: US12105469B2Publication Date: 2024-10-01
- Inventor: Atsushi Sugawara , Hiroshi Nakazawa
- Applicant: FUJIFILM Business Innovation Corp.
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM BUSINESS INNOVATION CORP.
- Current Assignee: FUJIFILM BUSINESS INNOVATION CORP.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP 21086309 2021.05.21
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/08 ; G03G9/097 ; G03G15/08 ; G03G21/18
Abstract:
An electrostatic charge image developing toner includes a toner particle containing a binder resin and a releasing agent, and the following requirement (1) is satisfied in cross section observation of the toner particle: requirement (1): the number of a releasing agent domain having a long diameter of 500 nm or more and 1,000 nm or less is 7 or more on average per toner particle.
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