Invention Grant
- Patent Title: Electrostatic latent image developing toner, production method of the toner for electrostatic latent image development and electrophotographic image formation method
- Patent Title (中): 静电潜影显影用调色剂,静电潜像显影用调色剂的制造方法以及电子照相图像形成方法
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Application No.: US14284842Application Date: 2014-05-22
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Publication No.: US09213249B2Publication Date: 2015-12-15
- Inventor: Futoshi Kadonome , Yukio Hosoya , Kazue Nakamura , Saburou Hiraoka , Yasuko Uchino
- Applicant: Konica Minolta, Inc.
- Applicant Address: JP Tokyo
- Assignee: KONICA MINOLTA, INC.
- Current Assignee: KONICA MINOLTA, INC.
- Current Assignee Address: JP Tokyo
- Agency: Lucas & Mercanti, LLP
- Priority: JP2013-109533 20130524
- Main IPC: G03G9/097
- IPC: G03G9/097 ; G03G9/08 ; G03G13/06 ; G03G13/00

Abstract:
A toner for electrostatic latent image development of the present invention includes toner particles containing toner mother particles and an external additive. The external additive contains fatty acid metal salt particles, and a volume based particle diameter (size) distribution of the fatty acid metal salt particles has two peaks on a side of smaller size and a side of larger size, respectively. A volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of smaller size is 3.0 μm or smaller and a volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of larger size is larger than a volume based mean particle diameter of the toner mother particles.
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