公开(公告)号：US09835962B2

公开(公告)日：2017-12-05

申请号：US14629995

申请日：2015-02-24

Applicant: FUJI XEROX CO., LTD.

Inventor： Satoshi Kamiwaki ,  Akira Matsumoto ,  Tsuyoshi Murakami ,  Satoshi Miura ,  Atsushi Sugawara ,  Yukiaki Nakamura ,  Kana Yoshida ,  Yutaka Saito ,  Sakon Takahashi ,  Yasuaki Hashimoto ,  Koji Sasaki ,  Tsutomu Furuta

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

CPC classification number: G03G9/0825 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08733 ,  G03G9/0918

Abstract: There is provided an electrostatic image-developing toner containing a binder resin, a coloring agent and a release agent having a melting temperature of 85° C. to 120° C., the toner having a sea-island structure involving a sea part containing the binder resin and an island part containing the release agent, wherein a mode value of the distribution of the eccentricity degree B of the release agent-containing island part, represented by the specific formula, is from 0.75 to 1.00 and a skewness of the distribution of the eccentricity degree B is from −1.30 to −0.50.

公开(公告)号：US10423087B2

公开(公告)日：2019-09-24

申请号：US15965985

申请日：2018-04-30

Applicant: FUJI XEROX CO., LTD.

Inventor： Moegi Iguchi ,  Sakon Takahashi ,  Soutaro Kakehi ,  Yuka Yamagishi ,  Yutaka Saito ,  Mona Tasaki ,  Tsutomu Furuta ,  Tsuyoshi Murakami ,  Satoshi Kamiwaki

IPC: G03G9/08 ,  G03G9/083 ,  G03G9/097

Abstract: An electrostatic charge image developing toner includes: a toner particle and a strontium titanate particle that is externally added to the toner particle, in which an average primary particle diameter of the strontium titanate particle that is present on a surface of the toner particle is 30 nm or more and 100 nm or less, and average primary particle circularity is 0.82 or more and 0.94 or less, and in which circularity that becomes 84% of accumulation of the primary particle is greater than 0.92.

公开(公告)号：US10754268B1

公开(公告)日：2020-08-25

申请号：US16516964

申请日：2019-07-19

Applicant: FUJI XEROX CO, LTD.

Inventor： Tsutomu Furuta ,  Masaru Takahashi

IPC: G03G9/08 ,  G03G9/087 ,  G03G15/08 ,  G03G9/093 ,  G03G9/09

Abstract: A toner for electrostatic image development includes: a binder resin; and a coloring agent. When an image with a toner mass per unit area of 4.0 g/m2 is formed using the toner, the image has a color that satisfies the following conditions (A), (B), and (C): (A) L* is from 37 to 50 inclusive; (B) a* is from −12 to 8 inclusive; and (C) b* is from −49 to −40 inclusive.

公开(公告)号：US10429755B2

公开(公告)日：2019-10-01

申请号：US15986230

申请日：2018-05-22

Applicant: FUJI XEROX CO., LTD.

Inventor： Tsuyoshi Murakami ,  Tsutomu Furuta

IPC: G03G9/09 ,  G03G9/087 ,  G03G9/08

Abstract: A white toner for electrostatic image development includes white toner particles containing a binder resin and a white pigment. When in a circularity distribution of the white pigment determined by sectional observation of the white toner particles, the cumulative 10% circularity from the smaller side is C10, and the cumulative 50% circularity is C50, the following formula (1) and formula (2) are satisfied. 0.900≤C50≤1.000  Formula (1): 1.00≤C50/C10≤1.13  Formula (2):

公开(公告)号：US09442404B1

公开(公告)日：2016-09-13

申请号：US14933755

申请日：2015-11-05

Applicant: FUJI XEROX CO., LTD.

Inventor： Yutaka Saito ,  Sakon Takahashi ,  Yasuaki Hashimoto ,  Tsutomu Furuta ,  Yuka Yamagishi

IPC: G03G9/087 ,  G03G9/08 ,  G03G15/08

CPC classification number: G03G9/08755 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08782 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/0865

Abstract: There is provided an electrostatic-image-developing toner containing: a toner particle which contains a binder resin containing a polyester resin, a release agent, and a styrene (meth)acrylic resin and in which the styrene (meth)acrylic resin forms a domain having a number average diameter of 300 nm to 800 nm in the toner particle; and an inorganic particle in which the number average diameter of the domain is from 1.5 times to 10 times the number average particle diameter of the inorganic particle.

Abstract translation: 提供一种静电图像显影调色剂，其包含：含有含有聚酯树脂，脱模剂和苯乙烯（甲基）丙烯酸树脂的粘合剂树脂的调色剂颗粒，其中苯乙烯（甲基）丙烯酸树脂形成结构域 在调色剂颗粒中具有300nm至800nm的数均粒径; 以及其平均直径为无机粒子的数均粒径的1.5倍〜10倍的无机粒子。