公开(公告)号：US10423088B1

公开(公告)日：2019-09-24

申请号：US16117060

申请日：2018-08-30

申请人： FUJI XEROX CO., LTD.

发明人： Atsushi Sugawara ,  Sakiko Hirai ,  Yasuo Kadokura ,  Daisuke Tomita ,  Satoshi Miura

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

摘要： An electrostatic charge image developing toner includes a styrene-acrylic resin and exhibits a z average molecular weight Mz of 80,000 to 400,000 and a molecular weight distribution curve satisfying Expression (1): 1.3≤b/a≤2.0, and an electrostatic charge image developing toner includes a styrene-acrylic resin, and exhibits a z average molecular weight Mz of 100,000 to 400,000 and a molecular weight distribution curve satisfying Expression (A): 0.75≤(c+d)/(2×d)≤0.95, wherein a, b, c and d are defined in the specification.

公开(公告)号：US09891543B2

公开(公告)日：2018-02-13

申请号：US15211974

申请日：2016-07-15

申请人： FUJI XEROX CO., LTD.

发明人： Yasuo Kadokura ,  Hiroyoshi Okuno ,  Satoshi Inoue ,  Yoshifumi Iida ,  Tomohito Nakajima ,  Yuka Zenitani ,  Yoshifumi Eri ,  Yasuhisa Morooka ,  Shunsuke Nozaki ,  Takeshi Iwanaga ,  Sakae Takeuchi

IPC分类号： G03G9/097 ,  G03G9/08 ,  G03G15/08

CPC分类号： G03G9/0827 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09791 ,  G03G15/08 ,  G03G15/0865 ,  G03G2215/0132

摘要： An electrostatic charge image developing toner includes toner particles and an external additive that includes silica particles having a compression aggregation degree of 60% to 95% and a particle compression ratio of 0.20 to 0.40 and fatty acid metal salt particles.

公开(公告)号：US09176408B2

公开(公告)日：2015-11-03

申请号：US14026437

申请日：2013-09-13

申请人： FUJI XEROX CO., LTD.

发明人： Yasuo Kadokura ,  Emi Matsushita ,  Hiroyoshi Okuno

IPC分类号： G03G9/097 ,  G03G9/093 ,  G03G9/08 ,  G03G15/08

CPC分类号： G03G9/09321 ,  G03G9/0819 ,  G03G9/09371 ,  G03G9/09392 ,  G03G9/09725 ,  G03G15/0865

摘要： An electrostatic charge image developing toner includes a toner particle including a core particle containing a polyester resin and a coating layer containing a vinyl resin that coats the surface of the core particle, and an external additive that is formed of silica particles having an average circularity of from 0.75 to 0.9 and an average value of ratios of circle equivalent diameters Da obtained by a plane image analysis to the maximum height H obtained by a stereoscopic image analysis of more than 1.5 and less than 1.9.

摘要翻译： 静电荷图像显影调色剂包括：调色剂颗粒，其包含含有聚酯树脂的芯颗粒和包含涂覆核颗粒表面的乙烯基树脂的涂层;以及外部添加剂，其由具有平均圆形度的二氧化硅颗粒形成 从0.75到0.9，通过平面图像分析获得的圆当量直径Da与通过立体图像分析获得的最大高度H的平均值大于1.5且小于1.9。

公开(公告)号：US10908523B2

公开(公告)日：2021-02-02

申请号：US15988574

申请日：2018-05-24

申请人： FUJI XEROX CO., LTD.

发明人： Atsushi Sugawara ,  Satoshi Miura ,  Akira Matsumoto ,  Sakiko Hirai ,  Yasuo Kadokura

IPC分类号： G03G9/08

摘要： Provided is a toner including toner particles. The toner particles has a volume particle diameter distribution index on a side of the largest diameter (GSDv (90/50)) of 1.26 or less; a number particle diameter distribution index on a side of the smallest diameter (GSDp (50/10)) of 1.28 or less; GSDv (90/50)/GSDp (50/10) of from 0.96 to 1.01; and an average circularity of 0.95 or more and 1.00 or less.

公开(公告)号：US10761444B2

公开(公告)日：2020-09-01

申请号：US16261500

申请日：2019-01-29

申请人： FUJI XEROX CO., LTD.

发明人： Atsushi Sugawara ,  Yasuo Kadokura ,  Daisuke Tomita ,  Sakiko Hirai ,  Satoshi Miura

IPC分类号： G03G9/08 ,  G03G9/087

摘要： An electrostatic charge image development toner satisfies the following: a maximum slope of an absolute value of log (loss modulus G″) from 60° C. to 90° C. is 0.07 or more and 0.16 or less; a maximum slope of an absolute value of log (loss modulus G″) from 90° C. to 130° C. is 0.08 or less; and G″(60) is 5.0×107 Pa or more and 1.0×1010 Pa or less, where G″(60) is a loss modulus at 60° C.

公开(公告)号：US10754269B1

公开(公告)日：2020-08-25

申请号：US16517798

申请日：2019-07-22

申请人： FUJI XEROX CO., LTD.

发明人： Yasuo Kadokura ,  Daisuke Tomita ,  Atsushi Sugawara

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G9/093 ,  G03G9/09

摘要： An electrostatic-image developing toner includes toner particles including a binder resin including an amorphous resin including a polyester resin segment and a styrene acrylate resin segment and a release agent. The content of 5′-chloro-3-hydroxy-2′-methoxy-2-naphthanilide in the electrostatic-image developing toner is 1,000 ppm by mass or less.

公开(公告)号：US10538434B2

公开(公告)日：2020-01-21

申请号：US15988439

申请日：2018-05-24

申请人： FUJI XEROX CO., LTD.

发明人： Sakae Takeuchi ,  Hiroyoshi Okuno ,  Hideaki Yoshikawa ,  Yasuo Kadokura ,  Yasunobu Kashima ,  Takeshi Iwanaga ,  Shunsuke Nozaki ,  Yuka Zenitani

IPC分类号： C01G23/08 ,  B01J35/00 ,  B01J21/06

摘要： A titanium oxide aerogel particle includes a metallic compound that has a metal atom and a hydrocarbon group, the metallic compound being bonded to a surface of the aerogel particle via an oxygen atom. The titanium oxide aerogel particle has a BET specific surface area of 120 m2/g to 1000 m2/g, and has absorption at wavelengths of 450 nm and 750 nm.

公开(公告)号：US10082742B2

公开(公告)日：2018-09-25

申请号：US15583338

申请日：2017-05-01

申请人： FUJI XEROX CO., LTD.

发明人： Akira Matsumoto ,  Yasuo Kadokura ,  Shinya Nakashima ,  Yukiaki Nakamura ,  Satoshi Miura

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/09 ,  G03G15/08

CPC分类号： G03G9/0821 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0918 ,  G03G15/0865

摘要： An electrostatic charge image developing toner includes toner particles including an amorphous resin and a crystalline resin, wherein, when the toner particles are subjected to a measurement by differential scanning calorimetry before and after being heated at a temperature of 50° C. and a humidity of 50% RH for a week, a relationship between an endothermic amount S1 (J/g) derived from the crystalline resin in a first heating process with respect to the toner particles before being heated and an endothermic amount Sh (J/g) derived from the crystalline resin in a first heating process with respect to the toner particles after being heated satisfies Expression (1): 0.50≤S1/Sh≤0.90.

公开(公告)号：US09946178B2

公开(公告)日：2018-04-17

申请号：US15218345

申请日：2016-07-25

申请人： FUJI XEROX CO., LTD.

发明人： Yasuo Kadokura ,  Hiroyoshi Okuno ,  Satoshi Inoue ,  Yoshifumi Iida ,  Tomohito Nakajima ,  Yuka Zenitani ,  Yoshifumi Eri ,  Yasuhisa Morooka ,  Shunsuke Nozaki ,  Takeshi Iwanaga ,  Sakae Takeuchi

IPC分类号： G03G9/097 ,  G03G9/087 ,  G03G15/08 ,  G03G9/08 ,  G03G9/113

CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09725 ,  G03G9/09766 ,  G03G9/1139 ,  G03G15/08 ,  G03G15/0865 ,  G03G2215/0132

摘要： A toner for electrostatic image development includes toner particles; and an external additive containing silica particles and polytetrafluorethylene particles, the silica particles having a compression-aggregation degree of 60% or more and 95% or less and a particle compression ratio of 0.20 or more and 0.40 or less.

公开(公告)号：US09864287B2

公开(公告)日：2018-01-09

申请号：US15219950

申请日：2016-07-26

申请人： FUJI XEROX CO., LTD.

发明人： Yoshifumi Iida ,  Hiroyoshi Okuno ,  Satoshi Inoue ,  Tomohito Nakajima ,  Yuka Zenitani ,  Yoshifumi Eri ,  Takeshi Iwanaga ,  Sakae Takeuchi ,  Shunsuke Nozaki ,  Yasuo Kadokura ,  Yasuhisa Morooka

IPC分类号： G03G9/097 ,  G03G9/08 ,  G03G9/087 ,  G03G15/08

CPC分类号： G03G9/0825 ,  G03G9/0808 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/08 ,  G03G15/0865 ,  G03G2215/0132

摘要： An electrostatic charge image developing toner includes kneaded and pulverized toner particles that contain a binder resin and a release agent, the release agent being partially exposed, and an external additive that contains silica particles having a compression aggregation degree of from 60% to 95% and a particle compression ratio of from 0.20 to 0.40.