公开(公告)号：US09835966B2

公开(公告)日：2017-12-05

申请号：US15218781

申请日：2016-07-25

申请人： FUJI XEROX CO., LTD.

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

IPC分类号： G03G9/113 ,  G03G21/18 ,  G03G9/08

CPC分类号： G03G9/1132 ,  G03G9/0819 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/1131 ,  G03G15/08 ,  G03G21/18 ,  G03G2215/0132

摘要： An electrostatic charge image developer includes an electrostatic charge image developing toner that includes toner particles, and an external additive which is added to the toner particles and which includes silica particles whose compression aggregation degree is from 60% to 95% and particle compression ratio is from 0.20 to 0.40, and a carrier for developing an electrostatic charge image that includes a core particle and a resin coated layer which covers a surface of the core particle and that has a surface roughness Ra (based on JIS-B0601) of 0.5 μm or less and a circularity of 0.975 or more.

公开(公告)号：US09726998B1

公开(公告)日：2017-08-08

申请号：US15207770

申请日：2016-07-12

申请人： FUJI XEROX CO., LTD.

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

IPC分类号： G03G9/107 ,  G03G9/113 ,  G03G21/18 ,  G03G9/08 ,  G03G9/097

CPC分类号： G03G9/1132 ,  G03G9/0825 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1139 ,  G03G21/18

摘要： An electrostatic charge image developer includes an electrostatic charge image developing toner that includes toner particles, and an external additive which is added to the toner particles and which includes silica particles whose compression aggregation degree is from 60% to 95% and particle compression ratio is from 0.20 to 0.40, and a carrier for developing an electrostatic charge image that has a core including a magnetic member in a binder resin for a core and a coating layer which coders a surface or the core and which includes a resin for a coating layer and has a surface roughness Ra of from 0.25 μm to 0.4 μm.

公开(公告)号：US08956796B2

公开(公告)日：2015-02-17

申请号：US13889589

申请日：2013-05-08

申请人： Fuji Xerox Co., Ltd.

发明人： Yasuo Kadokura ,  Kazufumi Tomita ,  Hideaki Yoshikawa

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

CPC分类号： G03G9/0806 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/09725 ,  G03G15/0865

摘要： Provided is an electrostatic charge image developing toner including toner base particles which contain a polyester resin and a vinyl resin and does not have a coating layer and wherein the concentration of the polyester resin on the particle surface is higher than the concentration of the polyester resin in the inside of the particles, and a sol-gel silica which has an average circularity of from 0.75 to 0.9, on the surface of the toner base particles.

摘要翻译： 提供了一种静电荷图像显影调色剂，其包含含有聚酯树脂和乙烯基树脂的调色剂基础颗粒，并且不具有涂层，并且其中颗粒表面上的聚酯树脂的浓度高于聚酯树脂的浓度 颗粒内部和平均圆形度为0.75至0.9的溶胶 - 凝胶二氧化硅，在调色剂基础颗粒的表面上。

公开(公告)号：US20210278773A1

公开(公告)日：2021-09-09

申请号：US16944975

申请日：2020-07-31

申请人： FUJI XEROX CO., LTD

发明人： Jumpei IWASAKI ,  Yasuo Kadokura ,  Shintaro Anno ,  Kazutsuna Sasaki ,  Satoshi Miura

IPC分类号： G03G9/083 ,  G03G9/097 ,  G03G9/08 ,  G03G9/087 ,  G03G15/08

摘要： An electrostatic charge image developing carrier includes: magnetic particles; and a resin layer coating the magnetic particles and containing inorganic particles, in which an average particle diameter of the inorganic particles is 5 nm or more and 90 nm or less, an average thickness of the resin layer is 0.6 μm or more and 1.4 μm or less, and a ratio B/A of a surface area B of the electrostatic charge image developing carrier to a plan view area A of the electrostatic charge image developing carrier is 1.020 or more and 1.100 or less when a surface of the electrostatic charge image developing carrier is three-dimensionally analyzed.

公开(公告)号：US10807058B2

公开(公告)日：2020-10-20

申请号：US15916649

申请日：2018-03-09

申请人： FUJI XEROX CO., LTD.

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

IPC分类号： B01J13/00 ,  C01B33/158 ,  C01B33/159 ,  C01G23/047 ,  B01J31/12 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01J35/02 ,  B01J21/06 ,  B01J37/02 ,  B01J37/03 ,  B01J21/08 ,  C01G23/053 ,  B01J31/02

摘要： A silica-titania composite aerogel particle includes: a base particle including silicon and titanium whose element ratio Si/Ti is more than 0 and 6 or less; and a surface layer present on the base particle and including a metal compound having a metal atom and a hydrocarbon group. The silica-titania composite aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, has a BET specific surface area in the range of 200 m2/g to 1,200 m2/g, and has a value A in the range of 0.03 to 0.3. The value A is calculated by formula: A=(peak intensity of C—O bond+peak intensity of C═O bond)/(peak intensity of C—C bond+peak intensity of C═C bond). The peak intensity is obtained from a C is XPS spectrum.

公开(公告)号：US10732532B1

公开(公告)日：2020-08-04

申请号：US16517791

申请日：2019-07-22

申请人： FUJI XEROX CO., LTD.

发明人： Atsushi Sugawara ,  Yasuo Kadokura ,  Daisuke Tomita

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G15/08 ,  G03G9/097 ,  C08F283/01

摘要： An electrostatic image developing toner includes toner base particles including at least a binder resin and a release agent, wherein the binder resin includes a hybrid resin having a polyester resin segment and a styrene-acrylic copolymer segment, and a molecular weight distribution curve of the toner satisfies Formula (1): 1.3≤b/a≤2.5, where, in the molecular weight distribution curve in which a perpendicular line is drawn from a baseline to a peak top having a peak top height to divide the molecular weight distribution curve into a lower-molecular-weight region and a higher-molecular-weight region, a represents a width of the lower-molecular-weight region at a height of 15% of the peak top height, and b represents a width of the higher-molecular-weight region at a height of 15% of the peak top height.

公开(公告)号：US10719022B2

公开(公告)日：2020-07-21

申请号：US16103330

申请日：2018-08-14

申请人： FUJI XEROX CO., LTD.

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

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

摘要： An electrostatic charge image developing toner has a surface property index value represented by Formula S of 2.0 to 2.8, an electrostatic charge image developing toner has a surface property index value represented by Formula S of more than 2.8 and 3.5 or less, and an electrostatic charge image developing toner has a surface property index value represented by Formula S of more than 1.0 and less than 2.0 and a calculated value of a specific surface area in Formula S of 0.70 to 1.3: (Surface property index value)=(Measured value of specific surface area)/(Calculated value of specific surface area)  Formula S wherein (Calculated value of specific surface area)=(Sum of surface areas calculated from equivalent circle diameters of 4,500 toner particles in flow particle image analysis)/{(Specific gravity of toner)×(Sum of volumes calculated from equivalent circle diameters of 4,500 toner particles in flow particle image analysis)}.

公开(公告)号：US10656546B1

公开(公告)日：2020-05-19

申请号：US16519298

申请日：2019-07-23

申请人： FUJI XEROX CO., LTD.

发明人： Daisuke Tomita ,  Yasuo Kadokura ,  Atsushi Sugawara

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/087 ,  G03G9/09 ,  G03G15/08 ,  G03G9/093 ,  C08F293/00

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 1-amino-2-methoxybenzene in the electrostatic-image developing toner is 200 ppm by mass or less.

公开(公告)号：US10197933B2

公开(公告)日：2019-02-05

申请号：US15489204

申请日：2017-04-17

申请人： FUJI XEROX CO., LTD.

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

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

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 (DSC) before and after being stored at a temperature of 50° C. and a humidity of 90% RH for 24 hours, a relationship between an onset temperature T1 (° C.) of an endothermic peak having the lowest peak temperature in a first heating step with respect to the toner particles before being stored and an onset temperature T2 (° C.) of an endothermic peak having the lowest peak temperature in a first heating step with respect to the toner particles after being stored satisfies Expression (1): 2

公开(公告)号：US10100176B2

公开(公告)日：2018-10-16

申请号：US15207990

申请日：2016-07-12

申请人： FUJI XEROX CO., LTD.

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

IPC分类号： C08K9/06 ,  C08K3/36 ,  C08K9/08 ,  B29B7/00

摘要： A resin particle composition includes resin particles, inorganic particles surface-treated with oil, and silica particles having a compression aggregation degree of 60% to 95% and a particle compression ratio of 0.20 to 0.40.