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21.发明授权公开(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.
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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
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.
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公开(公告)号：US10081718B2
公开(公告)日：2018-09-25
申请号：US15218450
申请日：2016-07-25
申请人： FUJI XEROX CO., LTD.
发明人： Sakae Takeuchi , Hiroyoshi Okuno , Satoshi Inoue , Yoshifumi Iida , Tomohito Nakajima , Yuka Zenitani , Yoshifumi Eri , Yasuo Kadokura , Takeshi Iwanaga , Shunsuke Nozaki , Yasuhisa Morooka
CPC分类号： C08K3/36 , B29B7/005 , C08K3/013 , C08K3/24 , C08K9/08 , C08K2003/2213 , C08K2003/2227 , C08K2201/003 , C08K2201/016
摘要： A resin particle composition includes resin particles, polishing agent particles having an average circle-equivalent diameter of 0.1 μm to 3.0 μm, and silica particles having a compression aggregation degree of 60% to 95% and a particle compression ratio of 0.20 to 0.40.
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24.发明授权公开(公告)号：US09910372B2
公开(公告)日：2018-03-06
申请号：US15335972
申请日：2016-10-27
申请人： FUJI XEROX CO., LTD.
发明人： Moegi Iguchi , Sakon Takahashi , Takeshi Tanabe , Hiroshi Kamada , Yasuaki Hashimoto , Masaaki Usami , Yuka Zenitani , Yuta Saeki , Hiroaki Saijo
CPC分类号： G03G9/0819 , G03G9/0808 , G03G9/0827 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/0918 , G03G9/09716 , G03G9/09725 , G03G9/09791 , G03G9/1075 , G03G9/1133 , G03G15/0865
摘要： An electrostatic charge image developing toner includes: toner particles; first silica particles having an average circularity of 0.9 to 1.0, a particle size distribution index of 1.05 to 1.25, and a compression aggregation degree of 60% to 95%; and second silica particles having an average circularity of 0.9 to 1.0, a particle size distribution index of 1.05 to 1.25, and a compression aggregation degree of 60% to 95%, wherein, when an average primary particle diameter of the first silica particles is set as Da (nm) and an average primary particle diameter of the second silica particles is set as Db (nm), relationships of the following Expressions (A1) to (A3) are satisfied: Expression (A1): 80≦Da≦120, Expression (A2): 120≦Db≦200, and Expression (A3): 10≦Db−Da≦120.
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公开(公告)号：US09785069B2
公开(公告)日：2017-10-10
申请号：US15221290
申请日：2016-07-27
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
CPC分类号： G03G9/0827 , G03G9/0819 , G03G9/08711 , G03G9/08755 , G03G9/08793 , G03G9/09716 , G03G9/09725 , G03G15/08
摘要： An image forming apparatus includes a developing unit that contains an electrostatic charge image developer and develops an electrostatic charge image formed on the surface of an image holding member as a toner image by using the developer, wherein the developer contains a carrier and an electrostatic charge image developing toner that includes a toner particle and an external additive, the toner particles have an average circularity of from 0.98 to 1.00 and a number-particle diameter distribution index (lower GSD) on a small diameter side of 1.22 or more and contain at least a vinyl resin, and the external additive contains silica particles having a compression aggregation degree of 60% to 95% and a particle compression ratio of 0.20 to 0.40.
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公开(公告)号：US09394413B2
公开(公告)日：2016-07-19
申请号：US14264987
申请日：2014-04-29
申请人： FUJI XEROX CO., LTD.
发明人： Hideaki Yoshikawa , Yuka Zenitani , Hiroyoshi Okuno , Shunsuke Nozaki , Shinichiro Kawashima , Sakae Takeuchi , Yasuo Kadokura
CPC分类号： C08J3/128 , C08J2325/06 , C08J2367/03 , C08J2375/04 , G03G9/0804 , G03G9/0806 , G03G9/0819 , G03G9/0827 , G03G9/09716 , G03G9/09725 , Y10T428/2993 , Y10T428/2996
摘要： A resin particle having: a resin mother particle; and silica particles external added onto the surface of the resin mother particle, wherein a primary particles of the silica particles which have a volume average particle diameter of from 100 nm to 500 nm, a particle size distribution index of from 1.40 to 1.80 and an average circularity of from 0.5 to 0.85 has a regression line expressed by the following expression (1) with respect to the circularity and the volume average particle diameter (nm): Circularity=α×(Volume average particle diameter)/1000+β (1) wherein α is from −2.5 to −0.9, and β is from 0.8 to 1.2.
摘要翻译： 具有树脂母粒子的树脂粒子; 外部添加到树脂母粒表面的二氧化硅粒子，其中二氧化硅粒子的一次粒子的体积平均粒径为100nm〜500nm，粒径分布指数为1.40〜1.80，平均粒径为 圆形度为0.5〜0.85，具有圆形度和体积平均粒径（nm）的以下表达式（1）所表示的回归线：圆度=α×（体积平均粒径）/ 1000 +＆bgr; （1）其中α为-2.5至-0.9，＆bgr; 为0.8〜1.2。
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