公开(公告)号：US09835967B2

公开(公告)日：2017-12-05

申请号：US15367654

申请日：2016-12-02

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： Kasturi Rangan Srinivasan ,  Michael Anthony Blassingame

IPC: G03G9/00 ,  G03G9/113 ,  G03G9/107 ,  G03G9/09 ,  G03G9/08

CPC classification number: G03G9/1138 ,  G03G9/0804 ,  G03G9/0808 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/0918 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133 ,  G03G9/1135 ,  G03G9/1136 ,  G03G9/1139

Abstract: A developer mix used in a dual component development (DCD) system is a mixture of toner particles and magnetic carrier particles, wherein the magnetic carrier particle is surface treated with a hydrophobized titania particle. The surface treatment with a hydrophobized titania particle may be selected from either a spherical, disk, or spindle shaped. Tribocharge of the toner and the toner charge stability across cartridge life or environments may be suitably modified by selecting a preferred size and shape of the hydrophobized titania.

公开(公告)号：US09829819B2

公开(公告)日：2017-11-28

申请号：US14488969

申请日：2014-09-17

Applicant: FUJI XEROX CO., LTD.

Inventor： Hiroko Kobayashi

IPC: G03G13/20 ,  G03G9/09 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G21/18

CPC classification number: G03G9/092 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/0906 ,  G03G9/091 ,  G03G9/0918 ,  G03G9/09708 ,  G03G21/18 ,  G03G2215/025 ,  G03G2215/0604

Abstract: A toner set for electrostatic image development includes a cyan toner, a magenta toner, and a yellow toner, wherein the Vicat softening temperatures of the toners are respectively in the range of from about 30° C. to about 60° C., and among the toners, the difference between the Vicat softening temperature of the toner having the highest Vicat softening temperature and the Vicat softening temperature of the toner having the lowest Vicat softening temperature is from about 1° C. to about 5° C.

公开(公告)号：US20170315461A1

公开(公告)日：2017-11-02

申请号：US15495196

申请日：2017-04-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Nozomu Komatsu ,  Takeshi Hashimoto ,  Masayuki Hama ,  Takakuni Kobori ,  Ichiro Kanno ,  Yuto Onozaki ,  Hitoshi Sano ,  Akifumi Matsubara ,  Hiroyuki Fujikawa ,  Tsubasa Fujisaki

IPC: G03G9/087 ,  G03G9/097 ,  G03G9/08 ,  G03G9/09

CPC classification number: G03G9/08755 ,  G03G9/0804 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0918 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

Abstract: A toner comprising a toner particle containing a binder resin, a wax, and inorganic fine particles, wherein the binder resin contains a crystalline polyester resin and an amorphous polyester resin, and, in a cross section of the toner particle, when Sc represents an area taken up by the crystalline polyester resin and S1 represents an area taken up by the inorganic fine particles that are present in the crystalline polyester resin portion, Sc and S1 satisfy the relationship S1/Sc≧0.2.

公开(公告)号：US20170315460A1

公开(公告)日：2017-11-02

申请号：US15344414

申请日：2016-11-04

Applicant: FUJI XEROX CO., LTD.

Inventor： Takeshi TANABE ,  Sakon TAKAHASHI ,  Yasuaki HASHIMOTO ,  Masaaki USAMI ,  Yuka ZENITANI ,  Hiroshi KAMADA ,  Moegi IGUCHI ,  Yuta SAEKI ,  Hiroaki SAIJO

IPC: G03G9/08 ,  G03G9/113 ,  G03G9/09 ,  G03G9/087 ,  G03G15/08 ,  G03G9/107

CPC classification number: G03G9/0819 ,  G03G9/0827 ,  G03G9/0872 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0918 ,  G03G9/09725 ,  G03G9/09791 ,  G03G9/1075 ,  G03G9/1133 ,  G03G15/0867

Abstract: An electrostatic charge image developing toner includes toner particles, silica particles having an average particle diameter of 80 nm to 200 nm, lubricant particles N which has negatively chargeable property, and lubricant particles P which has positively chargeable property, wherein a content (s) of the silica particles, a content (n) of the lubricant particles N, and a content (p) of the lubricant particles P satisfy relationships of Expression (1): 0.002≦p/s≦0.2; and Expression (2): 0.02≦n/s≦0.5.

公开(公告)号：US20170199474A1

公开(公告)日：2017-07-13

申请号：US15393455

申请日：2016-12-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tsutomu Shimano ,  Kunihiko Nakamura ,  Kenta Kamikura ,  Yuichi Yajima ,  Kenji Ookubo ,  Dai Nozaki ,  Tohru Hiramatsu

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

CPC classification number: G03G9/0812 ,  G03G9/0806 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/0918 ,  G03G9/09708

Abstract: Provided is a method of producing a toner including a toner particle, the method including: a granulation step of mixing a polymerizable monomer composition containing a polymerizable monomer and an aqueous medium to form a suspension of particles of the polymerizable monomer composition; and a polymerization step of polymerizing the polymerizable monomer in each of the particles of the polymerizable monomer composition in the presence of a metal phosphate containing aluminum as a metal element to provide the toner particle, the content ratio of aluminum in the metal phosphate containing aluminum being 1.0 mol % or more and 95.0 mol % or less with respect to all metal elements, the metal phosphate containing aluminum being obtained by adding an aluminum compound to the aqueous medium and/or the suspension.

公开(公告)号：US20170123332A1

公开(公告)日：2017-05-04

申请号：US15274304

申请日：2016-09-23

Applicant: Konica Minolta, Inc.

Inventor： Satoshi UCHINO ,  Shinya OBARA ,  Futoshi KADONOME ,  Noriyuki KIMPARA ,  Ikuko SAKURADA ,  Takuya TAKAHASHI

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

CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0918 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09791

Abstract: The toner of the present invention contains: a toner base particle, and a silica particle and a fatty acid metal salt particle adhering to a surface of the toner base particle. The toner base particle contains a crystalline polyester resin and an amorphous polyester resin. The toner particle has an average circularity of 0.945 to 0.965. The silica particle has a volume average particle size of 70 to 300 nm, and has an average circularity of 0.5 to 0.9. The fatty acid metal salt particle has a median diameter based on a volume of 0.50 to 2.00 μm.

公开(公告)号：US09625845B2

公开(公告)日：2017-04-18

申请号：US14787460

申请日：2014-04-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ayano Mashida ,  Yasuaki Murai ,  Waka Hasegawa ,  Masanori Seki ,  Takayuki Toyoda ,  Masashi Kawamura ,  Chiaki Nishiura ,  Yuki Tsujii ,  Taiki Watanabe ,  Masashi Hirose

IPC: C08F8/34 ,  G03G9/09 ,  C09D17/00 ,  G03G9/087 ,  C09B29/33 ,  C09B33/153 ,  C09B69/10

CPC classification number: G03G9/091 ,  C08F8/34 ,  C09B29/337 ,  C09B33/153 ,  C09B69/106 ,  C09D17/00 ,  G03G9/087 ,  G03G9/09 ,  G03G9/0904 ,  G03G9/0918 ,  G03G9/092 ,  G03G9/0924

Abstract: The present invention provides a compound capable of improving the dispersibility of yellow, magenta, cyan, and black pigments in a water-insoluble solvent and a pigment-dispersing agent. The present invention also provides a pigment composition, a pigment dispersion, and a toner, which have satisfactory tinting strength. The present invention relates to a compound having a structure in which an azo skeleton structure is bound to a polymer portion via a linking group in the azo skeleton structure.

公开(公告)号：US20170038699A1

公开(公告)日：2017-02-09

申请号：US15251381

申请日：2016-08-30

Applicant: FUJI XEROX CO., LTD.

Inventor： Satoshi TATSUURA ,  Keitaro MORI ,  Kazunari KOMATSUZAKI ,  Yutaka NOGAMI

IPC: G03G9/135 ,  G03G15/10 ,  G03G9/09 ,  G03G9/125 ,  G03G9/087

CPC classification number: G03G9/1355 ,  G03G9/08755 ,  G03G9/08768 ,  G03G9/0918 ,  G03G9/125 ,  G03G13/10 ,  G03G15/10

Abstract: A liquid developer includes a toner in which a compound having a charge-accepting functional group has been bonded to a surface of toner particles, and a carrier liquid which makes a charge density of a surface of the toner become 1 μC/m2 or less when the toner is dispersed in the carrier liquid.

Abstract translation: 液体显影剂包括其中具有电荷接受官能团的化合物已经结合到调色剂颗粒的表面的调色剂和使得调色剂表面的电荷密度为1μC/ m 2或更小的载液，当 调色剂分散在载液中。

公开(公告)号：US20160179022A1

公开(公告)日：2016-06-23

申请号：US14580830

申请日：2014-12-23

Applicant: Lexmark International, Inc.

Inventor： Kasturi Rangan Srinivasan ,  Ligia Aura Bejat ,  Michael Anthony Blassingame ,  Rick Owen Jones ,  Brandon Michael Lin ,  James Craig Minor

IPC: G03G9/08 ,  G03G9/107 ,  G03G9/113

CPC classification number: G03G9/1139 ,  G03G9/0804 ,  G03G9/0808 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/0819 ,  G03G9/0918 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133 ,  G03G9/1134 ,  G03G9/1135 ,  G03G9/1136

Abstract: A method for providing a developer mix having tribocharge uniformity across varying temperature and humidity conditions is provided. A developer mix used in a dual component development (DCD) system typically is a mixture of toner particles and magnetic carrier particles. Tribocharge uniformity is achieved in the developer mix by performing the step of treating the surface of the magnetic carrier particles with surface additives before the magnetic carrier particles are mixed with the toner particles. Surface additives include but are not limited to silica, titania and alumina.

Abstract translation: 提供了一种在不同的温度和湿度条件下提供具有摩擦放电一致性的显影剂混合物的方法。 用于双组分显影（DCD）系统的显影剂混合物通常是调色剂颗粒和磁性载体颗粒的混合物。 通过在磁性载体颗粒与调色剂颗粒混合之前执行用表面添加剂处理磁性载体颗粒的表面的步骤，在显影剂混合物中实现摩擦带电均匀性。 表面添加剂包括但不限于二氧化硅，二氧化钛和氧化铝。

公开(公告)号：US20150248074A1

公开(公告)日：2015-09-03

申请号：US14625143

申请日：2015-02-18

Applicant: Kazumi Suzuki ,  Hisashi Nakajima ,  Masashi Nagayama ,  Saori Yamada ,  Yoshitaka Yamauchi ,  Yu Naito

Inventor： Kazumi Suzuki ,  Hisashi Nakajima ,  Masashi Nagayama ,  Saori Yamada ,  Yoshitaka Yamauchi ,  Yu Naito

IPC: G03G9/00

CPC classification number: G03G9/0821 ,  G03G9/0904 ,  G03G9/0914 ,  G03G9/0918 ,  G03G9/092 ,  G03G9/0924 ,  G03G9/0926

Abstract: A red toner for developing an electrostatic latent image includes a colorant and a binder resin. An image produced by the red toner has a hue angle (H) of from 36 to 50° in L*a*b* color system, a lightness (L*) of from 47 to 55, and a chroma (c*) of from 94 to 108.

Abstract translation: 用于显影静电潜像的红色调色剂包括着色剂和粘合剂树脂。 由红色调色剂产生的图像在L * a * b *色系中具有36至50°的色调角（H），从47至55的亮度（L *）和色度（C *）为 从94到108。