公开(公告)号：US20180120724A1

公开(公告)日：2018-05-03

申请号：US15568947

申请日：2016-04-28

申请人： Koichi SAKATA ,  Tohru SUGANUMA ,  Shohichi SUGIMOTO ,  Hiroshi TOHMATSU ,  Hiroyuki KISHIDA ,  Kenichi MASHIKO ,  Toyoaki TANO

发明人： Koichi SAKATA ,  Tohru SUGANUMA ,  Shohichi SUGIMOTO ,  Hiroshi TOHMATSU ,  Hiroyuki KISHIDA ,  Kenichi MASHIKO ,  Toyoaki TANO

IPC分类号： G03G9/113

CPC分类号： G03G9/1139 ,  G03G9/1136 ,  G03G9/1137

摘要： A carrier including a resin layer including at least one kind of particles, wherein the at least one kind of the particles are particles of barium sulfate, wherein an amount of Ba detected is 0.3 atomic % or greater in a Ba analysis through X-ray photo-electron spectroscopy (XPS) of the carrier, and wherein circle-equivalent diameters of the particles of the barium sulfate are 400 nm or greater but 900 nm or smaller.

公开(公告)号：US20170329247A1

公开(公告)日：2017-11-16

申请号：US15522306

申请日：2015-09-29

申请人： Yoshihiro MURASAWA ,  Hiroshi TOHMATSU ,  Hitoshi IWATSUKI ,  Mariko TAKII ,  Koichi SAKATA ,  Hiroyuki KISHIDA ,  Toyoaki TANO ,  Kenichi MASHIKO

发明人： Yoshihiro MURASAWA ,  Hiroshi TOHMATSU ,  Hitoshi IWATSUKI ,  Mariko TAKII ,  Koichi SAKATA ,  Hiroyuki KISHIDA ,  Toyoaki TANO ,  Kenichi MASHIKO

IPC分类号： G03G9/107 ,  G03G15/01 ,  G03G9/113 ,  G03G9/08 ,  G03G9/09 ,  G03G9/087 ,  G03G15/08

CPC分类号： G03G9/1075 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0902 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1139

摘要： Provided is an electrostatic latent image developing white toner, including: a white toner including at least a binder resin, a white pigment, and a release agent; and a magnetic carrier including at least a core material, and a coating layer coating the core material and made of a coating resin and conductive particles, wherein Ra of the magnetic carrier is in a range of from 0.50 μm to 1.00 μm, and a bulk density of the magnetic carrier is in a range of from 2.08 g/cm3 to 2.24 g/cm3.

公开(公告)号：US20170248871A1

公开(公告)日：2017-08-31

申请号：US15511291

申请日：2015-08-31

申请人： Hitoshi IWATSUKI ,  Koichi SAKATA ,  Hiroshi TOHMATSU ,  Toyoaki TANO ,  Kenichi MASHIKO ,  Mariko TAKII ,  Hiroyuki KISHIDA ,  Yoshihiro MURASAWA ,  Keinosuke KONDOH ,  Toshio KOIKE ,  Yutaka TAKAHASHI

发明人： Hitoshi IWATSUKI ,  Koichi SAKATA ,  Hiroshi TOHMATSU ,  Toyoaki TANO ,  Kenichi MASHIKO ,  Mariko TAKII ,  Hiroyuki KISHIDA ,  Yoshihiro MURASAWA ,  Keinosuke KONDOH ,  Toshio KOIKE ,  Yutaka TAKAHASHI

IPC分类号： G03G15/09

CPC分类号： G03G15/0928 ,  G03G9/1136 ,  G03G9/1139 ,  G03G15/065 ,  G03G15/0907

摘要： A developing device, including: a developer containing toner and carrier; and developer bearer configured to have surface thereof bear the developer and endlessly move, and to develop latent image over surface of latent image bearer by supplying toner in developer to latent image in developing region facing the latent image bearer, wherein carrier contains fine particles, value X in volume resistivity R (=10X) (Ω·cm) of carrier is 11.5-16.0, developer bearer includes: magnetic field generating unit including a plurality of magnetic poles; and developing sleeve having a cylindrical shape enclosing magnetic field generating unit, and configured to bear developer over outer circumferential surface of cylindrical shape by magnetic force of the magnetic field generating unit and perform surface moving by rotating relative to developing device body, and developing device includes developing sleeve voltage applying unit configured to apply AC component-containing voltage to developing sleeve.

公开(公告)号：US20140348552A1

公开(公告)日：2014-11-27

申请号：US14279595

申请日：2014-05-16

申请人： Hitoshi Iwatsuki ,  Shigenori YAGUCHI ,  Hiroshi TOHMATSU ,  Toyoaki TANO ,  Hiroyuki KISHIDA ,  Kenichi MASHIKO ,  Koichi SAKATA ,  Hiroshi HOSOKAWA ,  Shunji KATOH ,  Shinji TAMAKI ,  Hiroshi IKEGUCHI ,  Kenji KIKUCHI ,  Michiharu SUZUKI

发明人： Hitoshi Iwatsuki ,  Shigenori YAGUCHI ,  Hiroshi TOHMATSU ,  Toyoaki TANO ,  Hiroyuki KISHIDA ,  Kenichi MASHIKO ,  Koichi SAKATA ,  Hiroshi HOSOKAWA ,  Shunji KATOH ,  Shinji TAMAKI ,  Hiroshi IKEGUCHI ,  Kenji KIKUCHI ,  Michiharu SUZUKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0877 ,  G03G15/0872

摘要： A replenishing developer housing container according to the present invention includes: a container body housing a replenishing developer; a conveying portion; a pipe receiving port; and an uplifting portion, wherein the replenishing developer contains a toner and a carrier, wherein the container body includes a protruding portion protruding from a container body interior side of the container opening portion toward one end of the container body and a curving portion curving so as to conform to the protruding portion, wherein the uplifting portion includes an uplifting wall surface extending from an internal wall surface of the container body toward the protruding portion, wherein the protruding portion is provided such that when the replenishing developer housing container is mounted on the replenishing developer conveying device, the protruding portion is present between the curving portion and the replenishing developer receiving port of a conveying pipe being inserted.

摘要翻译： 根据本发明的补充显影剂容纳容器包括：容纳补充显影剂的容器主体; 输送部; 管道接收口; 以及升起部，其中所述补充显影剂含有调色剂和载体，其中所述容器主体包括从所述容器开口部的容器主体内侧朝向所述容器主体的一端突出的突出部，弯曲部弯曲为 以使其与突出部分一致，其中提升部分包括从容器主体的内壁表面朝向突出部分延伸的提升壁表面，其中突出部分设置成使得当补充显影剂容纳容器安装在补充 显影剂输送装置，突出部分存在于插入的输送管的弯曲部分和补充显影剂接收口之间。

公开(公告)号：US20140227638A1

公开(公告)日：2014-08-14

申请号：US14107522

申请日：2013-12-16

申请人： Hiroyuki KISHIDA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Kenichi Mashiko

发明人： Hiroyuki KISHIDA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Kenichi Mashiko

IPC分类号： G03G9/113 ,  G03G13/08

CPC分类号： G03G13/08 ,  G03G9/1131 ,  G03G9/1136 ,  G03G9/1139 ,  G03G15/0818

摘要： A carrier for use in a two-component developer for developing an electrostatic latent image is provided. The carrier includes a particulate magnetic core; and a cover layer located on a surface of the particulate magnetic core and including a resin and a particulate electroconductive material. The carrier has a BET specific surface area of from 0.8 to 1.6 m2/g.

摘要翻译： 提供了用于显影静电潜像的双组分显影剂中的载体。 载体包括颗粒状磁芯; 以及位于所述颗粒状磁芯的表面上并且包括树脂和颗粒状导电材料的覆盖层。 载体的BET比表面积为0.8〜1.6m 2 / g。

公开(公告)号：US20140080052A1

公开(公告)日：2014-03-20

申请号：US13960965

申请日：2013-08-07

申请人： Shigenori YAGUCHI ,  Hiroshi TOHMATSU ,  Koichi SAKATA ,  Hitoshi IWATSUKI ,  Hiroyuki KISHIDA ,  Toyoaki TANO ,  Kenichi MASHIKO

发明人： Shigenori YAGUCHI ,  Hiroshi TOHMATSU ,  Koichi SAKATA ,  Hitoshi IWATSUKI ,  Hiroyuki KISHIDA ,  Toyoaki TANO ,  Kenichi MASHIKO

IPC分类号： G03G9/00

CPC分类号： G03G15/0928 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1136 ,  G03G9/1139

摘要： A carrier for developing electrostatic latent images produced in an image developer includes a magnetic particulate core material and a covering layer covering the surface of the core material. The image developer includes an image bearer, a developer bearer including comprising a magnetic field generator inside and a developer regulation member facing the surface of the image developer with a predetermined gap. The carrier has a bulk density of from 1.6 to 2.25 g/cm3, a BET specific surface area of from 0.5 to 2.0 m3/g, a saturated magnetization (σ5000) not less than 70 emu/g at 5 kOe, and a residual magnetization (σr) not greater than 2 emu/g.

摘要翻译： 用于显影图像显影剂中产生的静电潜像的载体包括磁性颗粒芯材和覆盖芯材表面的覆盖层。 图像显影器包括图像载体，包括内部的磁场发生器的显影剂载体和面向图像显影剂的表面的显影剂调节构件，具有预定的间隙。 载体的体积密度为1.6-2.25g / cm3，BET比表面积为0.5-2.0m3 / g，5kOe时的饱和磁化强度（＆sgr; 5000）不小于70emu / g， 剩余磁化强度（＆sgr。r）不大于2emu / g。

公开(公告)号：US20170269497A1

公开(公告)日：2017-09-21

申请号：US15449572

申请日：2017-03-03

申请人： Yoshihiro MURASAWA ,  Toyoaki TANO ,  Hiroyuki KISHIDA ,  Masato TAIKOJI ,  Kenichi MASHIKO ,  Mariko TAKII ,  Haruki MURATA

发明人： Yoshihiro MURASAWA ,  Toyoaki TANO ,  Hiroyuki KISHIDA ,  Masato TAIKOJI ,  Kenichi MASHIKO ,  Mariko TAKII ,  Haruki MURATA

IPC分类号： G03G9/00 ,  G03G9/113 ,  G03G9/087 ,  G03G9/09 ,  G03G9/107 ,  G03G9/08

CPC分类号： G03G9/1075 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/091 ,  G03G9/0926 ,  G03G9/107 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1139 ,  G03G15/08 ,  G03G2215/0607

摘要： A carrier for developing electrostatic latent images is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a particulate material A having a volume average particle diameter (a) and a particulate material B having a volume average particle diameter (b). The volume average particle diameter (a) of the particulate material A is the largest among volume average particle diameters of all particulate materials included in the resin layer, and an inequation 100≧(a)/(b)≧5 is satisfied. The particulate material A is barium sulfate.

公开(公告)号：US20200183297A1

公开(公告)日：2020-06-11

申请号：US16305196

申请日：2017-05-26

申请人： Haruki MURATA ,  Hiroyuki KISHIDA ,  Toyoaki TANO ,  Kenichi MASHIKO ,  Masato TAIKOJI ,  Mariko TAKII ,  Yoshihiro MURASAWA

发明人： Haruki MURATA ,  Hiroyuki KISHIDA ,  Toyoaki TANO ,  Kenichi MASHIKO ,  Masato TAIKOJI ,  Mariko TAKII ,  Yoshihiro MURASAWA

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

摘要： A carrier for developing an electrostatic latent image includes a core material particle and a resin layer covering a surface of the core material particle. The resin layer includes a resin and at least one kind of a fine particle. At least one kind of the fine particles includes a chargeable fine particle. The chargeable fine particle has a long diameter of 400 to 900 nm. The chargeable fine particle has a shape factor SF-1 of 160 to 250.

公开(公告)号：US20170205721A1

公开(公告)日：2017-07-20

申请号：US15397522

申请日：2017-01-03

申请人： Yoshihiro MURASAWA ,  Koichi SAKATA ,  Masashi NAGAYAMA ,  Toyoaki TANO ,  Hiroyuki KISHIDA

发明人： Yoshihiro MURASAWA ,  Koichi SAKATA ,  Masashi NAGAYAMA ,  Toyoaki TANO ,  Hiroyuki KISHIDA

IPC分类号： G03G9/00

CPC分类号： G03G9/0831 ,  G03G9/1075 ,  G03G9/1136 ,  G03G9/1137 ,  G03G9/1139 ,  G03G15/08 ,  G03G15/0808 ,  G03G2215/0607

摘要： A carrier is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a resin, a conductive particle including tungsten tin oxide, and a chargeable filler.

公开(公告)号：US20130004209A1

公开(公告)日：2013-01-03

申请号：US13526095

申请日：2012-06-18

申请人： Hiroyuki KISHIDA ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Toyoaki Tano ,  Koichi Sakata

发明人： Hiroyuki KISHIDA ,  Shigenori Yaguchi ,  Toyoshi Sawada ,  Toyoaki Tano ,  Koichi Sakata

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G9/1075 ,  G03G9/1136 ,  G03G9/1139 ,  G03G2215/0609

摘要： A developing device including a developer container and a developer bearing member is provided. The developer container contains a two-component developer comprising toner particles and magnetic carrier particles having a ten-point average surface roughness Rz of 0.5 to 3.0 μm. The developer bearing member is a cylindrical member containing a magnetic field generator having multiple magnetic poles. The developer bearing member is adapted to bear the two-component developer on a surface thereof and to convey the two-component developer as the surface rotates. The developer bearing member has a ten-point average surface roughness Rz of 10 to 30 μm. The multiple magnetic poles include three developer bearing poles each adapted to generate a magnetic field having a strength enough for retaining the two-component developer on a surface of the developer bearing member. The three developer bearing poles consist of a developing pole, a pre-developing pole, and a post-developing pole.

摘要翻译： 提供了包括显影剂容器和显影剂承载部件的显影装置。 显影剂容器含有包含调色剂颗粒和磁性载体颗粒的双组分显影剂，其十点平均表面粗糙度Rz为0.5-3.0μm。 显影剂承载构件是包含具有多个磁极的磁场发生器的圆柱形构件。 显影剂承载构件适于在其表面上承载双组分显影剂并且在表面旋转时输送双组分显影剂。 显影剂承载部件的十点平均表面粗糙度Rz为10〜30μm。 多个磁极包括三个显影剂承载极，每个显影剂承载极适于产生具有足以将双组分显影剂保持在显影剂承载部件的表面上的强度的磁场。 三个显影轴承杆由一个显影极，一个前显影极和一个后显影极组成。