公开(公告)号：US08512929B2

公开(公告)日：2013-08-20

申请号：US12879722

申请日：2010-09-10

申请人： Hitoshi Iwatsuki ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata ,  Toyoaki Tano

发明人： Hitoshi Iwatsuki ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata ,  Toyoaki Tano

IPC分类号： G03G9/00

CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1139 ,  G03G2215/0609

摘要： A latent electrostatic image developing carrier including a carrier core material, and a coating layer containing a resin and provided on a surface of the carrier core material, wherein the coating layer includes a particulate material containing at least first fine conductive particles and second fine conductive particles, and wherein the first fine conductive particles and the second fine conductive particles satisfy the relationships expressed by Expressions 1 and 2, 3≦D1/D2≦15 . . . Expression 1, where D1 denotes a dispersed particle diameter of the first fine conductive particles and D2 denotes a dispersed particle diameter of the second fine conductive particles, and −7E≦R1×R2≦8E . . . Expression 2, where R1 denotes a powder specific resistance of the first fine conductive particles and R2 denotes a powder specific resistance of the second fine conductive particles.

摘要翻译： 一种包含载体芯材的静电潜像显影载体和包含树脂的涂层，并且设置在载体芯材的表面上，其中涂层包括至少含有第一导电颗粒和第二导电颗粒的颗粒材料 ，并且其中所述第一细小导电颗粒和所述第二细导电颗粒满足由表达式1和2，3 @ D1 / D2 @ 15表示的关系。 。 。 表达式1，其中D1表示第一细小导电颗粒的分散粒径，D2表示第二细小导电颗粒的分散粒径，-7E @ R1×R2 @ 8E。 。 。 表达式2，其中R1表示第一细小导电颗粒的粉末电阻率，R2表示第二细导电颗粒的粉末电阻率。

公开(公告)号：US08431312B2

公开(公告)日：2013-04-30

申请号：US13128241

申请日：2009-11-10

申请人： Minoru Masuda ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Koichi Sakata ,  Hitoshi Iwatsuki

发明人： Minoru Masuda ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Koichi Sakata ,  Hitoshi Iwatsuki

IPC分类号： G03G9/00

CPC分类号： G03G9/107 ,  G03G9/1136 ,  G03G9/1137 ,  G03G9/1139

摘要： The present invention provides a carrier which includes core material particles, and a coating layer on surfaces of the core material particles, wherein the coating layer contains a crosslinked product which is obtained by condensation of a silicone resin with an organic zirconium catalyst, the silicone resin having at least one of a silanol group and a functional group capable of generating a silanol group by means of hydrolysis.

摘要翻译： 本发明提供一种载体，其包含芯材颗粒和在芯材颗粒的表面上的涂层，其中涂层含有通过硅树脂与有机锆催化剂的缩合获得的交联产物，硅树脂 具有硅烷醇基和通过水解产生硅烷醇基的官能团中的至少一种。

公开(公告)号：US08257896B2

公开(公告)日：2012-09-04

申请号：US12720958

申请日：2010-03-10

申请人： Minoru Masuda ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Toyoaki Tano

发明人： Minoru Masuda ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Toyoaki Tano

IPC分类号： G03G9/00

CPC分类号： G03G9/113 ,  G03G9/107 ,  G03G9/1136 ,  G03G9/1137

摘要： A carrier which is capable of avoiding excess blocking of the carrier particles at the time of forming a covering layer and is excellent in durability, a developer containing the carrier, and a developer container containing the developer, as well as an image forming method and a process cartridge which use the developer are provided. A carrier including at least a core material particle and a covering layer, a surface of the core material particle being covered with the covering layer, wherein the covering layer contains a condensate which is obtained by condensation of a silicone resin having at least one of a silanol group and a functional group which can be converted to the silanol group by hydrolysis, using a titanium diisopropoxy bis(ethylaceto-acetate) catalyst.

摘要翻译： 能够避免形成覆盖层时的载体颗粒的过度阻塞并且耐久性优异的载体，含有载体的显影剂和含有显影剂的显影剂容器，以及图像形成方法和 提供了使用显影剂的处理盒。 一种载体，其至少包括芯材颗粒和覆盖层，所述芯材颗粒的表面被覆盖层覆盖，其中所述覆盖层包含通过使具有至少一个 硅烷醇基和可以通过水解转化为硅烷醇基的官能团，使用二异丙氧基双（乙酰乙酸乙酯）催化剂。

公开(公告)号：US08104176B2

公开(公告)日：2012-01-31

申请号：US12210715

申请日：2008-09-15

申请人： Yutaka Takahashi ,  Koichi Sakata

发明人： Yutaka Takahashi ,  Koichi Sakata

IPC分类号： B21D53/00 ,  B21K1/02 ,  B23P17/00

CPC分类号： G03G15/0812 ,  G03G15/09 ,  Y10T29/49002 ,  Y10T29/49076 ,  Y10T29/49549 ,  Y10T29/49943

摘要： A method of manufacturing a developing agent regulating member is provided. The method includes providing a non-magnetic member and a magnetic member. The non-magnetic member and the magnetic member are fixed together by caulking such that an end face of the non-magnetic member and an end face of the magnetic member are substantially aligned with each other, and such that the non-magnetic member and the magnetic member are closely pressed together in order to reduce a gap between the non-magnetic member and the magnetic member. The end face of the non-magnetic member and the end face of the magnetic member are polished so as to prepare the regulating face of the developing agent regulating member by making the end face of the non-magnetic member and the end face of the magnetic member flush.

摘要翻译： 提供了一种制造显影剂调节元件的方法。 该方法包括提供非磁性部件和磁性部件。 非磁性构件和磁性构件通过铆接固定在一起，使得非磁性构件的端面和磁性构件的端面基本上彼此对准，并且使得非磁性构件和 磁性构件紧密地压在一起，以便减小非磁性构件和磁性构件之间的间隙。 对非磁性构件的端面和磁性构件的端面进行抛光，以便通过使非磁性构件的端面和磁性体的端面制成显影剂调节构件的调节面 会员齐平。

公开(公告)号：US08045892B2

公开(公告)日：2011-10-25

申请号：US12110055

申请日：2008-04-25

申请人： Koichi Sakata ,  Satoru Yoshida

发明人： Koichi Sakata ,  Satoru Yoshida

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G2215/0822

摘要： A developing unit used in an image forming apparatus with a latent image carrier includes a developer carrier, a supply compartment, a recovery compartment, a separation member, and a gap. The developer carrier facing the latent image carrier rotates while carrying two-component developer containing toner and carrier and supplies the toner to the latent image. The supply compartment includes a supply transport member to transport the developer in a first direction. The recovery compartment includes a recovery transport member to transport the developer in a second direction. The separation member includes one end portion facing the latent image carrier at a facing area. The separation member separates the supply compartment and the recovery compartment and is disposed above the recovery compartment behind the separation member. The gap is provided at the facing area. The gap has a width of not more than 1.4 millimeters.

摘要翻译： 在具有潜像载体的图像形成装置中使用的显影单元包括显影剂载体，供给室，回收室，分离构件和间隙。 面向潜像载体的显影剂载体在承载含有调色剂和载体的双组分显影剂的同时旋转，并将调色剂供应给潜像。 供应隔室包括用于沿第一方向输送显影剂的供应输送构件。 回收室包括用于沿第二方向输送显影剂的回收输送构件。 分离构件包括在面对区域处面对潜像载体的一个端部。 分离构件分离供给室和回收室，并且设置在分离构件后面的回收室上方。 在面对区域提供间隙。 间隙宽度不大于1.4毫米。

公开(公告)号：US20110065037A1

公开(公告)日：2011-03-17

申请号：US12879722

申请日：2010-09-10

申请人： Hitoshi Iwatsuki ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata ,  Toyoaki Tano

发明人： Hitoshi Iwatsuki ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata ,  Toyoaki Tano

IPC分类号： G03G9/113 ,  G03G9/08 ,  G03G13/08

CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1139 ,  G03G2215/0609

摘要： A latent electrostatic image developing carrier including a carrier core material, and a coating layer containing a resin and provided on a surface of the carrier core material, wherein the coating layer includes a particulate material containing at least first fine conductive particles and second fine conductive particles, and wherein the first fine conductive particles and the second fine conductive particles satisfy the relationships expressed by Expressions 1 and 2, 3≦D1/D2≦15 . . . Expression 1, where D1 denotes a dispersed particle diameter of the first fine conductive particles and D2 denotes a dispersed particle diameter of the second fine conductive particles, and −7E≦R1×R2≦8E . . . Expression 2, where R1 denotes a powder specific resistance of the first fine conductive particles and R2 denotes a powder specific resistance of the second fine conductive particles.

摘要翻译： 一种包含载体芯材的静电潜像显影载体和包含树脂的涂层，并且设置在载体芯材的表面上，其中涂层包括至少含有第一导电颗粒和第二导电颗粒的颗粒材料 并且其中所述第一细小导电颗粒和所述第二细导电颗粒满足表达式1和2，3＆lt; N1; D1 / D2＆nlE; 15表示的关系。 。 。 表达式1，其中D1表示第一微细导电颗粒的分散粒径，D2表示第二细小导电颗粒的分散粒径，-7E＆lt; N1; R1×R2＆nlE; 8E。 。 。 表达式2，其中R1表示第一细小导电颗粒的粉末电阻率，R2表示第二细导电颗粒的粉末电阻率。

公开(公告)号：US07835677B2

公开(公告)日：2010-11-16

申请号：US12402086

申请日：2009-03-11

申请人： Koichi Sakata ,  Tomio Kondou ,  Shinichiro Yagi

发明人： Koichi Sakata ,  Tomio Kondou ,  Shinichiro Yagi

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1139 ,  G03G15/0822 ,  G03G2215/0609 ,  G03G2215/0888

摘要： Provided is a developing device containing a two-component developer including a magnetic carrier and a toner; a developer bearing member containing a nonmagnetic developing sleeve configured to bear the two-component developer on a surface thereof while rotating; a magnetic field generating unit fixed inside of the nonmagnetic developing sleeve; and a developer amount control member configured to control an amount of the two-component developer borne on the developer bearing member. The magnetic carrier contains a core material and a coating layer coated on the core material, and the coating layer containing a binder resin and conductive particles. The magnetic carrier satisfy a ratio D/h of 1.00

摘要翻译： 本发明提供含有包含磁性载体和调色剂的双组分显影剂的显影装置; 包含非磁性显影套筒的显影剂承载构件，其构造成在旋转的同时在其表面上承载双组分显影剂; 固定在非磁性显影套筒内部的磁场产生单元; 以及显影剂量控制部件，其构造成控制承载在显影剂承载部件上的双组分显影剂的量。 磁性载体包含核心材料和涂覆在芯材上的涂层，所述涂层含有粘合剂树脂和导电颗粒。 磁性载体满足1.00 <[D / h]＆nlE; 1.95的比率D / h，其中D表示导电细颗粒的平均一次粒径，h表示涂层的厚度，Ra / D为1.0 <[Ra / D] <10.0，其中Ra表示显影套筒的表面粗糙度。

公开(公告)号：US20080317508A1

公开(公告)日：2008-12-25

申请号：US12135413

申请日：2008-06-09

申请人： Junichi TERAI ,  Koichi Kato ,  Koichi Sakata ,  Maiko Koeda ,  Kentaroh Tomita ,  Kiyonori Tsuda

发明人： Junichi TERAI ,  Koichi Kato ,  Koichi Sakata ,  Maiko Koeda ,  Kentaroh Tomita ,  Kiyonori Tsuda

IPC分类号： G03G15/08

CPC分类号： G03G15/0844 ,  G03G15/0815 ,  G03G2215/0838

摘要： A developing device capable of conveying discharged developer to the outside of the device well by preventing developer from firmly adhering within a discharge conveyance path, as well as an image forming apparatus and a process cartridge having this developing device. A developing device, having: a developing roller; a developer conveyance path having a supply screw and a supply conveyance path; a toner replenishment controller for replenishing the developer to the developer conveyance path; a discharge conveyance path for conveying the developer to the outside of the developing device; a discharge screw serving as a discharge conveying member for applying a conveying force to the developer within the discharge conveyance path; and a developer discharge port serving as developer discharge means for discharging the developer to the discharge conveyance path, wherein the conveying force is applied to the discharged developer intermittently by the discharge screw serving as a discharge conveying member, whereby a shock is applied intermittently to the discharged developer within the discharge conveyance path.

摘要翻译： 一种能够通过防止显影剂在排出输送路径内牢固地附着而将排出的显影剂输送到装置外部的显影装置，以及具有该显影装置的图像形成装置和处理盒。 一种显影装置，具有：显影辊; 具有供给螺杆和供给输送路径的显影剂输送路径; 用于将显影剂补充到显影剂传送路径的调色剂补充控制器; 用于将显影剂输送到显影装置的外部的排出输送路径; 排出螺杆，用作用于在排出输送路径内向显影剂施加输送力的排出传送部件; 以及作为用于将显影剂排出到排出输送路径的显影剂排出装置的显影剂排出口，其中通过作为排出传送构件的排出螺杆将间歇地施加到排出的显影剂的输送力，从而间歇地施加到 在排出输送路径内排出显影剂。

公开(公告)号：US20080063433A1

公开(公告)日：2008-03-13

申请号：US11853490

申请日：2007-09-11

申请人： Satoru MIYAMOTO ,  Koichi Sakata ,  Maiko Koeda ,  Kiyonori Tsuda

发明人： Satoru MIYAMOTO ,  Koichi Sakata ,  Maiko Koeda ,  Kiyonori Tsuda

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0609 ,  G03G2215/0619

摘要： A developing device and image forming apparatus that can satisfy stability over time in relation to amount of developer carried, and prevent developer retention, deterioration of developer and developing sleeve adhesion, wherein the amount of developer carried per unit area on the developer carrier in the developing region is 30 [mg/cm2] to 60 [mg/cm2]; the weight mean particle diameter of the toner is 4.5 [μm] to 8.0 [μm]; the ratio [Dw/Dn] of the toner weight mean particle diameter (Dw) and the number mean particle diameter (Dn) is 1.20 or less; an irregular roughness pattern having the maximum height Rz of the surface roughness of 20 to 40 [μm] and the mean space Sm of the roughness of 100 to 200 [μm] is formed on the surface of the developer carrier; and the relationship between the developing gap PG and the gap DG between the developer restricting member and the developer carrier is 1.0≦(DG/PG)3.0≦.

摘要翻译： 一种显影装置和图像形成装置，其能够随着时间的推移相对于所携带的显影剂的量而满足稳定性，并且防止显影剂滞留，显影剂的劣化和显影套筒粘附，其中显影剂载体上显影剂承载量在显影剂 区域为30 [mg / cm 2]至60 [mg / cm 2]; 调色剂的重均粒径为4.5μm至8.0μm; 调色剂重量平均粒径（Dw）与数均粒径（Dn）的比[Dw / Dn]为1.20以下， 在显影剂载体的表面上形成表面粗糙度最大高度Rz为20〜40μm，粗糙度平均空间Sm为100〜200μm的不规则粗糙图案。 并且显影间隙PG与显影剂限制构件和显影剂载体之间的间隙DG之间的关系为1.0 <=（DG / PG）3.0 <=。

公开(公告)号：US10444651B2

公开(公告)日：2019-10-15

申请号：US15911443

申请日：2018-03-05

申请人： Mariko Takii ,  Koichi Sakata ,  Tohru Suganuma ,  Masahiro Seki ,  Masashi Nagayama ,  Toyoaki Tano ,  Kohsuke Miyazaki

发明人： Mariko Takii ,  Koichi Sakata ,  Tohru Suganuma ,  Masahiro Seki ,  Masashi Nagayama ,  Toyoaki Tano ,  Kohsuke Miyazaki

IPC分类号： G03G9/107 ,  G03G9/113 ,  G03G15/08 ,  G03G15/00

摘要： A carrier is provided including a core particle and a resin layer coating the surface of the core particle. The resin layer includes fine metal particles, and a detected metal element amount A obtained by X-ray photoelectron spectrometry of the surface of the carrier is in a range of 4.0 atomic %≤A≤20.0 atomic % and an average major-axis length B of the fine metal particle exposing from the resin layer is in a range of 100 nm≤B≤800 nm.