公开(公告)号：US20140023966A1

公开(公告)日：2014-01-23

申请号：US13932368

申请日：2013-07-01

申请人： Toyoshi SAWADA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Yumiko Yagi

发明人： Toyoshi SAWADA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Yumiko Yagi

IPC分类号： G03G9/113

CPC分类号： G03G9/1136 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139

摘要： A carrier for developing electrostatic latent images includes a core material; and a covering layer formed of a resin comprising an electroconductive particulate material, overlying the core material, wherein the covering layer includes the electroconductive particulate material in an amount of from 58 to 73% by weight and has a resistivity of from 6.6 to 8.6 Ωcm, and wherein the carrier has a high-brightness contrast part at an areal ratio less than 1% and 40 to 90% based on total area thereof at an acceleration voltage of 0.8 KV and 2.0 KV, respectively in an FE-SEM reflection electron image of the surface thereof.

摘要翻译： 用于显影静电潜像的载体包括芯材料; 以及由包括导电性颗粒材料的树脂形成的覆盖层，覆盖在所述芯材料上，其中所述覆盖层包含58-73重量％的导电性颗粒材料，并且电阻率为6.6至8.6Ωmacm， 并且其中所述载体具有相对于其在0.8KV和2.0KV的加速电压下的总面积小于1％和40至90％的面积率的高亮度对比度部分，FE-SEM反射电子图像 其表面。

公开(公告)号：US09946177B2

公开(公告)日：2018-04-17

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： G03G9/113 ,  G03G9/083 ,  G03G15/08

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：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：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：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：US20110171573A1

公开(公告)日：2011-07-14

申请号：US12978920

申请日：2010-12-27

申请人： Koichi SAKATA ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

发明人： Koichi SAKATA ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

IPC分类号： G03G21/16 ,  G03G9/113 ,  G03G13/20 ,  G03G15/09

CPC分类号： G03G9/1139 ,  G03G9/10 ,  G03G9/1136 ,  G03G13/06 ,  G03G13/08

摘要： A carrier for use in a two component developer for developing an electrostatic latent image is provided. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a silicone resin and barium sulfate. The cover layer includes Ba and Si at an atomic ratio of from 0.01 to 0.08 as determined by X-ray photoelectron spectroscopy.

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。 载体包括颗粒芯材料; 以及覆盖层，其位于所述芯材的表面上，并且包括硅树脂和硫酸钡。 覆盖层包括通过X射线光电子能谱测定的原子比为0.01至0.08的Ba和Si。

公开(公告)号：US09029061B2

公开(公告)日：2015-05-12

申请号：US12978920

申请日：2010-12-27

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

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

IPC分类号： G03G9/00 ,  G03G9/113 ,  G03G9/10 ,  G03G13/06 ,  G03G13/08

CPC分类号： G03G9/1139 ,  G03G9/10 ,  G03G9/1136 ,  G03G13/06 ,  G03G13/08

摘要： A carrier for use in a two component developer for developing an electrostatic latent image is provided. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a silicone resin and barium sulfate. The cover layer includes Ba and Si at an atomic ratio of from 0.01 to 0.08 as determined by X-ray photoelectron spectroscopy.

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。 载体包括颗粒芯材料; 以及覆盖层，其位于所述芯材的表面上，并且包括硅树脂和硫酸钡。 覆盖层包括通过X射线光电子能谱测定的原子比为0.01至0.08的Ba和Si。

公开(公告)号：US08481239B2

公开(公告)日：2013-07-09

申请号：US12896276

申请日：2010-10-01

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

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

IPC分类号： G03G9/00

CPC分类号： G03G15/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1137 ,  G03G2215/0602

摘要： A carrier, including a magnetic particulate core material and a resin layer on the core material, wherein the resin layer includes a resin obtained by heat treatment of a copolymer including a site derived from a monomer component having the following formula (1) and a site derived from a monomer component having the following formula (2), and includes a cross-linked material obtained by hydrolysis of the copolymer to produce a silanol group and condensation using an organotitanium compound: wherein R1 represents a hydrogen atom or a methyl group; m represents an alkylene group having 1 to 8 carbon atoms; R2 represents an alkyl group having 1 to 4 carbon atoms; R3 represents an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; X represents 10 to 90 mol %; and Y represents 10 to 90 mol %.

摘要翻译： 一种载体，其包括磁性颗粒芯材料和芯材上的树脂层，其中树脂层包括通过热处理包含具有下式（1）的单体组分的位点的共聚物和通过 衍生自具有下式（2）的单体组分，并且包括通过使共聚物水解制备硅烷醇基团并使用有机钛化合物缩合获得的交联材料：其中R1表示氢原子或甲基; m表示碳原子数1〜8的亚烷基。 R2表示碳原子数1〜4的烷基， R3表示碳原子数1〜8的烷基或碳原子数1〜4的烷氧基。 X表示10〜90摩尔％。 Y表示10〜90摩尔％。

公开(公告)号：US20110086307A1

公开(公告)日：2011-04-14

申请号：US12896276

申请日：2010-10-01

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

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

IPC分类号： G03G9/00 ,  G03G21/18 ,  G03G15/08

CPC分类号： G03G15/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1137 ,  G03G2215/0602

摘要： A carrier, including a magnetic particulate core material and a resin layer on the core material, wherein the resin layer includes a resin obtained by heat treatment of a copolymer including a site derived from a monomer component having the following formula (1) and a site derived from a monomer component having the following formula (2), and includes a cross-linked material obtained by hydrolysis of the copolymer to produce a silanol group and condensation using an organotitanium compound: wherein R1 represents a hydrogen atom or a methyl group; m represents an alkylene group having 1 to 8 carbon atoms; R2 represents an alkyl group having 1 to 4 carbon atoms; R3 represents an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; X represents 10 to 90 mol %; and Y represents 10 to 90 mol %.

摘要翻译： 一种载体，其包括磁性颗粒芯材料和芯材上的树脂层，其中树脂层包括通过热处理包含具有下式（1）的单体组分的位点的共聚物和通过 衍生自具有下式（2）的单体组分，并且包括通过使共聚物水解制备硅烷醇基团并使用有机钛化合物缩合获得的交联材料：其中R1表示氢原子或甲基; m表示碳原子数1〜8的亚烷基。 R2表示碳原子数1〜4的烷基， R3表示碳原子数1〜8的烷基或碳原子数1〜4的烷氧基。 X表示10〜90摩尔％。 Y表示10〜90摩尔％。

公开(公告)号：US08211610B2

公开(公告)日：2012-07-03

申请号：US12714848

申请日：2010-03-01

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

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

IPC分类号： G03G9/00

CPC分类号： G03G13/16 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1137 ,  G03G9/1138 ,  G03G9/1139

摘要： The carrier includes a particulate core material having magnetism; and a resin layer located on the surface of the particulate core material. The resin layer is prepared by forming a layer including a copolymer, which includes a unit (A) having a specific acrylic siloxane structure, a unit (B) having a specific acrylic silicone structure having a crosslinking ability, and a unit (C) having a specific acrylic structure in a specific ratio, on the particulate core material, and then subjecting the layer to a heat treatment to crosslink the layer.

摘要翻译： 载体包括具有磁性的颗粒状芯材料; 以及位于颗粒状芯材的表面上的树脂层。 通过形成包括共聚物的层来制备树脂层，该共聚物包括具有特定丙烯酸硅氧烷结构的单元（A），具有交联能力的具有特定丙烯酸硅酮结构的单元（B）和具有交联能力的单元（C） 特定的丙烯酸类结构，在颗粒状芯材上，然后使该层进行热处理以交联该层。