公开(公告)号：US08637218B2

公开(公告)日：2014-01-28

申请号：US13556549

申请日：2012-07-24

申请人： Koichi Sakata ,  Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida

发明人： Koichi Sakata ,  Shigenori Yaguchi ,  Kimitoshi Yamaguchi ,  Toyoshi Sawada ,  Hiroshi Tohmatsu ,  Hiroyuki Kishida

IPC分类号： G03G9/113

CPC分类号： G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1136

摘要： A carrier for developing electrostatic latent image, including a core material; and a coated layer covering the core material, including a binder resin and a particulate material, wherein the core material is exposed on the surface of the carrier at an areal ratio of from 0.1 to 5.0% and has the largest exposed part having an areal ratio not greater than 0.03%, and wherein the coated layer comprises the particulate material in an amount of from 100 to 500 parts by weight per 100 parts by weight of the binder resin.

摘要翻译： 用于显影静电潜像的载体，包括芯材; 以及覆盖所述芯材的涂层，包括粘合剂树脂和颗粒材料，其中所述芯材料以0.1至5.0％的面积比曝露在所述载体的表面上，并且具有最大的暴露部分具有面积比 不大于0.03％，并且其中所述涂层包含每100重量份粘合剂树脂100至500重量份的颗粒材料。

公开(公告)号：US08377620B2

公开(公告)日：2013-02-19

申请号：US12276827

申请日：2008-11-24

申请人： Tsuneyasu Nagatomo ,  Toyoshi Sawada ,  Satoshi Kojima

发明人： Tsuneyasu Nagatomo ,  Toyoshi Sawada ,  Satoshi Kojima

IPC分类号： G03G21/10

CPC分类号： G03G21/00 ,  G03G9/0804 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/09716 ,  G03G9/09725 ,  G03G2221/0005

摘要： An image forming method including charging an image bearing member by applying combination of DC voltage and AC voltage with frequency of 6.5 to 8.5 cycle/mm; irradiating the image bearing member with light to form an electrostatic image; developing the electrostatic image with a developer including toner to form a toner image; transferring the toner image onto a receiving material; fixing the toner image; cleaning the image bearing member with a blade; then applying a lubricant to the image bearing member; and then spreading the lubricant with a spreading member countering the image bearing member. The toner includes toner particles granulated in an aqueous medium; and at least three kinds of external additives including a first particulate hydrophobic silica, a particulate hydrophobic titanium oxide and a second particulate hydrophobic silica respectively having BET specific surface areas of 20 to 40 m2/g, 40 to 80 m2/g, and 130 to 300 m2/g.

摘要翻译： 一种图像形成方法，包括通过施加直流电压和交流电压的组合使频率为6.5至8.5周/ mm的图像承载部件; 用光照射图像承载部件以形成静电图像; 用包含调色剂的显影剂显影静电图像以形成调色剂图像; 将调色剂图像转印到接收材料上; 固定调色剂图像; 用刀片清洁图像承载部件; 然后向图像承载部件施加润滑剂; 然后用对准图像承载部件的扩展部件分散润滑剂。 调色剂包括在水性介质中造粒的调色剂颗粒; 以及分别具有20〜40m 2 / g，40〜80m 2 / g的BET比表面积和40〜80m 2 / g的130〜80m 2 / g的至少3种外部添加剂，所述外部添加剂包括第一粒状疏水性二氧化硅，微粒状疏水性氧化钛和第二粒状疏水性二氧化硅 300 m2 / g。

公开(公告)号：US08263302B2

公开(公告)日：2012-09-11

申请号：US12555109

申请日：2009-09-08

申请人： Yoshihiro Moriya ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Ryota Inoue ,  Akiyoshi Sabu ,  Shingo Sakashita

发明人： Yoshihiro Moriya ,  Akihiro Kotsugai ,  Toyoshi Sawada ,  Ryota Inoue ,  Akiyoshi Sabu ,  Shingo Sakashita

IPC分类号： G03G9/00

CPC分类号： G03G9/1136 ,  G03G9/1133 ,  G03G9/1137 ,  G03G2215/00957

摘要： A carrier for electrophotographic developer, including a core material; and a layer comprising a binder resin, located overlying the core material, wherein the binder resin includes a segment including one or more polymerizable vinyl monomers as a structural unit; and another segment including a partial cleavage structure of polyhedral oligomeric silsesquioxane and/or another partial cleavage structure of polyhedral oligomeric silsesquioxane as a structural unit.

摘要翻译： 用于电子照相显影剂的载体，包括芯材料; 以及包含位于所述芯材料上方的粘合剂树脂的层，其中所述粘合剂树脂包括包含一种或多种可聚合乙烯基单体作为结构单元的链段; 以及包含多面体低聚倍半硅氧烷的部分切割结构和/或作为结构单元的多面体低聚倍半硅氧烷的另一部分切割结构的另一部分。

公开(公告)号：US07799498B2

公开(公告)日：2010-09-21

申请号：US12026937

申请日：2008-02-06

申请人： Takuya Seshita ,  Junichi Awamura ,  Tomomi Suzuki ,  Toyoshi Sawada ,  Masahide Yamada

发明人： Takuya Seshita ,  Junichi Awamura ,  Tomomi Suzuki ,  Toyoshi Sawada ,  Masahide Yamada

IPC分类号： G03G15/08

CPC分类号： G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716

摘要： The present invention provides an image forming apparatus capable of stably producing high quality images with time, without causing missing a central part of a thin line, however, with keeping an appropriate flowability of a toner. The toner used in the image forming apparatus is a toner which contains a binder resin, a colorant, and a laminar inorganic mineral in which at least part of an ion in layers is modified with an organic ion, the toner is granulated in an aqueous system, the volume average particle diameter Dv of the toner is in the range of 3.0 μm

摘要翻译： 本发明提供一种图像形成装置，能够随时间稳定地产生高质量的图像，而不会导致缺少细线的中心部分，同时保持调色剂的合适的流动性。 图像形成装置中使用的调色剂是含有粘合剂树脂，着色剂和层状无机矿物的调色剂，其中层中的至少一部分离子用有机离子改性，调色剂在水性体系中造粒 ，调色剂的体积平均粒径Dv在3.0μm

公开(公告)号：US20090142685A1

公开(公告)日：2009-06-04

申请号：US12276827

申请日：2008-11-24

申请人： Tsuneyasu NAGATOMO ,  Toyoshi Sawada ,  Satoshi Kojima

发明人： Tsuneyasu NAGATOMO ,  Toyoshi Sawada ,  Satoshi Kojima

IPC分类号： G03G9/08 ,  G03G5/00 ,  G03G13/16 ,  G03G15/10

CPC分类号： G03G21/00 ,  G03G9/0804 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/09716 ,  G03G9/09725 ,  G03G2221/0005

摘要： An image forming method including charging an image bearing member by applying combination of DC voltage and AC voltage with frequency of 6.5 to 8.5 cycle/mm; irradiating the image bearing member with light to form an electrostatic image; developing the electrostatic image with a developer including toner to form a toner image; transferring the toner image onto a receiving material; fixing the toner image; cleaning the image bearing member with a blade; then applying a lubricant to the image bearing member; and then spreading the lubricant with a spreading member countering the image bearing member. The toner includes toner particles granulated in an aqueous medium; and at least three kinds of external additives including a first particulate hydrophobic silica, a particulate hydrophobic titanium oxide and a second particulate hydrophobic silica respectively having BET specific surface areas of 20 to 40 m2/g, 40 to 80 m2/g, and 130 to 300 m2/g.

摘要翻译： 一种图像形成方法，包括通过施加直流电压和交流电压的组合使频率为6.5至8.5周/ mm的图像承载部件; 用光照射图像承载部件以形成静电图像; 用包含调色剂的显影剂显影静电图像以形成调色剂图像; 将调色剂图像转印到接收材料上; 固定调色剂图像; 用刀片清洁图像承载部件; 然后向图像承载部件施加润滑剂; 然后用对准图像承载部件的扩展部件分散润滑剂。 调色剂包括在水性介质中造粒的调色剂颗粒; 以及分别具有20〜40m 2 / g，40〜80m 2 / g的BET比表面积和40〜80m 2 / g的130〜80m 2 / g的至少3种外部添加剂，所述外部添加剂包括第一粒状疏水性二氧化硅，微粒状疏水性氧化钛和第二粒状疏水性二氧化硅 300 m2 / g。

公开(公告)号：US20080292361A1

公开(公告)日：2008-11-27

申请号：US12026937

申请日：2008-02-06

申请人： Takuya SESHITA ,  Junichi Awamura ,  Tomomi Suzuki ,  Toyoshi Sawada ,  Masahide Yamada

发明人： Takuya SESHITA ,  Junichi Awamura ,  Tomomi Suzuki ,  Toyoshi Sawada ,  Masahide Yamada

IPC分类号： G03G15/08

CPC分类号： G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716

摘要： The present invention provides an image forming apparatus capable of stably producing high quality images with time, without causing missing a central part of a thin line, however, with keeping an appropriate flowability of a toner. The toner used in the image forming apparatus is a toner which contains a binder resin, a colorant, and a laminar inorganic mineral in which at least part of an ion in layers is modified with an organic ion, the toner is granulated in an aqueous system, the volume average particle diameter Dv of the toner is in the range of 3.0 μm

摘要翻译： 本发明提供一种图像形成装置，能够随时间稳定地产生高质量的图像，而不会导致缺少细线的中心部分，同时保持调色剂的合适的流动性。 图像形成装置中使用的调色剂是含有粘合剂树脂，着色剂和层状无机矿物的调色剂，其中层中的至少一部分离子用有机离子改性，调色剂在水性体系中造粒 ，调色剂的体积平均粒径Dv在3.0μm

公开(公告)号：US20070218385A1

公开(公告)日：2007-09-20

申请号：US11687875

申请日：2007-03-19

申请人： Satoshi Kojima ,  Toyoshi Sawada ,  Tsuneyasu Nagatomo ,  Takuya Seshita ,  Tomomi Suzuki

发明人： Satoshi Kojima ,  Toyoshi Sawada ,  Tsuneyasu Nagatomo ,  Takuya Seshita ,  Tomomi Suzuki

IPC分类号： G03G9/08 ,  G03G9/00

CPC分类号： G03G9/0827 ,  G03G9/0806 ,  G03G9/08755 ,  G03G9/09716 ,  G03G9/09725

摘要： A toner is provided including a binder resin and a colorant, wherein the toner has an average shape factor SF-1 of from 130 to 160, and includes toner particles having a shape factor SF-1 of from 100 to 115 in an amount of not greater than 2% by number, and wherein the toner is prepared by a wet granulation method, along with an image forming apparatus and process cartridge using the toner.

摘要翻译： 提供了包括粘合剂树脂和着色剂的调色剂，其中调色剂具有130至160的平均形状因子SF-1，并且包括形状系数SF-1为100至115的调色剂颗粒，其量不为 大于2％的数量，并且其中通过湿式造粒方法制备调色剂以及使用调色剂的图像形成装置和处理盒。

公开(公告)号：US20050214670A1

公开(公告)日：2005-09-29

申请号：US11081737

申请日：2005-03-17

申请人： Keiko Matsumoto ,  Toyoshi Sawada

发明人： Keiko Matsumoto ,  Toyoshi Sawada

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08797

摘要： The object of the present invention is to provide a toner characterized in that the toner comprises a first binder resin and a second binder resin, the first binder resin is an amorphous resin and the second binder resin is a crystalline resin, and the glass-transition temperature of the toner (TgA) is lower than the glass-transition temperature expressed by the following equation (1) (TgC). TgC = ∑ i = 1 n ⁢ b i / ∑ i = 1 n ⁢ ( b i TgB i ) Equation ⁢   ⁢ ( 1 ) In the above equation (1), “TgBi” represents the glass-transition temperature of the amorphous resin, “n” represents the number of amorphous resins, and “b” represents the content of the amorphous resin (part by mass). Examples of the preferred aspect of the present invention includes the one that at least a part of the amorphous resin and a part of the crystalline resin are compatible each other, and the one that the glass-transition temperature of the toner (TgA) is 10° C. or more lower than the glass-transition temperature (TgC).

公开(公告)号：US09885967B2

公开(公告)日：2018-02-06

申请号：US15021638

申请日：2014-08-13

申请人： Azumi Miyaake ,  Daisuke Asahina ,  Toyoshi Sawada ,  Hiroshi Yamashita ,  Tsuyoshi Sugimoto ,  Shinya Nakayama ,  Susumu Chiba ,  Satoyuki Sekiguchi

发明人： Azumi Miyaake ,  Daisuke Asahina ,  Toyoshi Sawada ,  Hiroshi Yamashita ,  Tsuyoshi Sugimoto ,  Shinya Nakayama ,  Susumu Chiba ,  Satoyuki Sekiguchi

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G15/08

CPC分类号： G03G9/0821 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/08

摘要： Provided is a resin for a toner, which is a copolymer including a crystalline segment, and having a maximum elastic stress value at 100° C. (ES100) of 1,000 Pa or less, and a maximum elastic stress value at 70° C. (ES70) of 1,000 Pa or greater when the temperature is lowered from 100° C. to 70° C., where the maximum elastic stress values are measured according to a large amplitude oscillatory shear procedure.

公开(公告)号：US09851649B2

公开(公告)日：2017-12-26

申请号：US14891032

申请日：2013-11-27

申请人： Keiji Makabe ,  Tsuyoshi Sugimoto ,  Akinori Saito ,  Suzuka Amemori ,  Toyoshi Sawada ,  Hiroshi Yamashita ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Daisuke Asahina ,  Satoyuki Sekiguchi

发明人： Keiji Makabe ,  Tsuyoshi Sugimoto ,  Akinori Saito ,  Suzuka Amemori ,  Toyoshi Sawada ,  Hiroshi Yamashita ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Daisuke Asahina ,  Satoyuki Sekiguchi

IPC分类号： G03G9/00 ,  G03G9/087 ,  G03G15/01

CPC分类号： G03G9/08788 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0126

摘要： A toner includes a binder resin including a copolymer resin containing structural units derived from crystalline and non-crystalline resins, respectively. Spin-spin relaxation time (t50) of the toner at 50° C. measured by pulse NMR is ≦0.05 msec., spin-spin relaxation time (t130) at 130° C. when warmed from 50° C. to 130° C. is >15 msec., and spin-spin relaxation time (t′70) at 70° C. when cooled from 130° C. to 70° C. is ≦1.00 msec. A binarized image obtained by binarizing a phase image of the toner observed by a tapping mode AFM based on intermediate value between maximum and minimum phase difference values in the phase image includes first phase difference images constituted by large phase-difference portions and a second phase difference image constituted by a small phase-difference portion. The first phase difference images are dispersed in the second phase difference image. The dispersion diameter of the first phase difference images is 150 nm or less.