公开(公告)号：US08741525B2

公开(公告)日：2014-06-03

申请号：US12495973

申请日：2009-07-01

申请人： Osamu Wada ,  Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Hiroyuki Hirakawa ,  Yoshinori Mutoh ,  Takashi Hara ,  Hirofumi Kanda ,  Yoshio Ichii

发明人： Osamu Wada ,  Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Hiroyuki Hirakawa ,  Yoshinori Mutoh ,  Takashi Hara ,  Hirofumi Kanda ,  Yoshio Ichii

IPC分类号： G03G9/00

CPC分类号： G03G9/1136 ,  G03G9/08755 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/1139

摘要： The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5≦−log {(A/C)/(B/C)}≦2.5  (1) wherein A represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (Ω/cm) of the carrier core in an electric field of 1000 V/cm.

摘要翻译： 树脂涂布载体与调色剂一起使用，其中平均一次粒径为50nm以上的外部添加剂添加到调色剂颗粒中，并且在载体芯的表面上具有载体芯和树脂涂层。 在树脂被覆载体中满足以下表达式（1）：0.5＆nlE; -log {（A / C）/（B / C）}＆nlE; 2.5（1）其中A表示体积电阻值（＆ cm），通过进行搅拌试验而得到的电场为1000V / cm的树脂被覆载体的B，表示在1000V / cm 2的电场中的树脂被覆载体的体积电阻值（＆amp; cm，并且C表示载体芯在1000V / cm的电场中的体积电阻值（＆amp; R g / cm）。

公开(公告)号：US20100135700A1

公开(公告)日：2010-06-03

申请号：US12451652

申请日：2008-03-26

申请人： Yoshinori Mutoh ,  Tadashi Iwamatsu ,  Takanori Kamoto ,  Nobuyuki Yoshioka ,  Hiroyuki Hirakawa ,  Takashi Hara

发明人： Yoshinori Mutoh ,  Tadashi Iwamatsu ,  Takanori Kamoto ,  Nobuyuki Yoshioka ,  Hiroyuki Hirakawa ,  Takashi Hara

IPC分类号： G03G15/08 ,  G03G9/08 ,  G03G9/09 ,  G03G9/097 ,  G03G9/113 ,  G03G9/10

CPC分类号： G03G9/097 ,  G03G9/08 ,  G03G9/113 ,  G03G9/1132 ,  G03G9/1136 ,  G03G9/1138 ,  G03G9/1139

摘要： A developer of the present invention includes a toner and a carrier. The toner contains a charge control agent, and the carrier has on its surface a coating layer to which a charge control agent and electrically conductive particles are added. All of constituent elements of one of the charge control agent of the toner and the charge control agent of the carrier are contained in constituent elements of the other one of the charge control agents. With the configuration, the developer of the present invention is capable of stably maintaining a toner charge amount and outputting high-quality images for long periods.

摘要翻译： 本发明的显影剂包括调色剂和载体。 调色剂含有电荷控制剂，并且载体在其表面上具有添加电荷控制剂和导电颗粒的涂层。 调色剂的电荷控制剂之一和载体的电荷控制剂的所有构成元素都包含在另一个电荷控制剂的组成元素中。 利用该结构，本发明的显影剂能够稳定地保持调色剂的充电量并长期输出高质量的图像。

公开(公告)号：US08192908B2

公开(公告)日：2012-06-05

申请号：US12128148

申请日：2008-05-28

申请人： Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Yoshinori Mutoh ,  Hiroyuki Hirakawa ,  Takashi Hara

发明人： Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Yoshinori Mutoh ,  Hiroyuki Hirakawa ,  Takashi Hara

IPC分类号： G03G9/08

CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1136

摘要： A carrier of the present invention is used in a developer including a toner which includes at least a binder resin and an organic colorant, and the carrier has a core and a coating formed on the surface of the core, the coating including (i) a charge control agent for controlling a charge whose polarity is the same as a polarity of a charge controlled by a charge control agent included in the toner, and (ii) a conductive particles. The use of the carrier of the present invention enables: prevention of decrease in the charging amount of the toner which includes at least a binder resin and an organic colorant; and formation of a stable, high-resolution, high-quality image which has very few image defects such as a photographic fog.

摘要翻译： 本发明的载体用于包括至少包含粘合剂树脂和有机着色剂的调色剂的显影剂中，并且所述载体具有在芯的表面上形成的芯和涂层，所述涂层包括（i） 用于控制极性与由调色剂中包含的电荷控制剂控制的电荷的极性相同的电荷的电荷控制剂，和（ii）导电颗粒。 使用本发明的载体能够：防止包含至少粘合剂树脂和有机着色剂的调色剂的带电量的降低; 并形成稳定，高分辨率，高质量的图像，其具有非常少的图像缺陷，例如摄影雾。

公开(公告)号：US20100003614A1

公开(公告)日：2010-01-07

申请号：US12495973

申请日：2009-07-01

申请人： Osamu Wada ,  Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Hiroyuki Hirakawa ,  Yoshinori Mutoh ,  Takashi Hara ,  Hirofumi Kanda ,  Yoshio Ichii

发明人： Osamu Wada ,  Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Hiroyuki Hirakawa ,  Yoshinori Mutoh ,  Takashi Hara ,  Hirofumi Kanda ,  Yoshio Ichii

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/1136 ,  G03G9/08755 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/1139

摘要： The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5≦−log {(A/C)/(B/C)}≦2.5   (1) wherein A represents a volume resistance value (Q/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (Ω/cm) of the carrier core in an electric field of 1000 V/cm.

摘要翻译： 树脂涂布载体与调色剂一起使用，其中平均一次粒径为50nm以上的外部添加剂添加到调色剂颗粒中，并且在载体芯的表面上具有载体芯和树脂涂层。 在树脂涂布载体中，满足以下表达式（1）：0.5A / C）/（B / C）}其中A表示在1000的电场中树脂涂布载体的体积电阻值（Q / cm） V / cm，B表示搅拌试验前的1000V / cm的电场中的树脂被覆载体的体积电阻值（Ω/ cm），C表示体积电阻值（ 在1000V / cm的电场中的载体芯的Ω/ cm 2。

公开(公告)号：US20080299471A1

公开(公告)日：2008-12-04

申请号：US12128148

申请日：2008-05-28

申请人： Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Yoshinori Mutoh ,  Hiroyuki Hirakawa ,  Takashi Hara

发明人： Takanori Kamoto ,  Tadashi Iwamatsu ,  Nobuyuki Yoshioka ,  Yoshinori Mutoh ,  Hiroyuki Hirakawa ,  Takashi Hara

IPC分类号： G03G9/097 ,  G03G13/14 ,  G03G13/06

CPC分类号： G03G9/1075 ,  G03G9/1131 ,  G03G9/1136

摘要： A carrier of the present invention is used in a developer including a toner which includes at least a binder resin and an organic colorant, and the carrier has a core and a coating formed on the surface of the core, the coating including (i) a charge control agent for controlling a charge whose polarity is the same as a polarity of a charge controlled by a charge control agent included in the toner, and (ii) a conductive particles. The use of the carrier of the present invention enables: prevention of decrease in the charging amount of the toner which includes at least a binder resin and an organic colorant; and formation of a stable, high-resolution, high-quality image which has very few image defects such as a photographic fog.

摘要翻译： 本发明的载体用于包括至少包含粘合剂树脂和有机着色剂的调色剂的显影剂中，并且所述载体具有在芯的表面上形成的芯和涂层，所述涂层包括（i） 用于控制极性与由调色剂中包含的电荷控制剂控制的电荷的极性相同的电荷的电荷控制剂，和（ii）导电颗粒。 使用本发明的载体能够：防止包含至少粘合剂树脂和有机着色剂的调色剂的带电量的降低; 并形成稳定，高分辨率，高质量的图像，其具有非常少的图像缺陷，例如摄影雾。

公开(公告)号：US20100104329A1

公开(公告)日：2010-04-29

申请号：US12451857

申请日：2008-07-08

申请人： Nobuyuki Yoshioka ,  Tadashi Iwamatsu ,  Yoshinori Mutuo ,  Hiroyuki Hirakawa ,  Takashi Hara ,  Takanori Kamoto

发明人： Nobuyuki Yoshioka ,  Tadashi Iwamatsu ,  Yoshinori Mutuo ,  Hiroyuki Hirakawa ,  Takashi Hara ,  Takanori Kamoto

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G9/0819 ,  G03G9/107 ,  G03G9/1131 ,  G03G9/1136 ,  G03G9/1139 ,  G03G2215/0607

摘要： Regarding a magnetic carrier of the present invention, a surface of a magnetic core material is coated with a coating layer containing electrically conductive particles and a charge control agent composed of same components as components of a charge control agent contained in a electrophotographic toner. Further, the magnetic carrier exhibits an electric resistance value of 8.22×107 Ωcm to 1.12×1010 Ωcm in an electric field of 4×103 V/cm. This allows the magnetic carrier to stay capable of charging the electrophotographic toner even over a long period of time.

摘要翻译： 对于本发明的磁性载体，磁性材料的表面涂覆有包含导电颗粒的涂层和由与电子照相调色剂中所含的电荷控制剂的组分相同的成分组成的电荷控制剂。 此外，在4×103V / cm的电场中，磁性载体的电阻值为8.22×107＆OHgr·cm〜1.12×1010＆OHgr·cm。 这使得磁性载体即使在长时间内也能够保持对电子照相调色剂的充电。

公开(公告)号：US08609316B2

公开(公告)日：2013-12-17

申请号：US12986790

申请日：2011-01-07

申请人： Takashi Hara ,  Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Yoshinori Mutoh ,  Keiichi Kikawa

发明人： Takashi Hara ,  Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Yoshinori Mutoh ,  Keiichi Kikawa

IPC分类号： G03G9/093

CPC分类号： G03G9/09392 ,  G03G9/09371 ,  G03G9/09378

摘要： A method for manufacturing a capsule toner having improved preservability with no deterioration in low-temperature fixability is provided. The method for manufacturing a capsule toner includes a mixed fine resin particle adhering step of adhering mixed fine resin particles including crystalline polyester fine resin particles and amorphous fine resin particles to surfaces of toner base particles to form mixed fine resin particle-adhered particles, a spraying step of spraying a mixed solution of a liquid for plasticizing the toner base particles and the mixed fine resin particles and a crystal nucleating agent, while fluidizing the mixed fine resin particle-adhered particles, and a film-forming step of making a film of the mixed fine resin particles by impact force so that the film is a resin coating layer on the surfaces of the toner base particles.

摘要翻译： 提供了一种制造具有改进的保存性而不降低低温定影性的胶囊调色剂的方法。 胶囊调色剂的制造方法包括将包含结晶性聚酯树脂微粒和无定形细小树脂粒子的混合精细树脂颗粒粘附到调色剂基础颗粒表面以形成混合的细颗粒粘附颗粒的混合细颗粒粘附步骤，喷涂 在将混合的细树脂颗粒附着颗粒流化的同时，喷涂用于塑化调色剂基础颗粒和混合的细颗粒树脂颗粒和晶体成核剂的液体的混合溶液的步骤;以及成膜步骤， 通过冲击力混合精细树脂颗粒，使得膜是调色剂基础颗粒表面上的树脂涂层。

公开(公告)号：US20110059394A1

公开(公告)日：2011-03-10

申请号：US12878415

申请日：2010-09-09

申请人： Yoshinori MUTOH ,  Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Keiichi Kikawa ,  Takashi Hara

发明人： Yoshinori MUTOH ,  Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Keiichi Kikawa ,  Takashi Hara

IPC分类号： G03G9/08 ,  G03G9/09

CPC分类号： G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09371 ,  G03G9/09392

摘要： There are provided a capsule toner, a two-component developer, and a capsule toner manufacturing method. The capsule toner in which a resin coating layer made of fine release-agent particles and fine resin particles is made on the surfaces of toner base particles, and thus excellent offset resistance without impairing blocking resistance can be obtained. The capsule toner includes toner base particles containing a binder resin and a colorant, and a resin coating layer made of fine release-agent particles and fine resin particles, for covering the surfaces of the toner base particles. The fine release-agent particles are dispersed in the resin coating layer.

摘要翻译： 提供了胶囊调色剂，双组分显影剂和胶囊调色剂制造方法。 可以获得在调色剂基础颗粒的表面上形成由微细的脱模剂颗粒和细小树脂颗粒制成的树脂涂层的胶囊调色剂，从而在不损害粘合阻力的情况下获得极好的耐偏移性。 胶囊调色剂包括含有粘合剂树脂和着色剂的调色剂基础颗粒，以及用于覆盖调色剂基础颗粒的表面的由微细脱模剂颗粒和细小树脂颗粒制成的树脂涂层。 细分离剂颗粒分散在树脂涂层中。

公开(公告)号：US20100159374A1

公开(公告)日：2010-06-24

申请号：US12637263

申请日：2009-12-14

申请人： Yoshinori Mutoh ,  Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Keiichi Kikawa ,  Takashi Hara

发明人： Yoshinori Mutoh ,  Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Keiichi Kikawa ,  Takashi Hara

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/0815 ,  G03G9/0825 ,  G03G9/09733

摘要： A method for manufacturing a toner includes a pre-mixing step and a coating step. In the pre-mixing step, a secondary aggregate of the fine resin particles is disaggregated, while toner base particles and fine resin particles are mixed and stirred using a rotary stirring apparatus. Thus obtained disaggregated fine resin particles are fixed to the surface of the toner base particle. Thus, a fine resin particle-fixed toner is obtained. The rotary stirring apparatus includes a rotary stirring section, a temperature regulation section, a circulating section, and a spraying section. In the coating step, a liquid is sprayed to the fine resin particle-fixed toner with the spraying section using the rotary stirring apparatus. Thus, a film of the fine resin particles is formed. In the pre-mixing step and the coating step, temperature regulation is conducted in the temperature regulation section.

摘要翻译： 调色剂的制造方法包括预混合步骤和涂布步骤。 在预混合步骤中，将细树脂颗粒的二次聚集体分解，同时使用旋转搅拌装置将调色剂基础颗粒和细树脂颗粒混合并搅拌。 将这样得到的分解精细树脂颗粒固定在调色剂基础颗粒的表面上。 因此，获得了树脂微粒固定的调色剂。 旋转搅拌装置包括旋转搅拌部，温度调节部，循环部和喷雾部。 在涂布步骤中，使用旋转搅拌装置将喷射部分的液体喷雾到具有树脂微粒的调色剂上。 因此，形成了树脂微粒的膜。 在预混合步骤和涂布步骤中，在温度调节部分进行温度调节。

公开(公告)号：US08389194B2

公开(公告)日：2013-03-05

申请号：US12731396

申请日：2010-03-25

申请人： Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Yoshinori Mutoh ,  Keiichi Kikawa ,  Takashi Hara

发明人： Yoshiaki Akazawa ,  Yoshitaka Kawase ,  Yoritaka Tsubaki ,  Yoshinori Mutoh ,  Keiichi Kikawa ,  Takashi Hara

IPC分类号： G03G5/00

CPC分类号： G03G9/0808 ,  G03G9/0815 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

摘要： A toner manufacturing method, a toner obtained by the method, a one-component developer, a two-component developer, a developing device and an image forming apparatus are provided. By using a toner manufacturing apparatus including a powder passage, a spraying section for spraying a predetermined substance in the powder passage and a rotary stirring section, provided in the powder passage, and stirring particles in the powder passage to apply impact force to the particles so that the particles are fluidized in the powder passage, performed are a stirring step S3 of fluidizing toner core particles with fine inorganic particles adhering to the surfaces thereof and fine resin particles in the powder passage as the powder by the rotary stirring section, and a spraying step S5 of spraying a volatile liquid which softens fine resin particles as a predetermined substance by the spraying section.

摘要翻译： 提供调色剂制造方法，通过该方法获得的调色剂，单组分显影剂，双组分显影剂，显影装置和图像形成装置。 通过使用包括粉末通道的粉末制造装置，用于喷射粉末通道中的预定物质的喷射部分和设置在粉末通道中的旋转搅拌部分，并且搅拌粉末通道中的颗粒以向颗粒施加冲击力 颗粒在粉末通道中流动，是通过旋转搅拌部分将粉末通道中附着有微细无机颗粒的调色剂芯颗粒和作为粉末的粉末通道中的细小树脂颗粒流化的搅拌步骤S3和喷雾 喷洒通过喷涂部软化作为规定物质的树脂微粒的挥发性液体的步骤S5。