公开(公告)号：US06873814B2

公开(公告)日：2005-03-29

申请号：US10285636

申请日：2002-11-01

申请人： Tokuya Ohjimi ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Maiko Kondo ,  Toshio Koike ,  Atsushi Sampe ,  Masayuki Yamane ,  Kunihiro Ohyama ,  Junichi Sano ,  Takeyoshi Sekine

发明人： Tokuya Ohjimi ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Maiko Kondo ,  Toshio Koike ,  Atsushi Sampe ,  Masayuki Yamane ,  Kunihiro Ohyama ,  Junichi Sano ,  Takeyoshi Sekine

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G9/083 ,  G03G9/0819 ,  G03G9/0838 ,  G03G13/09

摘要： A developing device including a developer containing magnetic toner grains and includes a main pole for development disposed in a sleeve. Flux density generated by the magnetic pole in a direction normal to the surface of the sleeve outside of the surface has an attenuation ratio of 50% or above. The toner grains have a weight mean grain size of 6.0 μm to 8.0 μm while the toner grains having grain sizes of 5 μm and below occupy 40% to 80% of the entire developer. The toner grains have magnetization strength of 10 emu/g to 25 emu/g in a magnetic field of 5 kOe or magnetization strength of 7 emu/g to 20 emu/g in a magnetic field of 1 kOe. The toner grains reduce toner scattering and image defects despite that they are magnetic, thereby implementing ultrahigh resolution.

摘要翻译： 一种显影装置，包括含有磁性调色剂颗粒的显影剂，并且包括设置在套筒中的用于显影的主极。 磁极在垂直于表面外表面的方向上产生的磁通密度具有50％以上的衰减比。 调色剂颗粒具有6.0μm至8.0μm的重均粒度，而具有5μm以下的颗粒尺寸的调色剂颗粒占整个显影剂的40％至80％。 在1kOe的磁场中，调色剂颗粒在5kOe的磁场或7emu / g至20emu / g的磁场中具有10emu / g至25emu / g的磁化强度。 调色剂颗粒虽然是磁性的而减少了调色剂的散射和图像缺陷，从而实现了超高分辨率。

公开(公告)号：US06856774B2

公开(公告)日：2005-02-15

申请号：US10303910

申请日：2002-11-26

申请人： Atsushi Sampe ,  Takeyoshi Sekine ,  Masayuki Yamane ,  Tokuya Ohjimi ,  Junichi Sano ,  Toshio Koike ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Maiko Kondo ,  Kunihiro Ohyama

发明人： Atsushi Sampe ,  Takeyoshi Sekine ,  Masayuki Yamane ,  Tokuya Ohjimi ,  Junichi Sano ,  Toshio Koike ,  Fumihiro Sasaki ,  Hiroto Higuchi ,  Maiko Kondo ,  Kunihiro Ohyama

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0942

摘要： A developing device developing a latent image on a latent image carrier with a developer, and including a casing having an opening facing the latent image carrier and a developer carrier. Also included is a magnetic field generating device including a first magnetic pole generating a magnetic field causing the developer to rise on the developer carrier in a form of a magnet brush in a developing region, and a second magnetic pole generating a magnetic field at a downstream side of the first magnetic pole in a rotating direction of the developer carrier. Further, a toner-scattering restraining device is provided on an end portion of the casing at the downstream side of the developing region, and a magnetic member provided on a side of the toner-scattering restraining device facing the latent image carrier. A peak of a magnetic flux density set by the second magnetic pole in its normal direction is located outside of the opening.

摘要翻译： 显影装置用潜像显影剂在潜像载体上显影潜像，并且包括具有面向潜像载体的开口的壳体和显影剂载体。 还包括一种磁场产生装置，其包括产生磁场的第一磁极，使显影剂在显影区域中以磁刷的形式在显影剂载体上升起;以及第二磁极，在下游产生磁场 在显影剂载体的旋转方向上的第一磁极的侧面。 此外，在显影区域的下游侧的壳体的端部设置有调色剂 - 散射抑制装置，以及设置在面向潜像载体的调色剂 - 散射抑制装置一侧的磁性部件。 由第二磁极在其法线方向设定的磁通密度的峰值位于开口的外侧。

公开(公告)号：US06667141B2

公开(公告)日：2003-12-23

申请号：US10077752

申请日：2002-02-20

申请人： Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo

发明人： Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo

IPC分类号： G03G1316

CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/08795 ,  G03G13/025 ,  G03G2215/021

摘要： An image forming method and apparatus, wherein a surface of a photoconductor is charged with a contact-type charging roller having a surface roughness of 2-40 &mgr;m, and exposed imagewise to form an electrostatic latent image thereon, the latent image being developed with a toner, transferred to a transfer member and fixed, and wherein the toner comprises a colorant, and a binder resin containing a tetrahydrofuran-soluble component having such a molecular weight distribution that at least one peak having a half width not greater than 15,000 is present between 1,000 and 10,000 when measured by gel permeation chromatography.

公开(公告)号：US20050250036A1

公开(公告)日：2005-11-10

申请号：US10724260

申请日：2003-12-01

申请人： Shigeru Emoto ,  Shinichiro Yagi ,  Naohito Shimota ,  Maiko Kondo ,  Fumihiro Sasaki ,  Toshiki Nanya ,  Hiroto Higuchi ,  Masami Tomita ,  Tomoyuki Ichikawa

发明人： Shigeru Emoto ,  Shinichiro Yagi ,  Naohito Shimota ,  Maiko Kondo ,  Fumihiro Sasaki ,  Toshiki Nanya ,  Hiroto Higuchi ,  Masami Tomita ,  Tomoyuki Ichikawa

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC分类号： G03G9/087 ,  G03G9/08

摘要： A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55° C.; a colorant; and a release agent, and a particulate resin material which is located on surface of the toner particles with a coverage of from 50 to 100%, and which has a glass transition temperature of from 50 to 90° C., wherein a weight ratio (W2/W1) between the second binder resin (W2) and the first binder resin (W1) is from 5/95 to 40/60, and wherein a ratio (G′80/G′180) between a storage modulus of the toner at 80° C. (G′80) and a storage modulus at 180° C. (G′180) is from 100 to 1,000.

摘要翻译： 一种调色剂，其包含包含第一粘合剂树脂的调色剂颗粒; 与所述第一粘合剂树脂不同的玻璃化转变温度为40至55℃的第二粘合剂树脂; 着色剂 脱模剂和位于调色剂颗粒的表面上的覆盖率为50〜100％，玻璃化转变温度为50〜90℃的颗粒状树脂材料，其中，重量比（ 第二粘合剂树脂（W2）和第一粘合剂树脂（W1）之间的比率（G'80 / G'180）为5/95〜40/60，其中，调色剂 在80℃（G'80）和180℃下的储能模量（G'180）为100-1,000。

公开(公告)号：US06813461B2

公开(公告)日：2004-11-02

申请号：US10786548

申请日：2004-02-26

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

IPC分类号： G03G1508

CPC分类号： G03G9/08782 ,  G03G9/0808

摘要： A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm2, the toner plate has a surface having a coefficient of static friction of from 0.20 to 0.40. An image forming apparatus including an image bearing member, an image developer to form a toner image on the image bearing member, an image transferer configured to transfer the toner image on a receiving material and a fixer configured to fix the toner image thereon, wherein the apparatus has a waiting time not longer than 15 seconds, and a maximum power consumption not greater than 1.5 KW and 30 W in an image forming state and in a standby state, respectively, wherein the toner is the toner mentioned above.

摘要翻译： 一种调色剂，包括包含粘合剂树脂和脱模剂的调色剂颗粒，其中当施加478kg / cm 2的压力将调色剂模塑成板时，调色剂板具有具有静态摩擦系数 从0.20到0.40。 一种图像形成装置，包括图像承载部件，图像显影剂，以在图像承载部件上形成调色剂图像;图像转印器，被配置为将调色剂图像转印在接收材料上;以及定影器，其被配置为将调色剂图像固定在其上， 设备具有不超过15秒的等待时间，在图像形成状态和待机状态下的最大功耗不大于1.5KW和30W，其中调色剂是上述调色剂。

公开(公告)号：US06593048B2

公开(公告)日：2003-07-15

申请号：US09982877

申请日：2001-10-22

申请人： Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Hyou Shu ,  Maiko Kondo

发明人： Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Hyou Shu ,  Maiko Kondo

IPC分类号： G03G9083

CPC分类号： G03G9/1075 ,  G03G9/083 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0837 ,  G03G9/0839 ,  G03G9/0904 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1139

摘要： A two-component developer includes at least a magnetic toner and a magnetic carrier. The magnetic toner has magnetic particles coated with a carbon black layer. The magnetic toner adheres to the magnetic carrier due to the magnetic interaction.

摘要翻译： 双组分显影剂至少包括磁性调色剂和磁性载体。 磁性调色剂具有涂覆有炭黑层的磁性颗粒。 由于磁性相互作用，磁性调色剂粘附到磁性载体上。

公开(公告)号：US07736826B2

公开(公告)日：2010-06-15

申请号：US12212235

申请日：2008-09-17

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Shinichiro Yagi ,  Shigeru Emoto ,  Junichi Awamura ,  Naohito Shimota ,  Masami Tomita ,  Toshiki Nanya ,  Takahiro Honda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Shinichiro Yagi ,  Shigeru Emoto ,  Junichi Awamura ,  Naohito Shimota ,  Masami Tomita ,  Toshiki Nanya ,  Takahiro Honda ,  Maiko Kondo

IPC分类号： G03G9/087

CPC分类号： G03G9/0827 ,  G03G9/0819

摘要： A toner composition including toner particles including at least a binder resin; and a colorant, wherein the toner composition satisfies at least one of the following relationships (1) and (2): B≦14 when 155

摘要翻译： 一种调色剂组合物，其包含至少包含粘合剂树脂的调色剂颗粒; 和着色剂，其中调色剂组合物满足以下关系（1）和（2）中的至少一个：当155 n1; 180时，B＆ 和149;当145和nlE时为0.6A-79; A＆lt; 155;（1）其中A表示调色剂组合物的形状因子SF-1，B表示粒径不大于3μm的调色剂颗粒的含量; 和B＆nlE; 14当0.920＆nlE; A'＆nlE; 0.950; 和B＆lt; ll; 394-400A'当0.950

公开(公告)号：US07473508B2

公开(公告)日：2009-01-06

申请号：US10793320

申请日：2004-03-05

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Shinichiro Yagi ,  Shigeru Emoto ,  Junichi Awamura ,  Naohito Shimota ,  Masami Tomita ,  Toshiki Nanya ,  Takahiro Honda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Shinichiro Yagi ,  Shigeru Emoto ,  Junichi Awamura ,  Naohito Shimota ,  Masami Tomita ,  Toshiki Nanya ,  Takahiro Honda ,  Maiko Kondo

IPC分类号： G03G9/08

CPC分类号： G03G9/0827 ,  G03G9/0819

摘要： A toner composition including toner particles including at least a binder resin; and a colorant, wherein the toner composition satisfies at least one of the following relationships (1) and (2): B≦14 when 155

摘要翻译： 一种调色剂组合物，其包含至少包含粘合剂树脂的调色剂颗粒; 和着色剂，其中调色剂组合物满足以下关系（1）和（2）中的至少一个：<？在线公式描述=“在线公式”end =“lead”？> B <= 14 当155 <？in-line-formula description =“In-line Formulas”end =“lead”？> B <= 0.6A -79当145 <= A <= 155时，（1）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中A表示调色剂组合物的形状因子SF-1， B表示粒径不大于3um的调色剂颗粒的含量; 当0.920 <= A'<= 0.950时，<？in-line-formula description =“In-line formula”end =“lead”？> B <= 14; 和<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> B <= 394- 400A'当0.950 其中A'表示调色剂组合物的平均圆形度，B表示 粒径不大于3μm的调色剂颗粒的含量。

公开(公告)号：US20080138735A1

公开(公告)日：2008-06-12

申请号：US11980488

申请日：2007-10-31

申请人： Masami Tomita ,  Tadao Takikawa ,  Tomoyuki Ichikawa ,  Fumihiro Sasaki ,  Toshiki Nanya ,  Hiroto Higuchi ,  Shigeru Emoto ,  Shinichiro Yagi ,  Naohito Shimota ,  Maiko Kondo

发明人： Masami Tomita ,  Tadao Takikawa ,  Tomoyuki Ichikawa ,  Fumihiro Sasaki ,  Toshiki Nanya ,  Hiroto Higuchi ,  Shigeru Emoto ,  Shinichiro Yagi ,  Naohito Shimota ,  Maiko Kondo

IPC分类号： G03G9/087

CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09725

摘要： A toner for developing a latent electrostatic image including a base of toner particle which contains a binder resin and a coloring agent, and an external additive. Herein, a plurality of the base of toner particle has a volume average particle diameter (Dv) of 3 μm to 7 μm, a ratio (Dv/Dn) of the volume average particle diameter (Dv) to a number average particle diameter (Dn) is 1.01 to 1.25, a plurality of the base of toner particle contains 15% by number or less of the base of toner particle having a particle diameter of 0.6 μm to 2.0 μm, a plurality of the base of toner particle has a circularity of 0.930 to 0.990 on average, the binder resin contains a modified polyester resin, and the toner contains 0.3 parts by weight to 5.0 parts by weight of the external additive, relative to 100 parts by weight of the base of toner particle.

公开(公告)号：US07323281B2

公开(公告)日：2008-01-29

申请号：US11529370

申请日：2006-09-29

申请人： Shigeru Emoto ,  Shinichiro Yagi ,  Naohito Shimota ,  Maiko Kondo ,  Fumihiro Sasaki ,  Toshiki Nanya ,  Hiroto Higuchi ,  Masami Tomita ,  Tomoyuki Ichikawa

发明人： Shigeru Emoto ,  Shinichiro Yagi ,  Naohito Shimota ,  Maiko Kondo ,  Fumihiro Sasaki ,  Toshiki Nanya ,  Hiroto Higuchi ,  Masami Tomita ,  Tomoyuki Ichikawa

IPC分类号： G03G9/087

CPC分类号： G03G9/087 ,  G03G9/08

摘要： A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55° C.; a colorant; and a release agent, and a particulate resin material which is located on surface of the toner particles with a coverage of from 50 to 100%, and which has a glass transition temperature of from 50 to 90° C., wherein a weight ratio (W2/W1) between the second binder resin (W2) and the first binder resin (W1) is from 5/95 to 40/60, and wherein a ratio (G′80/G′180) between a storage modulus of the toner at 80° C. (G′80) and a storage modulus at 180° C. (G′180) is from 100 to 1,000.

摘要翻译： 一种调色剂，其包含包含第一粘合剂树脂的调色剂颗粒; 与所述第一粘合剂树脂不同的玻璃化转变温度为40至55℃的第二粘合剂树脂; 着色剂 脱模剂和位于调色剂颗粒的表面上的覆盖率为50〜100％，玻璃化转变温度为50〜90℃的颗粒状树脂材料，其中，重量比（ 第二粘合剂树脂（W 2）和第一粘合剂树脂（W 1）之间的W 2 / W 1）为5/95〜40/60，其中， 调色剂在80℃下的模量（G'80）和180℃下的储能模量（G'180）为100至1,000。