公开(公告)号：US06806012B2

公开(公告)日：2004-10-19

申请号：US10244856

申请日：2002-09-16

申请人： Yasuko Yamauchi ,  Ken Ohmura ,  Masafumi Uchida

发明人： Yasuko Yamauchi ,  Ken Ohmura ,  Masafumi Uchida

IPC分类号： G03G9093

CPC分类号： G03G9/08782 ,  G03G9/0806 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08795 ,  G03G9/093 ,  G03G9/09307 ,  G03G9/0935

摘要： An electrostatic image developing toner is disclosed. The resin of the toner particle has a cell structure and an average value of FERE-horizontal diameters of the cells is from 20 to 200 nm and a variation coefficient of the FERE-horizontal diameters of the cells is from 10 to 35%.

摘要翻译： 公开了静电图像显影调色剂。 调色剂颗粒的树脂具有电池结构，电池的FERE-水平直径的平均值为20〜200nm，电池的FERE-水平直径的变动系数为10〜35％。

公开(公告)号：US06703177B2

公开(公告)日：2004-03-09

申请号：US10126156

申请日：2002-04-19

申请人： Hiroshi Yamazaki ,  Ken Ohmura

发明人： Hiroshi Yamazaki ,  Ken Ohmura

IPC分类号： G03G1516

CPC分类号： G03G13/08 ,  G03G9/0819 ,  G03G2215/0103

摘要： An electrophotographic image forming method is disclosed. The method comprises forming a latent image on a static image carrier, developing the static image by a developer containing a toner, transferring the toner image onto another image carrier, transferring the toner image on the image carrier onto an image forming support, and fixing the toner image transferred on the image forming support, and the toner has a variation coefficient of the shape coefficient of not more than 16% and a number variation coefficient of the particle diameter distribution in number of not more than 27%, and the other image carrier is a cylindrical member having an electrode contacting to the interior surface thereof.

摘要翻译： 公开了电子照相图像形成方法。 该方法包括在静态图像载体上形成潜像，通过含有调色剂的显影剂显影静电图像，将调色剂图像转印到另一图像载体上，将图像载体上的调色剂图像转印到成像载体上，并将 调色剂图像转印在图像形成支撑体上，并且调色剂的形状系数的变异系数不大于16％，粒径分布的数量变异系数不大于27％，另一个图像载体 是具有与其内表面接触的电极的圆柱形构件。

公开(公告)号：US06506529B2

公开(公告)日：2003-01-14

申请号：US09953681

申请日：2001-09-17

申请人： Masafumi Uchida ,  Hiroshi Yamazaki ,  Meizo Shirose ,  Hajime Tadokoro ,  Ken Ohmura

发明人： Masafumi Uchida ,  Hiroshi Yamazaki ,  Meizo Shirose ,  Hajime Tadokoro ,  Ken Ohmura

IPC分类号： G03G9097

CPC分类号： G03G9/09733 ,  G03G9/08782

摘要： A toner for developing an electrostatic latent image comprising a resin, a colorant and a releasing agent is disclosed. The releasing agent comprises a mixture of a plurality of compounds represented by formula (1) having difference carbon number of carbon atoms in R2 R1—(OCO—R2)n  (1) wherein n represents an integer of 1 to 8 carbon atoms which may has a substituent, R1 is a hydrocarbon group having from 1 to 40, R2 is a hydrocarbon group having from 8 to 40 carbon atoms which may has a substituent.

摘要翻译： 公开了一种用于显影包含树脂，着色剂和脱模剂的静电潜像的调色剂。 脱模剂包含在R2中具有碳原子数不同的多个由式（1）表示的化合物的混合物，其中n表示可具有取代基的1至8个碳原子的整数，R 1是具有1个 至40，R 2为可具有取代基的碳原子数为8〜40的烃基。

公开(公告)号：US06456820B1

公开(公告)日：2002-09-24

申请号：US09888747

申请日：2001-06-25

申请人： Kazuhiko Sato ,  Ken Ohmura

发明人： Kazuhiko Sato ,  Ken Ohmura

IPC分类号： G03G2100

CPC分类号： G03G21/0029

摘要： A cleaning unit having a cleaning blade which removes residual toner from an organic photoreceptor is disclosed. The cleaning unit is constituted so as to satisfy the relation of the variation of dynamic torque values of from 10 Hz to 10 kHz, generated between said organic photoreceptor and said cleaning blade in the specification.

摘要翻译： 公开了一种具有从有机感光体除去残留调色剂的清洁刮板的清洁单元。 清洁单元被构造成满足在说明书中在所述有机感光体和所述清洁刮板之间产生的10Hz至10kHz的动态转矩值的变化的关系。

公开(公告)号：US06287740B1

公开(公告)日：2001-09-11

申请号：US09767095

申请日：2001-01-22

申请人： Ken Ohmura ,  Tomomi Oshiba

发明人： Ken Ohmura ,  Tomomi Oshiba

IPC分类号： G03G9097

摘要： A toner for electrophotography is disclosed. The toner comprises a binder resin and a colorant and a wax in amount of 0.5 to 8 percent by weight, and adhesion power index of wax particles to toner particles is between 0.7 and 2.2. The toner improves the durability of the developer material and a photoreceptor, minimizes image smear at high temperature and humidity, and exhibits excellent fixation as well as offsetting resistance.

公开(公告)号：US06248494B1

公开(公告)日：2001-06-19

申请号：US09452075

申请日：1999-11-30

申请人： Hiroshi Yamazaki ,  Ken Ohmura ,  Tomomi Oshiba ,  Meizo Shirose ,  Shigenori Kouno

发明人： Hiroshi Yamazaki ,  Ken Ohmura ,  Tomomi Oshiba ,  Meizo Shirose ,  Shigenori Kouno

IPC分类号： G03G9097

CPC分类号： G03G9/09

摘要： A toner for developing an electrostatic image is disclosed. The toner comprises colored particles containing a resin and a colorant, the volume average particle diameter of said colored particles is 3 to 9 &mgr;m, the shape coefficient of said colored particles, which is described by the formula below, is 1.3 to 2.2, and the ratio of toner particles having a shape coefficient of 1.5 to 2.0 is at least 80 percent by number. Shape coefficient=[(maximum diameter/2)2×&pgr;]/(projection area) A developer and image forming method employing the toner are also disclosed.

摘要翻译： 公开了用于显影静电图像的调色剂。 调色剂包含含有树脂和着色剂的着色颗粒，所述着色颗粒的体积平均粒径为3至9μm，由下式描述的所述着色颗粒的形状系数为1.3至2.2，并且 具有1.5至2.0的形状系数的调色剂颗粒的比例至少为80％。使用调色剂的显影剂和图像形成方法也被公开。

公开(公告)号：US06197468B1

公开(公告)日：2001-03-06

申请号：US09378899

申请日：1999-08-23

申请人： Ken Ohmura ,  Tomomi Oshiba

发明人： Ken Ohmura ,  Tomomi Oshiba

IPC分类号： G03G9097

CPC分类号： G03G9/08704 ,  G03G9/08782

摘要： A toner for electrophotography is disclosed. The toner comprises a binder resin and a colorant and a wax in amount of 0.5 to 8 percent by weight, and adhesion power index of wax particles to toner particles is between 0.7 and 2.2. The toner improves the durability of the developer material and a photoreceptor, minimizes image smear at high temperature and humidity, and exhibits excellent fixation as well as offsetting resistance.

公开(公告)号：US5350656A

公开(公告)日：1994-09-27

申请号：US669932

申请日：1991-03-15

申请人： Shigenori Kouno ,  Ken Ohmura ,  Yoshiaki Koizumi ,  Kenji Tsujita

发明人： Shigenori Kouno ,  Ken Ohmura ,  Yoshiaki Koizumi ,  Kenji Tsujita

IPC分类号： G03G9/113 ,  G03G9/00

CPC分类号： G03G9/1131 ,  G03G9/1132

摘要： There is disclosed an electrostatic image-developing carrier having a resin coat layer with an excellent mechanical strength. The carrier is prepared by repeatedly applying a mechanical impact force to the mixture of the core particle and the coating resin particle in a dry condition, wherein a molecular weight distribution chromatogram according to a gel permeation chromatography of a tetrahydro-furansoluble component in the resin coat layer has at least one peak or shoulder in a molecular weight range 1,000 to 20,000.

摘要翻译： 公开了具有机械强度优异的树脂涂层的静电影像显影载体。 在干燥条件下，通过重复地对核心颗粒和涂覆树脂颗粒的混合物施加机械冲击力制备载体，其中根据树脂涂层中四氢呋喃不溶成分的凝胶渗透色谱法的分子量分布色谱 层具有1,000至20,000的分子量范围内的至少一个峰或肩峰。

公开(公告)号：US09268245B2

公开(公告)日：2016-02-23

申请号：US13658435

申请日：2012-10-23

申请人： Mikio Kouyama ,  Ken Ohmura

发明人： Mikio Kouyama ,  Ken Ohmura

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G9/13

CPC分类号： G03G9/08706 ,  G03G9/087 ,  G03G9/08702 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/08728

摘要： The toner is a low-environmental load toner for electrostatic image development. The toner includes toner particles containing a resin. The resin contains a vinyl polymer having a structural unit represented by the following general formula (1). In the formula, R1 to R5 are each a hydrogen atom, an alkoxy group having 1 to 4 carbon atoms or —OCOR6 (R6 is an alkyl group having 1 to 8 carbon atoms), at least two of R1 to R5 are hydrogen atoms, and at least one thereof is an alkoxy group having 1 to 4 carbon atoms or —OCOR6.

摘要翻译： 调色剂是用于静电图像显影的低环境负荷调色剂。 调色剂包括含有树脂的调色剂颗粒。 该树脂含有具有由以下通式（1）表示的结构单元的乙烯基聚合物。 式中，R 1〜R 5分别为氢原子，碳原子数1〜4的烷氧基或-OCOR 6（R 6为碳原子数1〜8的烷基），R 1〜R 5中的至少2个为氢原子， 并且其中至少一个是具有1至4个碳原子的烷氧基或-OCOR 6。

公开(公告)号：US08642242B2

公开(公告)日：2014-02-04

申请号：US13281935

申请日：2011-10-26

申请人： Saburou Hiraoka ,  Mikihiko Sukeno ,  Hajime Tadokoro ,  Ken Ohmura ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Kenji Hayashi ,  Tomoko Mine

发明人： Saburou Hiraoka ,  Mikihiko Sukeno ,  Hajime Tadokoro ,  Ken Ohmura ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Kenji Hayashi ,  Tomoko Mine

IPC分类号： G03G9/087

CPC分类号： G03G9/08793 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09371

摘要： Provided is a method of manufacturing toner by which the toner capable of forming high quality images and reproducing high density gradation, which exhibits an excellent high-temperature offsetting property together with excellent low-temperature fixability, and provides appropriate gloss with respect to images to be formed, can be stably prepared; and also provided is the toner. After conducting a step in which particles made of at least a crystalline polyester resin are coagulated to form core coagulated particles, and an unsaturated amorphous polyester resin particle is attached onto the surface of each of the core coagulated particles to form core-shell type coagulated particles, radical polymerization reaction is conducted by acting a radical polymerization initiator on the foregoing core-shell type coagulated particles to conduct a step in which a layer made of a crosslinking amorphous polyester resin is formed on the surface of each of the core coagulated particles.

摘要翻译： 提供一种制造调色剂的方法，通过该调色剂能够形成高质量图像并再现高密度等级的调色剂，其具有优异的高温抵消性能以及优异的低温定影性，并且对于图像提供适当的光泽度 形成，可以稳定准备; 并且还提供了调色剂。 在进行由至少结晶性聚酯树脂制成的粒子凝固形成铁心凝固粒子的工序后，在各凝固粒子的表面上附着不饱和非晶质聚酯树脂粒子，形成核壳型凝固粒子 通过在上述核 - 壳型凝结粒子上进行自由基聚合引发剂进行自由基聚合反应，进行在每个芯凝固粒子的表面上形成由交联性无定形聚酯树脂构成的层的工序。