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    Process for producing toner for electrostatic charge image development toner for electrostatic charge image development
    3.
    发明授权
    Process for producing toner for electrostatic charge image development toner for electrostatic charge image development 有权
    用于制造用于静电荷图像显影的静电荷图像显影调色剂用调色剂的方法

    公开(公告)号：US08283097B2

    公开(公告)日：2012-10-09

    申请号：US11719913

    申请日：2005-11-21

    Applicant: Masatoshi Maruyama ,  Hiroya Kodama ,  Masaya Oota ,  Shiho Sano

    Inventor： Masatoshi Maruyama ,  Hiroya Kodama ,  Masaya Oota ,  Shiho Sano

    IPC: G03G9/087

    CPC classification number: G03G9/08782 ,  G03G9/0806

    Abstract: To provide a process for efficiently producing a toner for developing an electrostatic charge image, which is scarcely susceptible to aggregation of the toner and free from blocking during the storage or from soiling the image forming apparatus and which is excellent in image characteristics. A process for producing a toner for developing an electrostatic charge image, characterized by supplying a monomer into a dispersion containing wax and a polymerizable monomer having a C8-100 hydrocarbon group, carrying out the polymerization, followed by flocculation treatment.

    Abstract translation: 提供一种用于有效地产生用于显影静电荷图像的调色剂的方法，该静电荷图像几乎不易受到调色剂的聚集的影响，并且在保存期间不会发生堵塞或污染图像形成装置，并且具有优异的图像特性。 一种用于生产用于显影静电荷图像的调色剂的方法，其特征在于将单体供入到含有蜡的分散体和具有C8-100烃基的可聚合单体中，进行聚合，随后进行絮凝处理。

    IMAGE FORMING APPARATUS
    4.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开
    图像形成装置

    公开(公告)号：US20120039630A1

    公开(公告)日：2012-02-16

    申请号：US13237180

    申请日：2011-09-20

    Applicant: Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    Inventor： Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    IPC: G03G15/00

    CPC classification number: G03G13/08 ,  G03G9/0819 ,  G03G15/08

    Abstract: An image forming apparatus containing an electrophotographic photoreceptor and a toner for developing an electrostatic charge image, where the electrophotographic photoreceptor has an electroconductive substrate with a surface roughness Ra of from 0.01 μm to 0.3 μm; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies formula (1): Dns≦0.233EXP(17.3/Dv50)  (1) where Dv50 is the volume median diameter (μm) of the toner, and Dns is the percentage in number of toner particles having a particle diameter of from 2.00 μm to 3.56 μm.

    Abstract translation: 含有电子照相感光体和静电荷图像显影用调色剂的图像形成装置，其中电子照相感光体具有表面粗糙度Ra为0.01μm〜0.3μm的导电性基体; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂的体积中值粒径（Dv50）为4.0μm〜7.0μm; 体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂粒子的数量（Dns）之间的关系满足式（1）：Dns＆nlE; 0.233EXP（17.3 / Dv50）（1 ）其中Dv50是调色剂的体积中值直径（μm），Dns是粒径为2.00μm至3.56μm的调色剂颗粒数的百分比。

    Copolymer and composition containing the copolymer
    6.
    发明授权
    Copolymer and composition containing the copolymer 失效
    含有该共聚物的共聚物和组合物

    公开(公告)号：US5319045A

    公开(公告)日：1994-06-07

    申请号：US70210

    申请日：1993-06-02

    Applicant: Takayuki Ohta ,  Hiroaki Yamaoka ,  Junichi Gotoh ,  Shiho Sano

    Inventor： Takayuki Ohta ,  Hiroaki Yamaoka ,  Junichi Gotoh ,  Shiho Sano

    IPC: C08F290/06 ,  C08F18/02

    CPC classification number: C08F290/061

    Abstract: A copolymer having repeating units of the following formula (I) and repeating units of the formula (II), wherein the ration of (I) to (II) is within a range of from 10:90 to 90:10 by weight ratio, and the number average molecular weight is at least 1,000, or the intrinsic viscosity .eta..sub.inh is at least 0.02: ##STR1## wherein A is a polyester unit having a polymerization degree of from 2 to 200, R.sup.3 is a bivalent organic group having an ester, urethane or ketone bond, and R.sup.4 is a hydrogen atom or a methyl group, ##STR2## wherein R.sup.5 is a hydrogen atom or a methyl group, and X is a substituent having functionality.

    Abstract translation: 具有下式（I）的重复单元和式（II）的重复单元的共聚物，其中（I）至（II）的比例在10:90至90:10的重量比范围内， 数均分子量为1000以上，特性粘度等级为0.02以下，其中A为聚合度为2〜200的聚酯单元，R3为二价有机基团 具有酯，氨基甲酸酯或酮键，并且R 4是氢原子或甲基，其中R 5是氢原子或甲基，X是具有官能团的取代基。

    Image forming apparatus
    7.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US08211602B2

    公开(公告)日：2012-07-03

    申请号：US12849499

    申请日：2010-08-03

    Applicant: Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    Inventor： Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    IPC: G03G9/08

    CPC classification number: G03G13/08 ,  G03G9/0819 ,  G03G15/08

    Abstract: An image forming apparatus comprising an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, and a toner for developing an electrostatic charge image, wherein the photosensitive layer of the electrophotographic photoreceptor contains a phthalocyanine obtained via an acid paste step; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies the following formula (1): Dns≦0.233 EXP(17.3/Dv50)  (1).

    Abstract translation: 一种图像形成装置，包括在导电性基体上具有感光层的电子照相感光体和静电荷图像显影用调色剂，其中，电子照相感光体的感光层含有通过酸性糊剂步骤得到的酞菁; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂的体积中值粒径（Dv50）为4.0μm〜7.0μm; 体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂粒子的数量（Dns）的关系满足下式（1）：Dns＆nlE; 0.233 EXP（17.3 / Dv50） （1）。

    IMAGE-FORMING APPARATUS AND CARTRIDGE
    8.
    发明申请
    IMAGE-FORMING APPARATUS AND CARTRIDGE 审中-公开
    图像形成装置和盒子

    公开(公告)号：US20100183330A1

    公开(公告)日：2010-07-22

    申请号：US12664405

    申请日：2008-06-12

    Applicant: Mitsuo Wada ,  Teruyuki Mitsumori ,  Hiroaki Takamura ,  Masaya Oota ,  Teruki Senokuchi ,  Shiho Sano ,  Masakazu Sugihara ,  Shiro Yasutomi ,  Yumi Hirabaru ,  Takeshi Oowada

    Inventor： Mitsuo Wada ,  Teruyuki Mitsumori ,  Hiroaki Takamura ,  Masaya Oota ,  Teruki Senokuchi ,  Shiho Sano ,  Masakazu Sugihara ,  Shiro Yasutomi ,  Yumi Hirabaru ,  Takeshi Oowada

    IPC: G03G15/02

    CPC classification number: G03G13/08 ,  G03G5/047 ,  G03G5/0696 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/0918 ,  G03G2215/00957

    Abstract: Provided is an image-forming apparatus and a cartridge that are low in occurrence of smears in white areas, residual images, scattering, lines, thin spots, and dead dots, which are caused by particle size distribution of a toner and mismatching of a toner and a photoreceptor, exhibit satisfactory image quality, thin-line reproducibility, and cleaning properties, and can form high-resolution images without smears after long-time operation and selective development even in a high speed printing.The image-forming apparatus includes an electrophotographic photoreceptor of which photosensitive layer contains oxytitanium phthalocyanine showing main diffraction peaks at Bragg angles (2θ) of 9.0° and 27.2° and at least one main diffraction peak in the range of 9.3° to 9.8° to CuKα rays, and the toner satisfies all the following requirements (1) to (3):(1) the volume median diameter (Dv50) is 4.0 μm or more and 7.0 μm or less,(2) the average sphericity is 0.93 or more, and(3) the relation between the volume median diameter (Dv50) and the content (% by number: Dns) of toner particles of 2.00 μm or more and 3.56 μm or less satisfies Dns≦0.233 EXP(17.3/Dv50).

    Abstract translation: 提供了由调色剂的粒度分布和调色剂不匹配引起的白色区域，残留图像，散射，线，薄点和死点中的涂片发生率低的图像形成装置和盒 和感光体，表现出令人满意的图像质量，细线再现性和清洁性，并且即使在高速印刷中也可以长时间操作和选择性显影后形成高分辨率图像而不产生污迹。 图像形成装置包括电子照相感光体，感光层含有氧钛酞菁，其显示出在9.0°和27.2°的布拉格角（2θ）下的主要衍射峰，以及至少一个主衍射峰在9.3°至9.8°至 CuKα射线和调色剂满足以下所有要求（1）至（3）：（1）体积中值粒径（Dv50）为4.0μm以上且7.0μm以下，（2）平均球形度为0.93以上 ，和（3）2.00μm以上且3.56μm以下的调色剂粒子的体积中值粒径（Dv50）与含量（数量％Dns）的关系满足Dns＆nlE; 0.233 EXP（17.3 / Dv50）。

    Image Forming Apparatus
    9.
    发明申请
    Image Forming Apparatus 审中-公开
    图像形成装置

    公开(公告)号：US20090053634A1

    公开(公告)日：2009-02-26

    申请号：US12295469

    申请日：2007-03-30

    Applicant: Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    Inventor： Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    IPC: G03G5/06 ,  G03G15/06 ,  G03G15/02 ,  G03G9/08

    CPC classification number: G03G13/08 ,  G03G9/0819 ,  G03G15/08

    Abstract: To provide a toner excellent in the image stability, whereby the image quality can be improved while suppressing soiling of image white parts, residual images (ghosts), fading (blotted image follow-up properties), etc., cleaning properties are good, and even when a high speed printing machine is used, it is possible to reduce a problem of soiling, etc.An image forming apparatus comprising an electrophotographic photoreceptor and a toner for developing an electrostatic charge image, wherein a photosensitive layer of the electrophotographic photoreceptor contains a resin having a structural unit represented by the following formula (A); the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies the following formula (1): where X1 is a single bond or a connecting group having no cyclic structure, and each of Y1 to Y8 which are independent of one another, is a hydrogen atom or a substituent having at most 20 carbon atoms; Dns≦0.233EXP(17.3/Dv50)  (1)

    Abstract translation: 为了提供图像稳定性优异的调色剂，可以在抑制图像白色部分的残留，残留图像（重影），褪色（印迹图像随访特性）等的同时，提高图像质量，清洗性能良好， 即使使用高速印刷机也可以减少污染等问题。包括电子照相感光体和静电荷图像显影用调色剂的图像形成装置，其中电子照相感光体的感光层含有 具有由下式（A）表示的结构单元的树脂; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂具有4.0μm至7.0μm的体积中值直径（Dv50）; 体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂颗粒的数量（Dns）的关系满足下式（1）：其中X1是单键或连接 不具有环状结构的基团，并且彼此独立的Y1〜Y8中的每一个为氢原子或具有至多20个碳原子的取代基; <？in-line-formula description =“In-line Formulas”end =“lead”？> Dns <= 0.233EXP（17.3 / Dv50）（1）<？in-line-formula description =“In-line Formulas” end =“tail”？>

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 审中-公开
    图像形成装置

    公开(公告)号：US20090041500A1

    公开(公告)日：2009-02-12

    申请号：US12281705

    申请日：2007-03-30

    Applicant: Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    Inventor： Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroaki Takamura ,  Masaya Oota ,  Shiho Sano ,  Takeshi Oowada ,  Masakazu Sugihara ,  Teruki Senokuti ,  Shiro Yasutomi ,  Yumi Hirabaru

    IPC: G03G15/00

    CPC classification number: G03G13/08 ,  G03G9/0819 ,  G03G15/08

    Abstract: To provide an image forming apparatus which is capable of suppressing soiling of image white parts, residual images (ghosts), fading, etc. due to non-uniformity in the particle size distribution of a toner or mismatching between a toner and a photoreceptor and which is able to improve image quality, provides good fixing properties and cleaning properties with little fogging or dot missing, presents good reproducibility of fine lines, and even when a high speed printing machine is used, can reduce a problem of e.g. soiling in a long-term use and presents excellent image stability.An image forming apparatus comprising an electrophotographic photoreceptor and a toner for developing an electrostatic charge image, wherein a photosensitive layer in the electrophotographic photoreceptor comprises an undercoat layer containing a polyamide resin; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies the following formula (1): Dns≦0.233EXP(17.3/Dv50)  (1)

    Abstract translation: 为了提供一种图像形成装置，其能够抑制图像白色部分的污染，由于调色剂的粒度分布不均匀或调色剂和感光体之间的不匹配引起的残留图像（重影），褪色等， 能够提高图像质量，提供良好的定影性能和清洁性能，几乎没有起雾或点丢失，呈现良好的细线重现性，甚至在使用高速印刷机时也可以减少例如 长期使用污渍，呈现优异的图像稳定性。 一种图像形成装置，包括电子照相感光体和用于显影静电荷图像的调色剂，其中电子照相感光体中的感光层包括含有聚酰胺树脂的底涂层; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂具有4.0μm至7.0μm的体积中值直径（Dv50）; 体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂粒子的数量（Dns）的关系满足下式（1）：＆lt;＆lt;内嵌式说明= “In-line Formulas”end =“lead”？> Dns <= 0.233EXP（17.3 / Dv50）（1）<？in-line-formula description =“In-line Formulas”end =“tail”？>

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