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    Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge
    21.
    发明授权
    Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge 有权
    电子照相感光体，图像形成装置和电子照像盒

    公开(公告)号：US08404411B2

    公开(公告)日：2013-03-26

    申请号：US12301121

    申请日：2007-05-18

    Applicant: Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroe Fuchigami ,  Hiroaki Takamura ,  Yasunori Kawai

    Inventor： Teruyuki Mitsumori ,  Kozo Ishio ,  Hiroe Fuchigami ,  Hiroaki Takamura ,  Yasunori Kawai

    IPC: G03G5/14

    CPC classification number: G03G5/144 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0616

    Abstract: An electrophotographic photoreceptor having high sensitivity and hardly affected by the transfer in an electrophotographic process is provided. The electrophotographic photoreceptor includes an undercoat layer containing metal oxide particles and a binder resin and a photosensitive layer disposed on the undercoat layer, wherein the metal oxide particles have a volume average particle diameter of 0.1 μm or less and a 90% cumulative particle diameter of 0.3 μm or less which are measured by a dynamic light-scattering method in a liquid of the undercoat layer dispersed in a solvent mixture of methanol and 1-propanol at a weight ratio of 7:3, and the photosensitive layer contains a binder resin having an ester bond.

    Abstract translation: 提供了具有高灵敏度且几乎不受电子照相方法转印影响的电子照相感光体。 电子照相感光体包括含有金属氧化物颗粒和粘合剂树脂的底涂层和设置在底涂层上的感光层，其中金属氧化物颗粒的体积平均粒径为0.1μm以下，90％的累积粒径为0.3 μm以下，其通过动态光散射法在分散在甲醇和1-丙醇的溶剂混合物中的底涂层的液体中以重量比7:3的比例测量，并且感光层含有具有 酯键。

    Image forming apparatus
    22.
    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
    23.
    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
    25.
    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
    26.
    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”？>

    PHTHALOCYANINE CRYSTAL, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE AND IMAGE-FORMING DEVICE USING THE SAME
    29.
    发明申请
    PHTHALOCYANINE CRYSTAL, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE AND IMAGE-FORMING DEVICE USING THE SAME 有权
    PHALALOCYANINE晶体和电子照相光电子产品，电子照相胶卷盒和使用它的成像装置

    公开(公告)号：US20100232830A1

    公开(公告)日：2010-09-16

    申请号：US12293830

    申请日：2007-03-20

    Applicant: Mitsuo Wada ,  Kazutaka Ida ,  Teruyuki Mitsumori ,  Hiroaki Takamura ,  Tadashi Mizushima

    Inventor： Mitsuo Wada ,  Kazutaka Ida ,  Teruyuki Mitsumori ,  Hiroaki Takamura ,  Tadashi Mizushima

    IPC: G03G21/16 ,  G03G5/04 ,  C09B47/04 ,  G03G15/00

    CPC classification number: G03G5/0696 ,  C09B47/045 ,  C09B67/0016 ,  C09B67/0026

    Abstract: Provided is an excellent phthalocyanine crystal having high sensitivity and little fluctuation in sensitivity for a humidity change in a use environment and applicable to the martial for solar battery, electronic paper, electrophotographic photoreceptor, etc. Namely, phthalocyanine crystal obtained by bringing a phthalocyanine crystal precursor into contact with an aromatic aldehyde compound to convert the crystal form. Also, provided is an electrophotographic photoreceptor that not only exhibits high sensitivity but also has little fluctuation in sensitivity for a humidity change in a use environment. Further, provided is an electrophotographic photoreceptor cartridge and an image-forming device, both of which can produce a stable quality images for a humidity change in a use environment by using the electrophotographic photoreceptor.

    Abstract translation: 提供了一种优异的酞菁结晶，其在使用环境中的湿度变化的灵敏度高，灵敏度波动小，适用于太阳能电池，电子纸，电子照相感光体等的武器。即，通过将酞菁结晶前体 与芳族醛化合物接触以转化晶体形式。 此外，提供了一种电子照相感光体，其不仅表现出高灵敏度，而且在使用环境中对湿度变化的灵敏度几乎没有波动。 此外，提供了一种电子照相感光体盒和图像形成装置，它们都可以通过使用电子照相感光体在使用环境中产生用于湿度变化的稳定质量图像。

    ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS
    30.
    发明申请
    ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS 审中-公开
    电子照相机，电子照相机墨盒和图像形成装置

    公开(公告)号：US20090245867A1

    公开(公告)日：2009-10-01

    申请号：US12091392

    申请日：2006-10-26

    Applicant: Mitsuo Wada ,  Hiroaki Takamura ,  Teruyuki Mitsumori ,  Kazutaka Ida

    Inventor： Mitsuo Wada ,  Hiroaki Takamura ,  Teruyuki Mitsumori ,  Kazutaka Ida

    IPC: G03G15/00 ,  G03G5/06

    CPC classification number: G03G5/0696 ,  G03G5/0614 ,  G03G5/0616

    Abstract: To provide an electrophotographic photoreceptor showing suitable electric characteristics, capable of forming a favorable image even after repeated use for long term and capable of forming a high quality image free from image defects such as a memory phenomenon, an electrophotographic process cartridge using such an electrophotographic photoreceptor, and an image forming apparatus using such an electrophotographic photoreceptor.An electrophotographic photoreceptor comprising a photosensitive layer containing oxytitanium phthalocyanine showing chief diffraction peaks at Bragg angles (2θ±0.2°) of 9.6°, 24.1° and 27.2° to CuKα characteristic X-ray (wavelength: 1.541 Å) obtained by subjecting a phthalocyanine crystal precursor to chemical treatment and then bringing it into contact with an organic solvent, and a hydrazone compound represented by the following formula (1):

    Abstract translation: 为了提供一种具有合适的电特性的电子照相感光体，即使在长时间重复使用之后也能够形成良好的图像并且能够形成没有诸如记忆现象的图像缺陷的高质量图像，使用这种电子照相感光体的电子照相处理盒 以及使用这种电子照相感光体的图像形成装置。 一种电子照相感光体，其包含含有氧钛酞菁的感光层，其显示出对于CuKalpha特征X射线（波长：1.541）的布拉格角（2θ±0.2°）为9.6°，24.1°和27.2°的主要衍射峰， 化学处理的前体，然后使其与有机溶剂接触，和由下式（1）表示的腙化合物：

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