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    Image forming method
    3.
    发明授权
    Image forming method 有权

    公开(公告)号：US09470992B2

    公开(公告)日：2016-10-18

    申请号：US14628831

    申请日：2015-02-23

    Applicant: Konica Minolta, Inc.

    Inventor： Satoshi Uchino ,  Shinya Obara ,  Yasuko Uchino ,  Ikuko Sakurada

    IPC: G03G9/097 ,  G03G9/08 ,  G03G9/087

    CPC classification number: G03G9/0819 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/09716 ,  G03G9/09725

    Abstract: An image forming method includes: charging a surface of an electrostatic latent image holder with a charging roller; exposing the charged surface so as to form an electrostatic latent image; and developing the formed electrostatic latent image with toner. The toner contains at least a toner base particle and an external additive minute particle. The external additive minute particle contains a silica-polymer composite minute particle. A silicon atom abundance ratio obtained from abundances of a carbon atom, an oxygen atom and a silicon atom present on an outermost surface and within 3 nm from the outermost surface in a depth direction of the silica-polymer composite minute particle are measured with an x-ray photoelectron spectrometer satisfies at least the following condition A. 15.0 atm %≦silicon atom abundance ratio ({Si/(C+O+Si)}×100)≦30.0 atm %  [Condition A]

    Image formation method, toner set, and white toner
    4.
    发明授权
    Image formation method, toner set, and white toner 有权
    图像形成方法，调色剂和白色调色剂

    公开(公告)号：US09372423B2

    公开(公告)日：2016-06-21

    申请号：US14807266

    申请日：2015-07-23

    Applicant: Konica Minolta, Inc.

    Inventor： Anju Hori ,  Junya Onishi ,  Yasuko Uchino ,  Ikuko Sakurada ,  Natsuko Fujisaki ,  Junya Ueda ,  Takaki Kawamura

    IPC: G03G9/08 ,  G03G13/01 ,  G03G15/01

    CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G13/01 ,  G03G13/013 ,  G03G13/016 ,  G03G15/01 ,  G03G15/0168 ,  G03G15/0173

    Abstract: The invention provides an image formation method, a toner set, and a white toner, by which a masking function of an image layer formed by a white toner on a recording medium can be developed efficiently, and low temperature fixability can be improved. An image formation method for fixing an image forming layer (A) to be formed using a white toner, and an image forming layer (B) to be formed adjacent to the image forming layer (A) using a toner different from the white toner on a recording medium; wherein the following relational expressions (1) and (2) are satisfied: 1.000

    Abstract translation: 本发明提供了一种图像形成方法，调色剂组合和白色调色剂，可以有效地开发由记录介质上的白色调色剂形成的图像层的掩蔽功能，并且可以提高低温定影性。 用于使用白色调色剂形成的图像形成层（A）和与图像形成层（A）相邻形成的图像形成层（B）的图像形成方法使用不同于白色调色剂的调色剂 记录介质; 其中满足以下关系式（1）和（2）：1.000

    Electrostatic latent image developing toner, production method of the toner for electrostatic latent image development and electrophotographic image formation method
    6.
    发明授权
    Electrostatic latent image developing toner, production method of the toner for electrostatic latent image development and electrophotographic image formation method 有权
    静电潜影显影用调色剂，静电潜像显影用调色剂的制造方法以及电子照相图像形成方法

    公开(公告)号：US09213249B2

    公开(公告)日：2015-12-15

    申请号：US14284842

    申请日：2014-05-22

    Applicant: Konica Minolta, Inc.

    Inventor： Futoshi Kadonome ,  Yukio Hosoya ,  Kazue Nakamura ,  Saburou Hiraoka ,  Yasuko Uchino

    IPC: G03G9/097 ,  G03G9/08 ,  G03G13/06 ,  G03G13/00

    CPC classification number: G03G9/0819 ,  G03G9/0802 ,  G03G9/09708 ,  G03G9/09791 ,  G03G13/00 ,  G03G13/06

    Abstract: A toner for electrostatic latent image development of the present invention includes toner particles containing toner mother particles and an external additive. The external additive contains fatty acid metal salt particles, and a volume based particle diameter (size) distribution of the fatty acid metal salt particles has two peaks on a side of smaller size and a side of larger size, respectively. A volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of smaller size is 3.0 μm or smaller and a volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of larger size is larger than a volume based mean particle diameter of the toner mother particles.

    Abstract translation: 本发明的静电潜像显影用调色剂包括含有调色剂母粒和外用添加剂的调色剂颗粒。 外部添加剂含有脂肪酸金属盐颗粒，脂肪酸金属盐颗粒的体积基础粒径（粒径）分布在较小尺寸和较大尺寸侧具有两个峰。 具有较小尺寸侧面的峰的脂肪酸金属盐粒子的体积平均粒径为3.0μm以下，脂肪酸金属盐粒子的体积平均粒径在较大尺寸侧具有峰值 大于调色剂母粒子的基于体积的平均粒径。

    Toner for developing electrostatic image
    7.
    发明授权
    Toner for developing electrostatic image 有权

    公开(公告)号：US10203623B2

    公开(公告)日：2019-02-12

    申请号：US15799222

    申请日：2017-10-31

    Applicant: Konica Minolta, Inc.

    Inventor： Yasuko Uchino ,  Hitomi Motani ,  Tomomi Oshiba

    IPC: G03G9/09 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097

    Abstract: It is an object to suppress yellowing of a binder resin while obtaining an image with a high degree of whiteness and to suppress occurrence of image defects when printing at a high temperature and a high humidity.A toner for developing an electrostatic image, the toner including: white toner base particles containing a binder resin and titanium oxide having an average particle size of from 130 to 600 nm; and an external additive including strontium titanate.

    Image forming method
    8.
    发明授权
    Image forming method 有权

    公开(公告)号：US10114306B2

    公开(公告)日：2018-10-30

    申请号：US15468680

    申请日：2017-03-24

    Applicant: Konica Minolta, Inc.

    Inventor： Makoto Nomiya ,  Kaori Matsushima ,  Yasuko Uchino ,  Tomomi Oshiba

    IPC: G03G13/01 ,  G03G9/087 ,  G03G9/08 ,  G03G9/09 ,  G03G15/01

    Abstract: A high quality image excellent in low-temperature fixability and good in color stability can be formed by an image forming method of the present invention. In the image forming method, an image is formed by an electrophotographic method using toners of plural colors. Each of the toners of the plural colors contains a crystalline resin, methanol concentrations (%) at transmittance of 50% obtained for methanol wettability evaluation of the toners of the plural colors all fall in a range of 15 to 60%, and assuming that a maximum value and a minimum value of the methanol concentrations (%) at transmittance of 50% obtained for the methanol wettability evaluation of the toners of the plural colors are respectively WH (%) and WL (%), a relationship of 4≤WH−WL≤30 is satisfied.

    ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER
    9.
    发明申请
    ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER 审中-公开
    静电充电图像显影剂

    公开(公告)号：US20150309433A1

    公开(公告)日：2015-10-29

    申请号：US14682708

    申请日：2015-04-09

    Applicant: Konica Minolta Inc.

    Inventor： Ikuko SAKURADA ,  Satoshi Uchino ,  Yasuko Uchino ,  Shinya Obara ,  Futoshi Kadonome ,  Hiroyuki Kozuru

    IPC: G03G9/087 ,  G03G9/08

    CPC classification number: G03G9/08711 ,  G03G9/0819 ,  G03G9/08724 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/09725

    Abstract: An electrostatic charge image developing toner includes: toner matrix particles containing a binder resin; and an external additive added to the toner matrix particles, wherein the external additive includes joined particles each including a secondary particle including a plurality of spherical primary particles joined together, the joined particles include at least particles with a secondary particle size d2 in the range of 70 nm to 400 nm, and particles with a ratio d2/d1 in the range of 1.6 to 4.2 make up at least 50% by number of the particles with a secondary particle size d2 in the range of 70 nm to 400 nm, wherein d1 is the diameter of primary particles in the joined particle, and d2 is the secondary particle size.

    Abstract translation: 静电荷图像显影调色剂包括：含有粘合剂树脂的调色剂基质颗粒; 和添加到调色剂基质颗粒中的外部添加剂，其中外部添加剂包括各自包括连接在一起的包括多个球形初级颗粒的二次颗粒的接合颗粒，所接合的颗粒至少包括二次颗粒尺寸为d2的颗粒在 70nm〜400nm的范围，d2 / d1在1.6〜4.2的范围内的粒子的二次粒径d2在70nm〜400nm的范围内至少为50％，其中d1 是连接颗粒中一次颗粒的直径，d2是二次颗粒尺寸。

    IMAGE FORMING METHOD
    10.
    发明申请
    IMAGE FORMING METHOD 有权
    图像形成方法

    公开(公告)号：US20150248069A1

    公开(公告)日：2015-09-03

    申请号：US14628831

    申请日：2015-02-23

    Applicant: Konica Minolta, Inc.

    Inventor： Satoshi UCHINO ,  Shinya Obara ,  Yasuko Uchino ,  Ikuko Sakurada

    IPC: G03G9/08

    CPC classification number: G03G9/0819 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/09716 ,  G03G9/09725

    Abstract: An image forming method includes: charging a surface of an electrostatic latent image holder with a charging roller; exposing the charged surface so as to form an electrostatic latent image; and developing the formed electrostatic latent image with toner. The toner contains at least a toner base particle and an external additive minute particle. The external additive minute particle contains a silica-polymer composite minute particle. A silicon atom abundance ratio obtained from abundances of a carbon atom, an oxygen atom and a silicon atom present on an outermost surface and within 3 nm from the outermost surface in a depth direction of the silica-polymer composite minute particle are measured with an x-ray photoelectron spectrometer satisfies at least the following condition A. 15.0 atm %≦silicon atom abundance ratio ({Si/(C+O+Si)}×100)≦30.0 atm %   [Condition A]

    Abstract translation: 图像形成方法包括：利用充电辊对静电潜像保持器的表面进行充电; 暴露带电表面以形成静电潜像; 并用调色剂显影形成的静电潜像。 调色剂至少含有调色剂基础颗粒和外部添加剂微粒。 外部添加剂微粒包含二氧化硅 - 聚合物复合微粒。 从二氧化硅 - 聚合物复合微粒的深度方向的最外表面3nm以内，存在于最外表面的碳原子，氧原子和硅原子的丰度得到的硅原子丰度比用x -ray光电子能谱仪满足以下条件A. 15.0atm％＆nlE;硅原子丰度比（{Si /（C + O + Si）}×100）＆nlE; 30.0atm％[条件A]

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