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    ELECTROSTATIC IMAGE DEVELOPING TONER AND IMAGE FORMING METHOD
    1.
    发明申请
    ELECTROSTATIC IMAGE DEVELOPING TONER AND IMAGE FORMING METHOD 审中-公开

    公开(公告)号：US20200264529A1

    公开(公告)日：2020-08-20

    申请号：US16744357

    申请日：2020-01-16

    Applicant: Konica Minolta, Inc.

    Inventor： Seijiro TAKAHASHI ,  Kouji SUGAMA ,  Haruo HORIGUCHI ,  Yukiko KUSANO ,  Toyoko SHIBATA

    IPC: G03G9/087

    Abstract: Provided is an electrostatic image developing toner including toner particles containing a light phase transition material that change from a solid state to a liquid state by light irradiation and a binder resin, wherein ΔH1 (J/g) is 0.1 or more, provided that ΔH1 (J/g) is an endothermic amount based on a melting peak derived from the light phase transition material in a first temperature raising process of raising a temperature from 25 to 200° C., the endothermic amount being obtained from a DSC curve measured by differential scanning calorimtry to the electrostatic image developing toner.

    ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND TWO-COMPONENT DEVELOPER
    3.
    发明申请
    ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND TWO-COMPONENT DEVELOPER 审中-公开

    公开(公告)号：US20190294067A1

    公开(公告)日：2019-09-26

    申请号：US16295487

    申请日：2019-03-07

    Applicant: Konica Minolta, Inc.

    Inventor： Kouji SUGAMA ,  Kazumi OURA ,  Masaharu MATSUBARA ,  Ikuko SAKURADA

    IPC: G03G9/087 ,  G03G9/113

    Abstract: The electrostatic charge image developing toner of the present invention is an electrostatic charge image developing toner including a toner mother particle including at least a binding resin, and an external additive attached onto a surface of the toner mother particle, wherein a median size on a volume basis of the toner mother particle is in the range from 3.0 to 5.0 μm, the binding resin contains at least an amorphous polyester resin as a main component, and a spherical silica particle (1) having a number average particle size in the range from 20 to 55 nm is included as the external additive.

    ELECTROSTATIC LATENT IMAGE DEVELOPING TONER
    4.
    发明申请
    ELECTROSTATIC LATENT IMAGE DEVELOPING TONER 审中-公开

    公开(公告)号：US20180088477A1

    公开(公告)日：2018-03-29

    申请号：US15710259

    申请日：2017-09-20

    Applicant: Konica Minolta, Inc.

    Inventor： Kaori MATSUSHIMA ,  Noboru UEDA ,  Shiro HIRANO ,  Kouji SUGAMA

    IPC: G03G9/087 ,  G03G9/08

    CPC classification number: G03G9/08755 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08728 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

    Abstract: An electrostatic latent image developing toner includes toner particles which comprises a binder resin and a releasing agent. A main component of the binder resin is a polyester resin. The binder resin comprises a crystalline polyester resin, an amorphous polyester resin and a hybrid vinyl resin. The hybrid vinyl resin is composed of a vinyl polymer segment and at least one segment selected from a polyester polymer segment, an urethane polymer segment and an urea polymer segment which is chemically bound to the vinyl polymer segment. A main component of the hybrid vinyl resin is the vinyl polymer segment which comprises a structural unit derived from a monomer having a specific structure. A tetrahydrofuran-soluble fraction of the toner has a main peak of a molecular weight distribution measured by gel permeation chromatography within the range of 11000 to 30000.

    TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT
    8.
    发明申请
    TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT 有权
    静电图像发展的调色剂

    公开(公告)号：US20130280650A1

    公开(公告)日：2013-10-24

    申请号：US13867242

    申请日：2013-04-22

    Applicant: KONICA MINOLTA, INC.

    Inventor： Kouji SUGAMA ,  Hiroshi NAGASAWA ,  Hiroyuki KONNO ,  Takako KAWAMURA

    IPC: G03G9/087

    CPC classification number: G03G9/08711 ,  G03G9/0806 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09392

    Abstract: There is provided a toner for electrostatic-image development that can obtain low-temperature fixing property, heat-resistant storability and long-term stability of charging while having excellent low-temperature fixing property.A toner for electrostatic-image development is formed with toner particles containing a binder resin and a crystalline ester compound, the crystalline ester compound has a linear-chain structure, and the binder resin contains a styrene-acrylic resin including a structural unit derived from an acrylic ester monomer represented by general formula (1) below. Meanwhile, in the general formula (1), R1 represents a hydrogen atom or a methyl group, and R2 represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms or an aryl group having 6 to 15 carbon atoms. m represents 2 or 3, and n represents an integer of 1 to 25.

    Abstract translation: 提供了一种用于静电图像显影的调色剂，其可以获得低温定影性，耐热储存性和充电的长期稳定性，同时具有优异的低温定影性能。 用含有粘结剂树脂和结晶酯化合物的调色剂颗粒形成用于静电图像显影的调色剂，结晶酯化合物具有直链结构，并且粘合剂树脂含有苯乙烯 - 丙烯酸树脂，其包含衍生自 丙烯酸酯单体，由下述通式（1）表示。 另外，通式（1）中，R 1表示氢原子或甲基，R 2表示氢原子，碳原子数1〜16的烷基或碳原子数6〜15的芳基。 m表示2或3，n表示1〜25的整数。

    PLATEMAKING APPARATUS AND PLATEMAKING METHOD
    10.
    发明申请
    PLATEMAKING APPARATUS AND PLATEMAKING METHOD 有权

    公开(公告)号：US20220009220A1

    公开(公告)日：2022-01-13

    申请号：US17353746

    申请日：2021-06-21

    Applicant: Konica Minolta, Inc.

    Inventor： Kouji SUGAMA ,  Kazuhiko NAKAJIMA ,  Kengo IKEDA

    IPC: B41C1/10 ,  B41C1/055 ,  B41N3/00

    Abstract: The platemaking apparatus according to the present invention forms a pattern on an ink film-forming press plate that has a surface layer containing a stimulus-responsive compound whose physical property can reversibly change in response to an external stimulus. The platemaking apparatus includes: a first stimulator that applies, to a surface of the press plate, a first stimulus that changes the physical property of the surface from a first physical property to a second physical property to form the pattern, on the basis of image data; a second stimulator that applies, to the surface of the press plate, a second stimulus that changes the physical property of the surface from the second physical property to the first physical property, to erase the pattern; and a cleaning unit that removes an ink remained on the surface of the press plate.

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