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公开(公告)号：US20230042264A1
公开(公告)日：2023-02-09
申请号：US17807977
申请日：2022-06-21
Applicant: Konica Minolta, Inc.
Inventor： Shinichi HAMAGUCHI , Kosuke NAKAMURA
Abstract: Provided is a flame-retardant resin composition containing a thermoplastic resin and a polysaccharide, wherein the polysaccharide includes an acidic polysaccharide composed of one or more selected from the group consisting of a polysaccharide having an acidic functional group, a derivative of the polysaccharide having an acidic functional group in which a site other than the acidic functional group is modified, and a salt thereof; and a total number of the acidic functional group and the salt thereof per monosaccharide unit in the acidic polysaccharide is in the range of 0.2 to 1.5.
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公开(公告)号：US20160282742A1
公开(公告)日：2016-09-29
申请号：US15064040
申请日：2016-03-08
Applicant: Konica Minolta, Inc.
Inventor： Satoshi UCHINO , Shinya OBARA , Kosuke NAKAMURA
CPC classification number: G03G9/1133 , G03G9/0819 , G03G9/0821 , G03G9/0823 , G03G9/0827
Abstract: Provided is a two-component developer for developing an electrostatic latent image capable of stably printing a high-quality image.Disclosed is a two-component developer for developing an electrostatic latent image which contains toner particles and carrier particles having a core particle surface coated with a coating resin, in which a volume average particle size of the toner particles, an average magnetization of the core particle per one particle in an applied magnetic field of 1 kilooersted, a volume average particle size of the carrier particles, a volume resistivity, and an area ratio of the core particles exposed on the carrier particle surface are in a specific range.
Abstract translation: 公开了一种用于显影静电潜像的双组分显影剂，其包含调色剂颗粒和具有被涂覆树脂涂覆的核心颗粒表面的载体颗粒，其中调色剂颗粒的体积平均粒径，芯颗粒的平均磁化强度 在1千欧的施加磁场中的每一个颗粒，载体颗粒的体积平均粒径，体积电阻率和暴露在载体颗粒表面上的核心颗粒的面积比在特定范围内。
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公开(公告)号：US20160266508A1
公开(公告)日：2016-09-15
申请号：US15060039
申请日：2016-03-03
Applicant: Konica Minolta, Inc.
Inventor： Shinya OBARA , Satoshi UCHINO , Kosuke NAKAMURA
IPC: G03G9/08
CPC classification number: G03G9/0819 , G03G9/0827
Abstract: A two-component developer of the present invention contains toner particles and carrier particles. The number-average particle diameter of the toner particles ranges from 3.5 to 5.0 μm. The volume-average particle diameter of the carrier particles MDc is within a specific range in accordance with the percentage of relatively large toner particles having relatively low circularity.
Abstract translation: 本发明的双组分显影剂含有调色剂颗粒和载体颗粒。 调色剂颗粒的数均粒径为3.5-5.0μm。 载体颗粒MDc的体积平均粒径根据具有较低圆形度的较大调色剂颗粒的百分比在特定范围内。
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公开(公告)号：US20170139338A1
公开(公告)日：2017-05-18
申请号：US15283787
申请日：2016-10-03
Applicant: Konica Minolta, Inc.
Inventor： Kosuke NAKAMURA , Satoshi UCHINO , Koji SHIBATA
IPC: G03G9/113 , G03G9/08 , G03G9/09 , C09D133/12 , C09D133/10 , G03G9/093 , G03G9/087
CPC classification number: G03G9/1131 , C09D133/10 , C09D133/12 , G03G9/1133
Abstract: Provided is a method for producing a carrier for developing an electrostatic latent image, the carrier including carrier particles each including a core particle with a surface coated with a coating material including a resin, and the method including the steps of: a) obtaining first coating resin particles by polymerizing an alicyclic methacrylate monomer using, as a polymerization initiator, an azo compound having a nitrogen atom-containing substituent; b) obtaining second coating resin particles by polymerizing an alicyclic methacrylate monomer using a persulfate as a polymerization initiator; and c) forming carrier particles by coating surfaces of core particles with a coating material obtained by mixing at least the first and second coating resin particles.
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公开(公告)号：US20140205326A1
公开(公告)日：2014-07-24
申请号：US14155547
申请日：2014-01-15
Applicant: Konica Minolta, Inc.
Inventor： Kosuke NAKAMURA , Hiroyuki KOZURU , Yoshiyasu MATSUMOTO
CPC classification number: G03G15/0877 , G03G9/107 , G03G9/1075 , G03G15/0879 , G03G2215/0607
Abstract: A developing device includes a developer container, a developing unit, a developer outlet and a replenishment developer inlet. The developer container contains a developer composed of a toner and a first carrier. The developing unit develops an electrostatic latent image on an image carrier using the developer. The developer outlet discharges the developer. The replenishment developer inlet supplies a replenishment developer to the developer container. The replenishment developer includes a second carrier. A ratio of a poured bulk density of the second carrier to a poured bulk density of the first carrier ranges from 1.05 to 1.65.
Abstract translation: 显影装置包括显影剂容器，显影单元，显影剂出口和补充显影剂入口。 显影剂容器包含由调色剂和第一载体组成的显影剂。 显影单元使用显影剂在图像载体上显影静电潜像。 显影剂出口排出显影剂。 补货开发商入口将补充开发商提供给开发者容器。 补货开发商包括第二承运人。 第二载体的倾倒堆积密度与第一载体的倾倒体积密度的比值为1.05至1.65。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170329248A1
公开(公告)日：2017-11-16
申请号：US15581775
申请日：2017-04-28
Applicant: Konica Minolta, Inc.
Inventor： Kosuke NAKAMURA , Satoshi UCHINO , Futoshi KADONOME , Koji SHIBATA
CPC classification number: G03G9/1133 , G03G9/08755 , G03G9/08797 , G03G9/1075 , G03G9/1131 , G03G9/1139
Abstract: Provided is a carrier for electrostatic charge image development which provides a two-component developer having a high electric charge amount, a suppressed variation in an electric charge amount caused by an environmental change, and excellent durability, even if a low temperature fixable toner is used.A carrier for electrostatic charge image development of the present invention includes: carrier particles in which a core particle surface is coated with a coating material containing a resin, wherein the coating material contains phosphorus element, and the resin contains structural units derived from an alicyclic (meth)acrylic acid ester compound.
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公开(公告)号：US20140205327A1
公开(公告)日：2014-07-24
申请号：US14155614
申请日：2014-01-15
Applicant: Konica Minolta, Inc.
Inventor： Kosuke NAKAMURA , Hiroyuki Kozuru , Yoshiyasu Matsumoto
CPC classification number: G03G9/0832 , G03G9/0833 , G03G9/1075 , G03G9/1135 , G03G15/0879 , G03G2215/0607
Abstract: A developing device includes a developer container, a developing unit, a developer outlet and a replenishment developer inlet. The developer container contains a developer composed of a toner and a first carrier. The developing unit develops an electrostatic latent image on an image carrier using the developer. The developer outlet discharges the developer. The replenishment developer inlet supplies a replenishment developer to the developer container. The replenishment developer includes a second carrier. A ratio of a poured bulk density of the second carrier to a poured bulk density of the first carrier ranges from 0.60 to 0.95.
Abstract translation: 显影装置包括显影剂容器，显影单元，显影剂出口和补充显影剂入口。 显影剂容器包含由调色剂和第一载体组成的显影剂。 显影单元使用显影剂在图像载体上显影静电潜像。 显影剂出口排出显影剂。 补货开发商入口将补充开发商提供给开发者容器。 补货开发商包括第二承运人。 第二载体的倾倒堆积密度与第一载体的倾倒体积密度的比值为0.60至0.95。
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公开(公告)号：US20230348700A1
公开(公告)日：2023-11-02
申请号：US18299147
申请日：2023-04-12
Applicant: Konica Minolta, Inc.
Inventor： Shinichi HAMAGUCHI , Kosuke NAKAMURA , Tomoo SAKIMURA
CPC classification number: C08L5/08 , C08L55/02 , C08L2201/02 , C08L2203/30 , C08L2205/22
Abstract: An object of the present invention is to provide a flame-retardant-resin composition with improved flame resistance and impact resistance, a manufacturing method thereof, flame-retardant resin molded products, and a flame-retardant resin housing. The flame-retardant-resin composition of the present invention comprises a resin and a polysaccharide, wherein a sugar backbone in the polysaccharide has at least a basic functional group or a salt of the basic functional group. The flame-retardant resin composition of the present invention comprises a resin and a polysaccharide, wherein a sugar backbone in the polysaccharide has at least a basic functional group or a salt of the basic functional group.
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公开(公告)号：US20200255658A1
公开(公告)日：2020-08-13
申请号：US16713888
申请日：2019-12-13
Applicant: Konica Minolta, Inc.
Inventor： Kosuke NAKAMURA , Masashi MAMINO , Yo NAKAJIMA
Abstract: Provided is a resin composition containing a polycarbonate, a glass fiber, and an olefin-acrylate copolymer or an olefin-acrylic acid copolymer, wherein a mass ratio value (GF/OA) of a content of the glass fiber (GF) to a content of the olefin-acrylate copolymer or the olefin-acrylic acid copolymer (OA) is in the range of 1.0 to 6.0.
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公开(公告)号：US20160209770A1
公开(公告)日：2016-07-21
申请号：US14991299
申请日：2016-01-08
Applicant: Konica Minolta, Inc.
Inventor： Kosuke NAKAMURA , Satoshi UCHINO , Shinya OBARA
CPC classification number: G03G9/1133 , G03G9/0819 , G03G9/0823 , G03G9/0825 , G03G9/0827 , G03G9/08755 , G03G9/09385 , G03G9/10 , G03G9/107 , G03G9/113 , G03G9/1132
Abstract: A two-component developer for electrostatic latent image development includes: toner particles obtained in such a manner that an external additive is attached to a surface of toner base particles containing at least a binder resin; and carrier particles obtained in such a manner that a surface of core particles is coated with a resin for coating, wherein the toner particles have a volume-average particle size of 3 μm or more and 5 μm or less, the core particles have porosity of 8% or less, and the carrier particles have a volume-average particle size of 15 μm or more and 30 μm or less, volume resistivity of 1×108 Ω·cm or more and 1×1010 Ω·cm or less, a true specific gravity of 4.25 g/cm3 or more and 5 g/cm3 or less, and a shape factor SF-1 of 105 or more and 125 or less.
Abstract translation: 用于静电潜像显影的双组分显影剂包括：以使外部添加剂附着到至少含有粘合剂树脂的调色剂基础颗粒的表面的方式获得的调色剂颗粒; 和以这样一种方式获得的载体颗粒，使得芯颗粒的表面涂覆有用于涂覆的树脂，其中调色剂颗粒的体积平均粒径为3μm以上且5μm以下，芯颗粒的孔隙率为 8％以下，载体颗粒的体积平均粒径为15μm以上30μm以下，体积电阻率为1×10 8Ω·cm·cm以上，1×10 10Ω·cm·cm以下， 真比重为4.25g / cm 3以上且5g / cm 3以下，形状因子SF-1为105以上且125以下。
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