公开(公告)号：US20170090324A1

公开(公告)日：2017-03-30

申请号：US15267808

申请日：2016-09-16

Applicant: Konica Minolta, Inc.

Inventor： Futoshi KADONOME ,  Satoshi UCHINO ,  Shinya OBARA ,  Noriyuki KIMPARA ,  Ikuko SAKURADA ,  Takuya TAKAHASHI

IPC: G03G9/097 ,  G03G9/113 ,  G03G9/08 ,  G03G9/087 ,  G03G9/09

CPC classification number: G03G9/09783 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/0918 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/113 ,  G03G9/1133

Abstract: Provided is an electrostatic image developing toner including a toner mother particle containing a colorant and a binder resin comprising a crystalline resin and an amorphous resin; and an external additive. The external additive includes an inorganic fine particle having a number average major axis in a range of 50 to 100 nm, an average aspect ratio in a range of 3 to 10, and a volume resistivity in a range of 1×1010 to 1×1012 Ω·cm in primary particles.

公开(公告)号：US20190056679A1

公开(公告)日：2019-02-21

申请号：US16104534

申请日：2018-08-17

Applicant: Konica Minolta, Inc.

Inventor： Junya UEDA ,  Satoshi UCHINO ,  Shinya OBARA ,  Takuya TAKAHASHI

IPC: G03G9/097 ,  G03G9/113 ,  G03G9/087

Abstract: An electrostatic latent image developing toner includes toner particles having silica particles as an external additive on surfaces of toner base particles, wherein surfaces of a part or all of the silica particles are modified with silicone oil, and the following relational formula (1) is satisfied. 0.30≤Si(B)/Si(A)≤0.65  relational formula (1) [In the relational formula (1), Si(A) represents a NET intensity of a Si element contained in the electrostatic latent image developing toner, measured by a wavelength dispersive X-ray fluorescence analyzer. Si(B) represents a NET intensity of a Si element contained in the electrostatic latent image developing toner ultrasonically dispersed in water, measured by a wavelength dispersive X-ray fluorescence analyzer.]

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]

公开(公告)号：US20150010862A1

公开(公告)日：2015-01-08

申请号：US14323025

申请日：2014-07-03

Applicant: Konica Minolta, Inc.

Inventor： Yoshiyasu MATSUMOTO ,  Kosuke NAKAMURA ,  Satoshi UCHINO ,  Hidehito HARUKI ,  Hiroyuki KOZURU

IPC: G03G9/113 ,  G03G9/087

CPC classification number: G03G9/08755 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1135

Abstract: According to one implementation, a two-component developer for developing an electrostatic latent image includes a toner particle and a carrier particle. The toner particle includes an external additive on a surface of a toner mother particle including at least a binding resin. The carrier particle includes a resin covering layer on a surface of a carrier core material particle. The resin covering layer includes a covering resin obtained by polymerizing at least an isobutyl methacrylate monomer and includes a nitrogen atom as an atom composing the covering resin.

Abstract translation: 根据一个实施方案，用于显影静电潜像的双组分显影剂包括调色剂颗粒和载体颗粒。 调色剂颗粒包括至少包括粘合树脂的调色剂母粒表面上的外部添加剂。 载体颗粒在载体芯材颗粒的表面上包括树脂覆盖层。 树脂被覆层包括通过聚合至少一种甲基丙烯酸异丁酯单体而获得的包覆树脂，并且包括氮原子作为构成覆盖树脂的原子。

公开(公告)号：US20140363762A1

公开(公告)日：2014-12-11

申请号：US14288488

申请日：2014-05-28

Applicant: Konica Minolta, Inc.

Inventor： Kosuke NAKAMURA ,  Yoshiyasu MATSUMOTO ,  Satoshi UCHINO ,  Hidehito HARUKI ,  Hiroyuki KOZURU

IPC: G03G9/113

CPC classification number: G03G9/1139 ,  G03G9/08771 ,  G03G9/08791 ,  G03G9/0975 ,  G03G9/09775 ,  G03G9/1133 ,  G03G2215/0607

Abstract: A two-component developing agent for developing an electrostatic latent image includes toner particles composed of toner base particles and an exterior additive attached on the toner base particles, and carrier particles composed of carrier core particles and a coating resin provided on the carrier core particles. The coating resin includes a sulfur atom and a resin obtained by polymerizing an isobutyl methacrylate monomer, and the toner base particles include a sulfur atom.

Abstract translation: 用于显影静电潜像的双组分显影剂包括由调色剂基础颗粒和附着在调色剂基础颗粒上的外部添加剂构成的调色剂颗粒，以及由载体芯颗粒和设置在载体芯颗粒上的涂布树脂构成的载体颗粒。 涂料树脂包括硫原子和通过聚合甲基丙烯酸异丁酯单体获得的树脂，并且调色剂基础颗粒包括硫原子。

公开(公告)号：US20220075577A1

公开(公告)日：2022-03-10

申请号：US17391149

申请日：2021-08-02

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi UCHINO

IPC: G06F3/12 ,  G06F21/32 ,  G06F21/60 ,  G06K9/00 ,  H04N1/00

Abstract: An image forming apparatus includes: a first authenticator that extracts first feature information representing a feature of a face of a user from a face image of the user, and performs face authentication by comparing the first feature information extracted with second feature information representing a feature of the face of the user registered in advance; and a second authenticator that performs authentication of the user by comparing first motion information representing a predetermined motion performed by the user with second motion information representing the predetermined motion of the user registered in advance when at least a part of the information does not match between the first feature information and the second feature information in the face authentication by the first authenticator.

公开(公告)号：US20200241820A1

公开(公告)日：2020-07-30

申请号：US16775831

申请日：2020-01-29

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi UCHINO

IPC: G06F3/12 ,  G10L15/22

Abstract: An image forming apparatus includes: a controller that controls the image forming apparatus; a memory that stores noise levels produced by a plurality of devices constituting the image forming apparatus during operation of the devices; and a microphone that accepts a speech instruction for the image forming apparatus. The controller accepts a job, detects a speech level from the speech accepted by the microphone, compares the detected speech level with a noise level that corresponds to the job to be executed in the image forming apparatus and that has been read from the memory, and controls, based on a result of the comparison, which one of a process of accepting the speech instruction and a process of executing the job in the image forming apparatus should be preferentially performed.

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

IPC: G03G9/113 ,  G03G9/08 ,  G03G9/093

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。

公开(公告)号：US20160202625A1

公开(公告)日：2016-07-14

申请号：US14990409

申请日：2016-01-07

Applicant: Konica Minolta, Inc.

Inventor： Shinya OBARA ,  Satoshi UCHINO ,  Kosuke NAKAMURA

IPC: G03G9/113 ,  G03G9/08

CPC classification number: G03G9/1132 ,  G03G9/0819 ,  G03G9/0827

Abstract: Disclosed is a two-component developer containing toner particles and carrier particles. The number-average particle diameter of the toner particles MDt ranges from 3.5 to 5.0 μm. The MDt of the toner particles and the volume-average particle diameter of the carrier particles MDc are at a specific ratio, and spherical fine toner particles in the toner particles and fine carrier particles in the carrier particles exist at specific percentages.

Abstract translation: 公开了含有调色剂颗粒和载体颗粒的双组分显影剂。 调色剂颗粒MDt的数均粒径为3.5-5.0μm。 调色剂颗粒的MDt和载体颗粒MDc的体积平均粒径为特定比例，并且调色剂颗粒中的球形微调色剂颗粒和载体颗粒中的细载体颗粒以特定百分比存在。

公开(公告)号：US20150316889A1

公开(公告)日：2015-11-05

申请号：US14683818

申请日：2015-04-10

Applicant: Konica Minolta, Inc.

Inventor： Satoshi UCHINO ,  Kosuke NAKAMURA ,  Futoshi KADONOME ,  Koji SHIBATA

IPC: G03G9/00 ,  G03G21/00

CPC classification number: G03G21/0094 ,  G03G9/08724 ,  G03G9/08755 ,  G03G9/08773 ,  G03G9/09716 ,  G03G9/09725

Abstract: A process of forming an image includes the steps of: developing an electrostatic latent image with a toner, the latent image being formed through charge of the surface of an electrostatic latent image carrier and exposure of the surface to light; and applying a lubricant onto the surface of the electrostatic latent image carrier. The toner includes a toner matrix particle and an external additive nanoparticle. The external additive nanoparticle comprises a silica-polymer composite nanoparticle. A percentage of atomic silicon present on the surface of the silica-polymer composite nanoparticle satisfies Condition A expressed by Expression: 15.0 atm %≦percentage of atomic silicon ({Si/(C+O+Si)}×100)≦30.0 atm %. The percentage of atomic silicon is determined from total amounts of atomic carbon, oxygen, and silicon present on the topmost surface of the silica-polymer composite nanoparticle and within 3 nm inwards from the topmost surface.

Abstract translation: 形成图像的过程包括以下步骤：用调色剂显影静电潜像，通过电荷静电潜像载体的表面形成潜像并将表面暴露于光; 以及将润滑剂涂敷在静电潜像载体的表面上。 调色剂包括调色剂基质颗粒和外部添加剂纳米颗粒。 外部添加剂纳米颗粒包含二氧化硅 - 聚合物复合纳米颗粒。 存在于二氧化硅 - 聚合物复合纳米颗粒表面上的原子硅的百分比满足由表达式：15.0atm％＆nlE表示的条件A;原子硅百分比（{Si /（C + O + Si）}×100）＆nlE; 30.0 atm％。 原子硅的百分比由二氧化硅 - 聚合物复合纳米颗粒的最上表面上存在的原子碳，氧和硅的总量确定，并且从最上表面开始在3nm以内。