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公开(公告)号：US20200150551A1
公开(公告)日：2020-05-14
申请号：US16590712
申请日：2019-10-02
Applicant: Konica Minolta, Inc.
Inventor： Takanari KAYAMORI , Masaharu MATSUBARA , Naoya TONEGAWA , Atsushi IIOKA
Abstract: An electrostatic image developing toner includes toner base particles, wherein the toner base particles contain: an amorphous polyester resin; a crystalline resin; and o-acetoacetaniside, and the content of the o-acetoacetaniside in the toner base particles is 0.1 ppm by mass or more and 200 ppm by mass or less.
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公开(公告)号：US20160313661A1
公开(公告)日：2016-10-27
申请号：US15087210
申请日：2016-03-31
Applicant: Konica Minolta, Inc.
Inventor： Kouji SEKIGUCHI , Shiro HIRANO , Naoya TONEGAWA , Masaharu MATSUBARA , Atsushi IIOKA
CPC classification number: G03G9/09733 , G03G9/08711
Abstract: A particulate toner for developing electrostatically charged image includes a binder resin, a colorant, a mold release agent and a plasticizer. The binder resin comprises a styrene-acrylic resin. A relationship represented by Expression Ac
Abstract translation: 用于显影静电荷图像的微粒调色剂包括粘合剂树脂，着色剂，脱模剂和增塑剂。 粘合剂树脂包括苯乙烯 - 丙烯酸树脂。 由表达式Ac
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公开(公告)号：US20220350269A1
公开(公告)日：2022-11-03
申请号：US17726159
申请日：2022-04-21
Applicant: Konica Minolta, Inc.
Inventor： Yuya KUBO , Takanari KAYAMORI , Naoya TONEGAWA , Noboru UEDA
Abstract: Disclosed is an electrostatic charge image developing toner including: toner base particles containing at least a binder resin and a magnetic material; and an external additive, wherein the binder resin contains a crystalline resin; and the external additive contains strontium titanate particles doped with metal elements other than titanium and strontium.
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4.发明申请ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND FULL COLOR TONER SET FOR DEVELOPING ELECTROSTATIC IMAGE 有权电子图像形成方法和全彩色调色剂设置用于开发静电图像公开(公告)号：US20170045835A1
公开(公告)日：2017-02-16
申请号：US15209866
申请日：2016-07-14
Applicant: Konica Minolta, Inc.
Inventor： Shiro HIRANO , Naoya TONEGAWA , Masaharu MATSUBARA , Kouji SEKIGUCHI , Atsushi IIOKA
IPC: G03G9/00
CPC classification number: G03G9/092 , G03G9/08711 , G03G9/08755 , G03G9/08786 , G03G9/08797 , G03G9/0904 , G03G9/091 , G03G9/0918 , G03G15/0121
Abstract: Provided is a method of forming an electrophotographic image using a plurality of color toners, the method containing: a charging step; an exposing step; a developing step; and a transferring step, wherein the plurality of color toners each respectively contain toner particles including a binder resin, a coloring agent, a releasing agent, and a crystalline resin; the binder resin contains an amorphous vinyl polymer formed with a vinyl monomer; the toner particles contain the amorphous vinyl polymer in the range of 10 to 90 mass %; and a maximum value of an acid value difference of the color toners is in the range of 1 to 10 mg KOH/g.
Abstract translation: 提供了使用多种彩色调色剂形成电子照相图像的方法，该方法包括：充电步骤; 曝光步骤 发展步骤; 和转印步骤，其中多个彩色调色剂各自分别含有包含粘合剂树脂，着色剂，脱模剂和结晶树脂的调色剂颗粒; 粘合剂树脂含有由乙烯基单体形成的无定形乙烯基聚合物; 调色剂颗粒含有10至90质量％范围内的无定形乙烯基聚合物; 并且彩色调色剂的酸值差的最大值在1至10mg KOH / g的范围内。
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公开(公告)号：US20180088481A1
公开(公告)日：2018-03-29
申请号：US15710327
申请日：2017-09-20
Applicant: Konica Minolta, Inc.
Inventor： Takanari KAYAMORI , Masaharu MATSUBARA , Naoya TONEGAWA , Kouji IZAWA , Atsushi IIOKA
CPC classification number: G03G9/09716 , G03G9/0806 , G03G9/0819 , G03G9/0823 , G03G9/0827 , G03G9/0832 , G03G9/0833 , G03G9/08722 , G03G9/08755 , G03G9/08782 , G03G9/0902 , G03G9/0926 , G03G9/09725
Abstract: An electrostatic charge image developing white toner according to the present invention includes toner base particles including rutile type titanium oxide particles as colorant and a binder resin. The rutile type titanium oxide particles are composed of two groups Ga and Gb of rutile type titanium oxide particles have different volume particle size distribution. A volume particle size distribution curve of the rutile type titanium oxide particles represents diameter on a horizontal axis and volume ratio on a vertical axis and has two main peaks. Diameters Da and Db of peak top positions of the two main peaks are respectively within a range of 100 to 500 nm, and satisfy following Relational expressions: 25 nm≦Db−Da≦200 nm (Relational expression 1): (mass of Ga):(mass of Gb)=5:95 to 30:70 (Relational expression 2):
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Patent Agency Ranking
公开(公告)号：US20170255115A1
公开(公告)日：2017-09-07
申请号：US15440573
申请日：2017-02-23
Applicant: Konica Minolta, Inc.
Inventor： Naoya TONEGAWA , Takanari Kayamori , Masaharu Matsubara , Kouji Sekiguchi , Atsushi Iioka
CPC classification number: G03G9/09392 , G03G9/09321 , G03G9/09328 , G03G9/09364 , G03G9/09371
Abstract: A method of producing a toner for developing electrostatic images includes Steps I to III is provided. The toner includes a toner matrix particle having a core-shell structure. The toner matrix particle includes a core particle including an amorphous resin A and a crystalline material, and a shell including an amorphous resin B. The shell includes a phase of the amorphous resin B that is not fused with the core particle at the interface. The amorphous resin A differs from the amorphous resin B.
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7.发明申请TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND MANUFACTURING METHOD THEREOF 有权用于开发静电影像的调色剂及其制造方法公开(公告)号：US20150072285A1
公开(公告)日：2015-03-12
申请号：US14476090
申请日：2014-09-03
Applicant: Konica Minolta, Inc.
Inventor： Junichi FURUKAWA , Shiro HIRANO , Kenshi MIYAJIMA , Naoya TONEGAWA , Asao MATSUSHIMA , Tatsuya NAGASE
CPC classification number: G03G9/0827 , G03G9/0804 , G03G9/0821 , G03G9/0825 , G03G9/08711 , G03G9/08755
Abstract: According to one implementation, a toner includes a toner mother particle and a convex portion on a surface of the toner mother particle. The toner mother particle includes at least a resin (1). The convex portion is formed from a resin particle including at least a resin (2). An average value of a length of a long side of the convex portion is within a range of 0.1 to 0.5 μm. A ratio between a Young's modulus of a non-convex portion of the toner mother particle (ER (1)) and a Young's modulus of a convex portion of the toner mother particle (ER (2)) is a value (ER (1)/ER (2)) within the range of 1.2 to 2.0.
Abstract translation: 根据一个实施方式，调色剂包括调色剂母粒子和调色剂母粒子表面上的凸起部分。 调色剂母粒包括至少一种树脂（1）。 凸部由至少包含树脂（2）的树脂颗粒形成。 凸部的长边的长度的平均值在0.1〜0.5μm的范围内。 调色剂母粒子（ER（1））的非凸部的杨氏模量与调色剂母粒子（ER（2））的凸部的杨氏模量之比为ER（1） / ER（2））在1.2至2.0的范围内。
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公开(公告)号：US20180284631A1
公开(公告)日：2018-10-04
申请号：US15934472
申请日：2018-03-23
Applicant: Konica Minolta, Inc.
Inventor： Takanari KAYAMORI , Masaharu MATSUBARA , Naoya TONEGAWA , Kouji IZAWA , Atsushi IIOKA
CPC classification number: G03G9/0924 , G03G9/08755 , G03G9/091 , G03G9/092
Abstract: To provide a magenta toner for electrostatic charge image development including a crystalline polyester resin and an amorphous resin as a binder resin, which is a means for improving low temperature fixability, scattering properties, GI value, saturation, and light fastness.A magenta toner for electrostatic charge image development including an amorphous resin and a crystalline polyester resin as a binder resin, wherein predetermined quinacridone-based pigment, metal element-containing monoazo pigment, and naphthol AS-based pigment are included as a coloring agent, and the combined content of the quinacridone-based pigment and the metal element-containing monoazo pigment is 50-90% by mass of the total coloring agent.
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公开(公告)号：US20160109818A1
公开(公告)日：2016-04-21
申请号：US14883167
申请日：2015-10-14
Applicant: Konica Minolta, Inc.
Inventor： Aya SHIRAI , Tatsuya NAGASE , Junya ONISHI , Tatsuya FUJISAKI , Naoya TONEGAWA , Junichi FURUKAWA
CPC classification number: G03G9/08755 , G03G9/0821 , G03G9/08791 , G03G9/08795 , G03G9/08797 , G03G9/093 , G03G9/09335
Abstract: An electrostatic image developing toner includes toner particles that contain coloring particles containing a binder resin, a coloring agent and a releasing agent. The binder resin includes an amorphous resin and a crystalline polyester resin. The toner satisfies Relations (1) and (2). ΔH1 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a first heating step. ΔH2 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a second heating step. ΔH0 is the value of the amount of heat absorption based on a melting peak of the crystalline polyester resin in the second heating step, multiplied by the ratio of the crystalline polyester introduced in the electrostatic image developing toner. 0.43
Abstract translation: 静电图像显影调色剂包括含有着色颗粒的调色剂颗粒，所述着色颗粒含有粘合剂树脂，着色剂和脱模剂。 粘合剂树脂包括无定形树脂和结晶聚酯树脂。 调色剂满足关系（1）和（2）。 ＆Dgr; H1是在第一加热步骤中基于结晶性聚酯树脂的熔融峰的吸热量。 ＆Dgr; H2是在第二加热步骤中基于结晶聚酯树脂的熔融峰的吸热量。 ＆Dgr; H 0是基于第二加热步骤中的结晶性聚酯树脂的熔融峰的吸热量乘以静电图像显影调色剂中引入的结晶性聚酯的比例的值。 0.43 <＆Dgr; H1 /＆Dgr; H0 <0.95关系（1）：0.45 <＆Dgr; H2 /＆Dgr; H1 <1.20关系（2）：
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10.发明申请TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND PROCESS FOR PRODUCING THE SAME 有权用于开发静电影像的调色剂及其制造方法公开(公告)号：US20160070188A1
公开(公告)日：2016-03-10
申请号：US14846038
申请日：2015-09-04
Applicant: Konica Minolta, Inc.
Inventor： Tatsuya FUJISAKI , Junya ONISHI , Naoya TONEGAWA , Shiro HIRANO , Hidehito HARUKI , Tatsuya NAGASE
CPC classification number: G03G9/08755 , G03G9/0806
Abstract: The toner according to the present invention comprises a matrix phase composed of a vinyl resin, and domain phases composed of a non-crystalline polyester resin dispersed in the matrix phase, and a number-average domain diameter of the domain phases composed of the non-crystalline polyester resin is 30 to 150 nm. The toner satisfies relation represented by a specific requirement of the total area of the domain phases present in a surface layer area of the toner particle, and the total area of the domain phases present in areas other than the surface layer area, in a given cross-section of the toner particle.
Abstract translation: 根据本发明的调色剂包括由乙烯基树脂构成的基体相和由分散在基体相中的非结晶性聚酯树脂构成的结晶相，以及由非晶态相组成的畴相的数均分子直径， 结晶性聚酯树脂为30〜150nm。 调色剂满足关于存在于调色剂颗粒的表面层区域中的畴相的总面积和存在于表面层以外的区域中的畴相的总面积的特定要求的关系 调色剂颗粒。
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