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1. 发明授权

US09880481B2 Liquid developer set 有权
公开(公告)号：US09880481B2
公开(公告)日：2018-01-30
申请号：US14492128
申请日：2014-09-22
申请人： Konica Minolta, Inc.
发明人： Keiko Momotani , Naoki Yoshie , Yukiko Uno , Masaaki Oka
IPC分类号： G03G9/13 , G03G9/093 , G03G9/12
CPC分类号： G03G9/131 , G03G9/09321 , G03G9/09364 , G03G9/09392 , G03G9/122 , G03G9/13
摘要： A liquid developer set of the present invention includes a first liquid developer including an insulating liquid and first toner particles and a second liquid developer including an insulating liquid and second toner particles, the first toner particles include carbon black and a first resin, the second toner particles include a coloring agent other than carbon black and a second resin, without including carbon black, the first resin and the second resin each include a hydrocarbon long chain which is a hydrocarbon group having a carbon number of 8 to 30, and a mass ratio of the hydrocarbon long chain to the first toner particles is higher than a mass ratio of the hydrocarbon long chain to the second toner particles.

2. 发明申请

US20140234770A1 LIQUID DEVELOPER 审中-公开
标题翻译：液体开发商
公开(公告)号：US20140234770A1
公开(公告)日：2014-08-21
申请号：US14184905
申请日：2014-02-20
申请人： Konica Minolta, Inc.
发明人： Miyuki HOTTA , Masahiro Anno , Naoki Yoshie , Keiko Momotani , Sho Kim , Yukiko Uno , Satoshi Matsumoto
IPC分类号： G03G9/12
CPC分类号： G03G9/12 , G03G9/0819 , G03G9/125
摘要： A liquid developer includes an insulating liquid and a plurality of toner particles. The plurality of toner particles has a volume-based median size not smaller than 0.5 μm and not greater than 3 μm as a whole, and a volume-based coefficient of variation not lower than 40% and not higher than 130%. The plurality of toner particles includes a first toner particle group of the toner particles having a particle size not greater than 1 μm. The number of toner particles constituting the first toner particle group occupies not lower than 20% of the total number of toner particles. The toner particles in the first toner particle group have an average circularity not smaller than 0.945.
摘要翻译：液体显影剂包括绝缘液体和多个调色剂颗粒。多个调色剂颗粒的体积基准中值粒径整体不小于0.5μm且不大于3μm，体积基准变异系数不低于40％且不高于130％。多个调色剂颗粒包括粒径不大于1μm的调色剂颗粒的第一调色剂颗粒组。构成第一调色剂颗粒组的调色剂颗粒的数量不低于调色剂颗粒总数的20％。第一调色剂颗粒组中的调色剂颗粒的平均圆形度不小于0.945。

3. 发明授权

US10761466B2 Fixing device for setting the glossiness of the toner image 有权
公开(公告)号：US10761466B2
公开(公告)日：2020-09-01
申请号：US16433770
申请日：2019-06-06
申请人： Konica Minolta, Inc.
发明人： Chiaki Yamada , Naoki Yoshie , Hirofumi Nakagawa
IPC分类号： G03G15/20 , G03G15/16 , G03G15/10
摘要： A fixing device includes: a fixing member that heats a toner image formed on a recording sheet in order to fix the toner image on the recording sheet; a pressurizing member that nips the recording sheet together with the fixing member to pressurize the toner image on the recording sheet; a heater that heats the pressurizing member; and a hardware processor that controls a heating temperature of the pressurizing member by the heater, wherein the hardware processor acquires setting of glossiness of the toner image and controls the heating temperature to be higher as the glossiness in the setting is lower.

4. 发明授权

US09989906B2 Fixing device, image forming apparatus, and method of controlling image forming apparatus 有权
公开(公告)号：US09989906B2
公开(公告)日：2018-06-05
申请号：US15427620
申请日：2017-02-08
申请人： Konica Minolta, Inc.
发明人： Naoki Yoshie , Chiaki Yamada , Toru Kikuchi
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G2215/0132 , G03G2215/2032
摘要： A control unit is configured to control torque of a fixing motor and torque of a pressing motor such that tangential force at a part holding paper in cooperation with a fixing member in a pressing member is equal to or greater than tangential force at a part holding paper in cooperation with the pressing member in the fixing member, and that the relation between the tangential force at the part of the pressing member and the tangential force at the part of the fixing member changes in accordance with the smoothness of paper.

5. 发明授权

US09703224B2 Liquid developer 有权
公开(公告)号：US09703224B2
公开(公告)日：2017-07-11
申请号：US14857153
申请日：2015-09-17
申请人： Konica Minolta, Inc.
发明人： Naoki Yoshie
IPC分类号： G03G9/00 , G03G9/13
CPC分类号： G03G9/132
摘要： A liquid developer contains an insulating liquid and toner particles dispersed in the insulating liquid. The toner particles have a resin and a coloring agent. The resin contains at least 5 mass % and at most 30 mass % of an aliphatic polyester resin and at least 70 mass % and at most 95 mass % of an aromatic polyester resin. A difference in acid value between the aliphatic polyester resin and the aromatic polyester resin is not less than 15 mgKOH/g and not more than 100 mgKOH/g.

6. 发明授权

US09494898B2 Image formation method and image formation apparatus 有权
标题翻译：图像形成方法和图像形成装置
公开(公告)号：US09494898B2
公开(公告)日：2016-11-15
申请号：US14636258
申请日：2015-03-03
申请人： Konica Minolta, Inc.
发明人： Kunitomo Sasaki , Naoki Yoshie , Masahiro Anno
IPC分类号： G03G13/00 , G03G15/20 , G03G13/20 , G03G13/22 , G03G9/13 , G03G9/087 , G03G9/093
CPC分类号： G03G15/2053 , G03G9/08755 , G03G9/08764 , G03G9/08791 , G03G9/08795 , G03G9/08797 , G03G9/09321 , G03G9/09371 , G03G9/13 , G03G13/20 , G03G13/22 , G03G15/2064
摘要： An image formation method includes a step of preparing an electrostatic latent image developer, a transferring step, and a fixation step. The step of preparing an electrostatic latent image developer includes a step of preparing an electrostatic latent image developer containing toner particles having prescribed viscoelasticity characteristics. The fixation step includes steps of heating a recording medium and fixing the toner particles to the recording medium at a pressure not lower than 200 kPa and not higher than 800 kPa.
摘要翻译：图像形成方法包括制备静电潜像显影剂，转印步骤和固定步骤的步骤。制备静电潜像显影剂的步骤包括制备含有具有规定粘弹性特性的调色剂颗粒的静电潜像显影剂的步骤。固定步骤包括加热记录介质并在不低于200kPa且不高于800kPa的压力下将调色剂颗粒固定在记录介质上的步骤。

7. 发明申请

US20150277257A1 LIQUID DEVELOPER AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：液体开发商及其制造方法
公开(公告)号：US20150277257A1
公开(公告)日：2015-10-01
申请号：US14431004
申请日：2013-09-11
申请人： Konica Minolta, Inc.
发明人： Yukiko Uno , Satoshi Matsumoto , Naoki Yoshie , Miyuki Hotta
IPC分类号： G03G9/13 , G03G9/08
CPC分类号： G03G9/13 , G03G9/0804 , G03G9/093 , G03G9/12
摘要： A liquid developer in which toner particles are dispersed in an insulating liquid, the toner particles having such a core-shell structure that shell particles containing a shell resin are attached to or cover surfaces of core particles containing a core resin, the core resin having an acid group and an acid dissociation constant not smaller than 2.90 and not greater than 8.00, and a method for manufacturing the same are provided. The toner particles can have a volume average particle size not smaller than 0.01 μm and not greater than 100 μm and a coefficient of variation of volume distribution not lower than 1% and not higher than 100%. This liquid developer has excellent fixability which allows adaptation to various recording materials, can be fixed in a wide temperature range, and is extremely low in deterioration in fixability during storage.
摘要翻译：其中调色剂颗粒分散在绝缘液体中的液体显影剂，具有壳壳结构的调色剂颗粒包含壳树脂的壳颗粒附着或覆盖包含芯树脂的芯颗粒的表面，芯树脂具有酸基，酸解离常数不小于2.90且不大于8.00，并提供其制造方法。调色剂颗粒可以具有不小于0.01μm且不大于100μm的体积平均粒径，并且体积分布的变异系数不低于1％且不高于100％。这种液体显影剂具有优异的定影性，其可适应各种记录材料，可以在宽的温度范围内固定，并且在保存期间定影性的劣化极低。

8. 发明授权

US10558159B2 Image forming device and method for controlling the same 有权
公开(公告)号：US10558159B2
公开(公告)日：2020-02-11
申请号：US16207608
申请日：2018-12-03
申请人： Konica Minolta Inc.
发明人： Naoki Yoshie , Chiaki Yamada
IPC分类号： G03G15/20 , G03G15/00
摘要： An image forming device includes: a fixing unit that fixes an image formed on a recording medium; a heating unit that heats a recording medium that has been subjected to a fixing process by the fixing unit; and a controller that sets a glossiness of an image on a recording medium, wherein the controller controls a heating amount with the heating unit depending on the set glossiness.

9. 发明授权

US09316939B2 Liquid developer 有权
标题翻译：液体显影剂
公开(公告)号：US09316939B2
公开(公告)日：2016-04-19
申请号：US14481039
申请日：2014-09-09
申请人： Konica Minolta, Inc.
发明人： Nofumi Mizumoto , Naoki Yoshie , Yuya Iwagoe , Satoshi Matsumoto
IPC分类号： G03G9/13 , G03G9/093 , G03G9/125
CPC分类号： G03G9/132 , G03G9/09307 , G03G9/09371 , G03G9/125
摘要： A liquid developer is obtained by dispersing toner particles containing a core resin, a shell resin different from the core resin, and a coloring agent in an insulating liquid. The core resin contains a crystalline urethane-modified polyester resin. A solid content of the liquid developer corresponding to a portion of the liquid developer excluding the insulating liquid has a storage elastic modulus at 80° C., not lower than 1×104 Pa and not higher than 5×106 Pa. A lowest temperature at the time when an absolute value of an amount of change in a logarithmic value (log(G′)) of a storage elastic modulus (G′) of the solid content of the liquid developer with respect to a temperature T (° C.) (|Δ log(G′)/ΔT|) satisfies an Equation (1) below is not lower than 45° C.: |Δ log(G′)/ΔT|>0.1 Equation (1).
摘要翻译：通过将包含芯树脂，不同于芯树脂的壳树脂的调色剂颗粒和着色剂分散在绝缘液体中来获得液体显影剂。核心树脂含有结晶聚氨酯改性的聚酯树脂。对应于除绝缘液体以外的液体显影剂的一部分的液体显影剂的固体含量在80℃，不低于1×104Pa且不高于5×10 6 Pa的储能弹性模量为最低，液体显影剂的固体成分相对于温度T（℃）的储能弹性模量（G'）的对数值（log（G'））的变化量的绝对值的绝对值的时间（|＆Dgr; log（G'）/＆Dgr; T |）满足以下等式（1）不低于45°C：|＆Dgr; log（G'）/＆Dgr; T |> 0.1等式（1）。

10. 发明授权

US09169414B2 Liquid developer and method for manufacturing the same 有权
标题翻译：液体显影剂及其制造方法
公开(公告)号：US09169414B2
公开(公告)日：2015-10-27
申请号：US14030262
申请日：2013-09-18
申请人： Konica Minolta, Inc.
发明人： Yukiko Uno , Satoshi Matsumoto , Naoki Yoshie , Kenji Hayashi
IPC分类号： G03G9/13 , C09D11/36 , G03G9/08 , C09D11/00 , C09D5/00
CPC分类号： C09D11/36 , C09D5/00 , C09D11/00 , C09D11/033 , C09D11/106 , C09D11/12 , G03G9/0804 , G03G9/0825 , G03G9/13 , G03G9/131 , G03G9/132
摘要： Toner particles contained in a liquid developer have a core-shell structure that first resin particles containing a first resin are attached to or cover surfaces of second resin particles containing a second resin. The second resin satisfies Equations (1) to (2) below. In Equations (1) to (2) below, x represents a number average molecular weight of the second resin and y represents a urethane group concentration (mass %) in the second resin. −0.00003x+2.03≦y≦−0.00003x+6.95 Equation (1) 10000≦x≦50000 Equation (2)
摘要翻译：包含在液体显影剂中的调色剂颗粒具有核 - 壳结构，其中含有第一树脂的第一树脂颗粒附着或覆盖包含第二树脂的第二树脂颗粒的表面。第二树脂满足下述式（1）〜（2）。在下面的等式（1）至（2）中，x表示第二树脂的数均分子量，y表示第二树脂中的氨基甲酸酯基浓度（质量％）。 -0.00003x + 2.03＆nlE; y＆nlE; -0.00003x + 6.95等式（1）10000＆nlE; x＆nlE; 50000等式（2）

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