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1. 发明公开

US20240302763A1 IMAGE FORMING METHOD, CARRIER, DEVELOPER, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20240302763A1
公开(公告)日：2024-09-12
申请号：US18586597
申请日：2024-02-26
申请人： Minoru MASUDA , Masashi NAGAYAMA , Tohru SUGANUMA , Kento TAKEUCHI , Tomomi SUZUKI
发明人： Minoru MASUDA , Masashi NAGAYAMA , Tohru SUGANUMA , Kento TAKEUCHI , Tomomi SUZUKI
IPC分类号： G03G9/113 , G03G15/095
CPC分类号： G03G9/1139 , G03G15/095 , G03G2215/0607
摘要： An image forming method is provided that includes: developing an electrostatic latent image formed on an image bearer, with use of a developer containing a carrier and toner, the carrier having a core material particle and a covering layer, the covering layer covering the core material particle and containing an antimony-containing particle; and supplying the carrier to the developer.

2. 发明公开

US20240295834A1 CARRIER, DEVELOPING AGENT, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE 审中-公开
公开(公告)号：US20240295834A1
公开(公告)日：2024-09-05
申请号：US18592573
申请日：2024-03-01
申请人： Masashi NAGAYAMA , Kento TAKEUCHI , Tomomi SUZUKI , Tohru SUGANUMA
发明人： Masashi NAGAYAMA , Kento TAKEUCHI , Tomomi SUZUKI , Tohru SUGANUMA
IPC分类号： G03G9/113 , G03G9/08 , G03G21/18
CPC分类号： G03G9/1139 , G03G9/0823 , G03G21/1814
摘要： A carrier contains a core material with a surface roughness Rz of from 2.0 to 3.0 μm; and a coating layer to cover the core material, the coating layer comprising an antimony-containing particle.

3. 发明公开

US20230305439A1 CARRIER FOR ELECTROPHOTOGRAPHIC IMAGE FORMATION, DEVELOPER FOR ELECTROPHOTOGRAPHIC IMAGE FORMATION, ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE 审中-公开
公开(公告)号：US20230305439A1
公开(公告)日：2023-09-28
申请号：US18115771
申请日：2023-03-01
申请人： Masashi NAGAYAMA , Tomomi SUZUKI , Kento TAKEUCHI , Tohru SUGANUMA
发明人： Masashi NAGAYAMA , Tomomi SUZUKI , Kento TAKEUCHI , Tohru SUGANUMA
IPC分类号： G03G15/08 , G03G9/107 , G03G9/113
CPC分类号： G03G15/0889 , G03G15/0808 , G03G9/1085 , G03G9/1139 , G03G2215/0607
摘要： A carrier for electrophotographic image formation includes carrier particles. Each of the carrier particles includes a core particle and a coating layer covering the core particle. The coating layer includes diantimony pentoxide-containing particles.

4. 发明申请

US20180267421A1 CARRIER, DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE 审中-公开
公开(公告)号：US20180267421A1
公开(公告)日：2018-09-20
申请号：US15911443
申请日：2018-03-05
申请人： Mariko TAKII , Koichi SAKATA , Tohru SUGANUMA , Masahiro SEKI , Masashi NAGAYAMA , Toyoaki TANO , Kohsuke MIYAZAKI
发明人： Mariko TAKII , Koichi SAKATA , Tohru SUGANUMA , Masahiro SEKI , Masashi NAGAYAMA , Toyoaki TANO , Kohsuke MIYAZAKI
IPC分类号： G03G9/00 , G03G9/107 , G03G9/113
CPC分类号： G03G9/1075 , G03G9/1131 , G03G9/1133 , G03G9/1134 , G03G9/1135 , G03G9/1136 , G03G9/1139 , G03G15/08 , G03G15/0853 , G03G15/556
摘要： A carrier is provided including a core particle and a resin layer coating the surface of the core particle. The resin layer includes fine metal particles, and a detected metal element amount A obtained by X-ray photoelectron spectrometry of the surface of the carrier is in a range of 4.0 atomic %≤A≤20.0 atomic % and an average major-axis length B of the fine metal particle exposing from the resin layer is in a range of 100 nm≤B≤800 nm.

5. 发明申请

US20170185000A1 CARRIER, DEVELOPING AGENT, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, REPLENISHMENT TONER, AND PROCESS CARTRIDGE 有权
公开(公告)号：US20170185000A1
公开(公告)日：2017-06-29
申请号：US15392482
申请日：2016-12-28
申请人： Masashi NAGAYAMA , Mariko TAKll , Yoshihiro MURASAWA , Haruki MURATA , Kei NIWAYAMA , Tohru SUGANUMA , Koichi SAKATA , Saori YAMADA , Shinya NAKAGAWA , Kohsuke MIYAZAKI
发明人： Masashi NAGAYAMA , Mariko TAKll , Yoshihiro MURASAWA , Haruki MURATA , Kei NIWAYAMA , Tohru SUGANUMA , Koichi SAKATA , Saori YAMADA , Shinya NAKAGAWA , Kohsuke MIYAZAKI
IPC分类号： G03G9/00
CPC分类号： G03G9/1139 , G03G9/0821 , G03G9/1131 , G03G15/0121 , G03G15/0865 , G03G2215/0129 , G03G2215/0132
摘要： Carrier for image forming includes a core material particle including a magnetic material and a coating layer disposed on the surface of the core material particle, the coating layer including a resin, carbon black, an inorganic particulate A, and an inorganic particulate B. The carbon black has a concentration gradient along a thickness direction of the coating layer with a concentration from high to low toward a surface of the coating layer while the inorganic particulate A has a concentration gradient along a thickness direction of the coating layer with a concentration from low to high toward the surface of the coating layer. The volume ratio of the carbon black is 0-30 percent at a depth range of 0.0-0.1 μm from the surface of the coating layer. The inorganic particulate A is electroconductive with a powder specific resistance of 200 Ω·cm or less.

6. 发明申请

US20080227021A1 METHOD OF MATNUFACTURING TONER 有权
标题翻译：调色剂的方法
公开(公告)号：US20080227021A1
公开(公告)日：2008-09-18
申请号：US12047460
申请日：2008-03-13
申请人： Tohru SUGANUMA
发明人： Tohru SUGANUMA
IPC分类号： G03G5/00
CPC分类号： G03G9/081 , G03G9/0817 , G03G9/0819 , G03G9/08755 , G03G9/08797
摘要： A method of manufacturing toner including; melting and kneading a mixture including a binder resin and a coloring agent; cooling down the melted and kneaded mixture to provide a cooled mixture; coarsely pulverizing the cooled mixture to provide a coarsely pulverized mixture; finely pulverizing the coarsely pulverized mixture by supplying it via a pulverized material supply to a pulverizer that includes a rotation axis, a rotor attached to the rotation axis, and stators arranged around the rotor with a gap between the stators and the surface of the rotor and that performs pulverization in a circular space formed by the gap; and classifying the finely pulverized material by a classifier into at least fine powder, a toner product and coarse powder, wherein the coarse powder is returned to the pulverized material supply as part of the coarsely pulverized mixture.
摘要翻译：一种制造调色剂的方法，包括：熔融捏合包括粘合剂树脂和着色剂的混合物; 冷却熔融和捏合的混合物以提供冷却的混合物; 将冷却的混合物粗粉碎以提供粗粉碎的混合物; 将粗粉碎的混合物通过粉碎材料供给粉碎，将粉碎物料供给到包括旋转轴的粉碎机，附着在旋转轴上的转子，以及定子围绕转子布置在定子与转子表面之间的间隙，其在由间隙形成的圆形空间中进行粉碎; 并且通过分级器将细粉碎的材料分选成至少细粉末，调色剂产物和粗粉末，其中粗粉末作为粗粉碎混合物的一部分返回到粉碎材料供应。

7. 发明申请

US20180120724A1 CARRIER, DEVELOPER, IMAGE FORMING APPARATUS, DEVELOPER STORED UNIT, AND IMAGE FORMING METHOD 审中-公开
公开(公告)号：US20180120724A1
公开(公告)日：2018-05-03
申请号：US15568947
申请日：2016-04-28
申请人： Koichi SAKATA , Tohru SUGANUMA , Shohichi SUGIMOTO , Hiroshi TOHMATSU , Hiroyuki KISHIDA , Kenichi MASHIKO , Toyoaki TANO
发明人： Koichi SAKATA , Tohru SUGANUMA , Shohichi SUGIMOTO , Hiroshi TOHMATSU , Hiroyuki KISHIDA , Kenichi MASHIKO , Toyoaki TANO
IPC分类号： G03G9/113
CPC分类号： G03G9/1139 , G03G9/1136 , G03G9/1137
摘要： A carrier including a resin layer including at least one kind of particles, wherein the at least one kind of the particles are particles of barium sulfate, wherein an amount of Ba detected is 0.3 atomic % or greater in a Ba analysis through X-ray photo-electron spectroscopy (XPS) of the carrier, and wherein circle-equivalent diameters of the particles of the barium sulfate are 400 nm or greater but 900 nm or smaller.

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