公开(公告)号：US11934145B2

公开(公告)日：2024-03-19

申请号：US18052977

申请日：2022-11-07

Applicant: Minoru Masuda ,  Tohru Suganuma ,  Masashi Nagayama ,  Hiroyuki Kishida ,  Kento Takeuchi ,  Kaede Masuko ,  Tomomi Suzuki ,  Takuya Suganuma ,  Kazuki Yogosawa

Inventor： Minoru Masuda ,  Tohru Suganuma ,  Masashi Nagayama ,  Hiroyuki Kishida ,  Kento Takeuchi ,  Kaede Masuko ,  Tomomi Suzuki ,  Takuya Suganuma ,  Kazuki Yogosawa

IPC: G03G21/16 ,  G03G9/083 ,  G03G21/00

CPC classification number: G03G9/0834 ,  G03G21/0047 ,  G03G21/1676

Abstract: A developing apparatus includes an electrostatic latent image bearer, a developing sleeve, a case, and an air filter. The case accommodates a two-component developer and the developing sleeve. The air filter is attached to the case. The air filter has a thickness of 2 to 20 mm and has a density gradient with a pressure loss of 2 to 40 Pa at a wind speed of 10 cm/s. The air filter forms an airflow sucked into the case from a gap between the developing sleeve and the case and forms an airflow discharged from the case through the air filter. The two-component developer accommodated in the case contains a magnetic particle a surface of which is coated with a resin layer. The resin layer contains at least one type of chargeable particle.

公开(公告)号：US20220291603A1

公开(公告)日：2022-09-15

申请号：US17649802

申请日：2022-02-03

Applicant: Hiroyuki KISHIDA ,  Kousuke Suzuki ,  Tohru Suganuma ,  Minoru Masuda ,  Masashi Nagayama ,  Kento Takeuchi ,  Kaede Masuko

Inventor： Hiroyuki KISHIDA ,  Kousuke Suzuki ,  Tohru Suganuma ,  Minoru Masuda ,  Masashi Nagayama ,  Kento Takeuchi ,  Kaede Masuko

IPC: G03G9/113 ,  G03G15/08

Abstract: A carrier for developing an electrostatic latent image is provided. The carrier comprises a core particle having an internal void ratio of from 0.0% to 2.0% and a coating layer coating the core particle. The coating layer contains flat chargeable particles satisfying Formula 1 blow: 1.0≤R1/R2≤3.0  Formula 1 where R1 [nm] and R2 [nm] represent a major axis and a thickness, respectively, of each of the flat chargeable particles. The carrier has an apparent density of from 2.0 to 2.5 g/cm3.

公开(公告)号：US10895816B2

公开(公告)日：2021-01-19

申请号：US16569279

申请日：2019-09-12

Applicant: Minoru Masuda ,  Hiroshi Yamashita ,  Ryota Inoue ,  Yuka Mizoguchi ,  Daichi Hisakuni ,  Tomomi Harashima

Inventor： Minoru Masuda ,  Hiroshi Yamashita ,  Ryota Inoue ,  Yuka Mizoguchi ,  Daichi Hisakuni ,  Tomomi Harashima

IPC: G03G9/00 ,  G03G9/09 ,  G03G9/08 ,  G03G9/087 ,  G03G15/01

Abstract: An image forming apparatus is provided that includes: first and second electrostatic latent image bearers; first and second electrostatic latent image forming devices; first and second developing devices configured to develop first and second electrostatic latent images with a colored toner and a special-color toner to form a colored toner image and a special-color toner image, respectively; a primary transfer device configured to transfer the colored toner image and the special-color toner image onto an intermediate image bearer in an overlapping manner to form a composite toner image; a secondary transfer device configured to transfer the composite toner image onto a recording medium; and a fixing device configured to fix the composite toner image thereon. The special-color toner comprises plate-like and/or film-like pigments. An absolute difference in volume resistivity between the special-color toner and the colored toner is 0.30 log Ω cm or less.

公开(公告)号：US09891548B2

公开(公告)日：2018-02-13

申请号：US14729180

申请日：2015-06-03

Applicant: Takamasa Hase ,  Yukiko Iwasaki ,  Minoru Masuda ,  Tsuneyasu Nagatomo ,  Kenji Yoneda

Inventor： Takamasa Hase ,  Yukiko Iwasaki ,  Minoru Masuda ,  Tsuneyasu Nagatomo ,  Kenji Yoneda

IPC: G03G13/20 ,  G03G13/08 ,  G03G9/087 ,  G03G15/20 ,  G03G15/00 ,  G03G15/08 ,  G03G15/16

CPC classification number: G03G13/20 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G13/08 ,  G03G15/08 ,  G03G15/16 ,  G03G15/2057 ,  G03G15/6591 ,  G03G2215/0129

Abstract: An image forming method is provided. The method includes the steps of forming an electrostatic latent image on a photoconductor; developing the electrostatic latent image into a toner image with a toner; transferring the toner image onto a recording medium having a smoothness of 20 s or less; and fixing the toner image on the recording medium. The toner exhibits an adhesion force of 100 gf or more, where the adhesion force is the maximum value of a pull force between a layer of the toner and standard paper determined by a tacking test with a probe temperature of 140° C.

公开(公告)号：US09785075B2

公开(公告)日：2017-10-10

申请号：US14433770

申请日：2013-10-11

Applicant: Shinya Nakayama ,  Atsushi Yamamoto ,  Minoru Masuda ,  Susumu Chiba ,  Toyoshi Sawada ,  Hiroshi Yamashita

Inventor： Shinya Nakayama ,  Atsushi Yamamoto ,  Minoru Masuda ,  Susumu Chiba ,  Toyoshi Sawada ,  Hiroshi Yamashita

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08764 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

Abstract: Provided is a toner containing a binder resin. The binder resin contains a crystalline resin. The toner has a maximum endothermic peak temperature (P1) of from 50° C. to 80° C. and a total endothermic amount (Q) of from 35 J/g to 90 J/g at a first temperature elevation of differential scanning calorimetry. A ratio (Qp/Q) of a total endothermic amount (Qp) of the toner in a temperature range of from 20° C. to the maximum endothermic peak temperature (P1) to the total endothermic amount (Q) of the toner is from 0.65 to 0.83.

公开(公告)号：US09141010B2

公开(公告)日：2015-09-22

申请号：US13916892

申请日：2013-06-13

Applicant: Kiyotada Katoh ,  Yoshihiro Norikane ,  Yasutada Shitara ,  Shinji Aoki ,  Minoru Masuda ,  Satoshi Takahashi

Inventor： Kiyotada Katoh ,  Yoshihiro Norikane ,  Yasutada Shitara ,  Shinji Aoki ,  Minoru Masuda ,  Satoshi Takahashi

IPC: C04B35/468 ,  C08K3/10 ,  G03G9/08 ,  B01J2/04 ,  B01J2/18

CPC classification number: G03G9/0802 ,  B01J2/04 ,  B01J2/18

Abstract: A particulate material production apparatus is disclosed. The particulate material production apparatus includes a droplet ejector to eject droplets of a particulate material composition liquid or a melted particulate material composition in a droplet ejection direction from nozzles; a solidifying device to solidify the droplets; a first airflow forming device to form a first airflow to feed the ejected droplets to the solidifying device with the first airflow; and a second airflow forming device to form a second airflow to apply the second airflow the droplets before the droplets are fed by the first airflow. The second airflow forming device forms the second airflow by supplying a pressed gas from a slit, and the traveling direction of the first airflow is substantially perpendicular to the droplet ejection direction.

Abstract translation: 公开了一种颗粒材料生产设备。 颗粒材料生产设备包括：滴液喷射器，其从喷嘴喷射液滴喷射方向的微粒材料组合物液体或熔融颗粒材料组合物的液滴; 固化液滴的固化装置; 第一气流形成装置，用于形成第一气流，以将喷射的液滴以第一气流供给到固化装置; 以及第二气流形成装置，以形成第二气流，以在所述液滴被所述第一气流供给之前施加所述第二气流。 第二气流形成装置通过从狭缝提供压缩气体而形成第二气流，并且第一气流的行进方向基本上垂直于液滴喷射方向。

公开(公告)号：US09029061B2

公开(公告)日：2015-05-12

申请号：US12978920

申请日：2010-12-27

Applicant: Koichi Sakata ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

Inventor： Koichi Sakata ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Yutaka Takahashi ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

IPC: G03G9/00 ,  G03G9/113 ,  G03G9/10 ,  G03G13/06 ,  G03G13/08

CPC classification number: G03G9/1139 ,  G03G9/10 ,  G03G9/1136 ,  G03G13/06 ,  G03G13/08

Abstract: A carrier for use in a two component developer for developing an electrostatic latent image is provided. The carrier includes a particulate core material; and a cover layer located on a surface of the core material and including a silicone resin and barium sulfate. The cover layer includes Ba and Si at an atomic ratio of from 0.01 to 0.08 as determined by X-ray photoelectron spectroscopy.

Abstract translation: 提供了用于显影静电潜像的双组分显影剂中的载体。 载体包括颗粒芯材料; 以及覆盖层，其位于所述芯材的表面上，并且包括硅树脂和硫酸钡。 覆盖层包括通过X射线光电子能谱测定的原子比为0.01至0.08的Ba和Si。

公开(公告)号：US20140097267A1

公开(公告)日：2014-04-10

申请号：US14029954

申请日：2013-09-18

Applicant: Yasutada Shitara ,  Minoru Masuda ,  Shinji Aoki ,  Yoshihiro Norikane ,  Andrew Mwaniki Mulwa ,  Masaru Ohgaki ,  Kiyotada Katoh ,  Satoshi Takahashi

Inventor： Yasutada Shitara ,  Minoru Masuda ,  Shinji Aoki ,  Yoshihiro Norikane ,  Andrew Mwaniki Mulwa ,  Masaru Ohgaki ,  Kiyotada Katoh ,  Satoshi Takahashi

IPC: B05B15/02

CPC classification number: B05B15/0258 ,  B05B15/55 ,  B05B15/555 ,  B41J2/1652 ,  B41J2/16552 ,  G03G9/122 ,  G03G9/132

Abstract: A cleaning method for cleaning a droplet ejector, which includes nozzles to eject a particulate material composition liquid, and a nozzle plate bearing the nozzles is provided. The cleaning method includes forming a substantially closed cleaning space outside the nozzles and the nozzle plate; supplying a cleaning liquid to the cleaning space so that the nozzles and the nozzle plate are contacted with the cleaning liquid; and vibrating the cleaning liquid when the nozzles and the nozzle plate are contacted with the cleaning liquid to clean the nozzles and the nozzle plate.

Abstract translation: 提供一种用于清洁包括喷射颗粒材料组合物液体的喷嘴的液滴喷射器和支撑喷嘴的喷嘴板的清洁方法。 清洁方法包括在喷嘴和喷嘴板之外形成基本封闭的清洁空间; 向清洁空间供应清洁液体，使得喷嘴和喷嘴板与清洗液接触; 并且当所述喷嘴和所述喷嘴板与所述清洁液体接触以清洁所述喷嘴和所述喷嘴板时，使所述清洗液体振动。

公开(公告)号：US20140051019A1

公开(公告)日：2014-02-20

申请号：US13958745

申请日：2013-08-05

Applicant: Satoyuki Sekiguchi ,  Hiroshi Yamashita ,  Minoru Masuda ,  Susumu Chiba ,  Tatsuya Morita ,  Atsushi Yamamoto ,  Shinya Nakayama ,  Masahide Yamada ,  Kohsuke Nagata ,  Keiji Makabe ,  Toyoshi Sawada

Inventor： Satoyuki Sekiguchi ,  Hiroshi Yamashita ,  Minoru Masuda ,  Susumu Chiba ,  Tatsuya Morita ,  Atsushi Yamamoto ,  Shinya Nakayama ,  Masahide Yamada ,  Kohsuke Nagata ,  Keiji Makabe ,  Toyoshi Sawada

IPC: G03G9/00 ,  G03G15/08

CPC classification number: G03G9/08764 ,  G03G9/0804 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

Abstract: Toner contains a binder resin containing a crystalline resin having a urethane and/or urea bonding; and a colorant, wherein in a diffraction spectrum of the toner as measured by an X-ray diffraction instrument, a ratio {C/(C+A)} of an integral intensity C of the spectrum derived from the crystalline structure to an integral intensity A of the spectrum derived from the non-crystalline structure is 0.12 or greater, wherein the toner satisfies the following relation 1: T1−T2≦30° C. (Relation 1), where T1 represents the maximum endothermic peak in the first temperature rising from 0° C. to 100° C. at the temperature rising rate of 10° C./min and T2 represents the maximum exothermic peak in the first temperature falling from 100° C. to 0° C. at the temperature falling rate of 10° C./min as T1 and T2 are measured by diffraction scanning calorimetry (DSC).

Abstract translation: 调色剂含有含有具有氨基甲酸酯和/或脲键合的结晶性树脂的粘合剂树脂; 和着色剂，其中在通过X射线衍射仪测量的调色剂的衍射光谱中，从晶体结构衍生的光谱的积分强度C与积分强度之比{C /（C + A）} 衍生自非晶体结构的光谱的A为0.12或更大，其中调色剂满足以下关系1：T1-T2 @ 30℃（关系1），其中T1表示第一升温中的最大吸热峰 0℃至100℃，升温速率为10℃/分钟，T2表示在100℃至0℃的第一温度下的最大放热峰，温度下降速率为 10℃/ min，通过衍射扫描量热法（DSC）测量T1和T2。

公开(公告)号：US08481239B2

公开(公告)日：2013-07-09

申请号：US12896276

申请日：2010-10-01

Applicant: Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

Inventor： Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Minoru Masuda ,  Yutaka Takahashi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Saori Yamada ,  Toyoaki Tano

IPC: G03G9/00

CPC classification number: G03G15/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1133 ,  G03G9/1136 ,  G03G9/1137 ,  G03G2215/0602

Abstract: A carrier, including a magnetic particulate core material and a resin layer on the core material, wherein the resin layer includes a resin obtained by heat treatment of a copolymer including a site derived from a monomer component having the following formula (1) and a site derived from a monomer component having the following formula (2), and includes a cross-linked material obtained by hydrolysis of the copolymer to produce a silanol group and condensation using an organotitanium compound: wherein R1 represents a hydrogen atom or a methyl group; m represents an alkylene group having 1 to 8 carbon atoms; R2 represents an alkyl group having 1 to 4 carbon atoms; R3 represents an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; X represents 10 to 90 mol %; and Y represents 10 to 90 mol %.

Abstract translation: 一种载体，其包括磁性颗粒芯材料和芯材上的树脂层，其中树脂层包括通过热处理包含具有下式（1）的单体组分的位点的共聚物和通过 衍生自具有下式（2）的单体组分，并且包括通过使共聚物水解制备硅烷醇基团并使用有机钛化合物缩合获得的交联材料：其中R1表示氢原子或甲基; m表示碳原子数1〜8的亚烷基。 R2表示碳原子数1〜4的烷基， R3表示碳原子数1〜8的烷基或碳原子数1〜4的烷氧基。 X表示10〜90摩尔％。 Y表示10〜90摩尔％。