公开(公告)号：US20200033745A1

公开(公告)日：2020-01-30

申请号：US16515103

申请日：2019-07-18

Applicant: Toyoshi SAWADA ,  Kazumi SUZUKI ,  Yu NAITO ,  Akihiro KANEKO

Inventor： Toyoshi SAWADA ,  Kazumi SUZUKI ,  Yu NAITO ,  Akihiro KANEKO

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

Abstract: A toner comprising a binder resin and a near-infrared light absorbing material is provided. The toner in the form of a pellet has: a chroma C* of 20 or less in the L*C*h color space; a hue angle h of from 50 to 90 degrees in the L*C*h color space; and a spectral reflectance of 5% or less at a wavelength of from 800 to 900 nm.

公开(公告)号：US20200333720A1

公开(公告)日：2020-10-22

申请号：US16841731

申请日：2020-04-07

Applicant: Toyoshi SAWADA ,  Kazumi SUZUKI ,  Katsunori KUROSE ,  Akihiro KANEKO

Inventor： Toyoshi SAWADA ,  Kazumi SUZUKI ,  Katsunori KUROSE ,  Akihiro KANEKO

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

Abstract: A toner is provided. The toner comprises a maleic-acid-modified polyolefin having a polypropylene block in a main chain and having a weight average molecular weight of 60,000 or more.

公开(公告)号：US20220066344A1

公开(公告)日：2022-03-03

申请号：US17459134

申请日：2021-08-27

Applicant: Toyoshi SAWADA ,  Kazumi Suzuki ,  Katsunori Kurose ,  Akihiro Kaneko ,  Motoshi Iizuka

Inventor： Toyoshi SAWADA ,  Kazumi Suzuki ,  Katsunori Kurose ,  Akihiro Kaneko ,  Motoshi Iizuka

IPC: G03G9/097 ,  G03G15/20 ,  G03G9/087

Abstract: A toner includes polyolefin and has an exothermic peak in a range from 40° C. to 70° C. in a cooling process of the polyolefin by the DSC after a first heating process of the polyolefin by DSC. The polyolefin does not have an exothermic peak in the cooling process of the polyolefin by the DSC after the first heating process of the polyolefin by the DSC, and has an exothermic peak in a range from 0° C. to 30° C. in a second heating process of the polyolefin by the DSC.

公开(公告)号：US20210018855A1

公开(公告)日：2021-01-21

申请号：US16604058

申请日：2018-04-06

Applicant: Toyoshi SAWADA ,  Kazumi SUZUKI ,  Natsuko MATSUSHITA ,  Yu NAITO

Inventor： Toyoshi SAWADA ,  Kazumi SUZUKI ,  Natsuko MATSUSHITA ,  Yu NAITO

IPC: G03G9/09 ,  G03G15/16 ,  G03G9/087

Abstract: Provided is a toner including a binder resin and a colorant, wherein the colorant includes Solvent Red 49, and an acid value of the toner is 9.0 mgKOH/g or greater but 30.0 mgKOH/g or less.

公开(公告)号：US20190196349A1

公开(公告)日：2019-06-27

申请号：US16210003

申请日：2018-12-05

Applicant: Toyoshi SAWADA ,  Kazumi SUZUKI ,  Yu NAITO

Inventor： Toyoshi SAWADA ,  Kazumi SUZUKI ,  Yu NAITO

IPC: G03G9/09 ,  C07F5/00 ,  G03G15/08

CPC classification number: G03G9/0924 ,  C07F5/003 ,  G03G9/0926 ,  G03G9/09733 ,  G03G9/09758 ,  G03G9/09775 ,  G03G9/09783 ,  G03G15/08

Abstract: A toner includes a europium complex represented by the following Chemical formula where A represents 2-naphthyl group, 2-naphthyl group having a substitution group selected from the group consisting of an alkyl group, an alkoxy group, and a halogen, R represents a fluoroalkyl group having one to three carbon atoms or a methyl group, and R1, R2, R3, and R4 each, independently represent hydrogen atoms, alkyl groups, or aryl groups, wherein the toner has a hydroxyl value of from 20 to 40 mgKOH/g.

公开(公告)号：US20230288841A1

公开(公告)日：2023-09-14

申请号：US18116855

申请日：2023-03-03

Applicant: Yuki KUMAKI ,  Kenji YABE ,  Toyoshi SAWADA ,  Kazumi SUZUKI

Inventor： Yuki KUMAKI ,  Kenji YABE ,  Toyoshi SAWADA ,  Kazumi SUZUKI

IPC: G03G15/08 ,  G03G9/09 ,  G03G15/20 ,  G03G9/087 ,  G03G15/01

CPC classification number: G03G15/0889 ,  G03G9/08704 ,  G03G9/09 ,  G03G15/0189 ,  G03G15/206 ,  G03G15/2064 ,  G03G2215/0607

Abstract: An image forming apparatus includes an electrostatic latent image bearer, an electrostatic latent image former, a developing device, a transfer device, and a fixing device. The electrostatic latent image former forms an electrostatic latent image on the electrostatic latent image bearer. The developing device develops the electrostatic latent image with a developer to form a toner image. The transfer device transfers the toner image on a recording medium. The fixing device fixes the toner image on the recording medium. The developer contains an adhesive medium and foamable particles.

公开(公告)号：US20140080051A1

公开(公告)日：2014-03-20

申请号：US14028665

申请日：2013-09-17

Applicant: Toyoshi SAWADA ,  Masahide YAMADA ,  Atsushi YAMAMOTO ,  Tatsuya MORITA ,  Satoyuki SEKIGUCHI ,  Keiji MAKABE ,  Kousuke NAGATA

Inventor： Toyoshi SAWADA ,  Masahide YAMADA ,  Atsushi YAMAMOTO ,  Tatsuya MORITA ,  Satoyuki SEKIGUCHI ,  Keiji MAKABE ,  Kousuke NAGATA

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/08764 ,  G03G9/0804 ,  G03G9/09314 ,  G03G9/09328 ,  G03G9/09357 ,  G03G9/09371 ,  G03G9/09392

Abstract: To provide a toner (X), which contains toner particles, each toner particle contains: a core phase (Q) containing a crystalline resin (A); and a shell phase (S) provided on a surface of the core phase (Q), where the shell phase (S) contains a crystalline polyurethane resin (B), wherein maximum peak temperature (Ta) of heat of melting of the crystalline resin (A) is 40° C. to 70° C., and maximum peak temperature (Tu) of heat of melting of the crystalline polyurethane resin (B) is 50° C. to 90° C.

Abstract translation: 为了提供含有调色剂颗粒的调色剂（X），每个调色剂颗粒包含：含有结晶性树脂（A）的芯相（Q）; 以及壳相（S），其设置在所述芯相（Q）的表面上，其中所述壳相（S）含有结晶性聚氨酯树脂（B），其中，所述结晶性树脂的熔融热的最大峰值温度（Ta） （A）为40〜70℃，结晶性聚氨酯树脂（B）的熔融热的最高峰值温度（Tu）为50〜90℃。

公开(公告)号：US20140023966A1

公开(公告)日：2014-01-23

申请号：US13932368

申请日：2013-07-01

Applicant: Toyoshi SAWADA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Yumiko Yagi

Inventor： Toyoshi SAWADA ,  Shigenori Yaguchi ,  Hiroshi Tohmatsu ,  Hitoshi Iwatsuki ,  Toyoaki Tano ,  Hiroyuki Kishida ,  Yumiko Yagi

IPC: G03G9/113

CPC classification number: G03G9/1136 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1139

Abstract: A carrier for developing electrostatic latent images includes a core material; and a covering layer formed of a resin comprising an electroconductive particulate material, overlying the core material, wherein the covering layer includes the electroconductive particulate material in an amount of from 58 to 73% by weight and has a resistivity of from 6.6 to 8.6 Ωcm, and wherein the carrier has a high-brightness contrast part at an areal ratio less than 1% and 40 to 90% based on total area thereof at an acceleration voltage of 0.8 KV and 2.0 KV, respectively in an FE-SEM reflection electron image of the surface thereof.

Abstract translation: 用于显影静电潜像的载体包括芯材料; 以及由包括导电性颗粒材料的树脂形成的覆盖层，覆盖在所述芯材料上，其中所述覆盖层包含58-73重量％的导电性颗粒材料，并且电阻率为6.6至8.6Ωmacm， 并且其中所述载体具有相对于其在0.8KV和2.0KV的加速电压下的总面积小于1％和40至90％的面积率的高亮度对比度部分，FE-SEM反射电子图像 其表面。

公开(公告)号：US20160223926A1

公开(公告)日：2016-08-04

申请号：US15021638

申请日：2014-08-13

Applicant: Azumi MIYAAKE ,  Daisuke ASAHINA ,  Toyoshi SAWADA ,  Hiroshi YAMASHITA ,  Tsuyoshi SUGIMOTO ,  Shinya NAKAYAMA ,  Susumu CHIBA ,  Satoyuki SEKIGUCHI

Inventor： Azumi MIYAAKE ,  Daisuke ASAHINA ,  Toyoshi SAWADA ,  Hiroshi YAMASHITA ,  Tsuyoshi SUGIMOTO ,  Shinya NAKAYAMA ,  Susumu CHIBA ,  Satoyuki SEKIGUCHI

IPC: G03G9/08 ,  G03G15/08 ,  G03G9/087

CPC classification number: G03G9/0821 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/08

Abstract: Provided is a resin for a toner, which is a copolymer including a crystalline segment, and having a maximum elastic stress value at 100° C. (ES-100) of 1,000 Pa or less, and a maximum elastic stress value at 70° C. (ES70) of 1,000 Pa or greater when the temperature is lowered from 100° C. to 70° C., where the maximum elastic stress values are measured according to a large amplitude oscillatory shear procedure.

Abstract translation: 本发明提供一种调色剂用树脂，其为含有结晶性部分的共聚物，在100℃（ES-100）为1000Pa以下，70℃时的最大弹性应力值为最大弹性应力值 （ES70）当温度从100℃降低到70℃时为1,000Pa以上，其中最大弹性应力值根据大幅度振荡剪切程序测量。

公开(公告)号：US20160091812A1

公开(公告)日：2016-03-31

申请号：US14891032

申请日：2013-11-27

Applicant: Keiji MAKABE ,  Tsuyoshi SUGIMOTO ,  Akinori SAITO ,  Suzuka AMEMORI ,  Toyoshi SAWADA ,  Hiroshi YAMASHITA ,  Shinya NAKAYAMA ,  Atsushi YAMAMOTO ,  Daisuke ASAHINA ,  Satoyuki SEKIGUCHI

Inventor： Keiji MAKABE ,  Tsuyoshi SUGIMOTO ,  Akinori SAITO ,  Suzuka AMEMORI ,  Toyoshi SAWADA ,  Hiroshi YAMASHITA ,  Shinya NAKAYAMA ,  Atsushi YAMAMOTO ,  Daisuke ASAHINA ,  Saloyuki SEKIGUCHI

IPC: G03G9/00

CPC classification number: G03G9/08788 ,  G03G9/08755 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0126

Abstract: A toner includes a binder resin including a copolymer resin containing structural units derived from crystalline and non-crystalline resins, respectively. Spin-spin relaxation time (t50) of the toner at 50° C. measured by pulse NMR is ≦0.05 msec., spin-spin relaxation time (t130) at 130° C. when warmed from 50° C. to 130° C. is >15 msec., and spin-spin relaxation time (t′70) at 70° C. when cooled from 130° C. to 70° C. is ≦1.00 msec. A binarized image obtained by binarizing a phase image of the toner observed by a tapping mode AFM based on intermediate value between maximum and minimum phase difference values in the phase image includes first phase difference images constituted by large phase-difference portions and a second phase difference image constituted by a small phase-difference portion. The first phase difference images are dispersed in the second phase difference image. The dispersion diameter of the first phase difference images is 150 nm or less.

Abstract translation: 调色剂包括分别包含衍生自结晶和非结晶树脂的结构单元的共聚物树脂的粘合剂树脂。 通过脉冲NMR测量的调色剂在50℃下的自旋旋转弛豫时间（t50）在从50℃升温至130℃时为130℃时为自旋 - 自旋弛豫时间（t130） 当从130℃冷却至70℃时，C为> 15毫秒，70℃时的自旋 - 自旋弛豫时间（t'70）为1.00毫秒。 通过基于相位图像中的最大相位差值和最小相位差值之间的中间值二次化通过抽头模式AFM观察到的调色剂的相位图像而获得的二值化图像包括由大的相位差部分和第二相位差构成的第一相位差图像 图像由小的相位差部分构成。 第一相位差图像分散在第二相位差图像中。 第一相位差图像的色散直径为150nm以下。