公开(公告)号：US20210009799A1

公开(公告)日：2021-01-14

申请号：US16908066

申请日：2020-06-22

Applicant: Natsuki KOIKE ,  Yasushi AKIBA ,  Mitsuyo MATSUMOTO ,  Yoshitaka SEKIGUCHI

Inventor： Natsuki KOIKE ,  Yasushi AKIBA ,  Mitsuyo MATSUMOTO ,  Yoshitaka SEKIGUCHI

IPC: C08L25/06

Abstract: A resin composition is provided. The resin composition comprises an acrylonitrile butadiene styrene resin, a polystyrene resin, a polycarbonate resin, and a phosphorus compound. The amount of the polystyrene resin is equal to or greater than the amount of the acrylonitrile butadiene styrene resin. The amount of the polycarbonate resin is from 70 to 90 parts by mass with respect to 100 parts by mass of all the resins. The phosphorus compound contains a phosphazene compound, and the amount of the phosphazene compound is from 0.1 to 4.0 parts by mass with respect to 100 parts by mass of all the resins.

公开(公告)号：US20200174390A1

公开(公告)日：2020-06-04

申请号：US16492818

申请日：2018-02-15

Applicant: Naoko KITADA ,  Satoshi OGAWA ,  Yoshitaka SEKIGUCHI ,  Masayuki ISHII ,  Shohta KOBAYASHI

Inventor： Naoko KITADA ,  Satoshi OGAWA ,  Yoshitaka SEKIGUCHI ,  Masayuki ISHII ,  Shohta KOBAYASHI

IPC: G03G9/097 ,  G03G9/087 ,  G03G9/08 ,  G03G15/08 ,  G03G21/18

Abstract: Provided is a toner including a binder resin, and a charge-controlling agent, wherein a volume average particle diameter X of the toner after a stress treatment satisfies Formula (1), and an amount Y of fine toner particles having particle diameters of 3 micrometers or smaller and circularity of 0.70 or less satisfies Formula (2).

公开(公告)号：US20200019076A1

公开(公告)日：2020-01-16

申请号：US16492986

申请日：2018-02-21

Applicant: Shohta KOBAYASHI ,  Satoshi OGAWA ,  Yoshitaka SEKIGUCHI ,  Masayuki ISHII ,  Naoko KITADA

Inventor： Shohta KOBAYASHI ,  Satoshi OGAWA ,  Yoshitaka SEKIGUCHI ,  Masayuki ISHII ,  Naoko KITADA

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G21/18

Abstract: Provided is a toner including a binder resin, a release agent, and a charge-controlling agent, wherein the toner includes toner particles having particle diameters of 3 micrometers or smaller, among the toner particles having particle diameters of 3 micrometers or smaller, a proportion of the toner particles having an average circularity of 0.70 or greater but 0.85 or less in all of the toner particles is 10% by number or greater but less than 20% by number and a proportion of the toner particles having an average circularity of less than 0.70 in all of the toner particles is 10% by number or less.

公开(公告)号：US20140363209A1

公开(公告)日：2014-12-11

申请号：US14373396

申请日：2013-02-07

Applicant: Ryota Inoue ,  Yoshitaka Sekiguchi ,  Hiroaki Katoh ,  Shun Saito

Inventor： Ryota Inoue ,  Yoshitaka Sekiguchi ,  Hiroaki Katoh ,  Shun Saito

IPC: G03G9/087

CPC classification number: G03G9/08755 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G2215/0629

Abstract: A toner for developing an electrostatic image, which contains: resin particles (C), wherein the resin particles (C) each contain a resin particle (B) and resin particles (A) or a coating film (P) deposited on a surface of the resin particle (B), where the resin particle (B) contains a second resin (b) and a filler (f), wherein the resin particles (A) or the coating film (P) contains a first resin (a), wherein the second resin (b) contains a crystalline resin, and wherein the resin particle (B) contains the filler (f) in an amount of 15% by mass or greater.

Abstract translation: 一种用于显影静电图像的调色剂，其包含：树脂颗粒（C），其中树脂颗粒（C）各自含有树脂颗粒（B）和树脂颗粒（A）或沉积在表面上的涂膜 树脂颗粒（B），其中树脂颗粒（B）含有第二树脂（b）和填料（f）），其中树脂颗粒（A）或涂膜（P）含有第一树脂（a） 其中所述第二树脂（b）含有结晶性树脂，并且其中所述树脂颗粒（B）含有15质量％以上的填料（f）。

公开(公告)号：US20130260307A1

公开(公告)日：2013-10-03

申请号：US13826791

申请日：2013-03-14

Applicant: Masashi Nagayama ,  Hisashi Nakajima ,  Saori Yamada ,  Shinya Hanatani ,  Mariko Takii ,  Yoshitaka Sekiguchi

Inventor： Masashi Nagayama ,  Hisashi Nakajima ,  Saori Yamada ,  Shinya Hanatani ,  Mariko Takii ,  Yoshitaka Sekiguchi

IPC: G03G9/08 ,  G03G21/18 ,  G03G13/20

CPC classification number: G03G9/08 ,  G03G9/081 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08795 ,  G03G9/08797 ,  G03G13/20 ,  G03G21/18

Abstract: A toner including a crystalline polyester resin (A), an amorphous resin (B), and a composite resin (C) having a condensation polymerization resin unit and an addition polymerization resin unit is provided. A molecular weight distribution of the toner based on THF-soluble contents thereof has a main peak within a molecular weight range from 1,000 to 10,000 and a half bandwidth of the main peak is 15,000 or less. The molecular weight distribution is determined by gel permeation chromatography. The toner includes chloroform-insoluble contents. A ratio C/R of the toner is within a range from 0.03 to 0.55. C and R represent heights of spectrum peaks specific to the crystalline polyester resin (A) and the amorphous resin (B), respectively, determined by a Fourier transform infrared spectroscopic attenuation total reflection method after the toner is stored in a thermostatic chamber at 45° C. for 12 hours.

Abstract translation: 提供了包含结晶聚酯树脂（A），无定形树脂（B）和具有缩聚树脂单元和加成聚合树脂单元的复合树脂（C）的调色剂。 基于THF可溶物含量的调色剂的分子量分布具有在1,000至10,000的分子量范围内的主峰，并且主峰的半带宽为15,000以下。 分子量分布通过凝胶渗透色谱法测定。 该调色剂包括不溶于氯仿的内容物。 调色剂的比例C / R在0.03〜0.55的范围内。 C和R分别表示在将调色剂储存在45℃的恒温槽中之后，通过傅立叶变换红外光谱衰减全反射法测定的结晶性聚酯树脂（A）和非晶质树脂（B）特有的光谱峰的高度 C.持续12小时。

公开(公告)号：US20130244157A1

公开(公告)日：2013-09-19

申请号：US13792763

申请日：2013-03-11

Applicant: Ryota INOUE ,  Hiroaki Katoh ,  Masahiro Seki ,  Shun Saito ,  Yoshitaka Sekiguchi ,  Yoshihiro Mikuriya ,  Kazuoki Fuwa ,  Satoshi Ogawa ,  Tomohiro Fukao ,  Takayuki Nakamura

Inventor： Ryota INOUE ,  Hiroaki Katoh ,  Masahiro Seki ,  Shun Saito ,  Yoshitaka Sekiguchi ,  Yoshihiro Mikuriya ,  Kazuoki Fuwa ,  Satoshi Ogawa ,  Tomohiro Fukao ,  Takayuki Nakamura

IPC: G03G9/00 ,  G03G15/08

CPC classification number: G03G9/08755 ,  G03G9/0812 ,  G03G9/08764 ,  G03G9/08782 ,  G03G21/18

Abstract: A toner, including: a binder resin; releasing agent-encapsulating capsules; and a colorant, wherein the releasing agent-encapsulating capsules each include: a capsule formed of a resin (I) which is different from the binder resin; and a releasing agent (RA) which is encapsulated in the capsule, and the releasing agent-encapsulating capsules exist in the binder resin, and wherein 50% to 100% of the releasing agent-encapsulating capsules exist in a region from a surface of the toner to a depth of 0.10 times a volume-average particle diameter of the toner.

Abstract translation: 一种调色剂，包括：粘合剂树脂; 脱模剂包封胶囊; 和着色剂，其中所述脱模剂包封胶囊各自包括：由与所述粘合剂树脂不同的树脂（I）形成的胶囊; 和封装在胶囊中的脱模剂（RA），脱模剂包封胶囊存在于粘合剂树脂中，其中50％〜100％的脱模剂包封胶囊存在于 调色剂到调色剂的体积平均粒径的0.10倍的深度。

公开(公告)号：US07867680B2

公开(公告)日：2011-01-11

申请号：US12348494

申请日：2009-01-05

Applicant: Yoshihiro Mikuriya ,  Kazuoki Fuwa ,  Hiroaki Katoh ,  Yoshitaka Sekiguchi ,  Hideaki Yasunaga ,  Masayuki Hagi

Inventor： Yoshihiro Mikuriya ,  Kazuoki Fuwa ,  Hiroaki Katoh ,  Yoshitaka Sekiguchi ,  Hideaki Yasunaga ,  Masayuki Hagi

IPC: G03G9/087 ,  G03G5/00 ,  G03G15/08 ,  G03G21/18 ,  G03G13/20

CPC classification number: G03G9/08795 ,  G03G9/081 ,  G03G9/08724 ,  G03G9/08755 ,  G03G9/08797

Abstract: A non-magnetic toner including a binder resin including a first resin, a second resin, a third resin; a colorant; and a wax, wherein the first resin is a hybrid resin including an amorphous condensation polymerization unit and a radical polymerization unit in its molecular frame, and the second and third resins are non-hybrid resins including condensation polymerization units, wherein each of the first, second and third resins has a glass transition temperature (Tg) and a softening point (Tm) satisfying the following relationships: Tg of first resin

Abstract translation: 一种非磁性调色剂，包括包含第一树脂，第二树脂，第三树脂的粘合剂树脂; 着色剂 和蜡，其中所述第一树脂是其分子框架中包含无定形缩聚单元和自由基聚合单元的混合树脂，所述第二和第三树脂是包含缩聚单元的非混合树脂，其中所述第一， 第二和第三树脂的玻璃化转变温度（Tg）和软化点（Tm）满足以下关系：第一树脂的Tg <第二树脂的Tg <第三树脂的Tg = 70〜80℃，以及 第二树脂的Tm <第三树脂的Tm

公开(公告)号：US20090169270A1

公开(公告)日：2009-07-02

申请号：US12342656

申请日：2008-12-23

Applicant: Kazuoki FUWA ,  Yoshihiro Mikuriya ,  Hideaki Yasunaga ,  Yoshitaka Sekiguchi ,  Hiroaki Kato

Inventor： Kazuoki FUWA ,  Yoshihiro Mikuriya ,  Hideaki Yasunaga ,  Yoshitaka Sekiguchi ,  Hiroaki Kato

IPC: G03G15/08

CPC classification number: G03G15/0808 ,  G03G9/0819 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0818 ,  G03G2215/0607

Abstract: Provided is an image forming apparatus including at least a latent image bearing member, a latent electrostatic image forming unit, a developing unit which includes at least a developing roller and a supply roller, and a transfer unit, wherein both of a diameter R (mm) of the developing roller and a diameter R′ (mm) of the supply roller are 12 mm or less; the toner contains at least a binder resin, a wax, and a colorant with the wax having a melting point of 75° C. or less; an amount of the wax exposed on a surface of the toner is 10 mg/g to 30 mg/g; and when a diameter (mm) of the developing roller is represented by R the toner has a torque T (mNm) satisfying the inequation, 20/R

Abstract translation: 提供了一种图像形成装置，其至少包括潜像承载部件，静电潜像形成单元，至少包括显影辊和供给辊的显影单元和转印单元，其中直径R（mm ）和供给辊的直径R'（mm）为12mm以下; 调色剂至少含有粘合剂树脂，蜡和着色剂，蜡的熔点为75℃以下; 在调色剂表面上露出的蜡的量为10mg / g至30mg / g; 并且当显影辊的直径（mm）由R表示时，调色剂具有满足不等式20 / R

公开(公告)号：US20080199234A1

公开(公告)日：2008-08-21

申请号：US12017617

申请日：2008-01-22

Applicant: Masayuki HAGI ,  Yoshihiro Mikuriya ,  Yoshitaka Sekiguchi ,  Hideaki Yasunaga ,  Kiroaki Kato ,  Kazuoki Fuwa ,  Masahide Inoue ,  Yoshiyuki Shimizu

Inventor： Masayuki HAGI ,  Yoshihiro Mikuriya ,  Yoshitaka Sekiguchi ,  Hideaki Yasunaga ,  Kiroaki Kato ,  Kazuoki Fuwa ,  Masahide Inoue ,  Yoshiyuki Shimizu

IPC: G03G21/10

CPC classification number: G03G21/12 ,  G03G21/105 ,  G03G2221/1624

Abstract: To provide a toner recovery apparatus including: a toner transporting duct; and an endless toner transporting belt; wherein the toner transporting belt is rotated in a loop form in such a way that it descends in a region where the outer circumferential surface faces a ceiling surface of the toner transporting duct and that it rises in a region where the outer circumferential surface of the toner transporting belt faces a bottom surface of the toner transporting duct, the toner recovery apparatus transports the residual toner to the outlet by holding the toner by the convex parts, spaces formed between convex parts and the bottom surface of the toner transporting duct, and the toner comprises a binding resin, releasing agent, coloring material and external additive, and torque T (mNm) measured by torque measurement method using a conical rotor in a space ratio of 50% to 60% is 1.0 to 2.5.

Abstract translation: 提供一种调色剂回收装置，包括：调色剂输送管道; 和无端调色剂输送带; 其中所述调色剂输送带以环形方式旋转，使得其在所述外圆周表面面向所述调色剂输送管道的顶表面的区域中下降，并且其在所述调色剂的外周表面的区域中升高 调色剂回收装置通过由凸部保持调色剂，在凸部与调色剂输送管的底面之间形成的空间和调色剂输送管的底面，将调色剂回收装置输送到出口。 包括粘合树脂，脱模剂，着色材料和外部添加剂，并且使用以50％至60％的间隔比的锥形转子通过扭矩测量方法测量的扭矩T（mNm）为1.0至2.5。

公开(公告)号：US06506530B1

公开(公告)日：2003-01-14

申请号：US09584178

申请日：2000-05-31

Applicant: Kenichi Kido ,  Masayuki Hagi ,  Megumi Aoki ,  Yoshihiro Mikuriya ,  Takeshi Arai ,  Tetsuo Sano ,  Yoshitaka Sekiguchi ,  Junichi Tamaoki

Inventor： Kenichi Kido ,  Masayuki Hagi ,  Megumi Aoki ,  Yoshihiro Mikuriya ,  Takeshi Arai ,  Tetsuo Sano ,  Yoshitaka Sekiguchi ,  Junichi Tamaoki

IPC: G03G9087

CPC classification number: G03G9/08793 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

Abstract: The present invention provide a toner comprising: a coloring agent; a binder resin comprising a first binder resin and a second binder resin, the first binder resin being composed of a linear polyester resin having a number-average molecular weight (Mn) of from 2,800 to 7,000, a weight-average molecular weight (Mw) of from 8,900 to 21,000, and a Mw/Mn ratio of 2 to 4, the second binder resin being composed of a non-linear polyester resin having a number-average molecular weight (Mn) of from 3,500 to 8,000, a weight-average molecular weight (Mw) of from 40,000 to 120,000, and a Mw/Mn ratio of 10 to 20, and a ratio of the first binder resin to the second binder resin (the first binder resin:the second binder resin) being 60:40 to 95:5 by weight.

Abstract translation: 本发明提供一种调色剂，其包括：着色剂;包含第一粘合剂树脂和第二粘合剂树脂的粘合剂树脂，所述第一粘合剂树脂由数均分子量（Mn）为2800的直链聚酯树脂 至7,000，重均分子量（Mw）为8,900至21,000，Mw / Mn比为2至4，第二粘合剂树脂由具有数均分子量的非线性聚酯树脂（ Mn）为3,500至8,000，重均分子量（Mw）为40,000至120,000，Mw / Mn比为10至20，第一粘合剂树脂与第二粘合剂树脂的比率（第一 粘合剂树脂：第二粘合剂树脂）的重量比为60:40至95:5。