公开(公告)号：US20140255840A1

公开(公告)日：2014-09-11

申请号：US14167096

申请日：2014-01-29

申请人： Yoshitaka SEKIGUCHI ,  Hisashi Nakajima ,  Masashi Nagayama ,  Saori Yamada ,  Shinya Hanatani ,  Mariko Takii

发明人： Yoshitaka SEKIGUCHI ,  Hisashi Nakajima ,  Masashi Nagayama ,  Saori Yamada ,  Shinya Hanatani ,  Mariko Takii

IPC分类号： G03G9/00

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/08 ,  G03G21/18

摘要： A toner is provided. The toner includes a crystalline polyester resin (A); and a non-crystalline resin (B). The toner has a viscoelastic property such that the loss tangent (tan δ) defined as a ratio (G″/G′) of loss elastic modulus (G″) to storage elastic modulus (G′) has at least an inflection point or a local maximal point at a temperature α in a temperature range of from 65° C. to 80° C. while having a local maximal point at a temperature β in a temperature range of from 75° C. to 90° C., wherein the loss tangent at the temperature α is from 1.2 to 2.0, and the loss tangent at the temperature β is from 1.0 to 2.5, wherein the temperature α is lower than the temperature β.

摘要翻译： 提供调色剂。 调色剂包括结晶聚酯树脂（A）; 和非结晶性树脂（B）。 调色剂具有粘弹性，使得以损失弹性模量（G“）与储能弹性模量（G'）的比率（G”/ G'）定义的损耗角正切（tanδ）至少具有拐点或 在65℃至80℃的温度范围内的温度为α的局部最大点，同时在温度为bgr时具有局部最大点; 在75℃至90℃的温度范围内，其中温度α下的损耗角正切值为1.2至2.0，温度下的损耗角正切值为bgr; 为1.0〜2.5，其中温度α低于温度＆bgr。

公开(公告)号：US20140348550A1

公开(公告)日：2014-11-27

申请号：US14278119

申请日：2014-05-15

申请人： Masashi NAGAYAMA ,  Hisashi NAKAJIMA ,  Yoshitaka SEKIGUCHI ,  Saori YAMADA ,  Shinya HANATANI ,  Mariko TAKII ,  Hiroshi Hosokawa ,  Shunji KATOH ,  Shinji TAMAKI ,  Hiroshi IKEGUCHI ,  Kenji KIKUCHI ,  Michiharu SUZUKI

发明人： Masashi NAGAYAMA ,  Hisashi NAKAJIMA ,  Yoshitaka SEKIGUCHI ,  Saori YAMADA ,  Shinya HANATANI ,  Mariko TAKII ,  Hiroshi Hosokawa ,  Shunji KATOH ,  Shinji TAMAKI ,  Hiroshi IKEGUCHI ,  Kenji KIKUCHI ,  Michiharu SUZUKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0839 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0872 ,  G03G15/0877

摘要： Toner housing container includes: container body housing a toner; conveying portion conveying the toner from longer direction one end of container body to its other end at which container opening portion is provided; pipe receiving port receiving a conveying pipe fixed to toner conveying device; and uplifting portion moving the toner toward toner receiving port of conveying pipe. Toner has molecular weight distribution having a peak in a range of 103 to 104, and has C/R of from 0.03 to 0.55 between peak height C attributed to crystalline polyester resin and R attributed to non-crystalline resin when measured by FT-IR after stored at 45° C. for 12 hours. Container body includes protruding portion protruding from container body interior side toward the one end. Uplifting portion includes uplifting wall surface extending from container body internal wall surface toward protruding portion. Protruding portion is present between uplifting wall surface and toner receiving port.

摘要翻译： 调色剂容器容器包括：容纳调色剂的容器主体; 输送部，其将调色剂从容器主体的长度方向的一端输送到设置有容器开口部的另一端; 管道接收端口接收固定到调色剂输送装置的输送管; 以及将调色剂移动到输送管的调色剂接收口的提升部分。 调色剂的分子量分布在103〜104的范围内具有峰值，并且归因于结晶性聚酯树脂的峰高度C和归因于非结晶性树脂的R的C / R为0.03〜0.55，通过FT-IR测定后 在45℃下储存12小时。 容器主体包括从容器主体内侧朝向一端突出的突出部。 上升部分包括从容器主体内壁表面向突出部分延伸的提升壁表面。 凸起部分存在于提升壁表面和调色剂接收口之间。

公开(公告)号：US20190011847A1

公开(公告)日：2019-01-10

申请号：US16131538

申请日：2018-09-14

申请人： Satoshi OGAWA ,  Masahiro SEKI ,  Yoshitaka SEKIGUCHI ,  Tohru MORIYA

发明人： Satoshi OGAWA ,  Masahiro SEKI ,  Yoshitaka SEKIGUCHI ,  Tohru MORIYA

IPC分类号： G03G9/097 ,  G03G9/087

摘要： Provided is a toner including a binder resin, wherein the toner includes a THF-insoluble component in an amount of from 10% by mass through 40% by mass, a molecular weight distribution of a THF-soluble component of the toner measured by gel permeation chromatography (GPC) has a main peak between 10,000 and 16,000, and a half value width of the main peak is a molecular weight of from 60,000 through 90,000, and the THF-soluble component of the toner includes a component having a molecular weight of 2,000 or less in an amount of from 15.0% by mass through 25.0% by mass, and a component having a molecular weight of 100,000 or greater in an amount of 10.0% by mass or less as measured by GPC.

公开(公告)号：US20210009799A1

公开(公告)日：2021-01-14

申请号：US16908066

申请日：2020-06-22

申请人： Natsuki KOIKE ,  Yasushi AKIBA ,  Mitsuyo MATSUMOTO ,  Yoshitaka SEKIGUCHI

发明人： Natsuki KOIKE ,  Yasushi AKIBA ,  Mitsuyo MATSUMOTO ,  Yoshitaka SEKIGUCHI

IPC分类号： C08L25/06

摘要： 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

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

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

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

摘要： 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

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

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

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

摘要： 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：US20180031992A1

公开(公告)日：2018-02-01

申请号：US15557362

申请日：2016-02-29

申请人： Masahiro SEKI ,  Yoshitaka SEKIGUCHI ,  Satoshi OGAWA ,  Naoko KITADA

发明人： Masahiro SEKI ,  Yoshitaka SEKIGUCHI ,  Satoshi OGAWA ,  Naoko KITADA

IPC分类号： G03G9/087 ,  G03G9/09

CPC分类号： G03G9/08797 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/0904 ,  G03G9/091

摘要： A toner including a binder resin, wherein the toner includes a tetrahydrofuran (THF)-insoluble component in a range of from 10% by mass through 40% by mass, wherein the toner has a main peak in a range of from 12,000 through 18,000 in a molecular weight distribution of a THF-soluble component as measured by gel permeation chromatography (GPC), wherein the main peak has a half value width in a range of from 20,000 to 50,000, and wherein the toner includes a component having a molecular weight of 2,000 or less in a range of from 10.0% by mass through 20.0% by mass and a component having a molecular weight of 100,000 or more of 8.0% by mass or less.

公开(公告)号：US20080227009A1

公开(公告)日：2008-09-18

申请号：US12027704

申请日：2008-02-07

申请人： Kazuoki FUWA ,  Masayuki HAGI ,  Yoshihiro MIKURIYA ,  Hideaki YASUNAGA ,  Hiroaki KATOH ,  Yoshitaka SEKIGUCHI ,  Satoshi OGAWA

发明人： Kazuoki FUWA ,  Masayuki HAGI ,  Yoshihiro MIKURIYA ,  Hideaki YASUNAGA ,  Hiroaki KATOH ,  Yoshitaka SEKIGUCHI ,  Satoshi OGAWA

IPC分类号： G03G13/06 ,  G03G15/08

CPC分类号： G03G15/0812

摘要： A developing device including a developing roller and a developer layer forming member for forming a layer of a one component developer on the roller. The developing device satisfies the relationships (1) 20 Q/M>13.1α−44.5, wherein X represents the ratio (% by weight) of the wax present on the surface of the developer to the total of the wax therein; α represents the angle formed by a tangent line to the member at a point B, which is the center of the contact zone of the member contacted with the roller, and another tangent line at a point A thereof 0.5 mm apart from the point B toward the tip of the member, wherein α is 0 to π/2 radian; and Q/M represents the charge quantity (μC/g) of the toner per unit weight.

摘要翻译： 一种显影装置，包括显影辊和用于在辊上形成单组分显影剂层的显影剂层形成部件。 显影装置满足关系式（1）20 Q / M> 13.1alpha-44.5，其中X表示蜡上存在的蜡的比例（重量％） 显影剂的表面与其中的蜡的总量; α表示与作为与辊接触的构件的接触区域的中心的点B处的切线与构件形成的角度，并且在距离点B向距离点B距离为0.5mm的点A处的另一切线 该成员的尖端，其中α为0至pi / 2弧度; Q / M表示每单位重量的调色剂的电荷量（μC/ g）。