公开(公告)号：US06586151B1

公开(公告)日：2003-07-01

申请号：US09679554

申请日：2000-10-06

申请人： Takeshi Naka ,  Yuichi Mizoo ,  Satoshi Matsunaga ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

发明人： Takeshi Naka ,  Yuichi Mizoo ,  Satoshi Matsunaga ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

IPC分类号： G03G908

CPC分类号： G03G9/0827 ,  G03G9/0802 ,  G03G9/081 ,  G03G9/0817 ,  G03G9/0819

摘要： A toner manufacturing method includes grinding and classification to produce a toner containing a binder resin and a colorant with a weight mean particle size of 5 microns to 12 microns and sharp particle density distribution. The toner has a specific circularity, relationship between cut ratio and weight mean size, and relationship between circularity and weight mean size as disclosed in the specification.

摘要翻译： 调色剂制造方法包括研磨和分级以产生包含粘合剂树脂和着色剂的调色剂，其重均粒径为5微米至12微米，并具有尖锐的颗粒密度分布。 调色剂具有特定的圆形度，切割比和重量平均尺寸之间的关系以及圆形度和重量平均尺寸之间的关系，如说明书中所公开的。

公开(公告)号：US06537715B2

公开(公告)日：2003-03-25

申请号：US09912915

申请日：2001-07-26

申请人： Yuichi Mizoo ,  Takeshi Naka ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

发明人： Yuichi Mizoo ,  Takeshi Naka ,  Masami Azuma ,  Takashige Kasuya ,  Tadashi Dojo ,  Tsuneo Nakanishi ,  Nene Shibayama ,  Katsuhisa Yamazaki ,  Yusuke Hasegawa

IPC分类号： G03G900

CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G9/08784

摘要： A toner has toner particles containing at least a binder resin, a colorant and a sulfur-containing compound selected from the group consisting of a sulfur-containing polymer and a sulfur-containing copolymer. The toner has a weight-average particle diameter of from 5 &mgr;m to 12 &mgr;m, and the toner has, in its particles of 3 &mgr;m or larger in diameter, at least 90% by number of particles with a circularity of 0.900 or higher, and has a specific relationship between the cut rate Z and the toner weight-average particle diameter X and a specific relationship between the number-based cumulative value Y of particles with a circularity of 0.950 or higher and the toner weight-average particle diameter X. Also disclosed are an image-forming method and a process cartridge which make use of the toner.

公开(公告)号：US07700254B2

公开(公告)日：2010-04-20

申请号：US12056917

申请日：2008-03-27

申请人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Hirata Junko ,  Masami Fujimoto ,  Takashige Kasuya

发明人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Hirata Junko ,  Masami Fujimoto ,  Takashige Kasuya

IPC分类号： G03G9/087

CPC分类号： G03G9/08795 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08797

摘要： The present invention aims to provide a toner having excellent developability and excellent low-temperature fixability without causing adhesion of ejected sheets even in a high-speed oilless fixing system and capable of preventing a frameless printing from causing a twisted offseting phenomenon. Specifically, provided is a toner having toner particles including at least a binder resin and a colorant, in which, when the toner is dissolved in a tetrahydrofuran (THF) solvent at 25° C. for 24 hours, the ratio of a THF-soluble matter having an intrinsic viscosity of 5.0×10−2 dl/g or less with respect to the total amount of the THF-soluble matter in a GPC-RALLS-viscometer analysis is 15.0 mass % to 60.0 mass %, and the ratio of a THF-soluble matter having an intrinsic viscosity of 1.5×10−1 dl/g or more with respect to the total amount of the THF-soluble matter in a GPC-RALLS-viscometer analysis is 20.0 mass % to 40.0 mass %.

摘要翻译： 本发明的目的在于提供一种即使在高速无油定影系统中也不会引起喷射片粘附并且能够防止无框印刷引起扭转偏移现象的显影性和优异的低温定影性的调色剂。 具体地说，提供了具有至少包含粘合剂树脂和着色剂的调色剂颗粒的调色剂，其中当调色剂在25℃下溶解在四氢呋喃（THF）溶剂中24小时时，THF可溶的比例 在GPC-RALLS-粘度计分析中，相对于THF可溶物的总量，特性粘度为5.0×10 -2 dl / g以下的物质为15.0质量％〜60.0质量％，a 在GPC-RALLS-粘度计分析中，相对于THF可溶物质的总量，特性粘度为1.5×10 -1 dl / g以上的THF可溶物质为20.0质量％〜40.0质量％。

公开(公告)号：US06881527B2

公开(公告)日：2005-04-19

申请号：US10391563

申请日：2003-03-20

申请人： Shuhei Moribe ,  Hirohide Tanikawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa ,  Hideto Iida ,  Katsuhisa Yamazaki

发明人： Shuhei Moribe ,  Hirohide Tanikawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa ,  Hideto Iida ,  Katsuhisa Yamazaki

IPC分类号： G03G9/087

CPC分类号： G03G9/08755

摘要： In a toner having a polyester resin as a binder resin component, and a colorant, the toner contains (a) in the binder resin component, from 20.0% by weight to 65.0% by weight of a tetrahydrofuran-insoluble matter A1 in 6-hour extraction and from 35.0% by weight to 80.0% by weight of a tetrahydrofuran-soluble matter A2 in 6-hour extraction, (b) in the binder resin component, from 10.0% by weight to 30.0% by weight of a tetrahydrofuran-insoluble matter B1 in 16-hour extraction and from 70.0% by weight to 90.0% by weight of a tetrahydrofuran-soluble matter B2 in 16-hour extraction, and (c) in the binder resin component, from 0.5% by weight to 3.0% by weight of an orthodichloro-benzene-insoluble matter C1 in 6-hour extraction at 185° C. and from 97.0% by weight to 99.5% by weight of an orthodichlorobenzene-soluble matter C2 in 6-hour extraction at 185° C. The proportion of C1 to B1, C1/B1, is from 0.06 to 0.15, and the A1, B1 and C1 satisfy the following expression (1): A1>B1>C1.  Expression (1) A process cartridge makes use of this toner.

摘要翻译： 在具有作为粘合剂树脂组分的聚酯树脂和着色剂的调色剂中，调色剂在粘合剂树脂组分中含有（a）20.0重量％至65.0重量％的四氢呋喃不溶物A1在6小时内 萃取，在6小时萃取中为35.0重量％〜80.0重量％的四氢呋喃可溶性物质A2，（b）粘合剂树脂成分中的10.0重量％〜30.0重量％的四氢呋喃不溶物 B1提取16小时，在16小时提取中为70.0重量％〜90.0重量％的四氢呋喃可溶性物质B2，（c）在粘合剂树脂成分中，0.5重量％〜3.0重量％ 的异丙苯不溶物C1在185℃下提取6小时，在185℃下6小时萃取时为97.0重量％至99.5重量％的邻二氯苯可溶物C2。 C1〜B1，C1 / B1为0.06〜0.15，A1，B1，C1满足下式（1）：< e description =“In-line Formulas”end =“lead”？> A1> B1> C1。 表达式（1）<？in-line-formula description =“在线公式”end =“tail”？>处理盒使用此碳粉。

公开(公告)号：US06426169B1

公开(公告)日：2002-07-30

申请号：US09698256

申请日：2000-10-30

申请人： Tsutomu Onuma ,  Hirohide Tanikawa ,  Nobuyuki Okubo ,  Yoshihiro Ogawa ,  Tsuneo Nakanishi ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsutomu Onuma ,  Hirohide Tanikawa ,  Nobuyuki Okubo ,  Yoshihiro Ogawa ,  Tsuneo Nakanishi ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G9097

CPC分类号： G03G9/09783 ,  G03G9/0831 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0902 ,  G03G9/091

摘要： A toner having a stable chargeability in various environments, a stable fixability over a wide temperature range and a resistance to sticking on an image-bearing member, is formed of a binder resin, a colorant and an azo iron compound as a charge control agent. The azo iron compound is formed from a monoazo compound having at least one alkyl group and two hydroxyl groups capable of bonding with an iron atom. The toner has a tetrahydrofuran-soluble content providing a gel-permeation chromatogram showing at least one peak in a molecular weight region of 3×103 to 5×104 and at least one peak or shoulder in a molecular weight region of above 5×104 and at most 1×107.

摘要翻译： 在各种环境下具有稳定的带电性的调色剂，在宽的温度范围内具有稳定的定影性和对图像承载部件的粘附性的调色剂由粘合剂树脂，着色剂和偶氮铁化合物作为电荷控制剂形成。 偶氮铁化合物由具有至少一个烷基和能够与铁原子结合的两个羟基的单偶氮化合物形成。 调色剂具有可溶于四氢呋喃的含量，其提供凝胶渗透色谱图，其显示分子量区域中至少一个峰在3×10 3至5×10 4以及至少一个峰或肩峰，分子量范围在5×10 4以上至多1×10 7以下。

公开(公告)号：US06458499B1

公开(公告)日：2002-10-01

申请号：US09870661

申请日：2001-06-01

申请人： Tsutomu Onuma ,  Hirohide Tanikawa ,  Nobuyuki Okubo ,  Tsuneo Nakanishi ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsutomu Onuma ,  Hirohide Tanikawa ,  Nobuyuki Okubo ,  Tsuneo Nakanishi ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G9087

CPC分类号： G03G9/08782

摘要： A toner is principally constituted by a binder resin, a colorant and a hydrocarbon wax. The hydrocarbon wax has a hydroxyl value (Hv) of 5-150 mgKOH/g and an ester value (Ev) of 1-50 mgKOH/g satisfying Hv>Ev. Further, the toner has a tetrahydrofuran-soluble content providing a gel-permeation chromatogram showing at least one peak in a molecular weight region of 3×103 to 5×104 and at least one peak or shoulder in a molecular weight region of 1×105 to 1×107.

摘要翻译： 调色剂主要由粘合剂树脂，着色剂和烃蜡构成。 烃蜡的羟值（Hv）为5-150mgKOH / g，酯值（Ev）为1-50mgKOH / g，满足Hv> Ev。 此外，调色剂具有四氢呋喃可溶性含量，其提供凝胶渗透色谱图，其在3×10 3至5×10 4的分子量区域中显示至少一个峰，以及在1×10 5至1×10 7的分子量区域中的至少一个峰或肩峰。

公开(公告)号：US06589701B2

公开(公告)日：2003-07-08

申请号：US09911723

申请日：2001-07-25

申请人： Katsuhisa Yamazaki ,  Tsutomu Onuma ,  Nobuyuki Okubo ,  Tsuneo Nakanishi ,  Kaori Hiratsuka

发明人： Katsuhisa Yamazaki ,  Tsutomu Onuma ,  Nobuyuki Okubo ,  Tsuneo Nakanishi ,  Kaori Hiratsuka

IPC分类号： G03G9083

CPC分类号： G03G9/0827 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/09783

摘要： A dry magnetic toner is formed of magnetic toner particles comprising a binder resin and magnetic iron oxide particles. The magnetic toner is provided with excellent developing performances and transferability by controlling the presence of isolated iron-containing particles and containing a high percentage of spherical particles, the amount of which is controlled relative to the weight-average particle size of the magnetic toner and a content of particles of 3 &mgr;m or below in the magnetic toner.

摘要翻译： 干磁性调色剂由包含粘合剂树脂和磁性氧化铁颗粒的磁性调色剂颗粒形成。 通过控制分离的含铁颗粒的存在并且含有高百分比的球形颗粒的磁性调色剂具有优异的显影性能和转印性，其量相对于磁性调色剂的重均粒径和 磁性调色剂中3μm以下的颗粒含量。

公开(公告)号：US20130252167A1

公开(公告)日：2013-09-26

申请号：US13991348

申请日：2011-12-13

申请人： Shuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Toru Takahashi ,  Daisuke Tsujimoto ,  Masami Fujimoto

发明人： Shuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Toru Takahashi ,  Daisuke Tsujimoto ,  Masami Fujimoto

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08702 ,  G03G9/08788 ,  G03G9/08797

摘要： A toner comprising toner particles, each of which contains a binder resin and a colorant, wherein the binder resin includes a resin having an endothermic peak at a temperature of 55° C. to 120° C. in a DSC curve; the toner has a softening point Tm of 90° C. to 140° C.; in the viscoelastic characteristic of the toner measured at a frequency of 6.28 rad/sec, the storage elastic modulus at a temperature of 180° C. is 1.0×102 Pa to 1.0×104 Pa; in a chart with the temperature on the x-axis and tan δ on the y-axis, tan δ has a peak having a peak top in the range of 50° C. to 70° C.; tan δ (P) at the peak top temperature is 2.0 to 10.0; the ratio of the tan δ (P) at the peak top temperature to tan δ (Tm) at a temperature of Tm (tan δ (P)/tan δ (Tm)) is in the range of 2.5 to 8.0.

摘要翻译： 包含调色剂颗粒的调色剂，每个调色剂颗粒都含有粘合剂树脂和着色剂，其中粘合剂树脂包括在DSC曲线中在55℃至120℃的温度下具有吸热峰的树脂; 调色剂的软化点Tm为90℃至140℃。 在以6.28rad / sec的频率测量的调色剂的粘弹特性中，在180℃的温度下的储能弹性模量为1.0×102Pa至1.0×104Pa; 在具有x轴上的温度和y轴上的tanδ的图表中，tanδ具有峰顶在50℃至70℃的范围内的峰。 峰顶温度下的tanδ（P）为2.0〜10.0; 在Tm温度（tanδ（P）/tanδ（Tm））下，峰顶温度下的tanδ（P）与tanδ（Tm）的比率在2.5〜8.0的范围内。

公开(公告)号：US08507170B2

公开(公告)日：2013-08-13

申请号：US13001052

申请日：2009-07-24

申请人： Tooru Takahashi ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Daisuke Yoshiba ,  Masami Fujimoto

发明人： Tooru Takahashi ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Daisuke Yoshiba ,  Masami Fujimoto

IPC分类号： G03G13/08

CPC分类号： G03G9/0836 ,  G03G5/0433 ,  G03G5/08214 ,  G03G5/14704 ,  G03G9/0833

摘要： An image-forming method includes forming an electrostatic image on an electrostatic image bearing member which has been charged; developing the electrostatic image to form a toner image; transferring the toner image on the electrostatic image bearing member with or without mediating an intermediate transferring member onto a transfer material; and fixing the toner image on the transfer material. The electrostatic image bearing member is a photosensitive member obtained by sequentially laminating a photoconductive layer and a surface layer formed of hydrogenated amorphous silicon carbide, and a sum of an atomic density of silicon atoms and an atomic density of carbon atoms in the surface layer of the photosensitive member is 6.60×1022 atoms/cm3 or more. The toner has a binder resin and magnetic iron oxide particles, and the magnetic iron oxide particles contain Fe(2+) at a content of 20.0 mass % or more and 25.0 mass % or less.

摘要翻译： 图像形成方法包括在已经充电的静电图像承载部件上形成静电图像; 使静电图像显影以形成调色剂图像; 在有或没有介质中间转印部件转印到转印材料上的情况下将调色剂图像转印到静电图像承载部件上; 并将调色剂图像固定在转印材料上。 静电图像承载部件是通过顺序层叠光电导层和由氢化非晶碳化硅形成的表面层而获得的感光部件，以及硅原子的原子密度和碳原子的原子密度之和 感光体为6.60×1022原子/ cm3以上。 调色剂具有粘合剂树脂和磁性氧化铁颗粒，磁性氧化铁颗粒含有20.0质量％以上且25.0质量％以下的Fe（2+）。

公开(公告)号：US20120196220A1

公开(公告)日：2012-08-02

申请号：US13354092

申请日：2012-01-19

申请人： Toru Takahashi ,  Katsuhisa Yamazaki ,  Shuhei Moribe ,  Daisuke Tsujimoto ,  Masami Fujimoto

发明人： Toru Takahashi ,  Katsuhisa Yamazaki ,  Shuhei Moribe ,  Daisuke Tsujimoto ,  Masami Fujimoto

IPC分类号： G03G9/083

CPC分类号： G03G9/0833 ,  G03G9/0823 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/08755

摘要： Provided is a magnetic toner capable of providing a stable image by suppressing sleeve contamination even under a high-temperature and high-humidity environment and under a normal-temperature and low-humidity environment and further suppressing large-particle fogging caused after the toner is left alone for a week. The magnetic toner contains toner particles, each of which contains a binder resin and a magnetic iron oxide particle, in which the binder resin has a polyester unit, the toner has i) a dielectric loss factor at 40° C. and 100 kHz of 0.50 pF/m or more but 0.90 pF/m or less, and ii) a true specific gravity of 1.50 g/cm3 or more but 1.85 g/cm3 or less.

摘要翻译： 提供一种即使在高温高湿环境下也能在常温低湿环境下即使通过抑制套筒污染来提供稳定图像的磁性调色剂，并且进一步抑制了在调色剂剩余之后引起的大颗粒起雾 独自一个星期。 磁性调色剂含有调色剂颗粒，每个调色剂颗粒含有粘合剂树脂和磁性氧化铁颗粒，其中粘合剂树脂具有聚酯单元，调色剂具有i）在40℃和100kHz的介电损耗系数为0.50 pF / m以上，0.90pF / m以下，ii）真比重为1.50g / cm 3以上，1.85g / cm 3以下。