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。

公开(公告)号：US07897316B2

公开(公告)日：2011-03-01

申请号：US11459616

申请日：2006-07-24

申请人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Shuichi Hiroko ,  Masaaki Taya

发明人： Katsuhisa Yamazaki ,  Masami Fujimoto ,  Shuichi Hiroko ,  Masaaki Taya

IPC分类号： G03G9/087

CPC分类号： G03G9/08724 ,  G03G9/08728 ,  G03G9/08733 ,  G03G9/08737 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： Provided is a toner including at least: a binder resin; and a colorant, in which: the binder resin contains at least a polyester unit and a vinyl copolymer unit; a main peak MpA is present in the molecular weight region of 2,000 to 7,000 in a molecular weight distribution measured by means of gel permeation chromatography (GPC) of a specific tetrahydrofuran (THF) soluble matter A measured by a specific method; a main peak MpB is present in the molecular weight region of 5,000 to 10,000 in a molecular weight distribution measured by means of GPC of a specific THF soluble matter B which contains a component of a molecular weight region of 100,000 or less in range from 70 to 100 mass %, and the peak molecular weight MpA of the THF soluble matter A and the peak molecular weight MpB of the THF soluble matter B satisfy a specific equation.

摘要翻译： 提供一种调色剂，至少包含：粘合剂树脂; 和着色剂，其中：粘合剂树脂至少含有聚酯单元和乙烯基共聚物单元; 在通过特定四氢呋喃（THF）可溶性物质A通过特定方法测量的凝胶渗透色谱法（GPC）测量的分子量分布中，主峰MpA存在于2,000至7000的分子量区域中; 主峰MpB存在于5,000至10,000的分子量区域中，分子量分布通过特定THF可溶物质B的GPC测量，其分子量范围为100,000或更小，其范围为70至 100质量％，THF可溶物质A的峰值分子量MpA和THF可溶物质B的峰值分子量MpB满足特定的方程式。

公开(公告)号：US07740998B2

公开(公告)日：2010-06-22

申请号：US11354850

申请日：2006-02-16

申请人： Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Masami Fujimoto

发明人： Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Masami Fujimoto

IPC分类号： G03G9/083

CPC分类号： G03G9/0833 ,  G03G9/0821 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09733 ,  G03G9/09741 ,  G03G9/09775

摘要： A positively chargeable developer is provided which is capable of providing stable image quality without causing any image defect even in long-term use. The developer includes at least positively chargeable toner particles each containing at least a binder resin and magnetic iron oxide, silica and an inorganic fine powder. A unconfined yield strength at a major consolidation stress of 5 kPa of the developer is in the range of 0.1 to 2.5 kPa, and a unconfined yield strength at a major consolidation stress of 20 kPa of the developer is in the range of 2.5 to 5.5 kPa.

摘要翻译： 提供了可充电的显影剂，其能够提供稳定的图像质量，而不会在长期使用的情况下引起任何图像缺陷。 显影剂包括至少可以充满电的调色剂颗粒，每个调色剂颗粒至少含有粘合剂树脂和磁性氧化铁，二氧化硅和无机细粉末。 在显影剂5kPa的主要固结应力下的无约束屈服强度在0.1至2.5kPa的范围内，显影剂的20kPa的主要固结应力下的无约束屈服强度在2.5至5.5kPa的范围内 。

公开(公告)号：US07537877B2

公开(公告)日：2009-05-26

申请号：US11947523

申请日：2007-11-29

申请人： Daisuke Yoshiba ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Junko Nishiyama ,  Shuichi Hiroko ,  Masami Fujimoto ,  Takashige Kasuya

发明人： Daisuke Yoshiba ,  Katsuhisa Yamazaki ,  Syuhei Moribe ,  Junko Nishiyama ,  Shuichi Hiroko ,  Masami Fujimoto ,  Takashige Kasuya

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  G03G9/0812 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/08786 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner is provided which can stably provide a favorable density stability, line reproducibility and dot reproducibility even in high-speed copying machines, printers and the like which form high resolution latent images over a long period regardless of environmental conditions, and can provide the image quality adaptable to embedded pattern printing, QR code printing and the like. The present invention is characterized in that the toner which includes toner particles including at least a binder resin and a colorant, and a fine silica powder, has a volume median diameter (D50) of not less than 0.70 μm and not more than 3.00 μm, and a total pore volume of not more than 0.200 cm3/g, measured in the range of the pore diameter from not less than 1.7 nm and not more than 300.0 nm.

摘要翻译： 即使在环境条件下长时间形成高分辨率潜像的高速复印机，打印机等中，也可以稳定地提供良好的密度稳定性，线重现性和点再现性的调色剂，并且可以提供图像 质量适应嵌入式图案打印，QR码打印等。 本发明的特征在于，包括至少包含粘合剂树脂和着色剂的调色剂颗粒和二氧化硅微粉的调色剂的体积中值粒径（D50）不小于0.70μm和不大于3.00μm， 并且在孔径范围内测量的不小于1.7nm且不大于300.0nm的总孔体积不大于0.200cm 3 / g。

公开(公告)号：US20070026336A1

公开(公告)日：2007-02-01

申请号：US11459616

申请日：2006-07-24

申请人： KATSUHISA YAMAZAKI ,  Masami Fujimoto ,  Shuichi Hiroko ,  Masaaki Taya

发明人： KATSUHISA YAMAZAKI ,  Masami Fujimoto ,  Shuichi Hiroko ,  Masaaki Taya

IPC分类号： G03G9/087

CPC分类号： G03G9/08724 ,  G03G9/08728 ,  G03G9/08733 ,  G03G9/08737 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： Provided is a toner including at least: a binder resin; and a colorant, in which: the binder resin contains at least a polyester unit and a vinyl copolymer unit; a main peak MpA is present in the molecular weight region of 2,000 to 7,000 in a molecular weight distribution measured by means of gel permeation chromatography (GPC) of a specific tetrahydrofuran (THF) soluble matter A measured by a specific method; a main peak MpB is present in the molecular weight region of 5,000 to 10,000 in a molecular weight distribution measured by means of GPC of a specific THF soluble matter B which contains a component of a molecular weight region of 100,000 or less in range from 70 to 100 mass %, and the peak molecular weight MpA of the THF soluble matter A and the peak molecular weight MpB of the THF soluble matter B satisfy a specific equation.

摘要翻译： 提供一种调色剂，至少包含：粘合剂树脂; 和着色剂，其中：粘合剂树脂至少含有聚酯单元和乙烯基共聚物单元; 在通过特定四氢呋喃（THF）可溶性物质A通过特定方法测量的凝胶渗透色谱法（GPC）测量的分子量分布中，主峰MpA存在于2,000至7000的分子量区域中; 主峰MpB存在于5,000至10,000的分子量区域中，分子量分布通过特定THF可溶物质B的GPC测量，其分子量范围为100,000或更小，其范围为70至 100质量％，THF可溶物质A的峰值分子量MpA和THF可溶物质B的峰值分子量MpB满足特定的方程式。

公开(公告)号：US20060160006A1

公开(公告)日：2006-07-20

申请号：US11354850

申请日：2006-02-16

申请人： Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Masami Fujimoto

发明人： Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Masami Fujimoto

IPC分类号： G03G9/08

CPC分类号： G03G9/0833 ,  G03G9/0821 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09733 ,  G03G9/09741 ,  G03G9/09775

摘要： A positively chargeable developer is provided which is capable of providing stable image quality without causing any image defect even in long-term use. The developer includes at least positively chargeable toner particles each containing at least a binder resin and magnetic iron oxide, silica and an inorganic fine powder. A unconfined yield strength at a major consolidation stress of 5 kPa of the developer is in the range of 0.1 to 2.5 kPa, and a unconfined yield strength at a major consolidation stress of 20 kPa of the developer is in the range of 2.5 to 5.5 kPa.

摘要翻译： 提供了可充电的显影剂，其能够提供稳定的图像质量，而不会在长期使用的情况下引起任何图像缺陷。 显影剂包括至少可以充满电的调色剂颗粒，每个调色剂颗粒至少含有粘合剂树脂和磁性氧化铁，二氧化硅和无机细粉末。 在显影剂5kPa的主要固结应力下的无约束屈服强度在0.1至2.5kPa的范围内，显影剂的20kPa的主要固结应力下的无约束屈服强度在2.5至5.5kPa的范围内 。

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：US09097998B2

公开(公告)日：2015-08-04

申请号：US13990369

申请日：2011-12-22

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

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

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/087 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner is provided which is superior in the long-term storage stability and has high low-temperature fixing properties. In a DSC curve as measured with a differential scanning calorimeter, the toner has a glass transition temperature of not less than 50° C. and not more than 60° C.; and the toner has, in regard to a resin composition contained therein, a difference of not less than 0.060 W/g in heat flow between a point on the curve at a temperature of 40° C. and a baseline in the range exceeding the glass transition temperature; and in viscoelastic characteristics measured at a frequency of 6.28 rad/sec, the toner has a storage elastic modulus (G′40) at a temperature of 40° C. of not less than 7.0×108 Pa and not more than 2.0×109 Pa, and a storage elastic modulus (G′70) at a temperature of 70° C. of not less than 1.0×105 Pa and not more than 1.0×107 Pa.

摘要翻译： 提供了一种调色剂，其长期保存稳定性优异且具有高的低温定影性。 在用差示扫描量热计测量的DSC曲线中，调色剂的玻璃化转变温度不低于50℃且不超过60℃。 并且对于其中所含的树脂组合物，调色剂在温度为40℃的曲线上的点与在超过玻璃的范围内的基线之间的热流中的热流不同为0.060W / g 转变温度; 并且以6.28rad / sec的频率测量的粘弹特性中，调色剂在40℃的温度下的储能弹性模量（G'40）不小于7.0×10 8 Pa且不大于2.0×10 9 Pa ，并且在70℃的温度下的储能弹性模量（G'70）不小于1.0×10 5 Pa且不大于1.0×10 7 Pa。