公开(公告)号：US07939231B2

公开(公告)日：2011-05-10

申请号：US11817295

申请日：2005-06-24

申请人： Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Junko Nishiyama ,  Takashige Kasuya

发明人： Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Junko Nishiyama ,  Takashige Kasuya

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/08755 ,  G03G9/09716

摘要： A magnetic toner is disclosed having magnetic toner particles containing a binder resin and a magnetic iron oxide. The magnetic toner has a specific saturation magnetization and a specific residual magnetization in ascertain magnetic field. The binder resin includes a polyester component polymerized with an aromatic carboxylic acid titanium compound as a catalyst.

摘要翻译： 公开了一种磁性调色剂，其具有含有粘合剂树脂和磁性氧化铁的磁性调色剂颗粒。 磁性调色剂在确定磁场中具有特定的饱和磁化强度和特定的剩余磁化强度。 粘合剂树脂包括与芳族羧酸钛化合物作为催化剂聚合的聚酯组分。

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：US20100028793A1

公开(公告)日：2010-02-04

申请号：US12569145

申请日：2009-09-29

申请人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Kouji Nishikawa ,  Kentarou Kamae ,  Takashige Kasuya

发明人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Kouji Nishikawa ,  Kentarou Kamae ,  Takashige Kasuya

IPC分类号： G03G9/083

CPC分类号： G03G9/08791 ,  G03G9/0823 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/08755

摘要： An object of the present invention is to provide a toner excellent in ability to prevent electrostatic offset and fixation tailing. Provided is a toner including toner particles each containing at least a binder resin, a wax, and a magnetic iron oxide, and inorganic fine particles, in which the magnetic iron oxide contains at least a Ti component, an Al component, an Si component, and an Fe component; and the each component has some particular characteristics.

摘要翻译： 本发明的目的是提供一种防止静电胶印和定影拖尾的能力优良的调色剂。 提供一种调色剂，其包含至少含有粘合剂树脂，蜡和磁性氧化铁的调色剂颗粒和无机细颗粒，其中磁性氧化铁至少含有Ti组分，Al组分，Si组分， 和Fe成分; 并且每个组件具有一些特定的特征。

公开(公告)号：US07241547B2

公开(公告)日：2007-07-10

申请号：US11485467

申请日：2006-07-13

申请人： Tsuyoshi Takiguchi ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsuyoshi Takiguchi ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G21/10

CPC分类号： G03G9/09725 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09708 ,  G03G15/0241

摘要： A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 μm to 12.0 μm. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 μm to 4.0 μm with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 μm or less with respect to a volume-based particle diameter.

摘要翻译： 调色剂表现出优异的图像特性，并且即使将调色剂用于具有直接注入充电机构的同时显影清洗系统中也具有优异的充电特性。 调色剂包括调色剂颗粒和非磁性金属化合物细颗粒。 调色剂的重均粒径为3.0μm〜12.0μm。 金属化合物微粒是具有5×10 5以上的比表面积（cm 2以上/ cm 3以下）的导电性金属化合物微粒〜 100×10 5; 相对于基于体积的粒径分布为0.4μm至4.0μm的中等直径（D≤50），中等直径（D≤50<）小于重量 调色剂的平均粒径; 和相对于基于体积的粒径为6.0μm或更小的90％粒径D 90 N。

公开(公告)号：US20070147886A1

公开(公告)日：2007-06-28

申请号：US11681856

申请日：2007-03-05

申请人： Tsuyoshi TAKIGUCHI ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsuyoshi TAKIGUCHI ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G15/00

CPC分类号： G03G9/09725 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09708 ,  G03G15/0241

摘要： A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 μm to 12.0 μm. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 μm to 4.0 μm with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 μm or less with respect to a volume-based particle diameter.

摘要翻译： 调色剂表现出优异的图像特性，并且即使将调色剂用于具有直接注入充电机构的同时显影清洗系统中也具有优异的充电特性。 调色剂包括调色剂颗粒和非磁性金属化合物细颗粒。 调色剂的重均粒径为3.0μm〜12.0μm。 金属化合物微粒是具有5×10 5以上的比表面积（cm 2以上/ cm 3以上）的导电性金属化合物微粒〜 100x10 5; 相对于基于体积的粒径分布为0.4μm至4.0μm的中等直径（D≤50），中等直径（D <50>）为 小于调色剂的重均粒径; 和相对于基于体积的粒径为6.0μm或更小的90％粒径D 90 N。

公开(公告)号：US20060263710A1

公开(公告)日：2006-11-23

申请号：US11416143

申请日：2006-05-03

申请人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Junko Nishiyama ,  Miho Okazaki ,  Takashige Kasuya ,  Tomohisa Sano

发明人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Junko Nishiyama ,  Miho Okazaki ,  Takashige Kasuya ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0836 ,  G03G9/0819 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0838 ,  G03G9/0839

摘要： A magnetic toner including at least: a binder resin; and a magnetic body, in which, when magnetization at a magnetic field strength of 397.9 kA/m and a coercive force of the magnetic toner are denoted by σs (Am2/kg) and Hc (kA/m), respectively, a magnetic field strength at which the magnetic toner shows a magnetization value equal to 95% of σs is denoted by H95% (kA/m), and a number average particle size of the magnetic body is denoted by d (μm), H95%, Hc, and d satisfy the following expressions. 151

摘要翻译： 至少包括粘合剂树脂的磁性调色剂; 以及磁体，其中当磁场强度为397.9kA / m和磁性调色剂的矫顽力的磁化用Sigmas（Am 2 / kg / kg）表示，Hc（kA / m），磁性调色剂显示等于信标的95％的磁化强度的磁场强度由H95％（kA / m）表示，磁体的数均粒径由d（ 妈妈），H95％，Hc和d满足下列表达式。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 151 <？in-line-formula description =”In-line Formulas“end =”lead“？> 7.1 <？in-line-formula description =“In-line Formulas”end =“lead”？> 40

公开(公告)号：US20060257772A1

公开(公告)日：2006-11-16

申请号：US11485467

申请日：2006-07-13

申请人： Tsuyoshi Takiguchi ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

发明人： Tsuyoshi Takiguchi ,  Yosuke Morikawa ,  Takashige Kasuya ,  Kimihiro Yoshimura ,  Katsuhisa Yamazaki ,  Kaori Hiratsuka

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/09708 ,  G03G15/0241

摘要： A toner exhibits excellent image characteristics, and also has an excellent charging property even if the toner is used in a cleaning-simultaneous-with-developing system having a direct injection charging mechanism. The toner includes toner particles and non-magnetic metallic-compound fine particles. The weight average particle diameter of the toner is 3.0 μm to 12.0 μm. The metallic-compound fine particles are conductive metallic-compound fine particles having a specific surface area (cm2/cm3) of 5×105 to 100×105; a medium diameter (D50) of 0.4 μm to 4.0 μm with respect to a volume-based particle diameter distribution, the medium diameter (D50) being smaller than the weight average particle diameter of the toner; and a 90% particle diameter D90 of 6.0 μm or less with respect to a volume-based particle diameter.

公开(公告)号：US20060078811A1

公开(公告)日：2006-04-13

申请号：US11168506

申请日：2005-06-29

申请人： Junko Nishiyama ,  Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Takashige Kasuya

发明人： Junko Nishiyama ,  Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Takashige Kasuya

IPC分类号： G03G9/083

CPC分类号： G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/0839 ,  G03G9/08795 ,  G03G9/08797

摘要： According to the present invention, a magnetic toner comprising magnetic toner particles including at least a binder resin and magnetic particles is provided, wherein an isoelectric point of the magnetic particles is pH 4.0 or less, in order to provide a magnetic toner stably having an optimum charged amount regardless of environments so that a high-quality image having high blackness can be formed without causing any ghost phenomenon.

摘要翻译： 根据本发明，提供一种磁性调色剂，其包含至少包含粘合剂树脂和磁性颗粒的磁性调色剂颗粒，其中磁性颗粒的等电点为4.0以下，以便稳定地提供具有最佳的磁性调色剂 充电量，而不管环境如何，从而可以形成具有高黑度的高质量图像而不引起任何重影现象。

公开(公告)号：US07001703B2

公开(公告)日：2006-02-21

申请号：US10669376

申请日：2003-09-25

申请人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

发明人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

IPC分类号： G03G9/087

CPC分类号： G03G9/09725 ,  G03G5/04 ,  G03G5/0436 ,  G03G5/0514 ,  G03G9/0821 ,  G03G9/083 ,  G03G9/0835 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner of the present invention comprises at least a binder resin comprising as a main component a polyester resin, a wax, and a colorant, in which in case of measuring a wettability of the toner with respect to a mixed solvent of methanol and water in terms of an optical transimittance at an optical wavelength of 780 nm, a methanol concentration of the mixed solvent is in a range of 45 to 65% by volume when an optical transmittance is 80% and 10%, respectively; a melt index (MI) is of 0.1 to 10 g/10 min at a temperature of 125° C. and a load of 5 kg; the toner comparises a resin component insoluble to tetrahydrofuran (THF insoluble component) in an amount of 5 to 40% by mass based on a mass of the binder resin; and the toner comprises a THF soluble component having a main peak in a molecular weight region of 3,000 to 20,000, and has a proportion of a component having a molecular weight of 10,000 or less in the THF soluble component is 50% by mass or more, according to a chromatogram of the THF soluble component measured by gel permeation chromatography. According to the toner of the present invention, it is possible to control lowering of an image density after leaving under a high temperature and high humidity environment, and a decline in the image density due to a charge-rise phenomenon upon low rate printing. Further, the toner has excellent fixing property and high temperature offset characteristic, and occurring of the end-offset is controlled.

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。