公开(公告)号：US20070202424A1

公开(公告)日：2007-08-30

申请号：US11742177

申请日：2007-04-30

申请人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Syuhei Moribe ,  Kouji Nishikawa

发明人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Syuhei Moribe ,  Kouji Nishikawa

IPC分类号： G03G9/083

CPC分类号： G03G9/0819 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/09766

摘要： Provided is a magnetic toner comprising magnetic toner particles each comprising at least a binder resin and a magnetic iron oxide, the magnetic toner being excellent in developability and environmental stability, and being capable of reducing a toner consumption. A saturation magnetization σs and a remanent magnetization σr of the magnetic toner in a measured magnetic field of 795.8 kA/m are arranged in the range of 5 to 60 Am2/kg and in the range of 0.1 to 10.0 Am2/kg, respectively, and the binder resin having a polyester component polymerized by using a Ti chelate compound as a catalyst is used.

摘要翻译： 提供了一种磁性调色剂，其包含每个至少包含粘合剂树脂和磁性氧化铁的磁性调色剂颗粒，所述磁性调色剂的显影性和环境稳定性优异，并且能够降低调色剂消耗。 在795.8kA / m的测量磁场中的磁性调色剂的饱和磁化强度和残余磁化强度排列在5至60Am 2 / kg的范围内，并且在0.1至 使用10.0Am 2 / kg，并且使用具有通过使用Ti螯合化合物作为催化剂聚合的聚酯组分的粘合剂树脂。

公开(公告)号：US07097951B2

公开(公告)日：2006-08-29

申请号：US11212638

申请日：2005-08-29

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： G03G9/08

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.

摘要翻译： 本发明的调色剂至少包含粘合剂树脂，其包含作为主要成分的聚酯树脂，蜡和着色剂，其中在测量调色剂相对于甲醇和水的混合溶剂的润湿性的情况下 当光学透射率为80％和10％时，光波长为780nm时的混合溶剂的甲醇浓度为45〜65体积％。 在125℃的温度和5kg的负荷下，熔体指数（MI）为0.1至10g / 10min; 相对于粘合剂树脂的质量，该调色剂比较不溶于四氢呋喃的THF树脂成分（THF不溶成分）的量为5〜40质量％ 调色剂包含分子量为3000〜20,000的主峰的THF可溶成分，THF可溶成分中的分子量为10,000以下的成分的比例为50质量％以上， 根据通过凝胶渗透色谱测量的THF可溶性组分的色谱图。 根据本发明的调色剂，可以控制在高温和高湿度环境下离开之后的图像浓度的降低，以及在低速打印时由于充电 - 上升现象引起的图像浓度的下降。 此外，调色剂具有优异的定影性和高温偏移特性，并且控制了端部偏移的发生。

公开(公告)号：US06875549B2

公开(公告)日：2005-04-05

申请号：US10117232

申请日：2002-04-08

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

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

IPC分类号： G03G9/08 ,  G03G9/083

CPC分类号： G03G9/081 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/0833

摘要： A toner showing a high transferability and suitable for use in cleanerless image forming system is formed of toner particles comprising at least a binder resin and magnetic iron oxide. The toner is characterized by a specific circularity distribution relative to its weight-average particle size and a controlled degree of surface-exposed magnetic iron oxide providing an extract solution with hydrochloric acid showing an absorbance of 1.0-2.5 at a wavelength of 340 nm. The toner is suitably produced by a production system including a rotary mechanical pulverizer and a one-pass surface treatment apparatus for continuously applying a mechanical impact force to pulverized toner particles therein.

摘要翻译： 显示高转印性并适用于无清洁器成像系统的调色剂由至少包含粘合剂树脂和磁性氧化铁的调色剂颗粒形成。 调色剂的特征在于相对于其重均粒径具有特定的圆形度分布，并且受控程度的表面暴露的磁性氧化铁提供了在340nm的波长处显示吸光度为1.0-2.5的盐酸的提取溶液。 该调色剂通过包括旋转机械粉碎机和用于将粉碎的调色剂颗粒连续施加机械冲击力的单程表面处理设备的生产系统适当地制造。

公开(公告)号：US20050026089A1

公开(公告)日：2005-02-03

申请号：US10853144

申请日：2004-05-26

申请人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Kaori Hiratsuka

发明人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Kaori Hiratsuka

IPC分类号： C09C1/30 ,  C09C1/36 ,  G03G9/097 ,  G03G9/08 ,  C01B33/12

CPC分类号： G03G9/09725 ,  B82Y30/00 ,  C01P2004/64 ,  C01P2006/12 ,  C09C1/3081 ,  C09C1/3684 ,  G03G9/09708 ,  G03G9/09716 ,  Y10T428/2995

摘要： Hydrophobic inorganic fine particles characterized by being a mixture of at least small-particle-diameter inorganic fine particles having an average primary particle diameter of 5 to 25 nm and having a maximum peak particle diameter of 20 nm or less and large-particle-diameter inorganic fine particles having an average primary particle diameter which is 1.5 to 100 times the average primary particle diameter of the small-particle-diameter inorganic fine particles; the mixture being a mixture having been treated in the same treating tank to subject both the small-particle-diameter inorganic fine particles and large-particle-diameter inorganic fine particles simultaneously to hydrophobic treatment.

摘要翻译： 疏水性无机细颗粒，其特征在于平均一次粒径为5〜25nm，最大峰值粒径为20nm以下的至少小粒径的无机微粒和大粒径的无机微粒的混合物 平均一次粒径为小粒径无机微粒的平均一次粒径的1.5〜100倍的微粒; 该混合物是在相同处理槽中处理的混合物，同时使小颗粒直径的无机细颗粒和大颗粒直径的无机细颗粒同时进行疏水处理。

公开(公告)号：US20080187853A1

公开(公告)日：2008-08-07

申请号：US12056917

申请日：2008-03-27

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

发明人： Syuhei Moribe ,  Katsuhisa Yamazaki ,  Daisuke Yoshiba ,  Junko Hirata ,  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％ ，特性粘度为1.5×10 -1 dl / g以上的THF可溶性物质相对于GPC-RALLS-粘度计中THF可溶物质的总量的比例 分析为20.0质量％至40.0质量％。

公开(公告)号：US07150953B2

公开(公告)日：2006-12-19

申请号：US10660638

申请日：2003-09-12

申请人： Katsuhisa Yamazaki ,  Takashige Kasuya ,  Tsuyoshi Takiguchi ,  Kaori Hiratsuka

发明人： Katsuhisa Yamazaki ,  Takashige Kasuya ,  Tsuyoshi Takiguchi ,  Kaori Hiratsuka

IPC分类号： G03G9/08

CPC分类号： G03G9/09716 ,  G03G9/0821 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09725

摘要： A developer capable of providing an excellent image without causing a charging failure even after a long-term and repeated use contains a toner particle having a binder resin and a colorant, an inorganic fine particle, and a conductive fine particle, in which a volume average particle diameter Da of the conductive fine particle and an number average primary particle diameter Db of the inorganic fine particle satisfy the expression (1) below, and a rate of liberation “a” of the conductive fine particle from the toner particle is 40 to 95% and a rate of liberation “b” of the inorganic fine particle from the toner particle is 0.1 to 5% Da≧10Db.   (1)

摘要翻译： 即使长期重复使用也能够提供良好的图像而不引起充电故障的显影剂包含具有粘合剂树脂和着色剂，无机细颗粒和导电细颗粒的调色剂颗粒，其中体积平均 导电性微粒的粒径Da和无机微粒的数均一次粒径Db满足下述式（1），导电性微粒从调色剂粒子的释放速度“a”为40〜95 ％，并且来自调色剂颗粒的无机细颗粒的释放速率“b”为0.1至5％<？in-line-formula description =“In-Line Formulas”end =“lead”≥> Da> = 10Db。 （1）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US07141343B2

公开(公告)日：2006-11-28

申请号：US10418215

申请日：2003-04-18

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.

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：US5840457A

公开(公告)日：1998-11-24

申请号：US902945

申请日：1997-07-30

申请人： Motoo Urawa ,  Keita Nozawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yuki Karaki ,  Kazuo Maruyama ,  Masao Takano

发明人： Motoo Urawa ,  Keita Nozawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yuki Karaki ,  Kazuo Maruyama ,  Masao Takano

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/09 ,  G03G13/20 ,  G03G15/01 ,  G03G15/20 ,  G03G13/01

CPC分类号： G03G9/0904 ,  G03G13/20 ,  G03G9/0825 ,  G03G9/083 ,  G03G9/08782 ,  G03G9/08795 ,  G03G2215/0174

摘要： A magnetic black toner for electrophotography, includes: (a) magnetic black toner particles containing a binder resin, a magnetic material in 30-200 wt. parts per 100 wt. parts of the binder resin, and a first solid wax, and (b) first inorganic fine powder. The first solid wax (ii) provides a DSC heat-absorption main peak in a range of 60.degree.-120.degree. C., and (iii) shows a molecular weight distribution factor Mw/Mn of 1.0-2.0. The binder resin (iv) has a THF (tetrahydrofuran)-insoluble content of at most 5 wt. %, and (v) contains a THF-soluble content showing a GPC molecular weight distribution including a content (M1) of 40-70% in molecular weights of below 5.times.10.sup.4, a content (M2.ltoreq.M1) of 20-45% in molecular weights of 5.times.10.sup.4 -5.times.10.sup.5, and a content (M3

摘要翻译： 用于电子照相术的磁性黑色调色剂包括：（a）含有粘合剂树脂的磁性黑色调色剂颗粒，30-200重量份的磁性材料。 每100重量份 部分粘合剂树脂和第一固体蜡，和（b）第一无机细粉末。 第一固体蜡（ⅱ）在60〜120℃的范围内提供DSC吸热主峰，（iii）分子量分布因子Mw / Mn为1.0-2.0。 粘合剂树脂（iv）具有至多5重量％的THF（四氢呋喃） - 不溶性含量。 ％，（v）含有可溶于THF的含量，其含有分子量低于5×10 4的含量（M1）为40-70％的GPC分子量分布，含量（M2≤M1）为20-45％ 分子量为5×104-5×105，分子量超过5×10 5的含量（M3

公开(公告)号：US5700616A

公开(公告)日：1997-12-23

申请号：US594795

申请日：1996-01-31

申请人： Takashige Kasuya ,  Osamu Tamura ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

发明人： Takashige Kasuya ,  Osamu Tamura ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/09716 ,  G03G9/0819 ,  G03G9/097 ,  G03G9/09725

摘要： A developer for developing an electrostatic image has a toner which contains a particulate toner, a particulate silica A and a particulate silica B. The toner has a weight-average particle size of not larger than 12.0 .mu.m and a particle-number distribution showing not more than 50% of toner particles not larger than 4.0 .mu.m in particle size and not more than 10% of toner particles not smaller than 10.08 .mu.m in particle size, each of the toner particles having a toner composition containing at least a polymer component and a charge controlling agent. The particulate silica A is composed of silicone oil-treated silica particles and has an average particle size of not larger than 0.1 .mu.m, while the particulate silica B is composed of silicone oil-treated silica particles and has an average particle size of 0.5 to 50 .mu.m. The particulate silica B also has a particle-number distribution showing not more than 50% of silica particles not larger than 1.0 .mu.m in particle size and not more than 10% of silica particles not smaller than 100 .mu.m in particle size. Also disclosed is an image forming method which uses this developer.

摘要翻译： 用于显影静电图像的显影剂具有含有颗粒调色剂，颗粒状二氧化硅A和颗粒状二氧化硅B的调色剂。调色剂的重均粒径不大于12.0μm，粒径分布不显示 超过50％的调色剂颗粒的粒度不大于4.0μm，并且不超过10％的不小于10.08μm的调色剂颗粒，每个调色剂颗粒具有至少含有聚合物组分的调色剂组合物 和电荷控制剂。 颗粒状二氧化硅A由硅油处理二氧化硅粒子构成，平均粒径为0.1μm以下，而硅石B由硅油处理二氧化硅粒子构成，平均粒径为0.5〜 50亩。 颗粒状二氧化硅B还具有粒径分布，粒径分布不大于粒径不大于1.0μm的二氧化硅颗粒的50％，粒径不大于100μm的二氧化硅颗粒的10％以下。 还公开了使用该显影剂的图像形成方法。

公开(公告)号：US5582902A

公开(公告)日：1996-12-10

申请号：US145674

申请日：1993-11-04

申请人： Makoto Kanbayashi ,  Takeshi Menjo ,  Takayuki Nagatsuka ,  Takashige Kasuya ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kohji Inaba

发明人： Makoto Kanbayashi ,  Takeshi Menjo ,  Takayuki Nagatsuka ,  Takashige Kasuya ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kohji Inaba

IPC分类号： G03G7/00 ,  B32B5/16

CPC分类号： G03G7/0013 ,  G03G7/0053 ,  Y10T428/24893 ,  Y10T428/249953 ,  Y10T428/25 ,  Y10T428/259 ,  Y10T428/31504 ,  Y10T428/31786 ,  Y10T428/31855 ,  Y10T428/31935

摘要： A laminate film suitable for providing a transparency for an OHP (overhead projector) is formed by disposing an absorbing layer on a substrate. The absorbing layer functions to allow addition of a wax component to a toner so as to improve the color mixing characteristic and anti-offset characteristic of the toner without causing a wax exudation trace which is liable to occur in a fixed toner image if the absorbing layer is not provided.

摘要翻译： 通过在基板上设置吸收层，形成适于提供OHP（高射投影仪）的透明性的层压膜。 吸收层的作用是允许将蜡组分添加到调色剂中，以便改善调色剂的混色特性和抗偏移特性，而不会在固定的调色剂图像中容易发生易渗透的蜡渗出痕迹，如果吸收层 没有提供