公开(公告)号：US07422832B2

公开(公告)日：2008-09-09

申请号：US10786050

申请日：2004-02-26

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：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：US07368211B2

公开(公告)日：2008-05-06

申请号：US11168507

申请日：2005-06-29

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

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

IPC分类号： G03G9/083

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

摘要： To provide a magnetic toner which is excellent in durability and developability even in the case of being applied to high-speed developing process or being used in a large-capacity process cartridge amount of toner in which is increased, and which has high degree of blackness. Provided is a magnetic toner having magnetic toner particles containing at least a binder resin and magnetic material particles each comprising a predetermined amount of a titanium compound, characterized in that:1) the magnetic material particles have a predetermined amount of adsorbed moisture at a relative vapor pressure of 50%; and2) a difference between the amount of moisture adsorbed to the magnetic material particles in an adsorbing process for increasing a relative vapor pressure and the amount of moisture adsorbed to the magnetic material particles in a desorbing process for reducing a relative vapor pressure is reduced.

摘要翻译： 即使在应用于高速显影工艺的情况下也可以提供耐久性和显影性优异的磁性调色剂，或者用于大容量处理盒中的调色剂量增加，且具有高度的黑度 。 本发明提供一种磁性调色剂，其具有含有至少一种粘合剂树脂的磁性调色剂颗粒和各自包含预定量的钛化合物的磁性材料颗粒，其特征在于：1）磁性材料颗粒在相对蒸气中具有预定量的吸附水分 压力50％; 和2）降低相对蒸气压的解吸过程中吸附在相对蒸气压的吸附过程中吸附到磁性材料颗粒上的水分和吸附到磁性材料颗粒的水分之间的差异减小。

公开(公告)号：US20070059049A1

公开(公告)日：2007-03-15

申请号：US11472300

申请日：2006-06-22

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

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

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0607

摘要： An image forming method having the steps of controlling the layer thickness of a toner on a toner bearing member by means of a toner regulating blade, and developing with the toner an electrostatic latent image formed on an electrostatic latent image bearing member, the toner regulating blade has, at its part to be kept in touch with the toner bearing member, a specific ten-point average roughness Rz and a specific ratio (area of contact portion/area of non-contact portion) at a specific face pressure, and the toner has a specific average circularity and has a specific aerated bulk density. This image forming method promises superior developing performance in any environment, can keep sleeve negative ghost from occurring and can keep toner melt adhesion to toner regulating blade and toner melt adhesion to toner bearing member from occurring.

摘要翻译： 一种图像形成方法，具有以下步骤：通过调色剂调节刮板控制调色剂承载部件上的调色剂的层厚度，并且利用调色剂显影形成在静电潜像承载部件上的静电潜像，调色剂调节片 其特征在于与调色剂承载部件保持接触，特定的十点平均粗糙度Rz和特定比例（接触部分/非接触部分的面积）在特定的面压下，并且调色剂 具有特定的平均圆形度并具有特定的充气体积密度。 这种图像形成方法在任何环境中具有优异的显影性能，可以保持套筒阴影不发生，并且可以保持调色剂熔融粘附到调色剂调节片和调色剂熔融粘附到调色剂轴承部件上。

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：US20050048390A1

公开(公告)日：2005-03-03

申请号：US10902072

申请日：2004-07-30

申请人： Shuhei Moribe ,  Nobuyuki Okubo ,  Tsutomu Onuma ,  Hideto Iida ,  Koji Nishikawa ,  Takashige Kasuya

发明人： Shuhei Moribe ,  Nobuyuki Okubo ,  Tsutomu Onuma ,  Hideto Iida ,  Koji Nishikawa ,  Takashige Kasuya

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/08711 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08708 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner is composed of toner particles including toner base particles containing atleast a binder resin and a colorant, and inorganic fine particles. The toner base particles having a specific circle-equivalent diameter as measured with a flow type particle image analizer have a specific average circularity. The toner base particles have a specific surface roughness as measured with a scanning probe microscope. The binder resin contains at least a vynil resin having as partial structure a linkage formed by the reaction of a carboxyl group with an epoxy group.

摘要翻译： 调色剂由包括至少含有粘合剂树脂和着色剂的调色剂基础颗粒和无机细颗粒的调色剂颗粒组成。 用流动型颗粒图像分析仪测量的具有特定圆当量直径的调色剂基础颗粒具有特定的平均圆形度。 调色剂基础颗粒具有用扫描探针显微镜测量的比表面粗糙度。 粘合剂树脂含有至少一种具有通过羧基与环氧基的反应形成的连接部分结构的野草树脂。

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