公开(公告)号：US5751801A

公开(公告)日：1998-05-12

申请号：US895547

申请日：1997-07-16

申请人： Jun Murata ,  Naoki Shirai ,  Yoshiaki Nishimura ,  Yuzi Ishihara ,  Kiyoshi Mizoe ,  Tsunenori Ashibe

发明人： Jun Murata ,  Naoki Shirai ,  Yoshiaki Nishimura ,  Yuzi Ishihara ,  Kiyoshi Mizoe ,  Tsunenori Ashibe

IPC分类号： G03G15/02 ,  G03G15/16

CPC分类号： G03G15/0233 ,  G03G15/1685

摘要： A charging member suitable for charging, e.g., a photosensitive member for electrophotography, is provided with improve surface-properties. The charging member is surface with a resin formed by plasticizing a rigid polymer with a plasticizing polymer chemically bonded to the rigid polymer.

摘要翻译： 提供适于充电的充电构件，例如用于电子照相的感光构件，其具有改善的表面性质。 充电构件是通过用化学键合到刚性聚合物的增塑聚合物来塑化刚性聚合物形成的树脂的表面。

公开(公告)号：US5713067A

公开(公告)日：1998-01-27

申请号：US575701

申请日：1995-12-19

申请人： Kiyoshi Mizoe ,  Yuzi Ishihara ,  Eiji Funabashi ,  Tsunenori Ashibe

发明人： Kiyoshi Mizoe ,  Yuzi Ishihara ,  Eiji Funabashi ,  Tsunenori Ashibe

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging member for charging a charge-receiving member, such as an electrophotographic photosensitive member, by disposing the charging member in contact with the charge-receiving member and applying a voltage to the charging member is constituted by disposing an electroconductive support, an elastic layer, and a surface coating layer having a tensile modulus of above 2000 kgf/cm.sup.2 to at most 30000 kgf/cm.sup.2 in this order. The coating layer may preferably contain an acrylic polymer-modified urethane resin. The charging member is effective in providing the charge-receiving member with a nip portion showing a uniform electric resistance distribution for a long period to provide excellent images.

摘要翻译： 用于对诸如电子照相感光构件的电荷接收构件进行充电的充电构件通过将充电构件与电荷接收构件接触并向充电构件施加电压来构成，该电荷接收构件通过设置导电载体，弹性层 ，以及具有2000kgf / cm 2以上的拉伸弹性模量至30000kgf / cm 2以下的表面被覆层。 涂层可以优选含有丙烯酸类聚合物改性的聚氨酯树脂。 充电构件有效地为电荷接收构件提供长时间显示均匀电阻分布的压区，以提供优异的图像。

公开(公告)号：US5576805A

公开(公告)日：1996-11-19

申请号：US404912

申请日：1995-03-16

申请人： Yuzi Ishihara ,  Kiyoshi Mizoe ,  Tsunenori Ashibe

发明人： Yuzi Ishihara ,  Kiyoshi Mizoe ,  Tsunenori Ashibe

IPC分类号： G03G15/02 ,  G03G15/16

CPC分类号： G03G15/1685 ,  G03G15/0233 ,  G03G15/025

摘要： A charging member contactable to a member to be charged to electrically charge it, the improvement residing in that a microhardness of an end region, with respect to a longitudinal direction, of the charging member is larger than that in a central region of the charging member.

摘要翻译： 充电构件可接触被充电的构件对其充电，其特征在于，充电构件相对于纵向方向的端部区域的显微硬度大于充电构件的中心区域的显微硬度 。

公开(公告)号：US06897001B2

公开(公告)日：2005-05-24

申请号：US10254519

申请日：2002-09-26

申请人： Kiyoshi Mizoe ,  Tsuyoshi Takiguchi ,  Fumihiro Arahira ,  Masanori Ito

发明人： Kiyoshi Mizoe ,  Tsuyoshi Takiguchi ,  Fumihiro Arahira ,  Masanori Ito

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/09

CPC分类号： G03G13/09 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G2215/021

摘要： A toner suitable for use in an image forming method including a contact charging step is provided. The toner includes: toner particles comprising at least a binder resin and a colorant, and fine particles. The fine particles comprise: (i) a tungsten-containing tin oxide, or (ii) base particles, and a tungsten-containing tin compound coating the base particles, the fine particles contain tin (Sn) in a weight ratio (Sn/b) of 0.01 to 2.0 with respect to the base particles (B). In the fine particles, tungsten (W) is contained in a mol ratio (W/Sn) of 0.001 to 0.3 with respect to the tin (Sn).

摘要翻译： 提供适用于包括接触充电步骤的图像形成方法的调色剂。 调色剂包括：至少包含粘合剂树脂和着色剂的调色剂颗粒和细颗粒。 细颗粒包括：（i）含钨氧化锡，或（ii）基础颗粒和涂覆基础颗粒的含钨锡化合物，细颗粒含有重量比（Sn / b）的锡（Sn） ）相对于基础颗粒（B）为0.01〜2.0。 在微粒中，相对于锡（Sn），钨（W）的摩尔比（W / Sn）为0.001〜0.3。

公开(公告)号：US5790926A

公开(公告)日：1998-08-04

申请号：US623187

申请日：1996-03-28

申请人： Kiyoshi Mizoe ,  Shuichi Aita ,  Fumihiro Arahira ,  Yoshifumi Hano

发明人： Kiyoshi Mizoe ,  Shuichi Aita ,  Fumihiro Arahira ,  Yoshifumi Hano

IPC分类号： G03G15/02

CPC分类号： G03G15/0233

摘要： A charging member includes a conductive substrate and a surface layer which is to be brought into contact with a member to be charged. On the surface layer a raised fiber entangled material is provided.

摘要翻译： 充电构件包括导电衬底和要与要充电的构件接触的表面层。 在表面层上提供凸起的纤维缠结材料。

公开(公告)号：US06405007B1

公开(公告)日：2002-06-11

申请号：US09592548

申请日：2000-06-12

申请人： Shuichi Aita ,  Fumihiro Arahira ,  Kiyoshi Mizoe

发明人： Shuichi Aita ,  Fumihiro Arahira ,  Kiyoshi Mizoe

IPC分类号： G03G1302

CPC分类号： G03G15/0241 ,  G03G2215/022 ,  G03G2221/183

摘要： Magnetic particles for charging an image-bearing member electrostatically. The charging magnetic particles have magnetic particles, first surface coat layers containing a first surface coating agent and covering the surfaces of the magnetic particles and second surface coat layers containing a second surface coating agent and covering the first surface coat layers. The charging magnetic particles contain magnetic particles for charging which have a maximum chord length of 5 &mgr;m or larger, and the magnetic particles for charging which have a maximum chord length of 5 &mgr;m or larger having a minor-axis length/major-axis length standard deviation of 0.08 or more. Also, a process for producing the charging magnetic particles is disclosed together with a charging member, a process cartridge and an image forming apparatus which make use of the charging magnetic particles.

摘要翻译： 用于静电充电图像承载部件的磁性颗粒。 充电磁性颗粒具有磁性颗粒，第一表面涂层含有第一表面涂层并覆盖磁性颗粒表面，第二表面涂层含有第二表面涂层并覆盖第一表面涂层。 充电磁性粒子含有最大弦长5mum以上的充电用磁性粒子，具有短轴长/长轴长度标准的最大弦长为5μm以上的充电用磁性粒子 偏差0.08以上。 此外，与充电部件，处理盒和利用充电磁性颗粒的成像设备一起公开了一种用于制造充电磁性颗粒的方法。

公开(公告)号：US5447813A

公开(公告)日：1995-09-05

申请号：US352748

申请日：1994-12-02

申请人： Kazuyoshi Hagiwara ,  Toshiaki Nakahara ,  Minoru Shimojo ,  Masami Fujimoto ,  Kiyoshi Mizoe

发明人： Kazuyoshi Hagiwara ,  Toshiaki Nakahara ,  Minoru Shimojo ,  Masami Fujimoto ,  Kiyoshi Mizoe

IPC分类号： G03G9/087 ,  G03G9/083

CPC分类号： G03G9/08706 ,  G03G9/08702 ,  G03G9/08711

摘要： A toner for developing an electrostatic image is composed by a binder resin, and a magnetic material and/or a colorant. The binder resin (a) comprises a styrene resin polymerized in the presence of a poly-functional polymerization initiator, (b) provides a molecular weight distribution on a GPC chromatogram showing a maximum (P1) in a molecular weight range of 3.5.times.10.sup.3 -5.times.10.sup.4 and a maximum (P2) or shoulder in a molecular weight range of at least 1.times.10.sup.5, and (c) contains 15 wt. % or less of a resin component in a molecular weight range of at most 3.times.10.sup.3. Further the toner contains at most 100 ppm of styrene and benzaldehyde.

摘要翻译： 用于显影静电图像的调色剂由粘合剂树脂，磁性材料和/或着色剂组成。 粘合剂树脂（a）包括在多官能聚合引发剂存在下聚合的苯乙烯树脂，（b）提供在GPC色谱图上的分子量分布，其显示分子量范围为3.5×103-3×104的最大值（P1） 和至少1×10 5的分子量范围内的最大（P2）或肩峰，和（c）含有15wt。 分子量范围在3×10 3以下的树脂成分的％以下。 此外，调色剂含有至多100ppm的苯乙烯和苯甲醛。

公开(公告)号：US5436701A

公开(公告)日：1995-07-25

申请号：US341930

申请日：1994-11-16

申请人： Minoru Shimojo ,  Toshiaki Nakahara ,  Kazuyoshi Hagiwara ,  Masami Fujimoto ,  Kiyoshi Mizoe

发明人： Minoru Shimojo ,  Toshiaki Nakahara ,  Kazuyoshi Hagiwara ,  Masami Fujimoto ,  Kiyoshi Mizoe

IPC分类号： G03G5/05 ,  G03G5/14 ,  G03G9/083 ,  G03G9/087

CPC分类号： G03G9/083 ,  G03G9/08704 ,  G03G5/0532 ,  G03G5/14 ,  G03G9/08791

摘要： The present invention relates to an electrophotographic image forming method characterized in using a photosensitive member having an organic photoconductive layer and fluorine-containing resin particles in the surface, a contact charging means being in contact with the photosensitive member to electrostatically charge it, a contact transfer means being in contact with the photosensitive member to transfer the developed image to the transfer medium;wherein the toner to be used for developing the latent image is a magnetic toner comprising at least a magnetic material and a binder resin, wherein the binder resin contains a polymer synthesized from vinyl monomer in the presence of an aromatic organic solvent in an amount of 50 parts by weight or more on the basis of 100 parts of the binder resin, and the amount of the residual aromatic organic solvent in the magnetic toner is 500 ppm by weight or less.

摘要翻译： 本发明涉及一种电子照相成像方法，其特征在于在表面上使用具有有机光电导层和含氟树脂颗粒的感光构件，接触充电装置与感光构件接触以对其进行静电充电，接触转印 意指与感光构件接触以将显影图像转印到转印介质上; 其中用于显影潜像的调色剂是至少包含磁性材料和粘合剂树脂的磁性调色剂，其中所述粘合剂树脂含有由乙烯基单体在芳族有机溶剂存在下合成的聚合物，其量为50 基于100份粘合剂树脂重量份或更多份，并且磁性调色剂中残留芳族有机溶剂的量为500重量ppm以下。

公开(公告)号：US6026260A

公开(公告)日：2000-02-15

申请号：US175327

申请日：1998-10-20

申请人： Shuichi Aita ,  Fumihiro Arahira ,  Kiyoshi Mizoe ,  Toshio Takamori

发明人： Shuichi Aita ,  Fumihiro Arahira ,  Kiyoshi Mizoe ,  Toshio Takamori

IPC分类号： G03G15/02

CPC分类号： G03G15/0241 ,  G03G2215/022 ,  Y10S430/102

摘要： An electrophotographic apparatus includes: an electrophotographic photosensitive member, a charging device including a charging member formed of magnetic particles and disposed contactable to the photosensitive member so as to charge the photosensitive member based on a voltage applied thereto, exposure device, developing device, and a transfer device. The magnetic particles exhibit a good charging ability for a long period and therefore provide a good continuous image-forming performance because they are formed of ferrite particles including a ferrite having a very limited composition represented by the formula of:(MnO).sub.x (MgO).sub.y (Fe.sub.2 O.sub.3).sub.z,wherein x, y and z are numbers satisfying x+y+z.ltoreq.1, 0.2

摘要翻译： 电子照相设备包括：电子照相感光构件，充电装置，其包括由磁性颗粒形成的充电构件，并且设置成与感光构件接触，以便基于施加于其上的电压对感光构件充电，曝光装置，显影装置和 传输设备。 磁性颗粒长时间显示出良好的充电能力，因此提供了良好的连续成像性能，因为它们由铁氧体颗粒形成，该铁氧体颗粒包括由以下通式表示的非常有限组成的铁素体：（MnO）x（MgO） y（Fe 2 O 3）z，其中x，y和z是满足x + y + z 1，0.2

公开(公告)号：US5940662A

公开(公告)日：1999-08-17

申请号：US801921

申请日：1997-02-14

申请人： Yoshifumi Hano ,  Shuichi Aita ,  Tsutomu Kukimoto ,  Tsuyoshi Takiguchi ,  Fumihiro Arahira ,  Yuji Ishihara ,  Kiyoshi Mizoe

发明人： Yoshifumi Hano ,  Shuichi Aita ,  Tsutomu Kukimoto ,  Tsuyoshi Takiguchi ,  Fumihiro Arahira ,  Yuji Ishihara ,  Kiyoshi Mizoe

IPC分类号： G03G15/02

CPC分类号： G03G15/0241 ,  G03G2215/022

摘要： A charging apparatus which comprises an electrophotographic photosensitive member and a charging member which comprises magnetic particles and placed in contact with the electrophotographic photosensitive member to charge the electrophotographic photosensitive member upon application of a voltage, wherein each magnetic particle has a surface layer containing a polyolefin resin of which weight average molecular weight is 10,000 or more, and has a volume resistivity of 1.times.10.sup.4 to 1.times.10.sup.11 .OMEGA.cm.

摘要翻译： 一种充电装置，其包括电子照相感光构件和充电构件，所述充电构件包括磁性颗粒并与电子摄影感光构件接触以在施加电压时对电子照相感光构件充电，其中每个磁性颗粒具有含有聚烯烃树脂的表面层 其重均分子量为10,000以上，体积电阻率为1×10 14〜1×10 11欧米高。