公开(公告)号：US07473509B2

公开(公告)日：2009-01-06

申请号：US11259227

申请日：2005-10-26

申请人： Akihiko Itami ,  Masao Asano ,  Hiroshi Yamazaki

发明人： Akihiko Itami ,  Masao Asano ,  Hiroshi Yamazaki

IPC分类号： G03G13/08

CPC分类号： G03G15/09 ,  G03G5/0507 ,  G03G5/14704 ,  G03G2215/00957 ,  G03G2215/0609 ,  G03G2215/0811

摘要： A toner image is formed while a developing sleeve is rotated in a direction counter to that of an organic photoreceptor at the developing section and a surface layer of the organic photoreceptor contains metal oxide particles which have a number average primary particle diameter of 3 to 150 nm and are chosen from metal of the 3rd or 4th cycle of a periodic table.

摘要翻译： 当显影套筒在显影部分的方向上与有机感光体相反的方向旋转时，形成调色剂图像，有机感光体的表面层含有数均一次粒径为3〜150nm的金属氧化物粒子 并且选自周期表的第3或第4周期的金属。

公开(公告)号：US07258958B2

公开(公告)日：2007-08-21

申请号：US10869634

申请日：2004-06-15

申请人： Akihiko Itami ,  Kazuhisa Shida

发明人： Akihiko Itami ,  Kazuhisa Shida

IPC分类号： G03G15/02

CPC分类号： G03G5/047 ,  G03G5/043

摘要： An organic photoconductor, comprises a conductive base, a charge generating lager and a charge transport layer, wherein the charge generating lager and the charge transport layer are provided in this order on the conductive base, wherein when a curve is drawn by plotting integrated-values of a detected current in terms of time in measurement of transient photocurrent by TOF (time of flight) measurement with an electric field intensity of 10V/μm , crossing angle θ of two tangent lines tangent to the curve is 15° to 45°; and the charge transport lager has a film thickness of 20 to 35 μm.

摘要翻译： 一种有机光电导体，包括导电性基体，电荷产生层和电荷输送层，其中电荷产生层和电荷传输层依次设置在导电性基底上，其中，当通过绘制积分值 通过TOF（飞行时间）测量瞬时光电流测量时间的检测电流，电场强度为10V / mum，与曲线相切的两条切线的交叉角θ为15°至45°; 电荷输送量为20〜35μm的膜厚。

公开(公告)号：US07220527B2

公开(公告)日：2007-05-22

申请号：US10862307

申请日：2004-06-07

申请人： Masao Asano ,  Shigeki Takenouchi ,  Akihiko Itami ,  Satoshi Uchino

发明人： Masao Asano ,  Shigeki Takenouchi ,  Akihiko Itami ,  Satoshi Uchino

IPC分类号： G03G15/01

CPC分类号： G03G5/04 ,  G03G5/005 ,  G03G5/147 ,  G03G2215/0119

摘要： An image forming apparatus, comprising: an electrophotographic photoreceptor and an intermediate transfer member, wherein the photoreceptor and the intermediate transfer member have a condition represented by Formula 1: Wa

摘要翻译： 一种图像形成装置，包括：电子照相感光体和中间转印部件，其中感光体和中间转印部件具有由式1表示的条件：<？in-line-formula description =“In-line Formulas”end =“ 导线“？> Wa 其中Wa表示感光体表面的含水量（wt％），Wb表示水 中间转印体表面的含量（重量％）。

公开(公告)号：US07214457B2

公开(公告)日：2007-05-08

申请号：US10800208

申请日：2004-03-12

申请人： Akihiko Itami ,  Kazuhisa Shida

发明人： Akihiko Itami ,  Kazuhisa Shida

IPC分类号： G03G5/047

CPC分类号： G03G5/144 ,  G03G5/047 ,  G03G5/142

摘要： An organic photoconductor including a charge generating layer and a charge transport layer on a conductive base, wherein crossing angleθ of two tangent lines is 70° or more, two tangent lines which border on a curve drawn by plotting integrated values of detected current versus time in measurement of transient photocurrent (TOF), at a field intensity of 10V/μm; and film thickness of the charge transport layer is 8 to 15 μm.

摘要翻译： 包括导电性基体上的电荷产生层和电荷传输层的有机光电导体，其中两条切线的交叉角为70°以上，通过绘制检测到的电流与时间的积分值而绘制的两条切线相交， 瞬态光电流测量（TOF），场强为10V / mum; 电荷输送层的膜厚为8〜15μm。

公开(公告)号：US07166398B2

公开(公告)日：2007-01-23

申请号：US10798055

申请日：2004-03-11

申请人： Akihiko Itami ,  Tomoo Sakimura ,  Kazuhisa Shida ,  Masao Asano ,  Hiroshi Yamazaki

发明人： Akihiko Itami ,  Tomoo Sakimura ,  Kazuhisa Shida ,  Masao Asano ,  Hiroshi Yamazaki

IPC分类号： G03G5/14

CPC分类号： G03G5/10 ,  G03G5/142 ,  G03G5/144

摘要： An electrophotographic photoreceptor having an interlayer and a photosensitive layer on an electroconductive substrate, wherein the interlayer comprises any one of 1) an N-type semiconductive particle containing at least one of transition metals having an atomic number of 21 to 30, 39, 41 to 48 and 57 to 80, the total amount of the transition metals having an atomic number of 21 to 30, 39, 41 to 48 and 57 to 80 being from 100 ppm to 2.0% by mass, or 2) a metal oxide particle containing a silicon atom in a bond energy spectrum by the X-ray photoelectron spectroscopy at a ratio represented by the following Formula (1): Formula (1) 0.02≦Si/M≦0.55 Si: a peak intensity of a silicon atom among the bond energy spectrum, and M: a peak intensity of a metal atom among the bond energy spectrum.

摘要翻译： 一种在导电性基体上具有中间层和感光层的电子照相感光体，其中，所述中间层包含以下中的任一种：1）含有至少一种过渡金属的N型半导体颗粒，所述过渡金属的原子序数为21〜30,39,41〜 48和57〜80，原子序数为21〜30,39,41〜48,57〜80的过渡金属的总量为100〜2.0质量％，或2）含有 通过X射线光电子能谱以下式（1）表示的比例的键能谱中的硅原子：式（1）0.02 <= Si / M <= 0.55 Si：硅原子的峰强度 键能谱，M：键能谱中金属原子的峰强度。

公开(公告)号：US20050202335A1

公开(公告)日：2005-09-15

申请号：US10800569

申请日：2004-03-15

申请人： Hideo Yoshizawa ,  Akihiko Itami

发明人： Hideo Yoshizawa ,  Akihiko Itami

IPC分类号： G03G15/20

CPC分类号： G03G15/08 ,  G03G2215/0602

摘要： An image forming method comprising steps of forming a toner image by developing by a toner a latent image on a photoreceptor comprised of a layer formed on a substrate, transferring the toner image onto a recording medium on which the toner image is recorded and fixing, wherein the average circular degree of the toner is not less than 0.94, and the toner contains a wax comprising an ester of a carboxylic acid having carbon atoms of not less than 16 or an ester of an alcohol having carbon atoms of not less than 16, and the layer is a layer to be contacted to the toner in the developing step and contains an inorganic fine particles having a number average of primary particle diameter of approximately not less than 1 nm and less than 100 nm.

摘要翻译： 一种图像形成方法，包括以下步骤：通过调色剂显影调色剂图像，所述潜像由形成在基底上的层构成的感光体上转印，将调色剂图像转印到其上记录有调色剂图像并定影的记录介质上，其中 调色剂的平均圆度不小于0.94，并且调色剂含有包含碳原子数不少于16的羧酸的酯或碳原子数不少于16的醇的酯的蜡，以及 该层是在显影步骤中与调色剂接触的层，并且含有初级粒径的数均为大约不小于1nm且小于100nm的无机细颗粒。

公开(公告)号：US20050064309A1

公开(公告)日：2005-03-24

申请号：US10939356

申请日：2004-09-14

申请人： Akihiko Itami

发明人： Akihiko Itami

IPC分类号： G03G5/047 ,  G03G5/10 ,  G03G5/14 ,  G03G5/147

CPC分类号： G03G5/142 ,  G03G5/047 ,  G03G5/10

摘要： A photoreceptor for elctrophotography is disclosed. Thickness of the charge generation layer is 6-15 μm, thickness of the charge transport layer is 5-15 μm, and coefficient of working function of the under coat layer α is not more than 0.8.

摘要翻译： 公开了一种用于电子照相术的感光体。 电荷产生层的厚度为6-15μm，电荷输送层的厚度为5-15μm，底涂层α的作用函数系数不大于0.8。

公开(公告)号：US06797444B2

公开(公告)日：2004-09-28

申请号：US10192211

申请日：2002-07-10

申请人： Akihiko Itami

发明人： Akihiko Itami

IPC分类号： G03G514

CPC分类号： G03G5/0592 ,  G03G5/047 ,  G03G5/0539 ,  G03G5/0542 ,  G03G5/0578 ,  G03G5/0589 ,  G03G5/0596 ,  G03G5/14704 ,  G03G5/14708 ,  G03G5/14726 ,  G03G5/1473 ,  G03G5/14773 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795

摘要： An electrophotographic photoreceptor is disclosed. The photoreceptor contains a resinous layer comprises a resin comprising an organic polymer component and a siloxane condensation product component, and fluorine atom-containing particles.

摘要翻译： 公开了一种电子照相感光体。 感光体含有包含有机聚合物组分和硅氧烷缩合产物组分的树脂和含氟原子的颗粒的树脂层。

公开(公告)号：US06689522B2

公开(公告)日：2004-02-10

申请号：US10126255

申请日：2002-04-19

申请人： Hiroshi Yamazaki ,  Ken Ohmura ,  Akihiko Itami ,  Meizo Shirose ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

发明人： Hiroshi Yamazaki ,  Ken Ohmura ,  Akihiko Itami ,  Meizo Shirose ,  Asao Matsushima ,  Hiroyuki Kozuru ,  Tomoko Tanma

IPC分类号： G03G1301

CPC分类号： G03G9/0819 ,  G03G13/08 ,  G03G2215/0119

摘要： An image forming method, comprising steps of: forming a latent image on a photoreceptor having an electrically conductive support having thereon a charge generating layer and a charge transporting layer; developing the latent image with a developer containing a toner to form a toner image on the photoreceptor; and transferring the toner image onto an image receiving member, wherein the ratio of 50% volume particle diameter to 50% number particle diameter of the toner is within the range of 1.0 to 1.15, the ratio of the cumulative 75% volume particle diameter from the largest particle diameter to the cumulative 75% number particle diameter from the largest particle diameter of the toner is 1.0 to 1.20 and the number of toner particles having a particle diameter of not larger than 0.7×Dp50 is at most 10% of the number of all the toner particles in the toner.

摘要翻译： 一种图像形成方法，包括以下步骤：在其上具有电荷产生层和电荷输送层的导电载体的感光体上形成潜像; 用含有调色剂的显影剂显影潜像以在感光体上形成调色剂图像; 并将调色剂图像转印到图像接收部件上，其中调色剂的50体积粒径与50％数量的粒径之比在1.0至1.15的范围内，累积的75％体积粒径与 最大粒径与调色剂的最大粒径的累积75％数量的粒径为1.0〜1.20，粒径不大于0.7×Dp50的调色剂颗粒数量为全部数量的10％以下 调色剂中的调色剂颗粒。

公开(公告)号：US5234785A

公开(公告)日：1993-08-10

申请号：US792955

申请日：1991-11-15

申请人： Akihiko Itami ,  Akira Kinoshita ,  Kazumasa Watanabe

发明人： Akihiko Itami ,  Akira Kinoshita ,  Kazumasa Watanabe

IPC分类号： C09B67/22 ,  C09B67/50 ,  G03G5/05 ,  G03G5/06

CPC分类号： C09B67/0035 ,  G03G5/0696

摘要： An electrophotographic photoreceptor and a method for producing the same are disclosed, in which stability of coating solution of a photoreceptive layer is improved. The photoreceptor comprises a conductive support having thereon a photoreceptive layer containing a binder, a titanylphthalocyanine which has a peak in X-ray diffraction spectrum thereof by Cu-K.alpha. ray at a Bragg angle 2.theta. of 27.2.degree..+-.0.2.degree., and an organic solvent soluble phthalocyanine represented by the following formula I; ##STR1## wherein X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are each an alkyl group, an alkoxy group or a an aryloxy group, these groups each may have a substituent; M is a metal atom; Y is a halogen atom, an oxygen atom, a hydroxy group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, or a siloxy group, these organic groups may have a substituent; k, 1, m and n are each an integer of 0, 1, 2, 3 or 4; and p is an integer of 0, 1 or 2.

摘要翻译： 公开了电子照相感光体及其制造方法，其中改善了感光层的涂布溶液的稳定性。 感光体包括其上具有含有粘合剂的感光层的导电性载体，在布拉格角2θ为27.2°±0.2°的Cu-Kα射线的X射线衍射光谱中具有峰值的钛氧基酞菁，以及 由下式I表示的有机溶剂可溶性酞菁; （I）其中X1，X2，X3和X4各自为烷基，烷氧基或芳氧基，这些基团各自可以具有取代基; M是金属原子; Y是卤素原子，氧原子，羟基，烷氧基，芳氧基，烷硫基，芳硫基或甲硅烷氧基，这些有机基团可以具有取代基; k，1，m和n各自为0,1,2,3或4的整数; 并且p是0,1或2的整数。