公开(公告)号：US20090197195A1

公开(公告)日：2009-08-06

申请号：US12361642

申请日：2009-01-29

申请人： Eiichi SAKAI ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

发明人： Eiichi SAKAI ,  Yoshihiko Eto ,  Kimiyuki Itou ,  Akihiko Itami ,  Takeo Oshiba

IPC分类号： G03G13/16 ,  G03G15/00

CPC分类号： G03G15/751 ,  G03G5/00 ,  G03G5/04 ,  G03G5/0525 ,  G03G5/0696 ,  G03G15/757

摘要： Provide is an electrophotographic photoreceptor exhibiting excellent evenness of halftone images together with fine line reproduction, and an image forming method thereof, as to a photoreceptor in which an oxytitanium phthalocyanine pigment having a maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction. Also disclosed is an electrophotographic photoreceptor possessing a body having cylindrical conductive support provided thereon photosensitive layer containing oxytitanium phthalocyanine pigment having maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction, and flanges jointed at both ends of the body, wherein at least one of flanges is fitted with driving shaft having drive hole having at least 3 sides, and a ratio B/A of cross-sectional area B of engaging part of rotation shaft to rotate the electrophotographic photoreceptor with respect to cross-sectional area A of the drive hole is 0.890-0.998.

摘要翻译： 提供一种电子照相感光体，其具有优异的半色调图像均匀度以及细线再现性及其成像方法，其中，将具有布拉格角（2θ±0.2°）的最大衍射峰的氧钛酞菁颜料 CuKαX射线衍射中为27.2°。 还公开了一种电子照相感光体，其具有在CuKαX射线衍射中在其上设置有具有在布拉格角（2θ±0.2°）为27.2°的最大衍射峰的感光层的感光层上的圆柱形导电性支持体， 主体的端部，其中至少一个凸缘装配有具有至少3个侧面的驱动孔的驱动轴和旋转轴的接合部分的横截面积B的比率B / A，以使电子照相感光体相对于 驱动孔的横截面积A为0.890-0.998。

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：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：US07074539B2

公开(公告)日：2006-07-11

申请号：US10925642

申请日：2004-08-25

申请人： Toyoko Shibata ,  Naoto Abe ,  Akihiko Itami ,  Takeo Oshiba

发明人： Toyoko Shibata ,  Naoto Abe ,  Akihiko Itami ,  Takeo Oshiba

IPC分类号： G03G15/20

CPC分类号： G03G5/0521 ,  G03G5/0517 ,  G03G5/0592 ,  G03G5/0596 ,  G03G5/06 ,  G03G5/0614 ,  G03G5/0666 ,  G03G5/0672 ,  G03G9/0819 ,  G03G9/0827

摘要： An electrophotographic photoreceptor is disclosed. The charge transport material comprising a mixture of stereoisomers as a charge transport material and glass transition point Tgb of the binder resin of the charge transport layer and glass transition point Tgl of the charge transport layer satisfy 100° C.

摘要翻译： 公开了一种电子照相感光体。 包含作为电荷输送材料的立体异构体的混合物和电荷输送层的粘合剂树脂的玻璃化转变点Tgb和电荷输送层的玻璃化转变温度Tg1的电荷输送材料满足<βin-line-formula description =“In “line”=“lead”→> 100°C

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：US06399262B1

公开(公告)日：2002-06-04

申请号：US09534200

申请日：2000-03-24

申请人： Takeo Oshiba ,  Akihiko Itami ,  Tomoo Sakimura ,  Yohko Kitahara ,  Masahiko Kurachi ,  Kazuhisa Shida

发明人： Takeo Oshiba ,  Akihiko Itami ,  Tomoo Sakimura ,  Yohko Kitahara ,  Masahiko Kurachi ,  Kazuhisa Shida

IPC分类号： G03G5047

CPC分类号： G03G5/078 ,  G03G5/104 ,  Y10S430/103

摘要： An electrophotographic photoreceptor is disclosed. The photoreceptor has a photosensitive layer provided on an electrically conductive support which has a sealed alumite film, a surface layer of said electrophotographic photoreceptor comprises a hardenable siloxane resin having charge transportability or a hardenable siloxane resin comprising a partial structure having charge transportability.

摘要翻译： 公开了一种电子照相感光体。 感光体具有设置在具有密封的耐氧化铝膜的导电性载体上的感光层，所述电子照相感光体的表面层包含具有电荷传输性的可硬化硅氧烷树脂或包含具有电荷传输性的部分结构的可硬化硅氧烷树脂。

公开(公告)号：US5679488A

公开(公告)日：1997-10-21

申请号：US556131

申请日：1995-11-09

申请人： Akihiko Itami ,  Yoshiaki Takei ,  Chikusa Fukumoto ,  Takeo Oshiba ,  Yoshihiko Etoh

发明人： Akihiko Itami ,  Yoshiaki Takei ,  Chikusa Fukumoto ,  Takeo Oshiba ,  Yoshihiko Etoh

IPC分类号： G03G5/147 ,  G03G5/047

CPC分类号： G03G5/14704

摘要： Disclosed is an electrophotographic photoreceptor comprising a conductive support and provided thereon an intermediate layer, a carrier generation layer and a carrier transport layer, wherein an outermost layer of said electrophotographic photoreceptor contains silica particle each containing an aluminium ingredient of not more than 1000 ppm, a calcium ingredient of not more than 300 ppm and a iron ingredient of not more than 1000 ppm, and said silica particles have a volume average particle size of 0.05 through 5 .mu.m.

摘要翻译： 公开了一种电子照相感光体，其包含导电性支持体，在其上设置有中间层，载体产生层和载体输送层，其中，所述电子照相感光体的最外层含有二氧化硅颗粒，每个二氧化硅颗粒均含有不超过1000ppm的铝成分， 钙成分不大于300ppm，铁成分不超过1000ppm，所述二氧化硅粒子的体积平均粒径为0.05〜5μm。

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。