公开(公告)号：US6027845A

公开(公告)日：2000-02-22

申请号：US51762

申请日：1998-04-16

申请人： Akira Kinoshita ,  Hirofumi Hayata ,  Toyoko Shibata ,  Tomoko Suzuki

发明人： Akira Kinoshita ,  Hirofumi Hayata ,  Toyoko Shibata ,  Tomoko Suzuki

IPC分类号： G03G5/06

CPC分类号： G03G5/0629 ,  G03G5/0605 ,  G03G5/0609 ,  G03G5/0637

摘要： An electrophotographic photoreceptor has a layered-type structure comprising an electrically conductive support having thereon a charge generating layer comprising a charge generating organic material and an electron transportable carrier transport layer comprising an electron transport organic material and a binder, and the electron transport material under a mutual molecular aggregation state of the electron transport material which results in a new adsorption component at 20 nm or more longer wavelength side than the maximum monomoleclar absorption wavelength of the electron transport material is incorporated in the electron transportable carrier transport layer and the weight ratio of the electron transport material to the binder of the electron transportable carrier transport layer ranges from 25/100 to 200/100.According to the foregoing, it is possible to provide an electrophotographic photoreceptor which has a small residual electric potential and can assure an image contrast.

摘要翻译： PCT No.PCT / JP97 / 02973。 371日期：1998年4月16日 102（e）日期1998年4月16日PCT 1997年8月27日PCT公布。 第WO98 / 09197号公报 日期1998年3月5日电子照相感光体具有层状结构，其包括导电性支持体，其上具有包含电荷产生有机材料的电荷产生层和包含电子传输有机材料和粘合剂的电子传输载体传输层， 在电子传输材料的相互分子聚集状态下的电子传输材料被引入电子传输材料的最大单分子吸收波长的20nm或更长的波长侧的新吸附组分， 电子传输材料与电子传输载体传输层的粘合剂的重量比为25/100至200/100。 根据上述，可以提供一种具有小残留电位的电子照相感光体，并且可以确保图像对比度。

公开(公告)号：US5942359A

公开(公告)日：1999-08-24

申请号：US896845

申请日：1997-07-18

申请人： Akira Kinoshita ,  Hirofumi Hayata ,  Toyoko Shibata ,  Tomoko Suzuki

发明人： Akira Kinoshita ,  Hirofumi Hayata ,  Toyoko Shibata ,  Tomoko Suzuki

IPC分类号： G03G5/047 ,  G03G5/06

CPC分类号： G03G5/0612 ,  G03G5/047 ,  G03G5/06 ,  G03G5/0609 ,  G03G5/0618 ,  G03G5/0629 ,  G03G5/0637 ,  G03G5/0661

摘要： Disclosed is an electrophotoreceptor comprising a conductive substrate and provided thereon, a photoreceptive layer comprising a charge generation material, an organic electron transporting charge transport material and a binder, wherein a layer transporting charge satisfies inequality .alpha..ltoreq.0.6, said .alpha. being a gradient of a straight line represented by the following formula (a):.PHI..sub.CTL =.alpha..multidot..PHI..sub.M +.beta. (a)wherein .PHI..sub.CTL represents work function of the layer transporting charge alone obtained by measuring a contact potential difference of the layer transporting charge on a conductive electrode material; .PHI..sub.M represents work function of the conductive electrode material; and .beta. is a constant.

摘要翻译： 公开了一种电子感受体，其包含导电性基板，其上设置有包含电荷产生材料，有机电子输送电荷输送材料和粘合剂的感光层，其中层输送电荷满足不等式α<0.6，所述α为梯度 由下式（a）表示的直线：PHI CTL =α×PHI M +β（a）其中PHI CTL表示单独通过测量层传输电荷的接触电位差而单独获得的层传输电荷的功函数 导电电极材料; PHI M表示导电电极材料的功函数; 而beta是一个常数。

公开(公告)号：US5589314A

公开(公告)日：1996-12-31

申请号：US490781

申请日：1995-06-15

申请人： Yoshihiko Etoh ,  Takeo Oshiba ,  Asao Matsushima ,  Hirofumi Hayata ,  Tomoo Sakimura ,  Tomoko Suzuki ,  Akira Kinoshita

发明人： Yoshihiko Etoh ,  Takeo Oshiba ,  Asao Matsushima ,  Hirofumi Hayata ,  Tomoo Sakimura ,  Tomoko Suzuki ,  Akira Kinoshita

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G13/04 ,  G03G13/22 ,  G03G15/04 ,  G03G15/043

CPC分类号： G03G13/22 ,  G03G5/0517 ,  G03G5/0521 ,  G03G5/0614 ,  G03G5/0659 ,  Y10S430/103

摘要： Disclosed is an image forming method using an electrophotographic photoreceptor comprising the steps of:(1) charging the electrophotographic photoreceptor, wherein said electrophotographic photoreceptor comprising a conductive support and provided thereon, a carrier generation layer and a carrier transportation layer, said carrier generation layer comprising a carrier generation material represented by formula 1 or 2 and having X-ray diffraction pattern having peaks at 6.3.degree..+-.0.2.degree., 12.4.degree..+-.0.2.degree., 25.3.degree..+-.0.2.degree. and 27.1.degree..+-.0.2.degree. in Bragg angle (2.theta.) when using Cu-K.alpha. ray as a X-ray radiation source in which said peak of 12.4.degree..+-.0.2.degree. has a maximum intensity and has a half width of 0.65.degree. or more; no peak being present at 11.5.degree..+-.0.2.degree.,(2) imagewise exposing the charged photoreceptor for an exposure time of 1.times.10.sup.-4 to 3.times.10.sup.-2 seconds,(3) developing the imagewise exposed photoreceptor to form an image, and(4) transferring the formed image to an image receiving material: ##STR1##

摘要翻译： 公开了一种使用电子照相感光体的图像形成方法，包括以下步骤：（1）对电子照相感光体进行充电，其中所述电子照相感光体包括导电性支持体，其上设置有载体产生层和载流子输送层，所述载体生成层包含 由式1或2表示的载体产生材料，具有在6.3°±0.2°，12.4°±0.2°，25.3°±0.2°和27.1°±0.2°的峰值的X射线衍射图 当使用Cu-Kα射线作为X射线辐射源时，Bragg角（2θ）为DEG，其中所述12.4°±0.2°的峰具有最大强度并且具有0.65°以上的半宽度; 在11.5°±0.2°没有峰存在，（2）使带电感光体成像曝光1×10 -4至3×10 -2秒的曝光时间，（3）显影图像曝光的感光体以形成图像，并且 4）将形成的图像传送到图像接收材料：

公开(公告)号：US5270140A

公开(公告)日：1993-12-14

申请号：US848107

申请日：1992-03-09

申请人： Naoto Abew ,  Naohiro Hirose ,  Hirofumi Hayata ,  Syozo Mitsui ,  Shinichi Suzuki ,  Osamu Sasaki ,  Yoshio Takizawa ,  Takeo Oshiba

发明人： Naoto Abew ,  Naohiro Hirose ,  Hirofumi Hayata ,  Syozo Mitsui ,  Shinichi Suzuki ,  Osamu Sasaki ,  Yoshio Takizawa ,  Takeo Oshiba

IPC分类号： C07C211/54 ,  G03G5/06 ,  G03G5/04

CPC分类号： G03G5/0672 ,  G03G5/0614

摘要： An electrophotographic photoreceptors containing a bisstyryl compound represented by the following formula I is disclosed. ##STR1## R.sup.0 and/or R.sup.00 represent methyl group, and the rest of Rs represent hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and Ar.sup.1 and Ar.sup.2 represent each an aromatic group.

摘要翻译： 公开了含有由下式I表示的双苯乙烯基化合物的电子照相感光体。 式I R 0和/或R 00表示甲基，其余的R 5表示氢原子或碳原子数1〜4的烷基。 Ar 1和Ar 2分别表示芳香族基团。

公开(公告)号：US5080990A

公开(公告)日：1992-01-14

申请号：US569944

申请日：1990-08-20

申请人： Hirofumi Hayata ,  Shinichi Suzuki ,  Osamu Sasaki

发明人： Hirofumi Hayata ,  Shinichi Suzuki ,  Osamu Sasaki

IPC分类号： C07C211/58 ,  C07C211/59 ,  C07C217/80 ,  G03G5/06

CPC分类号： C07C217/80 ,  C07C211/58 ,  C07C211/59 ,  G03G5/0614

摘要： An electrophotographic photoreceptor is disclosed, which comprises a conductive support and a photosensitive layer containing a compound represented by the following Formula I as acarrier-transporting substance: ##STR1## wherein Ar is a substituted or unsubstituted arylene group; R.sub.1 and R.sub.2 are each a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms or a substituted or unsubstituted aryl group; R.sub.3 and R.sub.4 are each a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkoxy group having 1 to 5 carbon atoms or a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms.The photoreceptor is excellent in charge characteristics, light sensitity and image formation and less causes fatigue deterioration after repeated use, thus having a superior durability.

摘要翻译： 公开了一种电子照相感光体，其包含导电性载体和含有下式I表示的化合物作为载体输送物质的感光层：其中Ar为取代或未取代的亚芳基; R1和R2各自为氢原子，取代或未取代的具有1至5个碳原子的烷基或取代或未取代的芳基; R 3和R 4各自为氢原子，羟基，取代或未取代的碳原子数1〜5的烷氧基或取代或未取代的碳原子数1〜5的烷基。 感光体的电荷特性，光敏性和成像性优异，反复使用后的疲劳劣化少，耐久性优异。

公开(公告)号：US5077163A

公开(公告)日：1991-12-31

申请号：US530594

申请日：1990-05-30

申请人： Hirofumi Hayata ,  Osamu Sasaki ,  Shinichi Suzuki

发明人： Hirofumi Hayata ,  Osamu Sasaki ,  Shinichi Suzuki

IPC分类号： C07C15/44 ,  C09B23/14 ,  G03G5/06

CPC分类号： G03G5/0672 ,  C09B23/141 ,  G03G5/0674

摘要： An electrophotographic photoreceptor having a layer that contain at least one compound represented by the following general formula (I): ##STR1## where R.sub.1 and R.sub.2 each represents an optionally substituted alkyl, aralkyl, aryl or heterocyclic group, provided that R.sub.1 and R.sub.2 may combine to form a cyclic amino group containing a nitrogen atom; X.sub.1 and X.sub.2 each represents a hydrogen atom, a hydroxyl group, a lower alkyl group having 1-5 carbon atoms, a lower alkoxy group having 1-5 carbon atoms, a halogen atom, an allyl group, an aryl group or an acylamino group.

摘要翻译： 具有含有至少一种由以下通式（I）表示的化合物的层的电子照相感光体：其中R 1和R 2各自表示任选取代的烷基，芳烷基，芳基或杂环基，条件是R 1和 R2可以结合形成含有氮原子的环状氨基; X1和X2各自表示氢原子，羟基，具有1-5个碳原子的低级烷基，具有1-5个碳原子的低级烷氧基，卤素原子，烯丙基，芳基或酰基氨基 。