公开(公告)号：US6040100A

公开(公告)日：2000-03-21

申请号：US261504

申请日：1999-03-03

申请人： Masato Tanaka ,  Hideyuki Takai ,  Kouichi Nakata

发明人： Masato Tanaka ,  Hideyuki Takai ,  Kouichi Nakata

IPC分类号： G03G5/06

CPC分类号： G03G5/0683 ,  G03G5/0675 ,  G03G5/0677 ,  G03G5/0679 ,  G03G5/0681 ,  G03G5/0687 ,  G03G5/069 ,  G03G5/0694

摘要： An electrophotographic photosensitive member is formed of a support, and a photosensitive layer disposed on the support. The photosensitive layer is characterized by containing an azo pigment having an organic group represented by formula (1) below: wherein A denotes a residue group of formula (1A) below: ##STR1## and k.sub.1, k.sub.2, Z.sub.1, Z.sub.2, D; R.sub.1 and R.sub.2 are defined in the text. The group of the formula (1) may provide at least one of up to 4 azo-substituents of the azo pigment having an entire structure represented by ##STR2## wherein Ar denotes an aromatic or heterocyclic core unit, Cp denotes a coupler residue group, and --(N.dbd.N--Cp) denotes such an azo-substituent. The photosensitive member can exhibit good electrophotographic performances including high and stable sensitivity on repetitive use.

摘要翻译： 电子照相感光构件由支撑体和设置在支撑体上的感光层形成。 感光层的特征在于含有具有由下式（1）表示的有机基团的偶氮颜料：其中A表示下式（1A）的残基：和k1，k2，Z1，Z2，D; R1和R2在文中定义。 式（1）的基团可以提供具有由Ar表示芳族或杂环核心单元表示的整个结构的至多4个偶氮颜料的偶氮取代基中的至少一个，Cp表示成色剂残基，和 - （ N = N-Cp）表示这种偶氮取代基。 感光构件可以表现出良好的电子照相性能，包括对重复使用的高且稳定的灵敏度。

公开(公告)号：US6139997A

公开(公告)日：2000-10-31

申请号：US263077

申请日：1999-03-08

申请人： Masato Tanaka ,  Kouichi Nakata

发明人： Masato Tanaka ,  Kouichi Nakata

IPC分类号： C09B29/20 ,  C09B35/033 ,  C09B35/378 ,  C09B35/50 ,  G03G5/06

CPC分类号： C09B35/378 ,  C09B29/20 ,  C09B35/033 ,  C09B35/50 ,  C09B56/04 ,  C09B56/16 ,  G03G5/0677 ,  G03G5/0679 ,  G03G5/0681 ,  G03G5/0683 ,  G03G5/0687 ,  G03G5/0688 ,  G03G5/069 ,  G03G5/0692

摘要： An electrophotographic photosensitive member is formed of a support, and a photosensitive layer disposed on the support. The photosensitive layer is characterized by containing an azo pigment having an organic group represented by formula (1) below: ##STR1## wherein X.sub.1, Z.sub.1, k.sub.1, B, A, R.sub.1 and R.sub.2 are defined in the text. The group of the formula (1) may provide at least one of up to 4 azo-substituents of the azo pigment having an entire structure represented byAr.paren open-st.N.dbd.N--Cp) 1-4,wherein Ar denotes an aromatic or heterocyclic core unit, Cp denotes a coupler residue group, and --(N.dbd.N--Cp) denotes such an azo-substituent. The photosensitive member can exhibit good electro-photographic performances including high and stable sensitivity on repetitive use.

摘要翻译： 电子照相感光构件由支撑体和设置在支撑体上的感光层形成。 感光层的特征在于含有具有下式（1）表示的有机基团的偶氮颜料：其中X1，Z1，k1，B，A，R1和R2在文中定义。 式（1）的基团可以提供具有由Ar + 545N = N-Cp）1-4表示的整个结构的至多4个偶氮颜料的偶氮取代基中的至少一个，其中Ar表示芳族或杂环核 单元，Cp表示成色剂残基， - （N = N-Cp）表示这种偶氮取代基。 感光构件可以表现出良好的电摄影性能，包括在重复使用时具有高且稳定的灵敏度。

公开(公告)号：US06270936B1

公开(公告)日：2001-08-07

申请号：US09379920

申请日：1999-08-24

申请人： Masato Tanaka ,  Kouichi Nakata

发明人： Masato Tanaka ,  Kouichi Nakata

IPC分类号： G03G1502

CPC分类号： G03G5/0696

摘要： An electrophotographic photosensitive member comprising a support and a photosensitive layer. The photosensitive layer contains an oxytitanium phthalocyanine having the strongest peak at 27.2°±0.2° of the diffraction angle (2&thgr;) in CuK&agr; characteristic X-ray diffraction and a hydroxygallium phthalocyanine having strong peaks at 7.4°±0.2° and 28.2°±0.2° of the diffraction angle (2&thgr;) in CuK&agr; characteristic X-ray diffraction. A process cartridge and an electrophotographic apparatus, employing the electrophotographic photosensitive member, are also disclosed.

摘要翻译： 一种电子照相感光构件，包括支撑体和感光层。 感光层含有在CuKalpha特征X射线衍射中衍射角（2θ）在27.2°±0.2°处具有最强峰的氧钛酞菁和在7.4°±0.2°和28.2°±0.2°处具有强峰的羟基镓酞菁 的衍射角（2θ）在CuKalpha特征X射线衍射中。 还公开了一种使用电子照相感光构件的处理盒和电子照相设备。

公开(公告)号：US06218063B1

公开(公告)日：2001-04-17

申请号：US09379732

申请日：1999-08-24

申请人： Masato Tanaka ,  Kouichi Nakata ,  Kan Tanabe

发明人： Masato Tanaka ,  Kouichi Nakata ,  Kan Tanabe

IPC分类号： G03G5047

CPC分类号： G03G5/0683 ,  G03G5/047 ,  G03G5/0679 ,  G03G5/0681 ,  G03G5/0696

摘要： An electrophotographic photosensitive member comprising a support and a photosensitive layer provided on the support. The photosensitive layer contains a disazo pigment represented by the following Formula (1) or (2) and a hydroxygallium phthalocyanine; wherein A1 and A2 may be the same or different and each represent a coupler residual group having a phenolic hydroxyl group; wherein A3 and A4 may be the same or different and each represent a coupler residual group having a phenolic hydroxyl group.

摘要翻译： 一种电子照相感光构件，包括支撑体和设置在支撑体上的感光层。 感光层含有由下式（1）或（2）表示的双偶氮颜料和羟基镓酞菁，其中A1和A2可以相同或不同，表示具有酚羟基的成色剂残基，其中A3和 A4可以相同或不同，并且各自表示具有酚羟基的成色剂残基。

公开(公告)号：US06913862B2

公开(公告)日：2005-07-05

申请号：US10321643

申请日：2002-12-18

申请人： Kouichi Nakata ,  Yosuke Morikawa ,  Tatsuya Ikezue ,  Kimihiro Yoshimura ,  Daisuke Tanaka

发明人： Kouichi Nakata ,  Yosuke Morikawa ,  Tatsuya Ikezue ,  Kimihiro Yoshimura ,  Daisuke Tanaka

IPC分类号： G03G5/047 ,  C08G8/10 ,  C08G8/12 ,  C08G8/28 ,  C08G14/06 ,  C08L61/06 ,  C08L61/14 ,  G03G5/06 ,  G03G15/02

CPC分类号： G03G5/0614 ,  C08G8/10 ,  C08G8/12 ,  C08G8/28 ,  C08G14/06 ,  C08L61/06 ,  C08L61/14 ,  G03G5/0618

摘要： A phenolic compound having a plurality of substituted hydroxyphenyl groups and charge-transportable structure, the substituted hydroxyphenyl groups of which have a hydroxymethyl group; and a resol resin obtained by allowing a phenolic compound having hydroxyphenyl groups and charge-transportable structure, to react with formaldehyde in the presence of a basic catalyst, and having charge-transportable structure. Also disclosed are a cured product and an electrophotographic photosensitive member which make use of the above, and a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member.

摘要翻译： 具有多个取代羟基苯基和电荷传输结构的酚类化合物，其取代羟基苯基具有羟甲基; 和通过使具有羟基苯基的酚类化合物和电荷输送性结构得到的甲阶酚醛树脂在碱性催化剂的存在下与甲醛反应，并具有电荷输送性结构。 还公开了使用上述的固化产物和电子照相感光构件，以及具有电子照相感光构件的处理盒和电子照相设备。

公开(公告)号：US06555279B2

公开(公告)日：2003-04-29

申请号：US09885052

申请日：2001-06-21

申请人： Kouichi Nakata ,  Yosuke Morikawa ,  Kimihiro Yoshimura ,  Hiroshi Saito

发明人： Kouichi Nakata ,  Yosuke Morikawa ,  Kimihiro Yoshimura ,  Hiroshi Saito

IPC分类号： G03G514

CPC分类号： G03G5/0614 ,  G03G5/14708 ,  G03G5/1476

摘要： An electrophotographic photosensitive member exhibiting a good durability and stable electrophotographic performances regardless of environmental change is provided by coating the photosensitive layer with a specific protective layer. The protective layer comprises a cured phenolic resin and a charge-transporting compound having at least one group selected from the group consisting of hydroxyalkyl groups, hydroxyalkoxy groups and hydroxyphenyl groups capable of having a substituent.

公开(公告)号：US06998210B2

公开(公告)日：2006-02-14

申请号：US10714948

申请日：2003-11-18

申请人： Kimihiro Yoshimura ,  Yosuke Morikawa ,  Tatsuya Ikezue ,  Kouichi Nakata ,  Daisuke Tanaka

发明人： Kimihiro Yoshimura ,  Yosuke Morikawa ,  Tatsuya Ikezue ,  Kouichi Nakata ,  Daisuke Tanaka

IPC分类号： G03G5/147

CPC分类号： G03G5/1476

摘要： The present invention relates to an electrophotographic photosensitive member comprising a surface layer excellent in adhesiveness and abrasion resistance, having a hardness and a toughness, and not degrading the charge transport property. One aspect of the present invention provides an electrophotographic photosensitive member comprising a photosensitive layer on a conductive support, wherein a surface layer of the photosensitive member contains a crosslinked epoxy-modified resol type phenolic resin, and at least one of a charge transport material and a conductive fine particle.

摘要翻译： 本发明涉及一种电子照相感光构件，其包括粘合性和耐磨性优异的表面层，具有硬度和韧性，并且不降低电荷传输性能。 本发明的一个方面提供一种电子照相感光构件，其在导电性载体上包含感光层，其中感光构件的表面层含有交联的环氧改性甲阶酚醛树脂型酚醛树脂，并且电荷输送材料和 导电细粒。

公开(公告)号：US07078140B2

公开(公告)日：2006-07-18

申请号：US10618628

申请日：2003-07-15

申请人： Kimihiro Yoshimura ,  Yosuke Morikawa ,  Tatsuya Ikezue ,  Kouichi Nakata ,  Shuji Ishii ,  Daisuke Tanaka

发明人： Kimihiro Yoshimura ,  Yosuke Morikawa ,  Tatsuya Ikezue ,  Kouichi Nakata ,  Shuji Ishii ,  Daisuke Tanaka

IPC分类号： G03G5/047

CPC分类号： G03G5/0542 ,  G03G5/0535 ,  G03G5/0539 ,  G03G5/0567 ,  G03G5/0596 ,  G03G5/14717 ,  G03G5/14747 ,  G03G5/14795

摘要： According to the present invention, there is provided: an electrophotographic photosensitive member having a photosensitive layer on a support in which a surface layer of the electrophotographic photosensitive member comprises an acrylic polymer having a polyfluoroolefin unit and an alkylene oxide unit, and having a number-average molecular weight in a range of 2,000 to 20,000; a process cartridge and an electrophotographic apparatus both comprising the electrophotographic photosensitive member.

摘要翻译： 根据本发明，提供了一种电子照相感光构件，其在载体上具有感光层，其中电子照相感光构件的表面层包含具有聚氟烯烃单元和烯化氧单元的丙烯酸类聚合物， 平均分子量在2,000至20,000的范围内; 一个处理盒和一个电子照相设备，它们都包括电子照相感光构件。

公开(公告)号：US06815135B2

公开(公告)日：2004-11-09

申请号：US10321454

申请日：2002-12-18

申请人： Yosuke Morikawa ,  Tatsuya Ikezue ,  Kouichi Nakata ,  Kimihiro Yoshimura ,  Daisuke Tanaka

发明人： Yosuke Morikawa ,  Tatsuya Ikezue ,  Kouichi Nakata ,  Kimihiro Yoshimura ,  Daisuke Tanaka

IPC分类号： G03G514

CPC分类号： G03G5/14 ,  G03G5/043 ,  G03G5/047 ,  G03G5/147

摘要： In an electrophotographic photosensitive member comprising a conductive support, and provided thereon a charge generation layer, a charge transport layer and a protective layer in this order, the layer thickness a0 (&mgr;m) of the charge transport layer at the middle portion of the conductive support in its generatrix direction, the layer thickness b0 (&mgr;m) of the protective layer at the middle portion of the conductive support in its generatrix direction, the layer thickness a (&mgr;m) of the charge transport layer at a portion other than the middle portion and the layer thickness b (&mgr;m) of the protective layer at the portion other than the middle portion satisfy the following expression (1) in a region satisfying 0.8 (&mgr;m)≦(a0−a)≦3.0 (&mgr;m): b0×(a/a0)3≦b(&mgr;m)≦b0×(a/a0)1/4  (1). Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.

摘要翻译： 在包含导电性支持体的电子照相感光体中，依次设置有电荷产生层，电荷传输层和保护层，导电性载体的中间部分的电荷输送层的层厚a0（mum） 在其母线方向上，导电支撑件的母线方向中间部分处的保护层的层厚度b0（母体），电介质层在中间部分以外的部分的层厚度a（母体）和 =（A0-a）<= 3.0（MUM）的区域中的保护层在中间部分以外的层厚b（mum）满足下式（1）：还公开了 是具有这种电子照相感光构件的处理盒和电子照相设备。

公开(公告)号：US5837412A

公开(公告)日：1998-11-17

申请号：US908377

申请日：1997-08-07

申请人： Koichi Suzuki ,  Toshihiro Kikuchi ,  Kazushige Nakamura ,  Tetsuro Kanemaru ,  Kouichi Nakata

发明人： Koichi Suzuki ,  Toshihiro Kikuchi ,  Kazushige Nakamura ,  Tetsuro Kanemaru ,  Kouichi Nakata

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G5/047

CPC分类号： G03G5/0614 ,  G03G5/0517

摘要： An electrophotographic photosensitive member has a support and a photosensitive layer provided thereon. The photosensitive layer contains a hindered phenol compound and a fluorene compound represented by the following formula (1): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently substituted or unsubstituted aryl, and R.sub.5 and R.sub.6 are each independently hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl.

摘要翻译： 电子照相感光构件具有支撑件和设置在其上的感光层。 感光层含有受阻酚化合物和由下式（1）表示的芴化合物：其中R 1，R 2，R 3和R 4各自独立地为取代或未取代的芳基，R 5和R 6各自独立地为 氢，取代或未取代的烷基，取代或未取代的芳基或取代或未取代的芳烷基。