公开(公告)号：US20080050664A1

公开(公告)日：2008-02-28

申请号：US11572698

申请日：2005-09-05

申请人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

发明人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

IPC分类号： G03G15/02

CPC分类号： G03G5/056 ,  G03G5/14752

摘要： An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member.

摘要翻译： 本发明的目的是提供一种具有高耐久性并且几乎不引起灵敏度降低的电子照相感光构件，即使使用短波长光，特别是使用波长为380-450nm的光作为曝光光，以及处理盒和电子照相 具有电子照相感光构件的装置。 本发明包括电子照相感光构件，其包括支撑体和感光层，其设置在支撑体上并且包含电荷产生材料和电荷传输材料，其特征在于，电子照相感光构件的表面层含有脂族二羧酸聚酯 具有特定重复结构单元的重均分子量为80,000以上的树脂，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：US20090324282A1

公开(公告)日：2009-12-31

申请号：US12555487

申请日：2009-09-08

申请人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

发明人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

IPC分类号： G03G21/16 ,  G03G5/047

CPC分类号： G03G5/056 ,  G03G5/14752

摘要： An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member.

摘要翻译： 本发明的目的是提供一种具有高耐久性并且几乎不引起灵敏度降低的电子照相感光构件，即使使用短波长光，特别是使用波长为380-450nm的光作为曝光光，以及处理盒和电子照相 具有电子照相感光构件的装置。 本发明包括电子照相感光构件，其包括支撑体和感光层，其设置在支撑体上并且包含电荷产生材料和电荷传输材料，其特征在于，电子照相感光构件的表面层含有脂族二羧酸聚酯 具有特定重复结构单元的重均分子量为80,000以上的树脂，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：US07927774B2

公开(公告)日：2011-04-19

申请号：US12555487

申请日：2009-09-08

申请人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

发明人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

IPC分类号： G03G5/00

CPC分类号： G03G5/056 ,  G03G5/14752

摘要： An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member.

摘要翻译： 本发明的目的是提供一种具有高耐久性并且几乎不引起灵敏度降低的电子照相感光构件，即使使用短波长光，特别是使用波长为380-450nm的光作为曝光光，以及处理盒和电子照相 具有电子照相感光构件的装置。 本发明包括电子照相感光构件，其包括支撑体和感光层，其设置在支撑体上并且包含电荷产生材料和电荷传输材料，其特征在于，电子照相感光构件的表面层含有脂肪族二羧酸聚酯 具有特定重复结构单元的重均分子量为80,000以上的树脂，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：US07585604B2

公开(公告)日：2009-09-08

申请号：US11572698

申请日：2005-09-05

申请人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

发明人： Harunobu Ogaki ,  Takakazu Tanaka ,  Kenichi Kaku ,  Akira Yoshida

IPC分类号： G03G15/02

CPC分类号： G03G5/056 ,  G03G5/14752

摘要： An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member.

摘要翻译： 本发明的目的是提供一种具有高耐久性并且几乎不引起灵敏度降低的电子照相感光构件，即使使用短波长光，特别是使用波长为380-450nm的光作为曝光光，以及处理盒和电子照相 具有电子照相感光构件的装置。 本发明包括电子照相感光构件，其包括支撑体和感光层，其设置在支撑体上并且包含电荷产生材料和电荷传输材料，其特征在于，电子照相感光构件的表面层含有脂族二羧酸聚酯 具有特定重复结构单元的重均分子量为80,000以上的树脂，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：US20050208402A1

公开(公告)日：2005-09-22

申请号：US11129412

申请日：2005-05-16

申请人： Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka ,  Harunobu Ogaki ,  Kenichi Kaku

发明人： Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka ,  Harunobu Ogaki ,  Kenichi Kaku

IPC分类号： C07C211/54 ,  C07C217/92 ,  C07C323/37 ,  C07D307/91 ,  C07D333/76 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07

CPC分类号： G03G5/075 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0629 ,  G03G5/071 ,  G03G5/076

摘要： An electrophotographic photosensitive member is provided having a support and a photosensitive layer provided on the support and containing at least one kind of charge-transporting material which has a specific structure with a molecular weight of from 1,500 to 4,000, and is held in a proportion of from 90% by weight to 100% by weight based on the total weight of the charge-transporting material.

摘要翻译： 提供一种电子照相感光构件，其具有支撑体和设置在支撑体上的感光层，并且含有至少一种具有分子量为1,500至4000的特定结构的电荷输送材料，并且以比例 基于电荷输送材料的总重量，从90重量％至100重量％。

公开(公告)号：US07045261B2

公开(公告)日：2006-05-16

申请号：US10647274

申请日：2003-08-26

申请人： Takakazu Tanaka ,  Itaru Takaya ,  Harunobu Ogaki ,  Kenichi Kaku

发明人： Takakazu Tanaka ,  Itaru Takaya ,  Harunobu Ogaki ,  Kenichi Kaku

IPC分类号： G03G5/05

CPC分类号： G03G5/0575 ,  G03G5/0557 ,  G03G5/075 ,  G03G5/076 ,  G03G5/14747 ,  G03G5/14795

摘要： In an electrophotographic photosensitive member having a support, and provided thereon a photosensitive layer, a surface layer of the electrophotographic photosensitive member contains a high-molecular-weight charge-transporting material having a weight-average molecular weight Mw of from 1,000 or more to 9,000 or less, and the ratio of the weight-average molecular weight Mw of the high-molecular-weight charge-transporting material to a number-average molecular weight Mn of the high-molecular-weight charge-transporting material, Mw/Mn, is from more than 1.00 to 1.10 or less. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.

摘要翻译： 在具有支撑体并且在其上设置有感光层的电子照相感光构件中，电子照相感光构件的表面层含有重均分子量Mw为1,000以上至9000以下的高分子量电荷输送材料 高分子量电荷输送材料的重均分子量Mw与高分子量电荷输送材料的数均分子量Mn的比值Mw / Mn为 从1.00以上到1.10以下。 还公开了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：US06994941B2

公开(公告)日：2006-02-07

申请号：US10649679

申请日：2003-08-28

申请人： Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka ,  Harunobu Ogaki ,  Kenichi Kaku

发明人： Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka ,  Harunobu Ogaki ,  Kenichi Kaku

IPC分类号： G03G5/06

CPC分类号： G03G5/075 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0629 ,  G03G5/071 ,  G03G5/076

摘要： An electrophotographic photosensitive member is provided having a support and a photosensitive layer provided on the support and containing at least one kind of charge-transporting material which has a specific structure with a molecular weight of from 1,500 to 4,000, and is held in a proportion of from 90% by weight to 100% by weight based on the total weight of the charge-transporting material.

摘要翻译： 提供一种电子照相感光构件，其具有支撑体和设置在支撑体上的感光层，并且含有至少一种具有分子量为1,500至4000的特定结构的电荷输送材料，并且以比例 基于电荷输送材料的总重量，从90重量％至100重量％。

公开(公告)号：US20050100805A1

公开(公告)日：2005-05-12

申请号：US10649679

申请日：2003-08-28

申请人： Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka ,  Harunobu Ogaki ,  Kenichi Kaku

发明人： Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka ,  Harunobu Ogaki ,  Kenichi Kaku

IPC分类号： C07C211/54 ,  C07C217/92 ,  C07C323/37 ,  C07D307/91 ,  C07D333/76 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07

CPC分类号： G03G5/075 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0614 ,  G03G5/0629 ,  G03G5/071 ,  G03G5/076

摘要： An electrophotographic photosensitive member is provided having a support and a photosensitive layer provided on the support and containing at least one kind of charge-transporting material which has a specific structure with a molecular weight of from 1,500 to 4,000, and is held in a proportion of from 90% by weight to 100% by weight based on the total weight of the charge-transporting material.

公开(公告)号：US07001699B2

公开(公告)日：2006-02-21

申请号：US10647205

申请日：2003-08-26

申请人： Takakazu Tanaka ,  Akira Yoshida ,  Hidetoshi Hirano ,  Yuka Ishiduka ,  Harunobu Ogaki

发明人： Takakazu Tanaka ,  Akira Yoshida ,  Hidetoshi Hirano ,  Yuka Ishiduka ,  Harunobu Ogaki

IPC分类号： G03G5/047

CPC分类号： G03G5/0614 ,  G03G5/0571 ,  G03G5/0575 ,  G03G5/075 ,  G03G5/076

摘要： In an electrophotographic photosensitive member having a support, and provided thereon a photosensitive layer, a surface layer of the electrophotographic photosensitive member contains an electrically insulating binder resin and a random-copolymer type high-molecular-weight charge-transporting material having two kinds of specific repeating structural units. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.

摘要翻译： 在具有支撑体并且设置在其上的感光层的电子照相感光构件中，电子照相感光构件的表面层含有电绝缘性粘合剂树脂和无规共聚型高分子量电荷输送材料，其具有两种特定的 重复结构单元。 还公开了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：US06991881B2

公开(公告)日：2006-01-31

申请号：US10422733

申请日：2003-04-25

申请人： Harunobu Ogaki ,  Akira Yoshida ,  Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka

发明人： Harunobu Ogaki ,  Akira Yoshida ,  Takakazu Tanaka ,  Itaru Takaya ,  Yuka Ishiduka

IPC分类号： G03G5/05

CPC分类号： C08J7/047 ,  C08J2479/00 ,  G03G5/075 ,  G03G5/076

摘要： The present invention relates to an electrophotographic photosensitive member having a support and provided thereon a photosensitive layer. The photosensitive layer contains a high-molecular weight charge-transporting material having a specific repeating structural unit. The high-molecular weight charge-transporting material has a weight-average molecular weight Mw of 1,500 or more and an energy level of highest occupied molecular orbital, EHOMO, of from −8.3 eV or more to −8.0 eV or less as found by semiempirical molecular-orbital calculation. The present invention also relates to a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.

摘要翻译： 本发明涉及一种具有支撑体并设置在其上的感光层的电子照相感光构件。 感光层含有具有特定重复结构单元的高分子量电荷输送材料。 高分子量电荷输送材料的重均分子量Mw为1500以上，能量水平为最高占据分子轨道E HOMO，为-8.3eV以上， 8.0eV以下，通过半经验分子轨道计算发现。 本发明还涉及具有这种电子照相感光构件的处理盒和电子照相设备。