公开(公告)号：US09766562B2

公开(公告)日：2017-09-19

申请号：US15144199

申请日：2016-05-02

申请人： Toshihiro Ishida ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Daisuke Nii

发明人： Toshihiro Ishida ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Daisuke Nii

IPC分类号： G03G5/147 ,  G03G5/14 ,  G03G21/18

CPC分类号： G03G5/144 ,  G03G5/142 ,  G03G5/1476 ,  G03G5/14765 ,  G03G21/18

摘要： A photoconductor including: a conductive support; an undercoat layer; and a photoconductive layer, the undercoat layer being disposed over the conductive support, the photoconductive layer being disposed over the undercoat layer, wherein the undercoat layer includes zinc oxide particles, wherein when a film thickness of the undercoat layer is 20 μm, the undercoat layer has transmittance of 50% or more to light having a wavelength in a range of 500 nm or more but 800 nm or less, wherein a lowest transmittance of light is 85% or less in the range, and wherein when an electric field of 5 V/μm is applied to the undercoat layer, volume resistivity of the undercoat layer is 1.0×107 Ω·cm or more but 5.0×108 Ω·cm or less at an environment of 23° C. and 55% RH.

公开(公告)号：US09291924B2

公开(公告)日：2016-03-22

申请号：US14558061

申请日：2014-12-02

申请人： Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Daisuke Nii ,  Toshihiro Ishida

发明人： Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Daisuke Nii ,  Toshihiro Ishida

IPC分类号： G03G5/14

CPC分类号： G03G5/144 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/142 ,  G03G5/14708 ,  G03G5/14791

摘要： A photoconductor is provided. The photoconductor includes an electroconductive substrate; an intermediate layer located overlying the electroconductive substrate; and a photosensitive layer located overlying the intermediate layer. The intermediate layer includes at least a resin, and a particulate zinc oxide that includes sodium, sulfur and calcium in amounts of from 10 ppm to 200 ppm, from 50 ppm to 500 ppm, and from 10 ppm to 200 ppm, respectively.

摘要翻译： 提供光电导体。 光电导体包括导电基片; 位于导电基底上方的中间层; 以及位于中间层上方的感光层。 中间层至少包含一种树脂和包含钠，硫和钙的颗粒状氧化锌，其含量分别为10ppm至200ppm，50ppm至500ppm，10ppm至200ppm。

公开(公告)号：US10209639B2

公开(公告)日：2019-02-19

申请号：US15484715

申请日：2017-04-11

申请人： Tomoharu Asano ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Daisuke Nii ,  Toshihiro Ishida

发明人： Tomoharu Asano ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Daisuke Nii ,  Toshihiro Ishida

IPC分类号： G03G5/14 ,  G03G5/06 ,  G03G5/047 ,  G03G15/00 ,  G03G5/05

摘要： A photoconductor including a conductive support, an undercoat layer, a charge-generating layer, and a charge-transporting layer, at least the undercoat layer, the charge-generating layer, and the charge-transporting layer being disposed on the conductive support in an order mentioned, wherein the undercoat layer includes a binder resin and metal oxide particles, and the charge-generating layer includes a binder resin, a titanyl phthalocyanine pigment, and a salicylic acid derivative.

公开(公告)号：US10191398B2

公开(公告)日：2019-01-29

申请号：US15601220

申请日：2017-05-22

申请人： Toshihiro Ishida ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Tomoharu Asano ,  Daisuke Nii

发明人： Toshihiro Ishida ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Tomoharu Asano ,  Daisuke Nii

IPC分类号： G03G5/14 ,  G03G15/00

摘要： An electrophotographic photoconductor including a support, an undercoat layer, and a photoconductive layer, the undercoat layer and the photoconductive layer being disposed on the support in an order mentioned, wherein the undercoat layer includes zinc oxide particles, a urethane bond-containing resin, and methylethyl ketone oxime, and the undercoat layer satisfies a formula below: 10

公开(公告)号：US09671706B2

公开(公告)日：2017-06-06

申请号：US14669115

申请日：2015-03-26

申请人： Daisuke Nii ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Toshihiro Ishida

发明人： Daisuke Nii ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Toshihiro Ishida

IPC分类号： G03G5/14

CPC分类号： G03G5/144 ,  G03G5/142

摘要： An electrophotographic photoconductor including a support, an undercoat layer overlying the support, and a photosensitive layer overlying the undercoat layer is provided. The undercoat layer includes zinc oxide particles and a binder resin. The undercoat layer has a voltage (V)-current (I) characteristics such that, when S1 is a value obtained by integrating current (I [A]) in terms of voltage (V [V]) from 0 to a distribution voltage VUL [V] distributed to the undercoat layer, and S2 is a value obtained by integrating a line connecting two points at a voltage (V [V]) of 0 and the distribution voltage VUL [V] in terms of voltage (V [V]) from 0 to the distribution voltage VUL [V], S1 is within a range of from 1.0×10−4 to 1.0×10−2 and a ratio (S1/S2) of S1 to S2 is 0.50 or less.

公开(公告)号：US09846377B2

公开(公告)日：2017-12-19

申请号：US15331313

申请日：2016-10-21

申请人： Tomoharu Asano ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Daisuke Nii ,  Toshihiro Ishida

发明人： Tomoharu Asano ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Daisuke Nii ,  Toshihiro Ishida

IPC分类号： G03G5/00 ,  G03G5/047 ,  G03G5/14

CPC分类号： G03G5/047 ,  G03G5/0675 ,  G03G5/142 ,  G03G5/144

摘要： A photoconductor includes an electroconductive substrate; an undercoat layer overlying the electroconductive substrate; and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a urethane resin, a metal oxide particle and a compound having the following formula (1): wherein R1 to R8 independently represent a hydrogen atom, a nitro group, a cyano group, a halogen atom, a hydroxyl group, a saturated or an unsaturated aliphatic hydrocarbon group optionally having a substituent, an aromatic hydrocarbon group optionally having a substituent, an alkoxy group optionally having a substituent, an aryloxy group optionally having a substituent, a sulfo group optionally having a substituent, an amino group, a dialkylamino group optionally having a substituent or an diarylamino group optionally having a substituent; and R3 and R4, R4 and R5, R6 and R7, and R7 and R8 may be bonded with each other to form an aromatic ring.

公开(公告)号：US09599916B2

公开(公告)日：2017-03-21

申请号：US14933413

申请日：2015-11-05

申请人： Tomoharu Asano ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Daisuke Nii ,  Toshihiro Ishida

发明人： Tomoharu Asano ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Daisuke Nii ,  Toshihiro Ishida

IPC分类号： G03G5/14 ,  G03G5/043

CPC分类号： G03G5/144 ,  G03G5/043 ,  G03G5/142

摘要： An electrophotographic photoreceptor includes a substrate, an undercoat layer overlying the substrate, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a binder resin, a metal oxide particle and a compound having a thiol group.

公开(公告)号：US20170343910A1

公开(公告)日：2017-11-30

申请号：US15601220

申请日：2017-05-22

申请人： Toshihiro ISHIDA ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Tomoharu Asano ,  Daisuke Nii

发明人： Toshihiro ISHIDA ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Tomoharu Asano ,  Daisuke Nii

IPC分类号： G03G5/14 ,  G03G15/00

CPC分类号： G03G5/144 ,  G03G15/75

摘要： An electrophotographic photoconductor including a support, an undercoat layer, and a photoconductive layer, the undercoat layer and the photoconductive layer being disposed on the support in an order mentioned, wherein the undercoat layer includes zinc oxide particles, a urethane bond-containing resin, and methylethyl ketone oxime, and the undercoat layer satisfies a formula below: 10

公开(公告)号：US20170307988A1

公开(公告)日：2017-10-26

申请号：US15484715

申请日：2017-04-11

申请人： Tomoharu ASANO ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Daisuke Nii ,  Toshihiro Ishida

发明人： Tomoharu ASANO ,  Tetsuro Suzuki ,  Eiji Kurimoto ,  Daisuke Nii ,  Toshihiro Ishida

IPC分类号： G03G5/047 ,  G03G5/14 ,  G03G5/10 ,  G03G5/06 ,  G03G5/05 ,  G03G15/00

CPC分类号： G03G5/144 ,  G03G5/047 ,  G03G5/0517 ,  G03G5/0612 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/142 ,  G03G15/75

摘要： A photoconductor including a conductive support, an undercoat layer, a charge-generating layer, and a charge-transporting layer, at least the undercoat layer, the charge-generating layer, and the charge-transporting layer being disposed on the conductive support in an order mentioned, wherein the undercoat layer includes a binder resin and metal oxide particles, and the charge-generating layer includes a binder resin, a titanyl phthalocyanine pigment, and a salicylic acid derivative.

公开(公告)号：US09678446B2

公开(公告)日：2017-06-13

申请号：US14945498

申请日：2015-11-19

申请人： Toshihiro Ishida ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Daisuke Nii

发明人： Toshihiro Ishida ,  Eiji Kurimoto ,  Tetsuro Suzuki ,  Tomoharu Asano ,  Daisuke Nii

IPC分类号： G03G5/00 ,  G03G5/14

CPC分类号： G03G5/144

摘要： A electrophotographic photoconductor is provided. The electrophotographic photoconductor includes a conductive support, an undercoat layer overlying the conductive support, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a metal oxide particle, binder resin, and a compound having a urea group.