公开(公告)号：US20100330475A1

公开(公告)日：2010-12-30

申请号：US12823865

申请日：2010-06-25

申请人： Nozomu TAMOTO ,  Mitsuaki Hirose ,  Akio Kosuge ,  Makoto Yasuda

发明人： Nozomu TAMOTO ,  Mitsuaki Hirose ,  Akio Kosuge ,  Makoto Yasuda

IPC分类号： G03G15/00 ,  G03G21/00 ,  G03G21/16

CPC分类号： G03G5/14791 ,  G03G5/0614 ,  G03G5/071 ,  G03G5/147 ,  G03G5/14704 ,  G03G15/751

摘要： An image forming apparatus including an image bearing member having an electroconductive substrate on which are provided at least a photosensitive layer and a protection layer, in that sequence, a charging device that charges the surface of the image bearing member to form a latent electrostatic image thereon, a development device that develops the latent electrostatic image with a development agent containing toner to obtain a developed toner image, a cleaning device that removes toner remaining on the surface of the image bearing member and a lubricant material applicator that applies a lubricant material to the surface of the image bearing member, the protection layer containing a cured resin and a filler and the surface form of the protection layer having an arithmetical mean waviness Wa of from 0.05 to 0.3 μm and an average length WSm of profile elements of from 0.5 to 1.5 mm, which are obtained from a waviness profile obtained by filtering a coarse component with a λc profile filter of 0.25 mm and filtering a wavelength component longer than a waviness with a λf profile filter of 2.5 mm.

摘要翻译： 一种图像形成装置，包括具有导电基板的图像承载部件，至少设有感光层和保护层，依次具有对图像承载部件的表面充电以在其上形成静电潜像的充电装置， 显影装置，其用含有调色剂的显影剂显影静电潜像，以获得显影的调色剂图像;清除装置，其去除残留在图像承载部件的表面上的调色剂;以及润滑剂涂料器，其将润滑剂材料施加到 图像承载部件的表面，保护层含有固化树脂和填料，保护层的表面形状具有0.05至0.3μm的算术平均波纹度Wa和0.5-1.5的轮廓元素的平均长度WSm mm，其从通过用λc轮廓f过滤粗分量获得的波纹曲线获得 0.25mm的滤波器，并且用2.5mm的λf轮廓滤波器滤波长于波纹的波长分量。

公开(公告)号：US20080318142A1

公开(公告)日：2008-12-25

申请号：US12128061

申请日：2008-05-28

申请人： Yoshiaki KAWASAKI ,  Akihiro Sugino ,  Mitsuaki Hirose

发明人： Yoshiaki KAWASAKI ,  Akihiro Sugino ,  Mitsuaki Hirose

IPC分类号： G03G13/14 ,  G03C1/73 ,  G03G15/08

CPC分类号： G03G5/1476 ,  G03G5/0567 ,  G03G5/0575 ,  G03G5/0592 ,  G03G5/14769 ,  G03G5/14791 ,  G03G15/751 ,  G03G2215/00957

摘要： A photoreceptor including an electroconductive substrate; a photosensitive layer, which is located overlying the electroconductive substrate and which includes a charge generation material, a charge transport material having no radical polymerizability, a binder resin having no radical polymerizability, and a crosslinked polymer including a unit obtained from a first radically polymerizable monomer having three or more functional groups and no charge transport structure and a unit obtained from a second radically polymerizable monomer having a charge transport structure; and an outermost layer, which is located on the photosensitive layer and which includes a crosslinked polymer including a unit obtained from a third radically polymerizable monomer having three or more functional groups and no charge transport structure and a unit obtained from a fourth radically polymerizable monomer having a charge transport structure. An image forming method and apparatus, and a process cartridge using the photoreceptor.

摘要翻译： 包含导电基片的感光体; 位于导电性基体上的感光层，其包含电荷产生材料，不具有自由基聚合性的电荷输送材料，不具有自由基聚合性的粘合剂树脂，以及包含由第一自由基聚合性单体获得的单元的交联聚合物 具有三个或更多个官能团并且不具有电荷传输结构，以及由具有电荷传输结构的第二自由基聚合单体获得的单元; 和最外层，其位于感光层上，并且包括交联聚合物，其包含由具有三个或更多个官能团并且没有电荷传输结构的第三自由基聚合单体获得的单元和由第四自由基聚合单体获得的单元，所述第四自由基聚合单体具有 电荷输送结构。 图像形成方法和装置，以及使用感光体的处理盒。

公开(公告)号：US20080124638A1

公开(公告)日：2008-05-29

申请号：US11939239

申请日：2007-11-13

申请人： Mitsuaki HIROSE ,  Yoshiaki Kawasaki

发明人： Mitsuaki HIROSE ,  Yoshiaki Kawasaki

IPC分类号： G03G15/02 ,  G03G13/04 ,  G03G15/04 ,  G03G5/00

CPC分类号： G03G5/0592 ,  G03G5/0525 ,  G03G5/0546 ,  G03G5/0614 ,  G03G5/0616 ,  G03G5/0629 ,  G03G5/0637 ,  G03G5/071 ,  G03G5/073 ,  G03G5/14734 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795

摘要： A method of preparing an electrophotographic photoreceptor, including forming a photosensitive layer on an electroconductive substrate; and forming a surface layer on the photosensitive layer, wherein the surface layer is formed by a spray coating comprising a spray droplet having an average diameter (D50) not greater than 10 μm.

摘要翻译： 一种制备电子照相感光体的方法，包括在导电基材上形成感光层; 以及在所述感光层上形成表面层，其中所述表面层通过包括平均直径（D≤50）不大于10um的喷雾液滴的喷涂形成。

公开(公告)号：US20230280670A1

公开(公告)日：2023-09-07

申请号：US18175757

申请日：2023-02-28

申请人： Tsukiko TAKAHASHI ,  Mitsuaki Hirose ,  Yohichi Kitagawa ,  Suzuka Karato ,  Hiroshi Yamada

发明人： Tsukiko TAKAHASHI ,  Mitsuaki Hirose ,  Yohichi Kitagawa ,  Suzuka Karato ,  Hiroshi Yamada

IPC分类号： G03G9/097 ,  G03G15/08 ,  G03G9/08 ,  C08G63/16 ,  G03G9/087

CPC分类号： G03G9/09716 ,  G03G15/0865 ,  G03G9/0825 ,  G03G9/09725 ,  C08G63/16 ,  G03G9/08755 ,  G03G9/09708

摘要： [Summary] An object of the present invention is to provide a toner that has both low-temperature fixability and heat-resistant storage stability, suppresses contamination of cleaning parts and photoconductors, and has excellent charging stability.
[Tasks] A toner includes toner based particles containing a binder resin, a colorant, and a wax; and fine resin particles and an inorganic external additive that are present on a surface of the toner based particles, wherein a coverage of the fine resin particles is in a range from 30% to 70%, and wherein the inorganic external additive covers a surface of oxide of a metal element with hydroxide of a metal element.

公开(公告)号：US20230161276A1

公开(公告)日：2023-05-25

申请号：US17991846

申请日：2022-11-22

申请人： Mitsuaki HIROSE ,  Daisuke INOUE ,  Yohichi KITAGAWA ,  Tsukiko TAKAHASHI ,  Kenji KOMITO ,  Akihiko MOKI

发明人： Mitsuaki HIROSE ,  Daisuke INOUE ,  Yohichi KITAGAWA ,  Tsukiko TAKAHASHI ,  Kenji KOMITO ,  Akihiko MOKI

IPC分类号： G03G9/08 ,  G03G9/087

CPC分类号： G03G9/0821 ,  G03G9/0804 ,  G03G9/0827 ,  G03G9/08728

摘要： Provided is a toner including toner particles. Each of the toner particles includes a toner base particle including a binder resin and a release agent. The toner particles have an average circularity of 0.974 or greater and 0.985 or less. An arithmetic mean height Sa of surfaces of the toner particles is 45 nm or greater. The toner particles have a BET specific surface area of 1.3 m2/g or greater and 2.5 m2/g or less.

公开(公告)号：US20200233325A1

公开(公告)日：2020-07-23

申请号：US16742952

申请日：2020-01-15

申请人： Hideki Nakamura ,  Tadayoshi Uchida ,  Shuya Sugimoto ,  Mitsuaki Hirose ,  Noboru Toriu ,  Kaori Harada

发明人： Hideki Nakamura ,  Tadayoshi Uchida ,  Shuya Sugimoto ,  Mitsuaki Hirose ,  Noboru Toriu ,  Kaori Harada

IPC分类号： G03G5/087 ,  G03G21/18 ,  G03G5/047 ,  G03G5/05

摘要： An electrophotographic photoconductor is provided that includes a conductive substrate, an undercoat layer overlying the conductive substrate, and a photosensitive layer overlying the undercoat layer. The undercoat layer contains zinc oxide particles and a binder resin and has a volume resistivity of 0.03×106 Ω·cm or less in an electrical field of 5 V/μm at a temperature of 23 degrees C. and a relative humidity of 55%. The photosensitive layer contains a compound represented by the following general formula (1): where each of R1 to R3 independently represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms which may have a substituent, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms.

公开(公告)号：US10466604B2

公开(公告)日：2019-11-05

申请号：US16025351

申请日：2018-07-02

申请人： Tetsuya Toshine ,  Mitsuaki Hirose ,  Tomoharu Asano

发明人： Tetsuya Toshine ,  Mitsuaki Hirose ,  Tomoharu Asano

IPC分类号： G03G5/14

摘要： Provided is an electrophotographic photoconductor including: a conductive support; an undercoat layer; and a photoconductive layer, wherein the undercoat layer and the photoconductive layer are provided over the conductive support in the order of reciting, wherein the undercoat layer contains at least metal oxide particles, a binder, and a salicylic acid derivative such as 4-methylsalicylic acid, wherein the metal oxide particles have a volume resistivity of 1×105 Ω·cm or higher but 1×108 Ω·cm or lower, wherein the undercoat layer has a volume resistivity of 0.001×106 Ω·cm or higher but 0.02×106 Ω·cm or lower, and wherein the undercoat layer has a thickness of 2 micrometers or greater but 20 micrometers or less.

公开(公告)号：US08507163B2

公开(公告)日：2013-08-13

申请号：US12635937

申请日：2009-12-11

申请人： Nozomu Tamoto ,  Hideo Nakamori ,  Mitsuaki Hirose

发明人： Nozomu Tamoto ,  Hideo Nakamori ,  Mitsuaki Hirose

IPC分类号： G03G5/00

CPC分类号： G03G5/14704 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/1473 ,  G03G5/14734 ,  G03G5/14739 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795 ,  G03G2215/00957

摘要： A method of manufacturing an image bearing member including forming a charge generation layer overlying an electroconductive substrate, forming a charge transport layer overlying the charge generation layer, the charge transport layer including a charge transport material having a molecular weight of from 600 to 900 and a binder resin, and forming a protection layer overlying the charge transport layer by applying a liquid application containing a polymerizable compound having a charge transport structure, a polymerizable compound having no charge transport structure, a filler, a polycarboxylic acid compound, and cyclopentanone and curing the polymerizable compound having a charge transport structure, and the polymerizable compound having no charge transport structure.

摘要翻译： 一种制造图像承载部件的方法，包括形成覆盖导电性基体的电荷产生层，形成覆盖电荷产生层的电荷输送层，电荷输送层包含分子量为600〜900的电荷输送材料和 粘合剂树脂，并且通过施加包含具有电荷输送结构的可聚合化合物的液体应用，不含电荷输送结构的可聚合化合物，填料，多元羧酸化合物和环戊酮，形成覆盖电荷输送层的保护层，并固化 具有电荷输送结构的聚合性化合物和不具有电荷输送结构的聚合性化合物。

公开(公告)号：US20120321348A1

公开(公告)日：2012-12-20

申请号：US13524617

申请日：2012-06-15

申请人： Noboru Toriu ,  Daisuke Kubo ,  Hideo Nakamori ,  Mitsuaki Hirose

发明人： Noboru Toriu ,  Daisuke Kubo ,  Hideo Nakamori ,  Mitsuaki Hirose

IPC分类号： G03G15/00

CPC分类号： G03G15/751

摘要： An image bearing drum having a hollow cylinder sleeve member; a photosensitive layer; a protective layer having fillers; and flange members, each of which has an attachment unit, a shaft hole unit, and a linking unit, wherein the surface of the protective layer having waviness has an arithmetical mean deviation of an assessed profile Wa (μm) of from 0.050 μm to 0.400 μm and a mean width of profile elements WSm (mm) of from 0.500 mm to 1.500 mm, and wherein the linking unit has at least one shock-absorbing hole located on a virtual line segment drawn to the shaft hole unit from the circumference of a virtually projected circle formed by projecting the outer periphery of the attachment unit axially along the shaft onto a virtual plane that contains the linking unit and is orthogonal to the shaft direction.

摘要翻译： 一种具有中空圆筒套筒构件的图像承载滚筒; 感光层; 具有填料的保护层; 和凸缘部件，每个凸缘部件都具有连接单元，轴孔单元和连接单元，其中具有波纹的保护层的表面具有从0.050μm到0.400的评估轮廓Wa（μm）的算术平均偏差 μm，并且轮廓元件WSm（mm）的平均宽度为0.500mm至1.500mm，并且其中所述连接单元具有至少一个减震孔，所述至少一个减震孔位于从所述轴孔单元的圆周方向被拉伸到所述轴孔单元的虚拟线段上 通过将连接单元的外周沿着轴轴向突出到包含连接单元并且与轴方向正交的虚拟平面上而形成的虚拟投影圆。

公开(公告)号：US08273513B2

公开(公告)日：2012-09-25

申请号：US12823865

申请日：2010-06-25

申请人： Nozomu Tamoto ,  Mitsuaki Hirose ,  Akio Kosuge ,  Makoto Yasuda

发明人： Nozomu Tamoto ,  Mitsuaki Hirose ,  Akio Kosuge ,  Makoto Yasuda

IPC分类号： G03G5/00

CPC分类号： G03G5/14791 ,  G03G5/0614 ,  G03G5/071 ,  G03G5/147 ,  G03G5/14704 ,  G03G15/751

摘要： An image forming apparatus including an image bearing member having an electroconductive substrate on which are provided at least a photosensitive layer and a protection layer, in that sequence, a charging device that charges the surface of the image bearing member to form a latent electrostatic image thereon, a development device that develops the latent electrostatic image with a development agent containing toner to obtain a developed toner image, a cleaning device that removes toner remaining on the surface of the image bearing member and a lubricant material applicator that applies a lubricant material to the surface of the image bearing member, the protection layer containing a cured resin and a filler and the surface form of the protection layer having an arithmetical mean waviness Wa of from 0.05 to 0.3 μm and an average length WSm of profile elements of from 0.5 to 1.5 mm, which are obtained from a waviness profile obtained by filtering a coarse component with a λc profile filter of 0.25 mm and filtering a wavelength component longer than a waviness with a λf profile filter of 2.5 mm.

摘要翻译： 一种图像形成装置，包括具有导电基板的图像承载部件，至少设有感光层和保护层，依次具有对图像承载部件的表面充电以在其上形成静电潜像的充电装置， 显影装置，其用含有调色剂的显影剂显影静电潜像，以获得显影的调色剂图像;清除装置，其去除残留在图像承载部件的表面上的调色剂;以及润滑剂涂料器，其将润滑剂材料施加到 图像承载部件的表面，保护层含有固化树脂和填料，保护层的表面形状具有0.05至0.3μm的算术平均波纹度Wa和0.5-1.5的轮廓元素的平均长度WSm mm，其从通过用λc轮廓f过滤粗分量获得的波纹曲线获得 0.25mm的滤波器，并且用2.5mm的λf轮廓滤波器滤波长于波纹的波长分量。