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公开(公告)号：US20240310745A1
公开(公告)日：2024-09-19
申请号：US18454415
申请日：2023-08-23
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Takaakira SASAKI , Masaru AGATSUMA , Takayuki YAMASHITA
IPC: G03G5/05
CPC classification number: G03G5/0525
Abstract: A coating device includes: a coating liquid holding part having an upper opening portion and a lower opening portion and holding a coating liquid, in which a base material having a tubular shape penetrates the upper opening portion and the lower opening portion of the coating liquid holding part, and the coating liquid is applied to an outer peripheral surface of the base material by relatively moving the base material upward in an up-down direction; a container surrounding the coating liquid holding part and having, at an upper portion, an opening into which the base material penetrating the coating liquid holding part is inserted; and a vapor concentration holding part that holds solvent vapor concentration of a solvent contained in the coating liquid in a region determined from a liquid level of the coating liquid holding part at a value equal to or higher than a determined value until a determined range of an upper portion in an axial direction of the base material passes through the region.
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公开(公告)号：US20190094724A1
公开(公告)日：2019-03-28
申请号：US15946312
申请日：2018-04-05
Applicant: FUJI XEROX CO., LTD.
Inventor： Eri KUNISAWA
CPC classification number: G03G5/0696 , G03G5/0514 , G03G5/0525 , G03G5/0542 , G03G5/0564 , G03G5/06 , G03G5/0614 , G03G2215/00957
Abstract: An electrophotographic photoreceptor includes a conductive substrate, a charge-generating layer disposed on the conductive substrate, and a charge-transporting layer as an outermost layer disposed on the charge-generating layer and containing a binder resin and a charge-transporting material, wherein the average particle size of the crystal of the charge-transporting material is approximately from 0.1 μm to 5.0 μm.
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公开(公告)号：US10018928B2
公开(公告)日：2018-07-10
申请号：US15624866
申请日：2017-06-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takeshi Murakami , Daisuke Kawaguchi , Kazumichi Sugiyama , Daisuke Tanaka
CPC classification number: G03G5/0217 , G03G5/0214 , G03G5/0525 , G03G5/144 , G03G15/75
Abstract: Provided is an electrophotographic photosensitive member capable of suppressing a ghost image. The electrophotographic photosensitive member includes, in this order: a support; an intermediate layer containing metal oxide particles; and a photosensitive layer, in which the intermediate layer contains at least one kind of compound X selected from the group consisting of a compound represented by the formula (1) and a compound represented by the formula (2).
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公开(公告)号：US10001715B2
公开(公告)日：2018-06-19
申请号：US15110166
申请日：2015-01-16
Applicant: Namhyuk Cho
Inventor： Namhyuk Cho
CPC classification number: G03G5/0525 , G03G5/05 , G03G5/06 , G03G2215/00957
Abstract: Disclosed is a method for manufacturing an organic photosensitive drum for electrophotography, which includes a step of immersing a hollow cylinder into a liquefied photosensitive material after gripping the hollow cylinder, by using a coating device including: a transfer tray in which the hollow cylinder is inserted and loaded into at least one jig vertically provided on a plate type pallet; and a gripping assembly disposed above the transfer tray and including at least one gripping mechanism. The process of gripping the hollow cylinder includes: inserting a portion or the whole of the gripping mechanism into the hollow cylinder; aligning a lower end of the gripping mechanism with a lower end of the hollow cylinder; and gripping the hollow cylinder by using the gripping mechanism.
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公开(公告)号：US09880477B2
公开(公告)日：2018-01-30
申请号：US14869364
申请日：2015-09-29
Applicant: Mitsubishi Chemical Corporation
Inventor： Akiteru Fujii
CPC classification number: G03G5/047 , G03G5/0525 , G03G5/056 , G03G5/0605 , G03G5/0607 , G03G5/0614 , G03G5/0696
Abstract: The invention provides an image forming apparatus and an electrophotographic photoreceptor, comprising: a conductive support; and at least a charge generation layer and a charge transport layer on the conductive support, wherein said charge generation layer contains a hydroxygallium phthalocyanine synthesized using a halogen solvent, said charge transport layer contains a polyester resin having a specific structural unit, and said charge transport layer is formed using a non-halogen solvent.
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Patent Agency Ranking
公开(公告)号：US09829813B2
公开(公告)日：2017-11-28
申请号：US15175343
申请日：2016-06-07
Applicant: FUJI XEROX CO., LTD.
Inventor： Katsumi Nukada , Wataru Yamada , Takatsugu Doi , Yuko Iwadate
CPC classification number: G03G5/14726 , C08J3/02 , C08J2300/102 , G03G5/0525 , G03G5/0539 , G03G21/18 , G03G2215/00957
Abstract: Provided is a fluorine-containing resin particle dispersion including: fluorine-containing resin particles, a resin which is not dissolved in at least one solvent in a group of hydroxyl group-containing solvents including an alcohol-based solvent having 1 to 10 carbon atoms, containing no aromatic ring in the molecule structure, and a water-based medium, and which is adhered on the surface of the fluorine-containing resin particles, and at least one solvent, in which the resin is not dissolved, in the group of hydroxyl group-containing solvents, in which the fluorine-containing resin particles having the resin adhered on the surface thereof are dispersed.
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公开(公告)号：US09829810B2
公开(公告)日：2017-11-28
申请号：US15342868
申请日：2016-11-03
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masaki Nonaka , Ryoichi Tokimitsu , Shinji Takagi , Koichi Nakata , Haruki Mori
CPC classification number: G03G5/0592 , G03G5/0525 , G03G5/0614 , G03G5/14769 , G03G5/14791
Abstract: In an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support, a surface layer of the electrophotographic photosensitive member contains a cured product obtained by copolymerizing at least one compound (i) selected from the group consisting of a triphenylamine compound having a hydroxymethyl group and a benzidine compound having a hydroxymethyl group, and at least one compound (ii) selected from the group consisting of a compound represented by the following formula (1), a compound represented by the following formula (2), a compound represented by the following formula (3), and a compound represented by the following formula (4):
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公开(公告)号：US20170307989A1
公开(公告)日：2017-10-26
申请号：US15492914
申请日：2017-04-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Takahiro OKI , Kensuke OKAWA , Akihiko OGATA
CPC classification number: G03G5/056 , G03G5/047 , G03G5/0517 , G03G5/0525 , G03G5/0542 , G03G5/0564 , G03G5/0614 , G03G5/0672 , G03G5/0696 , G03G5/102 , G03G5/144
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer contains at least a charge generating material, a charge transport material, and a binder resin. The binder resin includes a polyarylate resin. The polyarylate resin is represented by general formula (1) shown below. In general formula (1), X represents a divalent group represented by chemical formula (1-1), (1-2), (1-3), or (1-4) shown below.
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公开(公告)号：US09746816B2
公开(公告)日：2017-08-29
申请号：US13033338
申请日：2011-02-23
Applicant: Tadashi Mizushima , Akiteru Fujii , Takayuki Shoda
Inventor： Tadashi Mizushima , Akiteru Fujii , Takayuki Shoda
CPC classification number: G03G5/047 , G03G5/04 , G03G5/043 , G03G5/0525 , G03G5/0542 , G03G5/056 , G03G5/0567 , G03G5/0614 , G03G5/0618 , G03G5/0629 , G03G5/1473 , G03G9/0819 , G03G9/0827 , G03G9/08711 , G03G9/0904 , G03G9/0906 , G03G9/0926 , G03G9/09321 , G03G9/09364 , G03G9/09385 , G03G9/09392 , G03G21/0005 , G03G21/0011 , G03G2215/00957 , G03G2215/0604
Abstract: The invention is to provide an image forming apparatus and an electrophotographic cartridge, which are free from problems of cleaning failure, filming, soiling, residual images (ghosts), fogging, density reduction, noise and the like and which can provide high-definition images even when a toner having a small particle size and having a high degree of circularity is used and even when a photoreceptor having a small outer diameter is used. An image forming apparatus comprising: an electrophotographic photoreceptor containing a conductive support and a photosensitive layer on the conductive support, a charging unit for charging the electrophotographic photoreceptor, an imagewise exposing unit for imagewise exposing the charged electrophotographic photoreceptor to form an electrostatic latent image thereon, a developing unit for developing the electrostatic latent image with a toner, and a transferring unit for transferring the toner from the electrophotographic photoreceptor to a receiving unit, wherein the outer diameter of the electrophotographic photoreceptor is 20 mm or less, the photosensitive layer contains a polyarylate resin, and the toner satisfies the specific requirements (1) and (2).
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公开(公告)号：US20170205719A1
公开(公告)日：2017-07-20
申请号：US15468145
申请日：2017-03-24
Applicant: MITSUBUSHI CHEMICAL CORPORATION
Inventor： Tadashi MIZUSHIMA , Akiteru Fujii , Takayuki Shoda
CPC classification number: G03G5/047 , G03G5/04 , G03G5/043 , G03G5/0525 , G03G5/0542 , G03G5/056 , G03G5/0567 , G03G5/0614 , G03G5/0618 , G03G5/0629 , G03G5/1473 , G03G9/0819 , G03G9/0827 , G03G9/08711 , G03G9/0904 , G03G9/0906 , G03G9/0926 , G03G9/09321 , G03G9/09364 , G03G9/09385 , G03G9/09392 , G03G21/0005 , G03G21/0011 , G03G2215/00957 , G03G2215/0604
Abstract: The invention is to provide an image forming apparatus and an electrophotographic cartridge, which are free from problems of cleaning failure, filming, soiling, residual images (ghosts), fogging, density reduction, noise and the like and which can provide high-definition images even when a toner having a small particle size and having a high degree of circularity is used and even when a photoreceptor having a small outer diameter is used. An image forming apparatus comprising: an electrophotographic photoreceptor containing a conductive support and a photosensitive layer on the conductive support, a charging unit for charging the electrophotographic photoreceptor, an imagewise exposing unit for imagewise exposing the charged electrophotographic photoreceptor to form an electrostatic latent image thereon, a developing unit for developing the electrostatic latent image with a toner, and a transferring unit for transferring the toner from the electrophotographic photoreceptor to a receiving unit, wherein the outer diameter of the electrophotographic photoreceptor is 20 mm or less, the photosensitive layer contains a polyarylate resin, and the toner satisfies the specific requirements (1) and (2).
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