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1.发明公开公开(公告)号：US20240353772A1
公开(公告)日：2024-10-24
申请号：US18638333
申请日：2024-04-17
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yuko IWASHITA , Jun AZUMA , Keiji MARUO , Kazuaki EZURE , Kazutaka SUGIMOTO , Yasuhiro OISHI , Kazunari HAMASAKI
Abstract: An electrophotographic photosensitive member includes a conductive substrate, an intermediate layer provided on the conductive substrate, and a photosensitive layer provided on the intermediate layer. The intermediate layer contains a specific polyamide resin and specific inorganic particles. The specific inorganic particles each include a metal oxide particle and a surface treatment layer covering at least a part of the surface of the metal oxide particle. The surface treatment layers contain at least one of aluminum oxide and silica. The specific polyamide resin includes a first repeating unit derived from an aliphatic dicarboxylic acid with a carbon number of at least 8 and no greater than 20 and a second repeating unit derived from a diamine compound with a cycloalkane structure. The total percentage content of the first repeating unit and the second repeating unit to all repeating units included in the specific polyamide resin is at least 80% by mol.
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2.发明授权公开(公告)号：US11726414B2
公开(公告)日：2023-08-15
申请号：US17223795
申请日：2021-04-06
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kunihiko Sekido , Masashi Nishi
CPC classification number: G03G5/0436 , G03G5/102 , G03G8/00
Abstract: An electrophotographic photosensitive member capable of maintaining a charging ability during repeated use is provided. An electrophotographic photosensitive member having a support, a conductive layer, a photosensitive layer and a protective layer in this order, wherein the protective layer contains a binding resin and a metal oxide particle, the metal oxide particle has a core and a coating layer, the core and the coating layer each contain titanium oxide, and the coating layer further includes niobium.
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公开(公告)号：US20180335710A1
公开(公告)日：2018-11-22
申请号：US15972520
申请日：2018-05-07
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki OKADA
IPC: G03G5/06
CPC classification number: G03G5/0653 , G03G5/0564 , G03G5/0614 , G03G5/0696 , G03G5/102 , G03G2215/00957
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer has a single-layer structure and contains a charge generating material and a compound represented by general formula (1) shown below. In the general formula (1), R1 and R2 each represent, independently of each other: an alkyl group having 1 to 12 carbon atoms and optionally substituted by an alkoxy group having 1 to 6 carbon atoms or an alkoxycarbonyl group having 2 to 6 carbon atoms; an aryl group having 6 to 14 carbon atoms and optionally substituted by an alkyl group having 1 to 6 carbon atoms; an aralkyl group having 7 to 20 carbon atoms; or a cycloalkyl group having 3 to 10 carbon atoms. X represents —S— or —SO2—.
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公开(公告)号：US20180329317A1
公开(公告)日：2018-11-15
申请号：US15969836
申请日：2018-05-03
Applicant: CANON KABUSHIKI KAISHA
Inventor： Haruki Mori , Masaki Nonaka , Shinji Takagi , Koichi Nakata
CPC classification number: G03G5/047 , G03G5/0564 , G03G5/0614 , G03G5/0696 , G03G5/071 , G03G5/102 , G03G5/14786 , G03G5/14795 , G03G2215/00957
Abstract: A coating film of a coating liquid for a surface layer, the coating liquid containing a hole transporting compound having a chain-polymerizable functional group and a compound having a specified structure, is cured to thereby form a surface layer of an electrophotographic photosensitive member.
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公开(公告)号：US10073365B2
公开(公告)日：2018-09-11
申请号：US15635949
申请日：2017-06-28
Applicant: Konica Minolta, Inc.
Inventor： Mari Ueda , Toshiyuki Fujita , Haruo Horiguchi
CPC classification number: G03G5/14717 , G03G5/047 , G03G5/0507 , G03G5/0525 , G03G5/0532 , G03G5/0542 , G03G5/0546 , G03G5/0564 , G03G5/0614 , G03G5/0618 , G03G5/062 , G03G5/0696 , G03G5/102 , G03G5/14704 , G03G5/14734 , G03G5/14791 , G03G15/75
Abstract: Provided is an electrophotographic photoreceptor including a conductive support, a photosensitive layer, and a surface protective layer disposed in sequence. The surface protective layer includes a cured product of a composition containing a polymerizable compound, a charge transporting material, and at least two polymerization initiators. The polymerization initiators include an acyl phosphine oxide and an O-acyl oxime.
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Patent Agency Ranking
公开(公告)号：US10073363B2
公开(公告)日：2018-09-11
申请号：US15397051
申请日：2017-01-03
Applicant: Mitsuaki Hirose , Daisuke Kubo , Hiroshi Hashiguchi
Inventor： Mitsuaki Hirose , Daisuke Kubo , Hiroshi Hashiguchi
CPC classification number: G03G5/102 , G03G5/10 , G03G5/101 , G03G15/05 , G03G21/1814 , G03G2215/00957 , G03G2221/183
Abstract: A photoconductor is provided. The photoconductor includes a cylindrical conductive support, a water-repellent resin film, a coating film, and a flange. The cylindrical conductive support has an end part having an inner circumferential surface having a surface roughness Rz of from 3 to 10 μm. The water-repellent resin film is on the inner circumferential surface of the end part of the cylindrical conductive support. The coating film is on an outer circumferential surface of the cylindrical conductive support. The flange has a cylindrical fitting part having an outer circumferential surface secured to the inner circumferential surface of the end part of the cylindrical conductive support.
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公开(公告)号：US20180224761A1
公开(公告)日：2018-08-09
申请号：US15885045
申请日：2018-01-31
Applicant: Konica Minolta, Inc.
Inventor： Toshiyuki Fujita , Haruo Horiguchi
CPC classification number: G03G5/0618 , G03G5/047 , G03G5/0614 , G03G5/071 , G03G5/102 , G03G5/14721 , G03G5/1473
Abstract: An object of the present invention is achieved by an electrophotographic photoreceptor containing a conductive support sequentially laminated thereon with at least a photosensitive layer and a protective layer in that order, wherein the protective layer includes a cured composition having a radical polymerizable compound for a binder, a charge transport agent having a radical polymerizable functional group, and a photopolymerization initiator; the charge transport agent having a radical polymerizable functional group has a maximum absorption wavelength in the range of 405±50 nm; and the charge transport agent having a radical polymerizable functional group and the photopolymerization initiator satisfy Formula (A), ΔG=Eox(D/D+)−Ered(A−/A)−E*≤−0.2(eV). Formula (A):
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8.发明授权公开(公告)号：US10025209B2
公开(公告)日：2018-07-17
申请号：US15485815
申请日：2017-04-12
Applicant: FUJI XEROX CO., LTD.
Inventor： Kenta Shingu , Hiroshi Tamemasa , Daisuke Haruyama
IPC: G03G5/00 , G03G5/10 , B05D1/18 , B05D7/14 , B05D5/06 , B05D3/02 , G03G5/06 , G03G5/05 , G03G5/047 , G03G5/14 , B21C1/22 , B21C23/08 , B05D3/00
CPC classification number: G03G5/102 , B05D1/18 , B05D2254/02 , B21C1/22 , B21C1/26 , B21C23/085 , B21C23/186 , G03G5/04 , G03G5/047 , G03G5/0517 , G03G5/0525 , G03G5/0542 , G03G5/0564 , G03G5/0614 , G03G5/0696 , G03G5/144 , G03G15/75
Abstract: A metallic ingot for impact pressing includes a contact surface of the metallic ingot to contact a male mold in impact pressing having a maximum height roughness Rz of 20 μm to 50 μm and an average length of a roughness curve element RSm of 150 μm to 400 μm, the male mold being to be used in combination with a female mold in the impact pressing.
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9.发明申请公开(公告)号：US20180173123A1
公开(公告)日：2018-06-21
申请号：US15485815
申请日：2017-04-12
Applicant: FUJI XEROX CO., LTD.
Inventor： Kenta SHINGU , Hiroshi TAMEMASA , Daisuke HARUYAMA
IPC: G03G5/10 , B05D1/18 , B05D7/14 , B05D5/06 , B05D3/02 , G03G5/06 , G03G5/05 , G03G5/047 , G03G5/14
CPC classification number: G03G5/102 , B05D1/18 , B05D3/002 , B05D3/0254 , B05D5/06 , B05D7/148 , B21C1/22 , B21C23/085 , G03G5/047 , G03G5/0517 , G03G5/0525 , G03G5/0542 , G03G5/0564 , G03G5/0614 , G03G5/0696 , G03G5/144
Abstract: A metallic ingot for impact pressing includes a contact surface of the metallic ingot to contact a male mold in impact pressing having a maximum height roughness Rz of 20 μm to 50 μm and an average length of a roughness curve element RSm of 150 μm to 400 μm, the male mold being to be used in combination with a female mold in the impact pressing.
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公开(公告)号：US20180173120A1
公开(公告)日：2018-06-21
申请号：US15837737
申请日：2017-12-11
Applicant: Konica Minolta, Inc.
Inventor： Haruo Horiguchi , Toshiyuki Fujita , Tomohiro Oshiyama
CPC classification number: G03G5/04 , G03G5/0507 , G03G5/0592 , G03G5/102 , G03G5/14704 , G03G5/14708 , G03G5/14791 , G03G15/75
Abstract: An electrophotographic photoreceptor according to the present invention includes a conductive support, a photosensitive layer, and a protective layer disposed in sequence. The protective layer includes a cured product of a composition containing a radically polymerizable compound, a charge transporting material exhibiting a maximal absorption wavelength of 405±50 nm, and a photopolymerization initiator of a single-molecule system; and a following Expression (A) is satisfied: G=Eox(D/D+)−Ered(A−/A)−E*≤−0.2 [eV] Expression (A): G represents a free energy change, Eox(D/D+) represents an oxidation potential of the charge transporting material, Ered(A−/A) represents a reduction potential of the photopolymerization initiator, and E* represents an excitation energy of the charge transporting material.
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