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公开(公告)号：US20150261106A1
公开(公告)日：2015-09-17
申请号：US14656102
申请日：2015-03-12
Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
Inventor： Jun AZUMA , Kensuke OKAWA , Akihiko OGATA , Takahiro OKI
CPC classification number: G03G5/0614 , G03G5/0507 , G03G5/0564 , G03G5/0672 , G03G5/14704
Abstract: An electrophotographic photosensitive member includes a photosensitive layer. The photosensitive layer is a single-layer photosensitive layer or a multi-layer photosensitive layer having a charge transport layer as an outermost layer. Silica particles are contained in the photosensitive layer in an amount of no less than 0.5 parts by mass and no greater than 15 parts by mass relative to 100 parts by mass of a binder resin. The binder resin includes a polycarbonate resin represented by the general formula (1a) or the general formula (1b).
Abstract translation: 电子照相感光构件包括感光层。 感光层是具有作为最外层的电荷输送层的单层感光层或多层感光层。 相对于100质量份的粘合剂树脂，二氧化硅颗粒以不小于0.5质量份且不大于15质量份的量包含在感光层中。 粘合剂树脂包括由通式（1a）或通式（1b）表示的聚碳酸酯树脂。
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22.发明公开公开(公告)号：US20240353792A1
公开(公告)日：2024-10-24
申请号：US18636961
申请日：2024-04-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yuko IWASHITA , Jun AZUMA , Keiji MARUO , Kazuaki EZURE , Yuichi YOSHIDA , Kazutaka SUGIMOTO , Yasuhiro OISHI , Kazunari HAMASAKI
IPC: G03G21/18 , G03G5/14 , G03G7/00 , G03G15/095
CPC classification number: G03G21/1814 , G03G5/142 , G03G7/0053 , G03G15/095 , G03G2215/00957
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 a component derived from an organic siloxane compound and 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.
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公开(公告)号：US20190354028A1
公开(公告)日：2019-11-21
申请号：US16401401
申请日：2019-05-02
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Jun AZUMA
Abstract: A method of manufacturing an electrographic photoreceptor provided with a conductive substrate and a single-layered photosensitive layer is disclosed. The method includes: directly or indirectly applying a coating liquid for photosensitive layer formation onto the conductive substrate, the coating liquid containing a solvent, a charge generating agent, a binder resin, a hole transport material and an electron transport material; and removing part of the solvent to form the single-layered photosensitive layer. The solvent includes a first solvent as an alcohol with 1 to 3 carbon atoms and a second solvent as a solvent other than the first solvent. The binder resin includes a polyarylate resin as a polymerized product of monomers including a first monomer represented by General Formula (1) below and a second monomer represented by General Formula (2) below. The electron transport material includes a compound represented by General Formula (31), (32), (33) or (34) below.
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24.发明申请公开(公告)号：US20190310562A1
公开(公告)日：2019-10-10
申请号：US16345495
申请日：2017-08-24
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroki TSURUMI , Eiichi MIYAMOTO , Jun AZUMA
Abstract: A photosensitive member (1) includes a conductive substrate (2) and a photosensitive layer (3). The photosensitive layer is a single-layer photosensitive layer (3c). The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The hole transport material includes a triphenylamine derivative represented by general formula (HT). The electron transport material includes a compound represented by general formula (ET1), (ET2), (ET3), (ET4), or (ET5). The binder resin includes a polyarylate resin represented by general formula (1)
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公开(公告)号：US20190025720A1
公开(公告)日：2019-01-24
申请号：US16035859
申请日：2018-07-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Kensuke KOJIMA , Tomofumi SHIMIZU
CPC classification number: G03G5/0618 , G03G5/0546 , G03G5/056 , G03G5/0564 , G03G5/0607 , G03G5/0609 , G03G5/0614 , G03G5/0651 , G03G5/0677
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer includes a charge generating layer and a charge transport layer. The charge generating layer contains a charge generating material. The charge transport layer contains a hole transport material and a binder resin. The charge transport layer further contains an electron acceptor compound. The hole transport material includes a compound represented by general formula (1). In general formula (1), R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each represent, independently of one another, a hydrogen atom or a methyl group.
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Patent Agency Ranking
公开(公告)号：US20180246402A1
公开(公告)日：2018-08-30
申请号：US15899400
申请日：2018-02-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA
CPC classification number: G03C1/7954 , C07C211/01 , C07C211/54 , C08G63/189 , C08G63/195 , C08G63/40 , C08G65/38 , C08G81/00 , C08L67/025 , C08L101/00 , G03C1/06 , G03G5/056 , G03G5/0614 , G03G5/0672
Abstract: A polyarylate resin is represented by general formula (1) shown below. In general formula (1), R1 represents a hydrogen atom or methyl group. R2 and R3 each represent a hydrogen atom or an alkyl group having a carbon number of at least 1 and no greater than 4. R2 and R3 are not the same as one another. When R1 represents a hydrogen atom, R2 and R3 are not bonded to one another. When R1 represents a methyl group, R2 and R3 are optionally bonded to one another to form a ring. r and s each represent a number greater than or equal to 0 and less than or equal to 49. t and u each represent a number greater than or equal to 1 and less than or equal to 50. r+s+t+u=100. r+t=s+u.
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27.发明申请公开(公告)号：US20180046101A1
公开(公告)日：2018-02-15
申请号：US15667678
申请日：2017-08-03
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Keiji MARUO , Jun AZUMA
CPC classification number: G03G5/056 , G03G5/0596 , G03G5/0605 , G03G5/0607 , G03G5/0609 , G03G5/0614 , G03G5/0618 , G03G5/0631 , G03G5/0637 , G03G5/0646 , G03G15/75 , G03G21/1814
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer is a single-layer photosensitive layer. The photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The binder resin contains a polyarylate resin (1). The polyarylate resin is represented by general formula (1). The photosensitive layer has a scratch resistance depth of no greater than 0.50 μm. The photosensitive layer has a Vickers hardness of at least 17.0 HV.
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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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29.发明申请公开(公告)号：US20170003608A1
公开(公告)日：2017-01-05
申请号：US15195319
申请日：2016-06-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Takahiro OKI , Keiji MARUO
IPC: G03G15/00
CPC classification number: G03G5/0614 , G03G5/056 , G03G5/0564 , G03G5/0672 , G03G5/0675 , G03G5/0696 , G03G15/75
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer contains at least a charge generating material, a hole transport material, and a binder resin. The hole transport material is a compound represented by the following general formula (1). The binder resin is a resin represented by the following general formula (2). In general formula (1), R1 and R3 each independently represent an alkyl group, an aryl group, an aralkyl group, or an alkoxy group; and R2 and R4 each independently represent an alkyl group, or an alkoxy group. In general formula (2), R23, R24, and R25 each independently represent a hydrogen atom, or a C1-4 alkyl group, at least one of R23, R24, and R25 representing a C1-4 alkyl group; p+q=1.00, and 0.35≦p
Abstract translation: 电子照相感光构件（1）包括导电基底（2）和感光层（3）。 感光层至少含有电荷产生材料，空穴传输材料和粘合剂树脂。 空穴传输材料是由以下通式（1）表示的化合物。 粘合剂树脂是由以下通式（2）表示的树脂。 在通式（1）中，R 1和R 3各自独立地表示烷基，芳基，芳烷基或烷氧基; R 2和R 4各自独立地表示烷基或烷氧基。 在通式（2）中，R 23，R 24和R 25各自独立地表示氢原子或C 1-4烷基，R 23，R 24和R 25中的至少一个表示C 1- 4烷基; p + q = 1.00，0.35‰p <1.00; n表示2或3。
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公开(公告)号：US20150093696A1
公开(公告)日：2015-04-02
申请号：US14496354
申请日：2014-09-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Hideki OKADA
CPC classification number: G03G5/0614 , G03G5/0517 , G03G5/0521 , G03G5/0564 , G03G5/0668
Abstract: An electrophotographic photosensitive member includes a photosensitive layer that contains a charge generating material, a hole transport material, a binder resin, and a plasticizer. The hole transport material contains a triarylamine derivative represented by General Formula (1) below. The plasticizer contains at least one of a compound represented by General Formula (2a) and a compound represented by General Formula (2b) below.
Abstract translation: 电子照相感光构件包括含有电荷产生材料，空穴传输材料，粘合剂树脂和增塑剂的感光层。 空穴输送材料含有下述通式（1）表示的三芳基胺衍生物。 增塑剂含有通式（2a）表示的化合物和下述通式（2b）表示的化合物中的至少一种。
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