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公开(公告)号：US20150253682A1
公开(公告)日：2015-09-10
申请号：US14641193
申请日：2015-03-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Kensuke OKAWA , Akihiko OGATA , Takahiro OKI
IPC: G03G5/047
CPC classification number: G03G5/047 , G03G5/04 , G03G5/043 , G03G5/0507 , G03G5/0564 , G03G5/0605 , G03G5/0609 , G03G5/0612 , G03G5/0614 , G03G5/0668 , G03G5/0672 , G03G5/0696
Abstract: An electrophotographic photosensitive member has a photosensitive layer. The photosensitive layer is a multi-layer photosensitive layer having a charge transport layer being an outermost layer or a single-layer photosensitive layer. The amount of silica particles contained in the photosensitive layer is at least 0.5 parts by mass and no greater than 15 parts by mass relative to 100 parts by mass of a binder resin contained in the photosensitive layer.
Abstract translation: 电子照相感光构件具有感光层。 感光层是具有作为最外层或单层感光层的电荷输送层的多层感光层。 包含在感光层中的二氧化硅颗粒的量相对于感光层中包含的粘合剂树脂100质量份为至少0.5质量份且不大于15质量份。
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公开(公告)号：US20140356773A1
公开(公告)日：2014-12-04
申请号：US14288614
申请日：2014-05-28
Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
Inventor： Jun AZUMA , Keiji MARUO , Kensuke OKAWA , Akihiko OGATA
CPC classification number: G03G5/047 , G03G5/0564 , G03G5/0614 , G03G5/0672
Abstract: An electrophotographic photosensitive member includes a photosensitive layer. The photosensitive layer contains a charge generating material, a hole transport material, and a binder resin. The hole transport material contains an amine stilbene derivative represented by a general formula (1), and the binder resin contains a polycarbonate resin represented by a general formula (2).
Abstract translation: 电子照相感光构件包括感光层。 感光层含有电荷产生材料，空穴传输材料和粘合剂树脂。 空穴传输材料含有由通式（1）表示的胺二苯乙烯衍生物，粘合剂树脂含有由通式（2）表示的聚碳酸酯树脂。
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13.发明申请公开(公告)号：US20140212802A1
公开(公告)日：2014-07-31
申请号：US14168959
申请日：2014-01-30
Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
Inventor： Junichiro OTSUBO , Jun AZUMA , Takayuki INOUE
CPC classification number: G03G5/0564 , G03G5/047 , G03G5/0517 , G03G5/0525
Abstract: A multi-layered electrophotographic photosensitive member includes a multi-layered photosensitive layer. In the multi-layered photosensitive layer, a charge generating layer that contains a charge generating material and a charge transport layer that contains a charge transport material and a binder resin are layered sequentially. The binder resin includes a polycarbonate resin represented by a formula (1).
Abstract translation: 多层电子照相感光构件包括多层感光层。 在多层感光层中，依次层叠包含电荷产生材料的电荷产生层和包含电荷输送材料和粘合剂树脂的电荷输送层。 粘合剂树脂包括由式（1）表示的聚碳酸酯树脂。
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14.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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15.发明公开公开(公告)号：US20240353771A1
公开(公告)日：2024-10-24
申请号：US18638286
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
CPC classification number: G03G5/142 , G03G7/0053 , G03G15/75
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. 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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Patent Agency Ranking
16.发明公开公开(公告)号：US20240334816A1
公开(公告)日：2024-10-03
申请号：US18623705
申请日：2024-04-01
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Kenji KITAGUCHI
CPC classification number: H10K85/631 , H10K30/40 , H10K30/86
Abstract: Provided is a hole transport material represented by a general formula (1) below. In the general formula (1), R1 represents an alkoxy group or an alkyl group with four or fewer carbon atoms, R2 represents a hydrogen atom or a methyl group, and a total number of carbon atoms in R1 and R2 is two or more.
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公开(公告)号：US20200115313A1
公开(公告)日：2020-04-16
申请号：US16575125
申请日：2019-09-18
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA
Abstract: A naphthalenedicarboxylic acid dichloride production method includes causing a reaction between naphthalenedicarboxylic acid and a chlorinating agent at a reaction temperature of 20° C. or higher and 75° C. or lower in presence of a solvent including tetrahydrofuran. The causing a reaction in the naphthalenedicarboxylic acid dichloride production method is preferably performed in presence of N,N-disubstituted formamide.
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18.发明申请公开(公告)号：US20190354027A1
公开(公告)日：2019-11-21
申请号：US16472178
申请日：2017-11-30
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Jun AZUMA , Keiji MARUO
Abstract: An electrophotographic photosensitive member (1) includes a conductive substrate (2) and a photosensitive layer (3). The photosensitive layer (3) is a single-layer photosensitive layer (3c) and contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The binder resin includes a polyarylate resin represented by general formula (1). In general formula (1), Q1, Q2, Q3, and Q4 each represent a methyl group or a hydrogen atom. r, s, t, and u each represent a number greater than or equal to 15 and less than or equal to 35. X and Y each represent a divalent group represented by chemical formula (2A), chemical formula (2B), chemical formula (2C), or chemical formula (2D)
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19.发明申请公开(公告)号：US20190332023A1
公开(公告)日：2019-10-31
申请号：US16471154
申请日：2017-11-30
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Keiji MARUO , Jun AZUMA
IPC: G03G5/05 , C08L67/03 , C09B47/30 , C07D471/04 , C07D231/18 , G03G5/06
Abstract: An electrophotographic photosensitive member (1) includes a conductive substrate (2) and a photosensitive layer (3). The photosensitive layer (3) is a single-layer photosensitive layer (3c) and contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The binder resin includes a polyarylate resin represented by general formula (1). In general formula (1), Q1, Q2, Q3, and Q4 each represent a methyl group or a hydrogen atom. r, s, t, and u each represent a number greater than or equal to 15 and less than or equal to 35. X and Y each represent a divalent group represented by chemical formula (2A), chemical formula (2B), chemical formula (2C), or chemical formula (2D), and X and Y are different from each other
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公开(公告)号：US20150338754A1
公开(公告)日：2015-11-26
申请号：US14719911
申请日：2015-05-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun AZUMA , Keiji MARUO , Kensuke OKAWA , Akihiko OGATA
CPC classification number: G03G5/047 , G03G5/0614 , G03G5/0672 , G03G5/0696
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 located on the charge generating layer. The charge transport layer contains a pigment that is absorptive with respect to a wavelength of exposed light. The pigment is a metal phthalocyanine pigment represented by General Formula (I) or a metal-free phthalocyanine pigment represented by General Formula (II), where X represents a sulfur atom or an oxygen atom. R1 represents an aryl group or an alkyl group. R2-R4 each represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a phenoxy group, an alkylthio group, a phenylthio group, or a dialkylamino group. M represents a metal atom. Y represents non-substitution or an alkyl group, an alkoxy group, an aryloxy group, a halogen atom, an oxygen atom, or a hydroxyl group.
Abstract translation: 电子照相感光构件包括导电衬底和感光层。 感光层包括电荷产生层和位于电荷产生层上的电荷传输层。 电荷输送层含有相对于曝光光的波长吸收的颜料。 颜料是由通式（I）表示的金属酞菁颜料或由通式（II）表示的无金属酞菁颜料，其中X表示硫原子或氧原子。 R1表示芳基或烷基。 R 2 -R 4各自表示氢原子，烷基，芳基，烷氧基，苯氧基，烷硫基，苯硫基或二烷基氨基。 M表示金属原子。 Y表示非取代或烷基，烷氧基，芳氧基，卤素原子，氧原子或羟基。
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