公开(公告)号：US11067909B2

公开(公告)日：2021-07-20

申请号：US16632197

申请日：2018-07-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Jun Azuma ,  Kensuke Kojima ,  Tomofumi Shimizu ,  Hideki Okada

IPC: G03G5/06 ,  G03G5/05 ,  C07C209/06 ,  C07C211/54 ,  G03G5/047

Abstract: A compound is represented by general formula (1). In general formula (1), R1 and R2 each represent, independently of one another, a hydrogen atom, a methyl group, or an ethyl group, and a sum of the number of carbon atoms of the chemical group represented by R1 and the number of carbon atoms of the chemical group represented by R2 is 2. R3 and R4 each represent, independently of one another, a hydrogen atom, a methyl group, or an ethyl group, and a sum of the number of carbon atoms of the chemical group represented by R3 and the number of carbon atoms of the chemical group represented by R1 is 2. A photosensitive layer of an electrophotographic photosensitive member contains at least a charge generating material, a hole transport material, and a binder resin. The hole transport material includes a compound represented by general formula (1)

公开(公告)号：US10338485B2

公开(公告)日：2019-07-02

申请号：US16080534

申请日：2017-02-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada

IPC: G03G5/06

Abstract: An electrophotographic photosensitive member (1) includes a conductive substrate (2) and a photosensitive layer (3). The photosensitive layer (3) contains a charge generating material and a compound represented by general formula (1) shown below. In general formula (1), R1 and R2 each represent, independently of one another: a C1-20 alkyl group optionally having at least one of a C6-14 aryl group optionally having a substituent and a C2-20 alkoxycarbonyl group; a C6-14 aryl group optionally having a C1-20 alkyl group; a C3-10 cycloalkyl group; or a C1-6 alkoxy group.

公开(公告)号：US09817325B2

公开(公告)日：2017-11-14

申请号：US15214908

申请日：2016-07-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada

IPC: G03G5/04 ,  G03G5/06 ,  C07C211/54

CPC classification number: G03G5/0614 ,  C07C211/54 ,  G03G5/0672 ,  G03G5/0696

Abstract: A benzidine derivative is represented by general formula (1). In the general formula (1), R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each represent, independently of one another, a hydrogen atom, a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 14. n represents an integer of at least 0 and no greater than 2.

公开(公告)号：US09783491B2

公开(公告)日：2017-10-10

申请号：US14953156

申请日：2015-11-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada ,  Fumio Sugai ,  Kensuke Kojima

IPC: G03G5/00 ,  C07C245/04 ,  G03G5/06 ,  C07D213/81

CPC classification number: C07C245/04 ,  C07D213/81 ,  G03G5/0612

Abstract: A quinone derivative represented by general formula (1) where, in the general formula (1), chemical groups R1 each represent, independently of one another, an alkyl group, a cycloalkyl group, an alkoxy group, an aralkyl group, or an aryl group, and R2 represents an alkyl group, an aralkyl group, a cycloalkyl group, an alkoxy group, an aryl group, or a heterocyclic group.

公开(公告)号：US09690217B2

公开(公告)日：2017-06-27

申请号：US14837298

申请日：2015-08-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada ,  Fumio Sugai ,  Kensuke Kojima ,  Hiroki Tsurumi ,  Yohei Yamamoto ,  Eiichi Miyamoto

IPC: G03G5/06 ,  G03G5/04 ,  C07C211/54 ,  C07C217/80

CPC classification number: G03G5/0614 ,  C07C211/54 ,  C07C217/80 ,  G03G5/04 ,  G03G5/0672

Abstract: A triarylamine derivative is represented by general formula (I). In general formula (I), R1 and R2 each represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, and an optionally substituted aryl group having a carbon number of 6-12. In general formula (I), k and l each represent an integer of at least 0 and no greater than 4. When k and l represent integers greater than 1, chemical groups R1 bonded to the same aromatic ring and chemical groups R2 bonded to the same aromatic ring may be the same or different to one another. In general formula (I), m and n each represent a different integer of at least 1 and no greater than 3.

公开(公告)号：US09436105B2

公开(公告)日：2016-09-06

申请号：US14754572

申请日：2015-06-29

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada ,  Kensuke Kojima ,  Fumio Sugai

IPC: G03G5/047 ,  G03G5/06 ,  C07C211/54 ,  C07C217/80

CPC classification number: G03G5/0614 ,  C07C211/54 ,  C07C217/80 ,  G03G5/047 ,  G03G5/0618 ,  H01L51/0059

Abstract: A triarylamine derivative is represented by general formula (I). In general formula (I), R1 and R2 each represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, and an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. In general formula (I), m and n each represent an integer of at least 0 and no greater than 4. When m and n represent integers greater than 1, chemical groups R1 bonded to the same aromatic ring and chemical groups R2 bonded to the same aromatic ring may be the same or different to one another.

公开(公告)号：US10545418B2

公开(公告)日：2020-01-28

申请号：US16092013

申请日：2017-03-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Tomofumi Shimizu ,  Hideki Okada

IPC: G03G5/06 ,  C07C211/54 ,  C07D241/36

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 containing at least a charge generating material, an electron transport material, a hole transport material, and a binder resin. The electron transport material includes a naphthoquinone derivative represented by general formula (1). An amount of triboelectric charge of calcium carbonate as measured by charging the calcium carbonate through friction with the photosensitive layer (3) is at least +7 μC/g. In general formula (1), R11 and R12 are respectively the same as R11 and R12 described in the description.

公开(公告)号：US10209638B2

公开(公告)日：2019-02-19

申请号：US15972520

申请日：2018-05-07

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada

IPC: G03G5/06 ,  G03G5/05 ,  G03G5/10

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—.

公开(公告)号：US10126667B2

公开(公告)日：2018-11-13

申请号：US15616381

申请日：2017-06-07

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada ,  Fumio Sugai ,  Kensuke Kojima

IPC: G03G5/06 ,  C07C49/683 ,  C07C49/697 ,  C07C255/56 ,  G03G5/05

Abstract: A quinone derivative is represented by general formula (1), (2), or (3). In general formulae (1), (2), and (3), R1, R2, R3, R4, R11, R12, R13, R14, R21, R22, R23, and R24 each represent, independently of one another, a hydrogen atom, a cyano group, a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, or an optionally substituted alkoxy group having a carbon number of 1-6. R5, R6, R15, R16, R25, and R26 each represent, independently of one another, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, an optionally substituted aryl group having a carbon number of 6-14, an optionally substituted aralkyl group having a carbon number of 7-12, or an optionally substituted cycloalkyl group having a carbon number of 3-10.

公开(公告)号：US09581921B2

公开(公告)日：2017-02-28

申请号：US14808114

申请日：2015-07-24

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hideki Okada ,  Fumio Sugai ,  Kensuke Kojima

IPC: G03G5/00 ,  G03G5/06 ,  G03G5/047

CPC classification number: G03G5/0618 ,  G03G5/047 ,  G03G5/0614 ,  G03G5/0672 ,  G03G5/0696

Abstract: An electrophotographic photosensitive member includes a photosensitive layer containing a charge generating material, a charge transport material, and a binder resin. The photosensitive layer is a multi-layer type photosensitive layer or a single-layer type photosensitive layer. The multi-layer type photosensitive layer includes a charge generating layer that contains the charge generating material and a charge transport layer that contains the charge transport material and the binder resin, and in which the charge transport layer is located on the charge generating layer. The single-layer type photosensitive layer contains the charge generating material, the charge transport material, and the binder resin. The charge transport material is an enamine derivative represented by general formula (1). In general formula (1), R1, R2, l, m, and n are each as defined in the specification.

Abstract translation: 电子照相感光构件包括含有电荷产生材料的感光层，电荷输送材料和粘合剂树脂。 感光层是多层型感光层或单层型感光层。 多层型感光层包括含有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，其中电荷输送层位于电荷产生层上。 单层型感光层包含电荷产生材料，电荷输送材料和粘合剂树脂。 电荷输送材料是由通式（1）表示的烯胺衍生物。 在通式（1）中，R 1，R 2，l，m和n各自如说明书中所定义。