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    TRIPHENYLAMINE DERIVATIVE, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    3.
    发明申请
    TRIPHENYLAMINE DERIVATIVE, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER 有权
    三苯胺衍生物，其制造方法和电子感光成像

    公开(公告)号：US20140357895A1

    公开(公告)日：2014-12-04

    申请号：US14288542

    申请日：2014-05-28

    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

    Inventor： Fumio SUGAI ,  Kensuke KOJIMA ,  Kenji KITAGUCHI ,  Hideki OKADA

    IPC: C07C217/92 ,  C07C209/10 ,  G03G5/06 ,  C07C211/54

    CPC classification number: C07C217/92 ,  C07C209/10 ,  C07C211/54 ,  G03G5/0614 ,  G03G5/0618 ,  G03G5/0672

    Abstract: A triphenylamine derivative is represented by General Formula (1). In General Formula (1), OR1 represents an alkoxy group having 2 to 8 carbon atoms. R2 to R6 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. Ar1 and Ar2 each independently represent a hydrogen atom, an aryl group having 6 to 20 carbon atoms and optionally substituted with an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms and optionally substituted with an alkoxy group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, or a 3- to 10-membered heterocyclic group. Note that the case where Ar1 and Ar2 are both a hydrogen atom is excluded.

    Abstract translation: 三苯胺衍生物由通式（1）表示。 在通式（1）中，OR 1表示碳原子数2〜8的烷氧基。 R 2〜R 6各自独立地表示氢原子或碳原子数1〜8的烷基。 Ar 1和Ar 2各自独立地表示氢原子，碳原子数6〜20的芳基，可以被碳原子数1〜6的烷基取代的芳基，碳原子数6〜20的芳基， 1至6个碳原子，具有3至10个碳原子的环烷基或3至10元杂环基。 注意，不排除Ar1和Ar2都是氢原子的情况。

    POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    4.
    发明公开
    POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER 审中-公开

    公开(公告)号：US20240103389A1

    公开(公告)日：2024-03-28

    申请号：US18262164

    申请日：2022-01-19

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Jun AZUMA ,  Keiji MARUO ,  Kenji KITAGUCHI

    IPC: G03G5/05 ,  C08G63/197 ,  C08G63/199

    CPC classification number: G03G5/056 ,  C08G63/197 ,  C08G63/199

    Abstract: A polyarylate resin includes repeating units represented by formulas (1), (2), and (4). The polyarylate resin further includes a repeating unit represented by formula (3) and a percentage of the number of repeats of the repeating unit represented by formula (3) relative to the total number of repeats of the respective repeating units represented by formulas (1) and (3) is greater than 0% and less than 50%. Or, the polyarylate resin does not include the repeating unit represented by formula (3).
    In formula (1), R1 and R2 each represent, independently of one another, a hydrogen atom or a methyl group and X represents a divalent group represented by formula (X1) or (X2). In formula (3), R5 and R6 each represent, independently of one another, a hydrogen atom or a methyl group.

    POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    5.
    发明申请
    POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER 有权

    公开(公告)号：US20220342326A1

    公开(公告)日：2022-10-27

    申请号：US17705063

    申请日：2022-03-25

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Jun AZUMA ,  Keiji MARUO ,  Kenji KITAGUCHI

    IPC: G03G5/05 ,  C08G63/672

    Abstract: A polyarylate resin includes repeating units represented by formulas (1), (2), (3), and (4). A third percentage is greater than 0% and less than 50%. The third percentage is a percentage of the number of repeats of the repeating unit represented by formula (3) relative to the total of the number of repeats of the repeating unit represented by formula (1) and the number of repeats of the repeating unit represented by formula (3). A fourth percentage is at least 35% and less than 70%. The fourth percentage is a percentage of the number of repeats of the repeating unit represented by formula (4) relative to the total of the number of repeats of the repeating unit represented by formula (2) and the number of repeats of the repeating unit represented by formula (4).

    PRODUCTION METHOD FOR ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    8.
    发明申请
    PRODUCTION METHOD FOR ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER 审中-公开

    公开(公告)号：US20190354029A1

    公开(公告)日：2019-11-21

    申请号：US16411173

    申请日：2019-05-14

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Jun AZUMA ,  Tomofumi SHIMIZU ,  Kenji KITAGUCHI ,  Kiichiro OJI

    IPC: G03G5/05 ,  G03G5/06

    Abstract: A method for producing an electrophotographic photosensitive member includes an electrically conductive substrate and a photosensitive layer. The method includes applying an application liquid for photosensitive layer formation containing a solvent, a binder resin, and a hole transport material directly or indirectly onto the electrically conductive substrate, and removing a portion of the solvent, to form the photosensitive layer. The solvent contains a first solvent that is an alcohol having a carbon number of at least 1 and no greater than 3, and a second solvent other than the first solvent. The binder resin includes a polyarylate resin that is a polymerization product of monomers including a first monomer represented by general formula (1) and a second monomer represented by general formula (2),

    POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER
    9.
    发明申请
    POLYARYLATE RESIN AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER 审中-公开

    公开(公告)号：US20190270846A1

    公开(公告)日：2019-09-05

    申请号：US16461221

    申请日：2017-09-25

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Jun AZUMA ,  Kenji KITAGUCHI

    IPC: C08G63/181 ,  C08G63/193 ,  G03G5/06 ,  G03G5/05

    Abstract: A polyarylate resin is represented by general formula (1) shown below. In general formula (1), R1, R2, R3, and R4 each represent, independently of one another, a hydrogen atom or a methyl group. r and s each represent an integer of at least 0 and no greater than 49. t and u each represent an integer of at least 1 and no greater than 50. r+s+t+u=100. r+t=s+u. r and t may be the same as or different from each other. s and u may be the same as or different from each other. X represents a divalent group represented by chemical formula (2A), (2B), (2C), or (2D). Y represents a divalent group represented by chemical formula (4A), c (4B), or (4C). X and Y are different from each other.

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