-
公开(公告)号：US10372048B2
公开(公告)日：2019-08-06
申请号：US16035859
申请日：2018-07-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun Azuma , Kensuke Kojima , Tomofumi Shimizu
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.
-
公开(公告)号：US09448496B2
公开(公告)日：2016-09-20
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.
-
公开(公告)号：US09436104B2
公开(公告)日：2016-09-06
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).
-
公开(公告)号：US10761441B2
公开(公告)日：2020-09-01
申请号：US16411173
申请日：2019-05-14
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun Azuma , Tomofumi Shimizu , Kenji Kitaguchi , Kiichiro Oji
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),
-
15.发明授权公开(公告)号：US10761440B2
公开(公告)日：2020-09-01
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)
-
Patent Agency Ranking
16.发明授权公开(公告)号：US10359713B2
公开(公告)日：2019-07-23
申请号：US15948825
申请日：2018-04-09
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi Shimizu , Jun Azuma
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer having a single-layer structure. The photosensitive layer contains a charge generating material, an electron transport material, and a binder resin. The electron transport material includes a compound having a halogen atom and represented by a general formula (1), (2), (3), (4), or (5). The binder resin includes a polyarylate resin. The polyarylate resin includes at least one type of repeating unit each represented by general formula (11), at least one type of repeating unit each represented by general formula (12), and a terminal group represented by general formula (13). In general formula (13), Rf represents a chain aliphatic group substituted by at least one fluoro group. A charge of calcium carbonate charged by friction between the photosensitive layer and the calcium carbonate is at least +8.0 μC/g.
-
17.发明授权公开(公告)号：US10191397B2
公开(公告)日：2019-01-29
申请号：US15668774
申请日：2017-08-04
Applicant: KYOCERA Document Solutions Inc.
Inventor： Keiji Maruo , Tomofumi Shimizu , Jun Azuma
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. The polyarylate resin is represented by general formula (1). The hole transport material contains a compound represented by general formula (HTM1), (HTM2), (HTM3), (HTM4), (HTM5), (HTM6), or (HTM7). 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.
-
18.发明授权公开(公告)号：US09829811B2
公开(公告)日：2017-11-28
申请号：US15195319
申请日：2016-06-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Jun Azuma , Takahiro Oki , Keiji Maruo
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
-
公开(公告)号：US09429859B2
公开(公告)日：2016-08-30
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。
-
20.发明授权公开(公告)号：US10996575B2
公开(公告)日：2021-05-04
申请号：US16740196
申请日：2020-01-10
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi Shimizu , Kazuaki Ezure , Hayase Yamamoto , Jun Azuma
Abstract: A photosensitive layer included in 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 (1). The binder resin includes a polyarylate resin having at least one repeating unit (10) and at least one repeating unit (11). Alternatively, the binder resin includes a polycarbonate resin having a repeating unit (20) and a repeating unit (21). The general formulas (1), (10), (11), (20), and (21) are as follows
-
-
-
-
-
-
-
-
-
Search Results
25
records
(took 0.02 seconds)
