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1.发明公开公开(公告)号：US20240192614A1
公开(公告)日：2024-06-13
申请号：US18516883
申请日：2023-11-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Makoto SHISHIDO
CPC classification number: G03G5/056 , G03G5/0596 , G03G5/061446 , G03G5/0672 , G03G15/75
Abstract: A photosensitive layer of an electrophotographic photosensitive member is a single layer and contains a charge generating material, a binder resin, an electron transport material, a hole transport material, and resin particles. The binder resin includes a polyarylate resin. The polyarylate resin includes repeating units represented by formulas (1), (2), (3), and (4).
The repeating unit (3) has a percentage content of greater than 0% and less than 50% to the total number of repeats of the repeating units (1) and (3). The repeating unit (4) has a percentage content of at least 35% and less than 70% to the total number of repeats of the repeating units (2) and (4).-
Patent Agency Ranking
2.发明申请公开(公告)号：US20160282732A1
公开(公告)日：2016-09-29
申请号：US15077144
申请日：2016-03-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Makoto SHISHIDO
IPC: G03G15/00
CPC classification number: G03G5/0614 , G03G5/0609 , G03G5/0612 , G03G5/0616 , G03G5/0631 , G03G5/0651
Abstract: A positively chargeable single-layer 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, an electron transport material, and an electron accepting compound. The hole transport material includes a benzidine derivative. The electron transport material includes at least one compound selected from the group consisting of compounds represented by general formulae (1), (2), (3), and (4) shown below. The electron accepting compound includes at least one compound selected from the group consisting of compounds represented by general formulae (5) and (6) shown below.
Abstract translation: 要解决的问题：提供一种可充电的单层电子照相感光构件，其限制由曝光记录引起的图像缺陷的发生，并且灵敏度优异。解决方案：可带正电的单层电子照相感光构件1包括感光层3 感光层至少含有电荷产生材料，空穴传输材料，电子传输材料和电子接受化合物。 空穴传输材料包括联苯胺衍生物。 电子传输材料包括选自由联苯醌类化合物组成的组中的至少一种。 电子接受性化合物包括选自图中由通式（5）表示的化合物的一组。选择的图：图1
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3.发明申请公开(公告)号：US20220128913A1
公开(公告)日：2022-04-28
申请号：US17505721
申请日：2021-10-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Makoto SHISHIDO , Kazuaki EZURE , Kiichiro OJI , Katsuya TAKANO
Abstract: An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer is a single layer and contains a charge generating material, a hole transport material, an electron transport material, and a polyarylate resin. The polyarylate resin includes repeating units represented by formulas (1), (2), and (3). A ratio n1/n2 of the number n1 of repeats of the repeating unit represented by formula (1) to the number n2 of repeats of the repeating unit represented by formula (2) is at least 1.0.
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4.发明公开公开(公告)号：US20240201607A1
公开(公告)日：2024-06-20
申请号：US18518404
申请日：2023-11-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Makoto SHISHIDO
CPC classification number: G03G5/056 , G03G5/0609 , G03G5/0618 , G03G5/0672 , G03G15/75
Abstract: A photosensitive layer being a single layer of an electrophotographic photosensitive member contains a charge generating material, a binder resin, an electron transport material, and a hole transport material. The binder resin includes a polyarylate resin. The polyarylate resin includes repeating units represented by formulas (1), (2), (3), and (4).
The repeating unit (3) has a percentage content of greater than 0% and less than 50% to a total number of repeats of the repeating units (1) and (3). The repeating unit (4) has a percentage content of at least 35% and less than 70% to a total number of repeats of the repeating units (2) and (4).-
5.发明公开公开(公告)号：US20240192613A1
公开(公告)日：2024-06-13
申请号：US18518395
申请日：2023-11-22
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Makoto SHISHIDO
CPC classification number: G03G5/0528 , G03G5/0609 , G03G5/06144 , G03G5/06145 , G03G5/0631 , G03G5/0637 , G03G15/0216 , G03G15/04036 , G03G21/0047 , G03G21/12
Abstract: A photosensitive layer of an electrophotographic photosensitive member is a single layer and contains a charge generating material, a binder resin, a first electron transport material, a second electron transport material, and a hole transport material. The binder resin includes a polyarylate resin. The polyarylate resin includes repeating units represented by formulas (1), (2), (3), and (4).
The repeating unit (3) has a percentage content of greater than 0% and less than 50% to a total number of repeats of the repeating units (1) and (3). The repeating unit (4) has a percentage content of at least 35% and less than 70% to a total number of repeats of the repeating units (2) and (4).-
6.发明申请公开(公告)号：US20220413404A1
公开(公告)日：2022-12-29
申请号：US17752454
申请日：2022-05-24
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomofumi SHIMIZU , Makoto SHISHIDO
IPC: G03G5/05 , C07C211/54 , C07F15/00 , C07D259/00 , C07D231/22 , C07C50/10 , C07C50/12 , C07D471/04 , C07C245/06 , G03G5/06
Abstract: A photosensitive layer of an electrophotographic photosensitive member is a single layer and contains a charge generating material, a hole transport material, a first electron transport material, a second electron transport material, and a binder resin. The binder resin includes a polyarylate resin. The polyarylate resin includes repeating units (1), (2), (3), and (4). A percentage of the number of repeats of the repeating unit (3) relative to the total of the number of repeats of the repeating units (1) and the number of repeats of the repeating unit (3) is greater than 0% and less than 20%. The first electron transport material includes a compound represented by formula (A15) or (A16). The second electron transport material includes a compound represented by formula (B10), (B11), (B12), (B13), or (B14)
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