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1. 发明申请

US20140369715A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING THE PHOTORECEPTOR, AND ELECTROPHOTOGRAPHIC APPARATUS INCLUDING THE PHOTORECEPTOR 审中-公开
标题翻译：电子照相机，制造光电元件的方法，以及包括光电子器件的电子照相设备
公开(公告)号：US20140369715A1
公开(公告)日：2014-12-18
申请号：US14474794
申请日：2014-09-02
申请人： FUJI ELECTRIC CO., LTD.
发明人： Quanqiu ZHANG , Shinjiro SUZUKI , Fengqiang ZHU , Masaru TAKEUCHI
IPC分类号： G03G5/06
CPC分类号： G03G5/0614 , G03G5/043 , G03G5/047 , G03G5/0564 , G03G5/0607 , G03G5/0609 , G03G5/0672
摘要： A photoreceptor for electrophotography includes a photosensitive layer provided on a conductive substrate that contains at least a resin binder, a charge transport material, and an additive. The photoreceptor exhibits high photoresponsivity, stable electrical properties regardless of repeated use thereof, and high durability. The resin binder contains a polycarbonate resin composed of a copolymer having structural units expressed by general formulae (1) and (2) below. The charge transport material contains at least one type of stilbene compound expressed by general formulae (3), (4), and (5) below. The additive contains at least one type of diester compound expressed by general formula (6) below.
摘要翻译：电子照相用感光体包括设置在至少含有树脂粘合剂，电荷输送材料和添加剂的导电性基材上的感光层。感光体表现出高光响应性，稳定的电性能，而不管其重复使用，耐久性高。树脂粘合剂含有由下述通式（1）和（2）表示的结构单元的共聚物构成的聚碳酸酯树脂。电荷输送材料含有由下述通式（3），（4）和（5）表示的至少一种类型的茋化合物。该添加剂含有由下述通式（6）表示的至少一种二酯化合物。

2. 发明申请

US20220260934A1 ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD OF MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC APPARATUS 有权
公开(公告)号：US20220260934A1
公开(公告)日：2022-08-18
申请号：US17567880
申请日：2022-01-03
申请人： FUJI ELECTRIC CO., LTD.
发明人： Fengqiang ZHU , Shinjiro SUZUKI , Masaru TAKEUCHI , Kazuki NEBASHI
IPC分类号： G03G5/14 , G03G5/05
摘要： Provided are an electrophotographic photoconductor that is less likely to cause transfer ghosting even when mounted in an electrophotographic apparatus with high transfer voltage set for high-speed or cleanerless processes, as well as a method of manufacturing the electrophotographic photoconductor, and an electrophotographic apparatus. The electrophotographic photoconductor includes a conductive substrate; an undercoat layer provided on the conductive substrate, and a photosensitive layer provided on the undercoat layer. In the electrophotographic photoconductor, the undercoat layer contains a resin binder and a first filler; and the first filler contains zinc oxide particles that are surface-treated with an N-acylated amino acid or an N-acylated amino acid salt.

3. 发明申请

US20200301294A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PRODUCTION METHOD THEREOF, AND ELECTROPHOTOGRAPHIC APPARATUS 审中-公开
公开(公告)号：US20200301294A1
公开(公告)日：2020-09-24
申请号：US16775854
申请日：2020-01-29
申请人： FUJI ELECTRIC CO., LTD.
发明人： Fengqiang ZHU , Tomoki HASEGAWA , Shinjiro SUZUKI , Masaru TAKEUCHI
IPC分类号： G03G5/047 , G03G5/05 , G03G5/087 , G03G15/00
摘要： An electrophotographic photoreceptor includes an electroconductive substrate; and a photosensitive layer that is formed on the electroconductive substrate and that contains an inorganic oxide and a lubricant resin. When light having a wavelength of 780 nm is irradiated onto a slurry containing 20% by mass of the inorganic oxide in a predetermined solvent to provide an inorganic oxide slurry, the inorganic oxide slurry has a luminous transmittance that is 40% or more. The photosensitive layer may be a negatively-charged laminate-type photosensitive layer, a monolayer type photosensitive layer, or a positively-charged laminate-type photosensitive layer. The electrophotographic photoreceptor is less worn upon long-term use, allows no filming, and can realize stable images. A method for producing the electrophotographic photoreceptor and an electrophotographic apparatus including the electrophotographic photoreceptor are disclosed.

4. 发明申请

US20200026206A1 PHOTOSENSITIVE BODY FOR ELECTROPHOTOGRAPHY, METHOD FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPHIC DEVICE INCLUDING THE SAME 审中-公开
公开(公告)号：US20200026206A1
公开(公告)日：2020-01-23
申请号：US16588251
申请日：2019-09-30
申请人： FUJI ELECTRIC CO., LTD.
发明人： Hirotaka KOBAYASHI , Yutaka IKEDA , Yuji OGAWA , Masaru TAKEUCHI
IPC分类号： G03G5/047 , G03G15/18 , G03G15/08 , G03G5/06 , G03G5/147
摘要： The present invention provides an electrophotographic photoreceptor including a photosensitive layer containing an electron transport material, and having high pressure resistance and suppressed occurrence of a leak phenomenon, a method for producing the same, and an electrophotographic device using the same. The electrophotographic photoreceptor includes an electrically conductive support containing an aluminum alloy; an anodic oxide film formed on a surface of the electrically conductive support; and a photosensitive layer formed on the anodic oxide film. The photosensitive layer contains an electron transport material having an electron mobility of 10−7 cm2/V/sec or more when field intensity is set to 20 V/μm. The surface of the electrically conductive support having the anodic oxide film formed thereon has an admittance value that is 25 μS or more and 60 μS or less.

5. 发明申请

US20190163077A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING SAME, AND ELECTROPHOTOGRAPHIC APPARATUS USING SAME 审中-公开
公开(公告)号：US20190163077A1
公开(公告)日：2019-05-30
申请号：US16264184
申请日：2019-01-31
申请人： FUJI ELECTRIC CO., LTD.
发明人： Masaru TAKEUCHI , Hirotaka KOBAYASHI , Toshiki OBINATA , Fengqiang ZHU
IPC分类号： G03G5/05 , G03G15/00 , G03G5/06
摘要： An electrophotographic photoreceptor of a negatively-chargeable laminate-type includes a conductive substrate; a charge generation layer provided on the conductive substrate and including a charge generating material; and a charge transport layer provided on the charge generation layer and containing, as a binder resin, a copolymerized polycarbonate resin having a repeating unit represented by Formula (1); as a hole transporting substance, a compound having a structure represented by Formula (2); as an electron transporting substance, a compound having a structure represented by Formula (3), and, as an antioxidant, a compound represented by Structural Formula (4), where a mass ratio H/(B+H) represents a ratio of mass (H) of the hole transporting substance with respect to a sum of mass (B) of the binder resin and the mass (H) of the hole transporting substance, and satisfies Formula (5), 20% by mass≤H/(B+H)≤35% by mass.

6. 发明公开

US20240094649A1 ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD OF MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC APPARATUS 审中-公开
公开(公告)号：US20240094649A1
公开(公告)日：2024-03-21
申请号：US18176192
申请日：2023-02-28
申请人： FUJI ELECTRIC CO., LTD.
发明人： Fengqiang ZHU , Shinjiro SUZUKI , Masaru TAKEUCHI
IPC分类号： G03G5/14 , G03G5/047 , G03G5/06
CPC分类号： G03G5/144 , G03G5/047 , G03G5/0696
摘要： An electrophotographic photoconductor including a sequentially-provided conductive substrate, an undercoat layer, and a photosensitive layer. Photosensitive layer is a negatively-charged stacked type including a charge generation layer and a charge transport layer. Undercoat layer contains a resin binder and a first filler, the first filler including a zinc oxide particle surface-treated with an N-acylated amino acid or an N-acylated amino acid salt, and the charge generation layer containing an adduct compound of titanyl phthalocyanine and butanediol.

7. 发明申请

US20210271179A1 ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD OF MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC DEVICE 有权
公开(公告)号：US20210271179A1
公开(公告)日：2021-09-02
申请号：US17162334
申请日：2021-01-29
申请人： FUJI ELECTRIC CO., LTD.
发明人： Shinjiro SUZUKI , Fengqiang ZHU , Masaru TAKEUCHI , Tomoki HASEGAWA
IPC分类号： G03G5/047 , G03G5/06 , G03G5/05
摘要： Provided are an electrophotographic photoconductor being resistant to abrasion even in long-term use, having highly sensitive electric characteristics, being capable of maintaining a high retention rate, and being capable of providing a stable image without filming, a method of manufacturing the same, and an electrophotographic device. The photoconductor includes an electroconductive substrate (1), a charge generation layer (3), and a charge transport layer (4); the charge transport layer contains a hole transport material, a resin binder, an electron transport material, and an inorganic oxide; the charge generation layer contains a charge generation material; the masses of the hole transport material, the resin binder, the electron transport material, and the inorganic oxide in the charge transport layer respectively denoted by a to d satisfy 1.5≤b/a≤5.7, 0.005≤c/a≤0.35, 0.05≤d/a≤0.70, a≥c+d, and c/d≥0.01; the hole transport material contains a compound expressed by formula (A-1); and the charge generation material contains titanyl phthalocyanine having an exothermic peak at 251±5° C., a half-value width of the exothermic peak equal to or less than 15° C., and a heating value equal to or greater than 1.0 mJ/mg when a temperature rise condition is 20° C./min in differential scanning calorimetry, and having an X-ray diffraction peak at 27.2±0.3°.

8. 发明申请

US20170146916A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC APPARATUS COMPRISING THE SAME, AND PACKAGE OF ELECTROPHOTOGRAPHIC PHOTORECEPTOR 有权
公开(公告)号：US20170146916A1
公开(公告)日：2017-05-25
申请号：US15279874
申请日：2016-09-29
申请人： FUJI ELECTRIC CO., LTD.
发明人： Masaru TAKEUCHI , Hirotaka KOBAYASHI , Toshiki OBINATA , Toshiki TAKEUCHI
IPC分类号： G03G15/00
CPC分类号： G03G5/0631 , G03G5/047 , G03G5/0609 , G03G5/0612 , G03G5/0614 , G03G5/0618 , G03G5/0635 , G03G5/0648 , G03G5/14704 , G03G5/14721
摘要： In a negatively-chargeable laminate-type electrophotographic photoreceptor, a charge generation layer and another charge transport layer are arranged on a conductive substrate directly or via an intermediate layer. The charge transport layer contains at least a hole-transporting substance, an electron-transporting substance and a binder resin; the mass ratio (RPN) [% by mass] between mass (P) of the hole-transporting substance and mass (N) of the electron-transporting substance is represented by the following equation (1), and satisfies the following equation (2): RPN=(N/(P+N))×100 (1) 1≦RPN≦40 (2); and when a voltage of +6 kV is applied to the photoreceptor for 5 seconds via a resin sheet having a thickness of 50 μm and a surface resistivity of 2×107 Ω/cm2, the surface potential difference (ΔVo) and half-tone potential difference (ΔVh) between before and after the voltage application are both 15 V or less.

9. 发明申请

US20160223922A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND IMAGE FORMING APPARATUS USING SAME 审中-公开
标题翻译：电子感光成像和图像形成装置使用相同
公开(公告)号：US20160223922A1
公开(公告)日：2016-08-04
申请号：US15068530
申请日：2016-03-11
申请人： FUJI ELECTRIC CO., LTD.
发明人： Masaru TAKEUCHI , Ikuo TAKAKI , Shinjiro SUZUKI , Hiroshi EMORI
IPC分类号： G03G15/00
CPC分类号： G03G5/047 , G03G5/14 , G03G5/142 , G03G5/144
摘要： An electrophotographic photosensitive member capable of preventing the occurrence of interference fringe patterns when the member is installed in a device using coherent light as exposure light, without exerting a negative influence on electric characteristics, is disclosed. The electrophotographic photosensitive member includes an electrically conductive substrate; a photosensitive layer provided on the electrically conductive substrate; and an intermediate layer interposed between the photosensitive layer and the electrically conductive substrate. The intermediate layer is composed of a cyanine dye having a maximum absorption wavelength within a range of exposure light source wavelength of ±50 nm; metal oxide fine particles; and a thermosetting resin as a binder resin. The photosensitive layer may be a laminated photosensitive layer including a charge generating layer and a charge transport layer. An image forming apparatus that includes the electrophotographic photosensitive member is also disclosed.
摘要翻译：公开了一种电子照相感光构件，其能够防止当将构件安装在使用相干光的装置中作为曝光光时出现干涉条纹图案，而不会对电特性产生负面影响。电子照相感光构件包括导电基底; 设置在所述导电基板上的感光层; 以及介于感光层和导电性基板之间的中间层。中间层由曝光光源波长为±50nm范围内的最大吸收波长的花青染料构成; 金属氧化物微粒; 和作为粘合剂树脂的热固性树脂。感光层可以是包括电荷产生层和电荷输送层的层叠感光层。还公开了一种包括电子照相感光构件的图像形成装置。

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