公开(公告)号：JP2014222279A

公开(公告)日：2014-11-27

申请号：JP2013101505

申请日：2013-05-13

Applicant: シャープ株式会社 ,  Sharp Corp

Inventor： FUKUSHIMA KOTARO ,  TORIYAMA KOICHI ,  OBATA TAKATSUGU ,  NAKANO NOBUHIKO

IPC: G03G5/00

Abstract: 【課題】耐摩耗性に優れており、良好な分散性と良好な電気特性とを両立した電子写真感光体を提供する。【解決手段】下記の第1工程および第2工程によって、電子写真感光体の表面層を形成する。第1工程では、テトラフルオロエチレンモノマーとアセトンとの混合溶液に電離性放射線を照射することによって前記テトラフルオロエチレンモノマーを重合させて、前記混合溶液をゲル状態のポリテトラフルオロエチレンのアセトン溶媒分散系とし、前記ゲル状態になった前記アセトン分散系にも前記電離性放射線を照射することによって、前記アセトン溶媒分散系のポリテトラフルオロエチレンを架橋する。第2工程では、架橋されたポリテトラフルオロエチレンの粒子と結着樹脂とを少なくとも原料として前記表面層を形成する。【選択図】なし

Abstract translation: 要解决的问题：提供具有优异的耐磨性并且具有良好的分散性和良好的电特性的电子照相感光体。解决方案：在以下第一和第二步骤中形成电子照相感光体的表面层。 在第一步中，用电离辐射照射四氟乙烯单体和丙酮的混合溶液以聚合四氟乙烯单体，以将混合溶液制备成凝胶状态的聚四氟乙烯的丙酮溶剂分散体系; 并进一步用电离辐射照射呈凝胶状态的丙酮溶剂分散体系，使丙酮溶剂分散体系中的聚四氟乙烯交联。 在第二步骤中，通过使用交联的聚四氟乙烯和粘合剂树脂的至少颗粒作为原料，形成表面层。

公开(公告)号：JP2013186400A

公开(公告)日：2013-09-19

申请号：JP2012053183

申请日：2012-03-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KONDO AKIHIRO ,  OBATA TAKATSUGU

IPC: G03G5/06 ,  G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide a highly reliable electrophotographic photoreceptor that does not cause an adverse effect such as partial crystallization during film formation, has high charge potential, has high sensitivity, exhibits sufficient light responsiveness, has excellent durability, prevents a reduction in those properties even when used in a low-temperature environment or in a high-speed process, and prevents a reduction in those properties even when exposed to light.SOLUTION: A photosensitive layer contains a dienamino biphenyl compound having a saturated ring structure represented by the general formula (I) as a charge transport material.

Abstract translation: 要解决的问题：为了提供不会在成膜期间产生部分结晶的不利影响的高度可靠的电子照相感光体，具有高电荷电位，具有高灵敏度，显示出足够的光响应性，具有优异的耐久性，防止那些 特性即使在低温环境或高速工艺中使用，也能防止即使暴露在光下也能降低这些性能。解决方案：感光层含有一般具有饱和环结构的二氨基联苯化合物 式（I）作为电荷传输材料。

公开(公告)号：JP2011013550A

公开(公告)日：2011-01-20

申请号：JP2009158860

申请日：2009-07-03

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KONDO AKIHIRO ,  OBATA TAKATSUGU

IPC: G03G5/14 ,  G03G5/00 ,  G03G5/06

Abstract: PROBLEM TO BE SOLVED: To provide a high-reliability photoreceptor which aims at reducing environmental loads improving production stability in a photoreceptor manufacturing process and ensures little variation in sensitivity by environmental dependence, exhibits high responsiveness even in a low-temperature and low-humidity environment, is compact, has a high image forming speed, and provides a high-quality image even in an environment such as a low-temperature and low-humidity one, and to provide an image forming apparatus including the photoreceptor.SOLUTION: The electrophotographic photoreceptor includes an intermediate layer between a conductive support and a photosensitive layer. The intermediate layer is a layer formed through heat curing from a coating liquid for an intermediate layer comprising a blocked isocyanate compound, a resin having an active hydrogen-containing group for reacting with an isocyanate group in the blocked isocyanate compound, and an aqueous medium. The photosensitive layer is a single layer type photosensitive layer containing a charge generating material and a charge transport material, or a laminate type photosensitive layer formed by stacking a charge generating layer containing a charge generating material and a charge transport layer containing a charge transport material in this order or in the converse order, wherein the charge transport material is a triphenylamine-diene or triene compound into which a cyclic saturated structure has been introduced.

Abstract translation: 要解决的问题：为了提供一种高可靠性感光体，其旨在降低环境负荷，提高感光体制造工艺中的生产稳定性，并且通过环境依赖性确保灵敏度几乎没有变化，即使在低温和低湿度环境中也显示出高反应性 ，是紧凑的，具有高的图像形成速度，并且即使在诸如低温和低湿度的环境中也提供高质量的图像，并且提供包括感光体的图像形成装置。解决方案：电子照相感光体 包括在导电载体和感光层之间的中间层。 中间层是通过从包含封端异氰酸酯化合物的中间层的涂布液和在封端异氰酸酯化合物中与异氰酸酯基反应的含活性氢基团的树脂和水性介质通过热固化形成的层。 感光层是含有电荷产生材料和电荷输送材料的单层型感光层，或层叠型感光层，其通过层叠含有电荷产生材料的电荷产生层和含有电荷输送材料的电荷输送层而形成 该顺序或相反的顺序，其中电荷输送材料是其中引入了环状饱和结构的三苯胺 - 二烯或三烯化合物。

公开(公告)号：JP2010164945A

公开(公告)日：2010-07-29

申请号：JP2009234379

申请日：2009-10-08

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OBATA TAKATSUGU ,  KONDO AKIHIRO ,  YAMANAKA TAKAYUKI

IPC: G03G5/00 ,  G03G5/047 ,  G03G5/06 ,  G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide a highly reliable electrophotographic photosensitive member reducing a load in environment in a photosensitive member manufacturing process, achieving high stability in production, preventing the occurrence of fluctuation of sensitivity depending on environment, and providing a high quality image without defect in image such as memory image, and also to provide an image forming device equipped with it. SOLUTION: In this electrophotographic photosensitive member, an intermediate layer is provided between an electrical conductive support body and a photosensitive layer and is formed after it is heat hardened from a coating liquid for the intermediate layer including a block isocyanate compound, a resin having two groups containing active hydrogen reacting with isocyanate group in the block isocyanate compound or more, inorganic oxide particulates, and an aqueous medium. The photosensitive layer is a monolayer photosensitive layer containing at least an electric charge generating substance and an electric charge transport substance or a laminated photosensitive layer constituted by laminating an electric charge generating layer containing the electric charge generating substance and an electric charge transport layer containing the electric charge transport substance in this order or in the reverse order. The electric charge generating substance is oxotitanium phthalocyanine having a crystal structure. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供在感光构件制造工艺中减小环境中的负载的高度可靠的电子照相感光构件，实现高生产稳定性，防止根据环境的灵敏度的波动的发生，并且提供高质量 图像中没有缺陷的图像，例如存储器图像，并且还提供配备有它的图像形成装置。 解决方案：在该电子照相感光构件中，在导电性支撑体和感光层之间设置中间层，并且在从包含嵌段异氰酸酯化合物的中间层用涂布液热固化后形成树脂 具有在嵌段异氰酸酯化合物中含有与异氰酸酯基反应的活性氢的两个以上的基团，无机氧化物微粒和水性介质。 感光层是至少含有电荷产生物质和电荷输送物质的单层感光层，或者是层叠含有电荷产生物质的电荷产生层和含有电荷输送物质的电荷输送层构成的层叠感光层 电荷运输物质按此顺序或相反的顺序。 电荷产生物质是具有晶体结构的氧钛酞菁。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010113005A

公开(公告)日：2010-05-20

申请号：JP2008283261

申请日：2008-11-04

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OBATA TAKATSUGU ,  KONDO AKIHIRO ,  YAMANAKA TAKAYUKI

IPC: G03G5/14

Abstract: PROBLEM TO BE SOLVED: To provide a coating solution for the intermediate layer of a photosensitive body having an organic photosensitive layer using water having the smallest environmental load as a solvent and also having excellent stability of liquid physical properties with the lapse of time also in production, to provide a photosensitive body having the intermediate layer formed using the same and having excellent repeating properties and environmental stability, and to provide an image forming apparatus provided therewith. SOLUTION: The coating solution for the intermediate layer of an electrophotographic photosensitive body having an organic photosensitive layer includes: a block isocyanate compound; a resin having two or more active hydrogen-containing groups capable of reacting with an isocyanate group in the block isocyanate compound; and a water base medium. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了使用具有最小环境负荷的水作为溶剂的具有有机感光层的感光体的中间层的涂布溶液，并且随着时间的流逝也具有优异的液体物理性质的稳定性 也在生产中提供具有使用该中间层形成的中间层并且具有优异的重复性和环境稳定性的感光体，并且提供了一种提供其的图像形成装置。 解决方案：具有有机感光层的电子照相感光体的中间层用涂布液包括：嵌段异氰酸酯化合物; 具有能够与嵌段异氰酸酯化合物中的异氰酸酯基反应的具有两个以上的含活性氢基团的树脂; 和水基介质。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009151105A

公开(公告)日：2009-07-09

申请号：JP2007329004

申请日：2007-12-20

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： FUKUSHIMA KOTARO ,  OBATA TAKATSUGU ,  KIHARA AKIKO

IPC: G03G5/06 ,  G03G5/047 ,  G03G5/05 ,  G03G5/147

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which has excellent sensitivity characteristics and enables to stably form a high-resolution image.
SOLUTION: The electrophotographic photoreceptor has a photosensitive layer on a conductive substrate, wherein the electrophotographic photoreceptor is a photoreceptor capable of writing with light having an oscillation wavelength in a wavelength range of 360-420 nm, the photosensitive layer contains a crystal-form oxotitanyl phthalocyanine, and the crystal-form oxotitanyl phthalocyanine shows, in an X-ray diffraction spectrum, the highest diffraction peak at a Bragg angle (2θ±0.2°) of 9.4° or 9.7° and also shows at least diffraction peaks at 7.3°, 9.4°, 9.7° and 27.3°.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有优异的灵敏度特性并能够稳定地形成高分辨率图像的电子照相感光体。 电子照相感光体在导电性基材上具有感光层，电子照相感光体是能够以360-420nm的波长范围的振荡波长的光书写的感光体，感光层含有结晶 - 形成氧代钛氧基酞菁，结晶形式的氧代钛基酞菁在X射线衍射光谱中显示布拉格角（2θ±0.2°）为9.4°或9.7°的最高衍射峰，并且至少在7.3处显示衍射峰 °，9.4°，9.7°和27.3°。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009139643A

公开(公告)日：2009-06-25

申请号：JP2007316059

申请日：2007-12-06

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIHARA AKIKO ,  FUKUSHIMA KOTARO ,  OBATA TAKATSUGU ,  KONDO AKIHIRO

IPC: G03G5/06 ,  G03G5/14

CPC classification number: G03G5/0614 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0696

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is suitable for a short wavelength semiconductor laser capable of obtaining high resolution images.
SOLUTION: This electrophotographic photoreceptor has a high sensitivity to the semiconductor laser beam of a wavelength of 380-500 nm, and the charge transfer layer of its laminated photosensitive layer contains a triarylamindimer compound shown in general formula (1) as the charge transfer material. Further, its photosensitive layer film is 30 μm thick or thinner.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供适用于能够获得高分辨率图像的短波长半导体激光器的电子照相感光体。 解决方案：该电子照相感光体对波长380-500nm的半导体激光束具有高灵敏度，其层叠感光层的电荷转移层含有通式（1）所示的三芳基茚基化合物作为电荷 转移材料。 此外，其感光层膜的厚度为30μm或更薄。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009025647A

公开(公告)日：2009-02-05

申请号：JP2007189891

申请日：2007-07-20

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIHARA AKIKO ,  KONDO AKIHIRO ,  OBATA TAKATSUGU

IPC: G03G5/14 ,  G03G5/05

Abstract: PROBLEM TO BE SOLVED: To provide a new diamine compound that can be used for providing a photoreceptor having an excellent effect of resistance against oxidative gas and having no damage on other characteristics and to provide an image forming apparatus equipped with the photoreceptor. SOLUTION: The electrophotographic photoreceptor comprises successively deposited layers of a base layer and a single-layer type photosensitive layer containing a charge generating substance and a charge transporting substance or a layered type photosensitive layer having a charge generating layer containing a charge generating substance and a charge transporting layer containing a charge transporting substance layered in this order, on a conductive support made of a conductive material, wherein the base layer contains a specified diamine compound. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种新的二胺化合物，其可用于提供具有优异的抗氧化气体效果的感光体，并且不会对其它特性造成损害，并提供配备有感光体的图像形成装置。 解决方案：电子照相感光体包括依次沉积的基层和含有电荷产生物质和电荷输送物质的单层型感光层，或具有含电荷产生物质的电荷产生层的层状感光层 以及含有电荷传输物质的电荷传输层，其中所述电荷传输物质依次层叠在由导电材料制成的导电性载体上，其中所述基底层含有特定的二胺化合物。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008165082A

公开(公告)日：2008-07-17

申请号：JP2006356818

申请日：2006-12-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OBATA TAKATSUGU ,  KONDO AKIHIRO

IPC: G03G5/06 ,  G03G5/047 ,  G03G5/14

CPC classification number: G03G5/0614 ,  G03G5/0668 ,  G03G5/0672 ,  G03G2215/00957

Abstract: PROBLEM TO BE SOLVED: To provide a highly reliable electrophotographic photoreceptor with high charged potential which is of high responsiveness, and excels in durability, and shows ample optical responsiveness, and of which the characteristics do not deteriorate, even when used under a low-temperature environment or used in a high-speed process, and to provide an image forming device that uses the electrophotographic photoreceptor. SOLUTION: The electrophotographic photoreceptor has a compound having each of two enamine structures and stilbene structures, or butadiene structures in a molecule represented by general Formula (1) and is superior in charge transport ability, in a photosensitive layer as a charge transport material. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供具有高反应性和耐久性优异的高电荷电位的高度可靠的电子照相感光体，并且显示出充分的光学响应性，并且其特性不劣化，即使在 低温环境或用于高速工艺，并提供使用电子照相感光体的图像形成装置。 解决方案：电子照相感光体具有在通式（1）表示的分子中具有两种烯胺结构和二苯乙烯结构或丁二烯结构的化合物，并且在作为电荷输送的感光层中电荷传输能力优异 材料。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006337545A

公开(公告)日：2006-12-14

申请号：JP2005159795

申请日：2005-05-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： OBATA TAKATSUGU ,  KONDO AKIHIRO

IPC: G03G5/05

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a film covered substrate by which a smooth film free from pinholes, bubbles, surface unevenness, etc., can easily be formed in a short period of time. SOLUTION: A film 6 is formed on a substrate 5 by applying a coating liquid containing photosensitive layer forming materials and a solvent in which a solvent whose relative evaporation rate represented by following expression (1) is COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决的问题：提供一种薄膜覆盖基板的制造方法，能够在短时间内容易地形成没有针孔，气泡，表面凹凸等的光滑膜。 解决方案：通过涂布含有感光层形成材料的涂布液和溶剂，在基材5上形成膜6，其中以下列表达式（1）表示的相对蒸发速率<1.7的溶剂的含量为 ≥30重量％; 表达式（1）：（相对蒸发速率）=（乙酸正丁酯蒸发的时间）/（溶剂蒸发的时间）。 使用干燥装置1，通过感应加热装置2将基板5加热至60-150℃，然后通过远红外加热装置3加热来干燥薄膜6来制造目标薄膜覆盖基板。版权所有： （C）2007，JPO＆INPIT