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公开(公告)号：US20230125171A1
公开(公告)日：2023-04-27
申请号：US17906259
申请日：2021-03-25
申请人： Tomoharu ASANO , Hidetoshi Kami , Ryota Inoue
发明人： Tomoharu ASANO , Hidetoshi Kami , Ryota Inoue
摘要： Metal oxide particles have p-type semiconductivity. The metal oxide particles have a volume-based particle size distribution having a first local maximum value and a second local maximum value. The first local maximum value is in a range of 0.1 μm or more and less than 5 μm, and the second local maximum value is in a range of 5 μm or more and less than 50 μm. A ratio of the second local maximum value to the first local maximum value is 0.5 or more and less than 2.0. 99% by volume or more of the metal oxide particles have a particle diameter in a range of from 0.1 to 50 μm.
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公开(公告)号：US20220342327A1
公开(公告)日：2022-10-27
申请号：US17753668
申请日：2020-07-21
申请人： Hidetoshi Kami , Tomoharu Asano , Masayuki Ishii , Ryota Inoue
发明人： Hidetoshi Kami , Tomoharu Asano , Masayuki Ishii , Ryota Inoue
摘要： An electronic device includes: a support; a charge-transporting layer including a charge-transporting material, or a sensitizing-dye electrode layer including a sensitizing dye, where the charge-transporting layer or the sensitizing-dye electrode layer is disposed on or above the support; and a metal oxide layer disposed on or above the charge-transporting layer or the sensitizing-dye electrode layer. The metal oxide layer includes p-type semiconductor metal oxide and silica or metal oxide particles, and an amount of the silica or metal oxide particles included in the metal oxide layer is 0.5% by mass or greater but 1.5% by mass or less, relative to the metal oxide layer.
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公开(公告)号：US20220140284A1
公开(公告)日：2022-05-05
申请号：US17431471
申请日：2020-01-31
申请人： Hidetoshi Kami , Tomoharu Asano
发明人： Hidetoshi Kami , Tomoharu Asano
摘要： A photoelectric conversion element includes a support, a photoelectric conversion layer, an undercoat layer, and a surface layer; where the photoelectric conversion layer, the undercoat layer, and the surface layer are disposed on or above the support in this order. The surface layer is a ceramic film, and the undercoat layer includes a siloxane resin.
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公开(公告)号：US10114302B2
公开(公告)日：2018-10-30
申请号：US15590047
申请日：2017-05-09
申请人： Ryohta Takahashi , Akihiro Sugino , Eiji Kurimoto , Hidetoshi Kami , Keisuke Shimoyama , Tetsuro Suzuki , Tomoharu Asano , Toshihiro Ishida
发明人： Ryohta Takahashi , Akihiro Sugino , Eiji Kurimoto , Hidetoshi Kami , Keisuke Shimoyama , Tetsuro Suzuki , Tomoharu Asano , Toshihiro Ishida
摘要： A photoconductor is provided. The photoconductor includes a support, an undercoat layer overlying the support, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a binder resin and a zinc oxide particle. The photosensitive layer includes a compound represented by the following formula (1): where each of R1 and R2 independently represents an alkyl group or an aromatic hydrocarbon group.
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公开(公告)号：US10545417B1
公开(公告)日：2020-01-28
申请号：US16445973
申请日：2019-06-19
申请人： Hidetoshi Kami , Tomoharu Asano
发明人： Hidetoshi Kami , Tomoharu Asano
摘要： An electrophotographic photoconductor is provided. The electrophotographic photoconductor includes a conductive substrate, a photosensitive layer, and a surface layer containing fluororesin particles, non-fluororesin particles, and a cured resin. The fluororesin particles have an average particle diameter of from 0.01 to 0.3 μm in a cross-sectional image of the surface layer as observed by a scanning electron microscope with a magnification of 5,000 times, and when the cross-sectional image is segmented into uniform regions each being 1 μm×4 μm, a standard deviation of areas each of which is occupied by the fluororesin particles and the non-fluororesin particles in each of the regions is 0.2 μm2 or less.
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公开(公告)号：US20140234763A1
公开(公告)日：2014-08-21
申请号：US14174279
申请日：2014-02-06
申请人： Akihiro SUGINO , Keisuke Shimoyama , Tomoharu Asano , Hidetoshi Kami , Nobutaka Eguchi , Kazuhiro Egawa , Tomoyuki Shimada , Ryota Arai , Masayoshi Nomura
发明人： Akihiro SUGINO , Keisuke Shimoyama , Tomoharu Asano , Hidetoshi Kami , Nobutaka Eguchi , Kazuhiro Egawa , Tomoyuki Shimada , Ryota Arai , Masayoshi Nomura
CPC分类号： G03G21/0094
摘要： An image forming apparatus includes an image bearing member having a photosensitive layer and a sub-surface layer having a charge transportability, overlying the photosensitive layer wherein the sub-surface layer is formed of a cured material formed of a radical polymerizable monomer having three or more functional groups with no charge transport structure and a radical polymerizable compound having a charge transport structure, wherein the arithmetical mean roughness WRa of about each of frequency components of HMH, HML, and HLH obtained by wavelet conversion of values measured by a surface texture and the contour form measuring device ranges from 0.0002 μm to 0.005 μm and WRa (LLH) is 0.05 μm or less, wherein the sub-surface layer contains at least one of a particular oxazole compound or a particular diamine compound.
摘要翻译： 图像形成装置包括具有感光层和具有电荷传输性的子表面层的图像承载部件，覆盖在感光层上，其中所述子表面层由具有三个或更多个自由基聚合单体形成的固化材料形成 没有电荷传输结构的官能团和具有电荷传输结构的自由基聚合性化合物，其中，通过由表面纹理测量的值通过小波变换获得的大约HMH，HML和HLH的每个频率分量的算术平均粗糙度WRa和 轮廓形状测量装置的范围为0.0002μm至0.005μm，WRa（LLH）为0.05μm以下，其中，所述表面下层含有特定的恶唑化合物或特定的二胺化合物中的至少一种。
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公开(公告)号：US10416594B2
公开(公告)日：2019-09-17
申请号：US15703805
申请日：2017-09-13
摘要： An image forming method includes forming an image with a toner using a photoconductor in which an intermediate layer and a photosensitive layer including a charge generating layer and a charge transport layer are formed overlying an electroconductive substrate, wherein the ionization potential of the surface of the photoconductor and the ionization potential of the surface of the toner satisfy the following relations 1 and 2, |Ip (the surface of the photoconductor)−Ip (the surface of the toner)|≤0.18 (eV) Relation 1 5.45 (eV)≤Ip (the surface of the photoconductor)≤5.53 (eV) Relation 2 where Ip (the surface of the photoconductor) represents the ionization potential of the surface of the photoconductor and Ip (the surface of the toner) represents the ionization potential of the surface of the toner.
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8.发明授权公开(公告)号：US09740116B2
公开(公告)日：2017-08-22
申请号：US15055024
申请日：2016-02-26
摘要： A photoconductor includes an electroconductive substrate; an intermediate layer overlying the electroconductive substrate; and a photosensitive layer overlying the intermediate layer. The intermediate layer includes a metal oxide particle and a binder resin, and satisfies the following relations (1) and (2): Smr=Scut/Sk (1) 0.4≦Smr≦0.6 (2) where Smr represents an areal ratio of concave parts; Sk represents a reference area; and a Scut represents a cross-sectional area obtained by cutting a three-dimensional curved surface obtained from the reference area with an average height surface, the average height surface being a surface constituted of averaged height of all measured height data.
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9.发明授权Electrophotographic photoconductor, method for producing electrophotographic photoconductor, and image forming apparatus 有权电子照相感光体，电子照相感光体的制造方法以及成像装置公开(公告)号：US08557487B2
公开(公告)日：2013-10-15
申请号：US12892526
申请日：2010-09-28
申请人： Hidetoshi Kami , Kazuhiro Egawa
发明人： Hidetoshi Kami , Kazuhiro Egawa
IPC分类号： G03G5/00
CPC分类号： G03G5/0614 , G03G5/0525 , G03G5/071 , G03G5/147 , G03G5/14704 , G03G5/14734 , G03G5/14791 , G03G15/75 , G03G21/0005
摘要： To provide an electrophotographic photoconductor including: a conductive substrate; a photosensitive layer; and a surface layer having grooves which do not intersect each other, the photosensitive layer and the surface layer being laid over the conductive substrate, wherein the grooves each have a width of 60 μm to 100 μm and a depth of 0.2 μm to 2 μm, wherein the standard deviation of the depths of the grooves is 1/10 or less of the average value of the depths of the grooves measured at any four places, and wherein the grooves are formed in a direction which diagonally crosses a main scanning direction and a sub-scanning direction of the electrophotographic photoconductor.
摘要翻译： 提供一种电子照相感光体，包括：导电性基材; 感光层; 以及具有不相交的凹槽的表面层，所述感光层和所述表面层铺设在所述导电基底上，其中所述凹槽各自具有60μm至100μm的宽度和0.2μm至2μm的深度， 其特征在于，所述槽的深度的标准偏差是在任意四个位置测量的槽的深度的平均值的1/10以下，并且其中所述槽沿与主扫描方向对角地交叉的方向形成， 电子照相感光体的副扫描方向。
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10.发明申请公开(公告)号：US20100172670A1
公开(公告)日：2010-07-08
申请号：US12641704
申请日：2009-12-18
CPC分类号： G03G5/071 , G03G5/0525 , G03G5/0596 , G03G5/0614 , G03G5/147 , G03G5/14734 , G03G15/751 , G03G2215/00957
摘要： An electrophotographic photoreceptor, including an electroconductive substrate; a photosensitive layer, located overlying the electroconductive substrate; and an outermost layer comprising a convexity, wherein each of the outermost layer and the convexity includes a crosslinked body including a structural unit having a same charge transportable structure, and wherein the number of convexity having a height not less than ½×RzJIS is from 30 to 300 in a measurement length of 12 mm, wherein RzJIS is an average of ten-point mean roughness specified in JIS B0601 of 2001 and measured at least 4 random positions in an area the outermost layer is formed on, and wherein the height of the convexity is a distance from the deepest valley to a top of the convexity in the measurement length of 12 mm.
摘要翻译： 电子照相感光体，包括导电性基材; 位于导电基底上的感光层; 以及包含凸部的最外层，其中，所述最外层和所述凸部中的每一个包括具有相同电荷传输结构的结构单元的交联体，并且其中具有不小于1/2×RzJIS的高度的凸度的数量为30 至300，测量长度为12mm，其中RzJIS是2001年JIS B0601中规定的十点平均粗糙度的平均值，并且在形成最外层的区域中测量至少4个随机位置，并且其中 凸度是距离最深谷到测量长度为12mm的凸度顶部的距离。
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