公开(公告)号：US5958638A

公开(公告)日：1999-09-28

申请号：US99039

申请日：1998-06-18

申请人： Satoshi Katayama ,  Takahiro Teramoto ,  Kiyofumi Morimoto ,  Satoshi Machino ,  Tatsuhiro Morita ,  Tomoko Kanazawa

发明人： Satoshi Katayama ,  Takahiro Teramoto ,  Kiyofumi Morimoto ,  Satoshi Machino ,  Tatsuhiro Morita ,  Tomoko Kanazawa

IPC分类号： G03G5/06 ,  G03G5/14

CPC分类号： G03G5/0659 ,  G03G5/142 ,  G03G5/144

摘要： An object of the invention is to provide an electrophotographic photoconductor featuring uniform chargeability to a predetermined potential, low residual potential and excellent stability in the operating environment and repeated use thereof, as well as a method of producing the same. An undercoat layer between a substrate and a photosensitive layer is formed by the use of a coating fluid for undercoat layer containing a coupling agent having an unsaturated bond, a metal oxide, a binder and a mixture solvent. The coupling agent increases affinity of the metal oxide for the binder so that the coating fluid does not suffer the aggregation of the metal oxide or gelation thereof, presenting homogeneity and excellent can-stability. Thus is obtained a uniform undercoat layer. A photoconductor having this undercoat layer is adapted to be uniformly charged to a predetermined potential and to suppress the rise of residual potential and particularly the rise of residual potential due to a use thereof under low-temperature, low-humidity conditions or the repeated use thereof over an extended period of time, thus offering a high photosensitivity in a stable manner.

摘要翻译： 本发明的一个目的是提供一种电子照相感光体及其制造方法，该电子照相感光体具有预定电位的均匀带电性，低残留电位和优异的操作环境稳定性及其重复使用。 通过使用含有具有不饱和键的偶联剂，金属氧化物，粘合剂和混合溶剂的底涂层用涂布液，形成基材和感光层之间的底涂层。 偶联剂增加金属氧化物对粘合剂的亲和力，使得涂布液不会发生金属氧化物的凝集或其凝胶化，具有均匀性和优异的罐稳定性。 得到均匀的底涂层。 具有该底涂层的感光体适于均匀地充电至预定电位，并且抑制残留电位的上升，特别是由于在低温，低湿度条件下使用而导致的残留电位的上升，或者其重复使用 延长时间，从而以稳定的方式提供高光敏性。

公开(公告)号：US5952146A

公开(公告)日：1999-09-14

申请号：US994546

申请日：1997-12-19

申请人： Satoshi Machino ,  Kazushige Morita ,  Kiyofumi Morimoto ,  Satoshi Katayama ,  Tomoko Kanazawa ,  Makoto Kurokawa

发明人： Satoshi Machino ,  Kazushige Morita ,  Kiyofumi Morimoto ,  Satoshi Katayama ,  Tomoko Kanazawa ,  Makoto Kurokawa

IPC分类号： G03G5/00 ,  G03G5/05 ,  G03G5/06

CPC分类号： G03G5/0525 ,  G03G5/0514

摘要： An object of the present invention is to improve the storage stability of a coating liquid for forming a photosensitive layer of a photosensitive member for electrophotography as well as to improve the electrophotography properties of a photosensitive member produced by applying the coating liquid. A photosensitive member for electrophotography is produced by applying a coating liquid composition for a photosensitive member for electrophotography prepared by dissolving or dispersing an organic photoconductive compound and a binder resin in a solvent, and further containing an aliphatic unsaturated hydrocarbon on an electroconductive substrate, and drying for forming a photosensitive layer on the electroconductive substrate.

摘要翻译： 本发明的一个目的是提高用于形成用于电子照相的光敏元件的感光层的涂布液的储存稳定性，并且改善通过涂布涂布液产生的感光元件的电子照相特性。 电子照相用感光体是通过将有机光电导性化合物和粘合剂树脂溶解或分散在溶剂中而进一步含有脂肪族不饱和烃而进行电子照相用感光性成分的涂布液组合物， 用于在导电基底上形成感光层。

公开(公告)号：US6136484A

公开(公告)日：2000-10-24

申请号：US322926

申请日：1999-06-01

申请人： Satoshi Katayama ,  Yoshihide Shimoda ,  Makoto Kurokawa ,  Mikio Kakui ,  Hiroko Ishibashi ,  Tadashi Nakamura ,  Tatsuhiro Morita ,  Masayuki Sakamoto ,  Kazushige Morita ,  Tomoko Kanazawa ,  Akihiko Kawahara

发明人： Satoshi Katayama ,  Yoshihide Shimoda ,  Makoto Kurokawa ,  Mikio Kakui ,  Hiroko Ishibashi ,  Tadashi Nakamura ,  Tatsuhiro Morita ,  Masayuki Sakamoto ,  Kazushige Morita ,  Tomoko Kanazawa ,  Akihiko Kawahara

IPC分类号： G03G5/06 ,  G03G5/14

CPC分类号： G03G5/142 ,  G03G5/0696 ,  G03G5/144

摘要： Highly sensitive and highly durable electrophotographic photoreceptors which generate faultless images can be produced by forming the under-coating layer on the conductive support and forming the photoreceptive layer on the layer. The under-coating layer contains dendritic titanium oxide. The under-coating layer contains the dendritic titanium oxide of which the surface is coated with (a) metal oxide(s) and/or (an) organic compound(s). The photoreceptive layer contains a phthalocyanine pigment, and the under-coating layer contains dendritic or needle-like titanium oxide of which the surface is coated with (a) metal oxide(s) and/or (an) organic compound(s). The photoreceptive layer contains a phthalocyanine pigment, and the under-coating layer contains dendritic or needle-like titanium oxide, of which the surface is coated with (a) metal oxide(s) and/or (an) organic compound(s), and an alcohol soluble polyamide resin.

摘要翻译： 产生无故障图像的高度敏感和高度耐用的电子照相感光体可以通过在导电支撑上形成底涂层并在该层上形成感光层来制备。 底涂层含有树枝状氧化钛。 底涂层含有表面被（a）金属氧化物和/或（有机化合物）涂覆的树枝状氧化钛。 感光层含有酞菁颜料，底涂层含有表面涂有（a）金属氧化物和/或（有机化合物）的树枝状或针状氧化钛。 感光层含有酞菁颜料，底涂层含有树枝状或针状氧化钛，其表面被（a）金属氧化物和/或（有机化合物）涂覆， 和醇溶性聚酰胺树脂。

公开(公告)号：US6136485A

公开(公告)日：2000-10-24

申请号：US188342

申请日：1998-11-09

申请人： Kazuya Ishida ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita ,  Tomoko Kanazawa

发明人： Kazuya Ishida ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita ,  Tomoko Kanazawa

IPC分类号： G03G5/05 ,  C08K3/22 ,  C08L29/14 ,  G03G5/14

CPC分类号： G03G5/144 ,  G03G5/142

摘要： The object of the invention is to provide a highly characteristic and lesser defective image using an electrophotographic photoreceptor which can be produced with a better coating property and which is highly sensitive and hardly loses the electrostatic stability during repeated use. A water-soluble or water/alcohol-soluble polyvinyl acetal and an inorganic pigment are involved in an underlayer provided between a conductive support and a photoconductive layer. Particularly, it is favorable to use titanium oxide as the inorganic pigment, make the ratio of polyvinyl acetal/titanium oxide 1/9-9/1 by weight, make the underlayer 0.5-5 .mu.m in thickness, use the titanium oxide of which the surface is treated with alumina, use the titanium oxide of which the titanium oxide component is 95% by weight or lower and of which the surface is treated with alumina, use the polyvinyl acetal of which the sodium ion concentration is 40 ppm or lower, and use the photo-conductive layer which contains a vinyl chloride-vinyl acetate type copolymer. As for a dispersing medium for coating the underlayer, water/alcohol=1/9-7/3 (ratio by weight) is selected. The aforementioned photoreceptor is applied to an image-forming apparatus using an inversion development process.

摘要翻译： 本发明的目的是提供一种使用电子照相感光体的高度特征和较小的缺陷图像，该电子照相感光体可以以更好的涂层性能制造，并且在反复使用中高度敏感并且几乎不损失静电稳定性。 水溶性或水/醇可溶性聚乙烯醇缩醛和无机颜料参与设置在导电载体和光电导层之间的底层。 特别是，优选使用氧化钛作为无机颜料，使聚乙烯醇缩醛/氧化钛的比例为1 / 9-9 / 1，使底层的厚度为0.5-5μm，使用其中的氧化钛 用氧化铝处理表面，使用氧化钛成分为95重量％以下的氧化钛，其表面用氧化铝处理，使用钠离子浓度为40ppm以下的聚乙烯醇缩醛， 并使用含有氯乙烯 - 乙酸乙烯酯型共聚物的光导层。 对于用于涂覆底层的分散介质，选择水/醇= 1 / 9-7 / 3（重量比）。 使用反转显影处理将上述感光体应用于图像形成装置。

公开(公告)号：US6054237A

公开(公告)日：2000-04-25

申请号：US210785

申请日：1998-12-15

申请人： Kazuya Ishida ,  Kiyofumi Morimoto ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita

发明人： Kazuya Ishida ,  Kiyofumi Morimoto ,  Satoshi Katayama ,  Takahiro Teramoto ,  Akihiko Kawahara ,  Kazushige Morita

IPC分类号： G03G5/00 ,  C08K5/56 ,  C08L27/06 ,  C08L31/04 ,  G03G5/05 ,  G03G5/06

CPC分类号： G03G5/0539 ,  G03G5/0542 ,  G03G5/0696

摘要： An object of the invention is to provide a highly characteristic image using an electrophotographic photoreceptor of which a charge-generating layer can be produced with a better coating property and which is highly sensitive and electrostatically highly stable in repeated use. The charge-generating layer of a function-separated type photoreceptor contains a n-type non-metallic phthalocyanine and a copolymer of vinyl chloride-vinyl acetate type. Particularly, the ratio of the .tau.-type non-metallic phthalocyanine to the copolymer of vinyl chloride-vinyl acetate type is fixed at 1/3-3/1 by weight. The thickness of the charge-generating layer is fixed at 0.1-0.6 .mu.m. As the copolymer of vinyl chloride-vinyl acetate type, copolymers of vinyl chloride-vinyl acetate, vinyl chloride-vinyl acetate-maleic acid, or vinyl chloride-vinyl acetate-vinyl alcohol are selected. Particularly, it is favorable to select those containing at least 10% by weight of the vinyl alcohol component. The charge-generating layer is formed with a liquid coating material using a ketone solvent as dispersant. The aforementioned photoreceptor is applied to an image-forming apparatus using an inversion development process.

摘要翻译： 本发明的目的是提供使用电子照相感光体的高度特征的图像，其中可以制备具有更好涂层性能的电荷产生层，并且其在重复使用中是高度敏感的和静电性高度稳定的。 功能分离型感光体的电荷产生层含有n型非金属酞菁和氯乙烯 - 乙酸乙烯酯类共聚物。 特别地，将T型非金属酞菁与氯乙烯 - 乙酸乙烯酯类共聚物的比例固定为1 / 3-3 / 1重量比。 电荷产生层的厚度固定在0.1-0.6μm。 作为氯乙烯 - 乙酸乙烯酯型共聚物，选择氯乙烯 - 乙酸乙烯酯，氯乙烯 - 乙酸乙烯酯 - 马来酸或氯乙烯 - 乙酸乙烯酯 - 乙烯醇的共聚物。 特别地，选择含有至少10重量％的乙烯醇组分的那些。 电荷产生层由使用酮溶剂作为分散剂的液体涂料形成。 使用反转显影处理将上述感光体应用于图像形成装置。

公开(公告)号：US06696214B2

公开(公告)日：2004-02-24

申请号：US10336761

申请日：2003-01-06

申请人： Satoshi Katayama ,  Mikio Kakui ,  Masayuki Sakamoto ,  Tatsuhiro Morita ,  Sayaka Fujita ,  Tadashi Nakamura

发明人： Satoshi Katayama ,  Mikio Kakui ,  Masayuki Sakamoto ,  Tatsuhiro Morita ,  Sayaka Fujita ,  Tadashi Nakamura

IPC分类号： G03G5047

CPC分类号： G03G5/0696 ,  G03G5/144

摘要： The invention provides an electrophotographic photoreceptor, in which suppression of image defects and high sensitivity are compatible, and a method for production thereof. The invention also provides a coating fluid for forming a photosensitive layer and a method for production thereof, as well as an image-forming apparatus using said electrophoto-graphic photoreceptor. Briefly, the electrophoto-graphic photoreceptors may be constructed by forming an undercoating layer on a conductive support, and then forming a photosensitive layer on the undercoating layer. The undercoating layer contains titanium oxide particles in at least either needle shape or dendrite shape. The photosensitive layer contains an electric charge-generating material of which the primary particle size and cohesive particle size are in a range of 0.01 &mgr;m-10 &mgr;m. Accordingly, in the electrophotographic photoreceptors, it is possible to maintain high sensitivity and excellent durability and to form an image with no defect. The photosensitive layer in the electrophotographic photoreceptor has a multilayer structure consisting of a charge-generating layer and a charge-transporting layer. The charge-generating material is a phthalocyanine pigment.

摘要翻译： 本发明提供一种电子照相感光体及其制造方法，其中图像缺陷的抑制和高灵敏度相容。 本发明还提供了用于形成感光层的涂布液及其制造方法，以及使用所述电子照相感光体的图像形成装置。 简而言之，电子照相感光体可以通过在导电载体上形成底涂层，然后在底涂层上形成感光层来构造。 底涂层含有至少针状或枝晶形状的氧化钛粒子。 感光层含有一次粒径和粘性粒径在0.01μm〜10μm的范围内的电荷产生材料。 因此，在电子照相感光体中，可以保持高灵敏度和优异的耐久性，并形成没有缺陷的图像。 电子照相感光体中的感光层具有由电荷产生层和电荷输送层组成的多层结构。 电荷产生材料是酞菁颜料。

公开(公告)号：US08709690B2

公开(公告)日：2014-04-29

申请号：US12841397

申请日：2010-07-22

申请人： Tomomi Nakamura ,  Satoshi Katayama

发明人： Tomomi Nakamura ,  Satoshi Katayama

IPC分类号： G03G15/00

CPC分类号： G03G5/0696 ,  G03G5/0571 ,  G03G5/144 ,  G03G15/75

摘要： A photoreceptor comprising an undercoat layer between a conductive support and a photosensitive layer, wherein the undercoat layer contains at least metal oxide microparticles coated with anhydrous silicon dioxide and a first binder resin, the photosensitive layer is a monolayered photosensitive layer containing at least a charge generation material and a charge transport material or a multilayered photosensitive layer formed of a charge generation layer containing a charge generation material and a charge transport layer containing a charge transport material stacked in this order or in an inverse order, and the charge generation material contains a crystal type oxotitanylphthalocyanine having peaks in an X-ray diffraction spectrum with Cu—Kα characteristic X-rays (0.15418 nm) at Bragg angles (2θ±0.2°) of 7.3°, 9.4°, 9.6°, 11.6°, 13.3°, 17.9°, 24.1° and 27.2°, in which a peak bundle formed by overlapping the peaks at 9.4° and 9.6° is a largest peak, and the peak at 27.2° is a second largest peak; and an X-type metal-free phthalocyanine having peaks in the X-ray diffraction spectrum at Bragg angles (2θ±0.2°) of 7.5°, 9.1°, 16.7°, 17.3° and 22.3°.

摘要翻译： 一种感光体，其在导电性支持体和感光层之间具有底涂层，其中，底涂层至少含有被无水二氧化硅覆盖的金属氧化物微粒和第一粘合剂树脂，感光层为至少含有电荷产生的单层感光层 材料和电荷传输材料或由包含电荷产生材料的电荷产生层和包含电荷输送材料的电荷输送材料构成的多层感光层，其中电荷输送材料按顺序或顺序堆叠，电荷产生材料含有晶体 在具有Cu-Kα特征X射线（0.15418nm）的X射线衍射光谱中具有7.3°，9.4°，9.6°，11.6°，13.3°，17.9°的布拉格角（2θ;±0.2°）处具有峰值的氧代钛氧基酞菁 °，24.1°和27.2°，其中通过重叠9.4°和9.6°的峰形成的峰值束是最大峰值，峰值 在27.2°是第二大峰; 以及在布拉格角（2θ=±0.2°）为7.5°，9.1°，16.7°，17.3°和22.3°的X射线衍射光谱中具有峰值的X型无金属酞菁。

公开(公告)号：US08252557B2

公开(公告)日：2012-08-28

申请号：US12998494

申请日：2009-10-27

申请人： Satoshi Katayama ,  Shouhei Kishishita ,  Kunihiko Kodaira ,  Makoto Sadamitsu ,  Yoshinori Takagi ,  Hiroki Matsuda

发明人： Satoshi Katayama ,  Shouhei Kishishita ,  Kunihiko Kodaira ,  Makoto Sadamitsu ,  Yoshinori Takagi ,  Hiroki Matsuda

IPC分类号： C12P21/04 ,  C12N5/00

CPC分类号： C12P21/02 ,  C07K5/081 ,  C07K5/0812 ,  C07K16/00 ,  C07K16/303 ,  C07K2317/24 ,  C12N5/0037 ,  C12N2501/998 ,  C12N2510/02

摘要： Disclosed is a culture medium for culturing an animal cell, which is characterized by containing a peptide comprising, as a constituent unit, an amino acid residue selected from the amino acid group consisting of serine, tyrosine and cysteine. The culture medium is suitable for the high level production of a protein by an animal cell.

摘要翻译： 公开了一种用于培养动物细胞的培养基，其特征在于含有包含选自丝氨酸，酪氨酸和半胱氨酸的氨基酸的氨基酸残基作为构成单元的肽。 培养基适合于通过动物细胞高水平生产蛋白质。

公开(公告)号：US20120123054A1

公开(公告)日：2012-05-17

申请号：US13296630

申请日：2011-11-15

申请人： Kazuaki Matsumoto ,  Satoshi Katayama

发明人： Kazuaki Matsumoto ,  Satoshi Katayama

IPC分类号： C08K3/38 ,  C08K3/22 ,  C08K3/10

CPC分类号： C08K3/38 ,  C08K3/013 ,  C08K3/22 ,  C08K5/5442

摘要： A curable resin composition containing: (A) an organic compound containing in a molecule at least two carbon-carbon double-bonds having reactivity with a SiH group; (B) a compound containing in a molecule at least two SiH groups; and (C) a heat-conductive filler, which is at least one species selected from the group consisting of a-alumina, hexagonal boron nitride, aluminum nitride and zinc oxide, and is a particle wherein a primary particle has a number average particle diameter of at least 0.10 μm, wherein heat conductivity after curing is at least 0.8 W/mK.

摘要翻译： 一种固化性树脂组合物，其含有：（A）在分子中含有至少两个与SiH基具有反应性的碳 - 碳双键的有机化合物; （B）分子中含有至少两个SiH基团的化合物; 和（C）导热填料，其为选自由α-氧化铝，六方氮化硼，氮化铝和氧化锌组成的组中的至少一种，并且是一次粒子的数均粒径 至少0.10μm，其中固化后的热导率为至少0.8W / m·K。

公开(公告)号：US20110104600A1

公开(公告)日：2011-05-05

申请号：US12914151

申请日：2010-10-28

申请人： Takahiro Kurauchi ,  Satoshi Katayama ,  Koichi Toriyama

发明人： Takahiro Kurauchi ,  Satoshi Katayama ,  Koichi Toriyama

IPC分类号： G03G15/00

CPC分类号： G03G5/144 ,  G03G5/0614 ,  G03G15/75

摘要： A function separation type electrophotographic photoconductor comprising: a conductive support; an undercoat layer formed on the conductive support; a charge generation layer formed on the undercoat layer; and a charge transfer layer formed on the charge generation layer, the undercoat layer containing at least a binder resin and metal oxide microparticles subjected to surface treatment with anhydrous silicon dioxide, the charge transfer layer containing at least a binder resin and an enamine compound represented by the following general formula (1): wherein one or more of R1, R2, R3, R4 and R5 represent a C6-C10 aryl group that may have a substituent; the others each represent hydrogen atom or C1-C4 alkyl, C4-C9 heterocyclic, C7-C16 aralkyl or C11-C16 arylidene alkyl group that may have a substituent; or R2 and R3 together with carbon atoms with which they are combined may form a cyclic or condensed cyclic group that may have a substituent.

摘要翻译： 一种功能分离型电子照相感光体，包括：导电性支持体; 形成在导电支撑体上的底涂层; 形成在底涂层上的电荷产生层; 以及形成在电荷产生层上的电荷转移层，至少含有粘合剂树脂的底涂层和用无水二氧化硅进行表面处理的金属氧化物微粒，电荷转移层至少含有粘合剂树脂和由 以下通式（1）：其中R 1，R 2，R 3，R 4和R 5中的一个或多个表示可以具有取代基的C 6 -C 10芳基; 其余各自表示氢原子或可具有取代基的C 1 -C 4烷基，C 4 -C 9杂环，C 7 -C 16芳烷基或C 11 -C 16亚芳基烷基; 或者R 2和R 3与它们所组合的碳原子一起形成可以具有取代基的环状或稠合的环状基团。