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    Block copy sheet for lithographic printing plate
    2.
    发明授权
    Block copy sheet for lithographic printing plate 失效
    平版印刷版块复印件

    公开(公告)号：US06484634B1

    公开(公告)日：2002-11-26

    申请号：US09652790

    申请日：2000-08-31

    申请人： Seishi Kasai ,  Takao Nakayama ,  Hiroyuki Ohishi

    发明人： Seishi Kasai ,  Takao Nakayama ,  Hiroyuki Ohishi

    IPC分类号： G03F711

    CPC分类号： B41N6/00

    摘要： A block copy sheet for lithographic printing plate to be interposed between a plate cylinder and a lithographic printing plate having a front surface and a back surface, at least the back surface being made of a material other than metals, wherein the block copy sheet have convex portions provided on a surface thereof, the convex portions having a predetermined shape so as to concave the back surface of the lithographic printing plate when pressed against the back surface of the lithographic printing plate, and wherein (1) the convex portions comprises a composite particle having protrusions provided on the surface thereof and having a hardness greater than that of the back surface of the lithographic printing plate and a particle diameter of from 1 &mgr;m to 100 &mgr;m, or (2) the convex portions comprises non-spherical fillers having an average length of from 1 &mgr;m to 200 &mgr;m and the contact area of the convex portions and the back surface of the lithographic printing plate is from 0.6% to 3.0% of the area of the back surface of the lithographic printing plate.

    摘要翻译： 一种用于平版印刷版的块复印片，其被插入在印版滚筒和具有前表面和后表面的平版印刷版之间，至少后表面由金属以外的材料制成，其中块状复印片具有凸面 设置在其表面上的部分，凸起部分具有预定的形状，以在压靠平版印刷版的背面时凹入平版印刷版的背面，并且其中（1）凸部包括复合颗粒 具有设置在其表面上并且具有大于平版印刷版的背面的硬度和1μm至100μm的粒径的突起，或（2）凸部包括具有平均值的非球形填料 长度为1〜200μm，平版印刷版的凸部和背面的接触面积为0.6〜 平版印刷版的背面面积的3.0％。

    Method of producing lithographic printing plate
    3.
    发明授权
    Method of producing lithographic printing plate 失效
    平版印刷版的制作方法

    公开(公告)号：US06420091B1

    公开(公告)日：2002-07-16

    申请号：US09679351

    申请日：2000-10-05

    申请人： Takao Nakayama ,  Satoshi Hoshi ,  Nobufumi Mori ,  Takashi Nakamura

    发明人： Takao Nakayama ,  Satoshi Hoshi ,  Nobufumi Mori ,  Takashi Nakamura

    IPC分类号： G03F709

    CPC分类号： B41C1/1041 ,  Y10S430/145 ,  Y10S430/146 ,  Y10S430/165

    摘要： A method of producing a lithographic printing plate which comprises subjecting a printing plate precursor comprising a support having a metallic compound layer which has a photo-catalytic property and a hydrophilic surface and bears light-heat convertible minute particles on the surface thereof to imagewise irradiation of heat mode to convert polarity of the metallic compound layer, thereby forming an imagewise hydrophobic region. The lithographic printing plate can be repeatedly employed.

    摘要翻译： 一种平版印刷版的制造方法，其特征在于，对具有具有光催化性的金属化合物层的支持体和亲水性表面的印刷版原版进行曝光，并在其表面上承载光热可转换微小颗粒， 加热模式以转换金属化合物层的极性，从而形成图像疏水区域。 可以重复使用平版印刷版。

    Process for producing lithographic printing plate
    4.
    发明授权
    Process for producing lithographic printing plate 失效
    平版印刷版生产工艺

    公开(公告)号：US06207332B1

    公开(公告)日：2001-03-27

    申请号：US08988282

    申请日：1997-12-10

    申请人： Takao Nakayama ,  Shigeyuki Dan ,  Ryousuke Itakura ,  Hideyuki Hattori ,  Hiroshi Tashiro

    发明人： Takao Nakayama ,  Shigeyuki Dan ,  Ryousuke Itakura ,  Hideyuki Hattori ,  Hiroshi Tashiro

    IPC分类号： G03G1302

    CPC分类号： G03G13/28 ,  G03G5/10 ,  G03G13/02 ,  Y10S430/102

    摘要： A process for producing a lithographic printing plate which is inexpensive, is not elongated, can be readily handled and can provide a uniform image, is disclosed. The process comprises the steps of: using an original plate for lithographic printing comprising a support having a volume electric resistance of more than 1×1010 &OHgr;·cm, a conductive layer having a volume electric resistance of 1×105 &OHgr;·cm or less, provided on one surface of the support, and a photoconductive layer containing zinc oxide and a binder, provided on the conductive layer, conducting negative corona discharge from the side of the photoconductive layer of the original plate for lithographic printing, and during this corona discharge, contacting a conductor having earth potential with at least the support of the original plate, thereby charging the photoconductive layer of the original plate for lithographic printing.

    摘要翻译： 公开了一种制造廉价的未拉伸的平版印刷版的方法，可以容易地处理并且可以提供均匀的图像。 该方法包括以下步骤：使用原版平版印刷，其中包括体积电阻大于1×10 10欧米汞厘米的载体，具有体积电阻为1×10 5欧姆·厘米或更小的导电层，设置在一个表面上 的载体和包含氧化锌和粘合剂的光电导层，设置在导电层上，从用于平版印刷的原版的光电导层侧进行负电晕放电，并且在该电晕放电期间，接触具有接地的导体 至少具有原版支撑的电位，从而对原版的光电导层充电以进行平版印刷。

    Liquid developing method and apparatus for electrophotography, and electrodes therefor
    7.
    发明授权
    Liquid developing method and apparatus for electrophotography, and electrodes therefor 失效
    用于电子照相术的液体显影方法和装置及其电极

    公开(公告)号：US5081499A

    公开(公告)日：1992-01-14

    申请号：US337224

    申请日：1989-04-12

    申请人： Sho Nakao ,  Chikashi Ohishi ,  Chiaki Kawamoto ,  Takao Nakayama ,  Hidefumi Sera

    发明人： Sho Nakao ,  Chikashi Ohishi ,  Chiaki Kawamoto ,  Takao Nakayama ,  Hidefumi Sera

    IPC分类号： G03G15/10

    CPC分类号： G03G15/10

    摘要： A liquid electrophotographic development method where electrodes are arranged only on the side of the photosensitive layer of a master, developing liquid is supplied between the master and the electrodes, and conductors are made to come into contact with the base of the master so that an electric field is generated between the photosensitive plane and the electrodes for development. The electrode to be used for the electrophotographic development method includes conductive wires of a plural number which are arranged in the direction perpendicular to the traveling direction of the material so as to come into contact with the conductive base thereof. If the electrodes are utilized, a main electrode needs to be arranged only on the side of the photosensitive layer of the master, and developing liquid is supplied therebetween. The electrode is adapted to come into contact with the conductive base of the master, to thereby generate an electric field between the main electrode and the electrode. Therefore, the master can be directly injected with electrons instead of indirect injection, and adhesion of toner scum which often was caused in the prior art can be avoided. This further eliminates the trouble of cleaning the electrodes to improve maintenance.

    摘要翻译： 液晶电子照相显影方法，其中电极仅布置在母版的感光层的一侧，显影液被供应在母体和电极之间，并且使导体与母版的基部接触，使得电 在感光平面和用于显影的电极之间产生场。 用于电子照相显影方法的电极包括多个导线，它们沿与材料的行进方向垂直的方向布置成与其导电基底接触。 如果使用电极，则主电极仅需要布置在母板的感光层的一侧，并且在其间供应显影液。 电极适于与母板的导电基底接触，从而在主电极和电极之间产生电场。 因此，主体可以直接注入电子而不是间接注入，并且可以避免在现有技术中经常引起的调色剂浮渣的粘附。 这进一步消除了清洁电极以改善维护的麻烦。

    Multicolor electrophotographic process using TiO.sub.2
    10.
    发明授权
    Multicolor electrophotographic process using TiO.sub.2 失效
    使用二氧化钛的多色电子照相工艺

    公开(公告)号：US4525441A

    公开(公告)日：1985-06-25

    申请号：US442973

    申请日：1982-11-19

    申请人： Kei Takahata ,  Sadao Murasawa ,  Hiroshi Ichida ,  Mizuho Okada ,  Takao Nakayama

    发明人： Kei Takahata ,  Sadao Murasawa ,  Hiroshi Ichida ,  Mizuho Okada ,  Takao Nakayama

    IPC分类号： G03G5/08 ,  G03G5/12 ,  G03G13/01 ,  G03G13/26 ,  G03G15/01

    CPC分类号： G03G13/01 ,  G03G5/12 ,  Y10S430/102

    摘要： In practicing multi-step reproduction of color image by electrophotography using an electrophotographic photosensitive material prepared by overlaying a photosensitive layer composed mainly of titanium dioxide and a binder on an electroconductive substrate, exposure to an optical image is first carried out, then positive corona charging is carried out to form a positive electrostatic latent image and subsequently developing is carried out. Further, prior to the exposure to an optical image, negative corona charging and/or AC corona charging are additionally carried out. By this electrophotographic process effectively utilizing the photomemory effect of titanium dioxide, multi-color images can be produced, and an image having good contrast can be reproduced easily and stably.

    摘要翻译： 在使用通过将主要由二氧化钛和粘合剂组成的感光层叠加在导电性基板上而制备的电子照相感光材料的电子照相法进行彩色图像的多步再现中，首先进行曝光到光学图像，然后正电荷充电 进行形成正的静电潜像，随后进行显影。 此外，在曝光到光学图像之前，另外进行负电晕充电和/或AC电晕充电。 通过该电子照相方法有效地利用二氧化钛的光记忆效应，可以产生多色图像，并且可以容易且稳定地再现具有良好对比度的图像。