公开(公告)号：US4929527A

公开(公告)日：1990-05-29

申请号：US185181

申请日：1988-04-22

申请人： Eiichi Kato ,  Shigeru Ohno ,  Kazuo Ishii ,  Ryosuke Itakura

发明人： Eiichi Kato ,  Shigeru Ohno ,  Kazuo Ishii ,  Ryosuke Itakura

IPC分类号： G03G5/05 ,  G03G5/06 ,  G03G5/09 ,  G03G15/04

CPC分类号： G03G5/067 ,  G03G5/0517 ,  G03G5/09

摘要： A photoconductive composition which exhibits excellent dark reduction retention, excellent sensitivity to radiation from the near infrared region to the infrared region as well as excellent long-term stability, is comprised of an inorganic photoconductor, a cyclic acid anhydride and a spectral sensitizing dye dispersed in a binding resin. A laser beam scanning exposure can be performed on said composition to produce electrophotographic images.

公开(公告)号：US4871638A

公开(公告)日：1989-10-03

申请号：US165949

申请日：1988-03-09

申请人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura

发明人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura

IPC分类号： G03G5/05

CPC分类号： G03G5/0589

摘要： An electrophotographic photosensitive material comprising a support having provided thereon a photoconductive layer containing at least an inorganic photoconductive material and a binder, wherein said binder comprises at least resin (A) having a weight average molecular weight of from 1.times.10.sup.3 to 1.times.10.sup.4 and containing from 0.05 to 20% by weight a copolymer component having at least one acid group selected from --PO.sub.3 H, --COOH, --SO.sub.3 H, --OH, --SH, and ##STR1## wherein R respresents a hydrocarbon group; and resin (B) having a weight average molecular weight of at least 3.times.10.sup.4, said resin (B) not containing the aforesaid acid group nor a basic group.

公开(公告)号：US4828952A

公开(公告)日：1989-05-09

申请号：US45998

申请日：1987-05-04

申请人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

IPC分类号： B41N1/14 ,  G03G5/05 ,  G03G13/28

CPC分类号： G03G5/0589 ,  G03G5/055

摘要： An electrophotographic printing plate precursor is disclosed, comprising a conductive support having provided thereo1 at least one photoconductive layer containing photoconductive zinc oxide and at least one resin binder, wherein said resin binder contains at least one functional group capable of forming at least one hydroxyl group and at least one carboxyl group upon decomposition. The printing plate precursor can reproduce an image faithful to an original and exhibits satisfactory surface smoothness and electrostatic characteristics. The printing plate produced from the precursor does not cause background stains and exhibits excellent printing durability.

摘要翻译： 公开了一种电子照相印版前体，其包括导电载体，其上设置有至少一个含有光电导氧化锌和至少一种树脂粘合剂的光电导层，其中所述树脂粘合剂含有至少一个能够形成至少一个羟基的官能团和 分解时至少有一个羧基。 印版前体可以再现忠实于原稿的图像，并且表现出令人满意的表面光滑度和静电特性。 由前体制成的印版不会引起背景污渍并且显示出优异的印刷耐久性。

公开(公告)号：US4792511A

公开(公告)日：1988-12-20

申请号：US025696

申请日：1987-03-13

申请人： Eiichi Kato ,  Ryosuke Itakura ,  Hidefumi Sera ,  Kazuo Ishii

发明人： Eiichi Kato ,  Ryosuke Itakura ,  Hidefumi Sera ,  Kazuo Ishii

IPC分类号： B41N1/14 ,  G03G5/05 ,  G03G13/28 ,  G03G5/087

CPC分类号： G03G5/0589

摘要： An electrophotographic lithographic printing plate precursor is disclosed, comprising a conductive support having provided thereon at least one photoconductive layer containing photoconductive zinc oxide and a resin binder, wherein said resin binder comprises a resin containing at least one functional group capable of forming a carboxylic acid upon being decomposed. The printing plate precursor forms an image faithful to an original and causes no background stains because of improved oil-insensitivity of non-image areas, and a printing plate obtained therefrom exhibits high stain resistance and printing durability.

摘要翻译： 公开了一种电子照相平版印刷版前体，其包含导电性载体，其上设置有至少一层含有光导氧化锌的光电导层和树脂粘合剂，其中所述树脂粘合剂包括含有至少一个能够形成羧酸的官能团的树脂 被分解。 由于非图像区域的油不敏感性提高，印版前体形成忠实于原稿的图像，并且不会产生背景污点，并且由其获得的印刷版显示出高耐污性和印刷耐久性。

公开(公告)号：US4929526A

公开(公告)日：1990-05-29

申请号：US319895

申请日：1989-03-07

申请人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Ryosuke Itakura ,  Hidefumi Sera

IPC分类号： G03G5/05

CPC分类号： G03G5/055 ,  G03G5/0589

摘要： An electrophotographic lithographic printing plate precursor obtained from an electrophotographic photoreceptor comprising a conductive support having provided thereon at least one photoconductive layer containing photoconductive zinc oxide and a resin binder, wherein said resin binder comprises a resin containing at least one functional group capable of forming at least one hydroxyl group upon being decomposed. The printing plate precursor exhibits high image reproducibility, stain resistance, and green preservability, and a printing plate obtained therefrom has high resistance to background stain and has printing durability.

摘要翻译： 由电子照相感光体获得的电子照相平版印刷版原版，其包含导电性支持体，其上设置有至少一层含有光导电氧化锌的光电导层和树脂粘合剂，其中所述树脂粘合剂包含含有至少一个能形成至少一个官能团的树脂 一个羟基被分解。 印版前体显示出高图像再现性，耐污染性和绿色保存性，并且由此得到的印刷版具有高抗背景污染性并具有印刷耐久性。

公开(公告)号：US5565290A

公开(公告)日：1996-10-15

申请号：US920862

申请日：1992-07-28

申请人： Ryosuke Itakura ,  Seishi Kasai ,  Hidefumi Sera ,  Eiichi Kato

发明人： Ryosuke Itakura ,  Seishi Kasai ,  Hidefumi Sera ,  Eiichi Kato

IPC分类号： B41N3/08 ,  G03G9/00

CPC分类号： B41N3/08

摘要： An amine compound-containing, but cyanogen-free, desensitizing solution for offset printing, characterized by containing phytic acid (inositol hexaphosphate) and/or a metal and/or ammonium salts of phytic acid, and at least one selected from the group consisting of amine compounds represented by the following general formulae (1) and (2); a carboxylic acid or carboxylate containing (3); an urea (5) and/or an urethane (6) containing (4); an amide compound represented by (8) and/or an imide compound (9), each containing an amino group (7); and a heterocyclic compound at least one nitrogen atom and having an inorganic/organic value of 0.1 to 4.0 inclusive. ##STR1##

摘要翻译： 一种含胺化合物的，但不含氰的，用于胶版印刷的脱敏溶液，其特征在于含有植酸（肌醇六磷酸）和/或植酸的金属和/或铵盐，以及选自以下的至少一种： 由以下通式（1）和（2）表示的胺化合物： 含有（3）的羧酸或羧酸酯; 含有（4）的尿素（5）和/或氨基甲酸酯（6）; 由（8）表示的酰胺化合物和/或酰亚胺化合物（9），各自含有氨基（7）; 和至少一个氮原子的杂环化合物，其无机/有机物含量为0.1〜4.0。 （1）R4NH2（2）（3）（4）（5）（6）

公开(公告)号：US06884557B2

公开(公告)日：2005-04-26

申请号：US10348410

申请日：2003-01-21

申请人： Seishi Kasai ,  Tadahiro Sorori ,  Ryosuke Itakura ,  Eiichi Kato

发明人： Seishi Kasai ,  Tadahiro Sorori ,  Ryosuke Itakura ,  Eiichi Kato

IPC分类号： B41N3/08 ,  G03G13/28 ,  G03G9/00

CPC分类号： B41N3/08 ,  G03G13/28 ,  G03G13/283

摘要： A desensitizing treatment liquid for offset printing plates, which contains a compound represented by formula (I) wherein φ represents —PO3H2, —OPO3H2, or the salt thereof and R1 represents an organic residue which may have a substituent. The desensitizing treatment liquid gives no problems to environmental pollution, is stable to the long-period storage and the continuous use, can shorten the etching treatment time, and is excellent in the desensitizing treatment ability as well as can provide an offset printing plate having a good reproducibility of highly minute images of a middle tone, screen tint, etc., and capable of printing without forming scumming at the non-image area.

摘要翻译： 一种胶版印刷用脱敏处理液，其含有式（I）表示的化合物，其中phi表示-PO 3 H 2 H 2，-OPO 3， H 2或其盐和R 1表示可以具有取代基的有机残基。 脱敏处理液对环境污染没有问题，对长期储存和连续使用是稳定的，可以缩短蚀刻处理时间，并且脱敏处理能力优异，并且可以提供具有 中等色调，丝网色调等高分辨率图像的重复性好，能够在非图像区域形成浮渣的情况下进行打印。

公开(公告)号：US5965660A

公开(公告)日：1999-10-12

申请号：US828967

申请日：1997-03-27

申请人： Seishi Kasai ,  Ryosuke Itakura ,  Eiichi Kato

发明人： Seishi Kasai ,  Ryosuke Itakura ,  Eiichi Kato

IPC分类号： B41N3/08 ,  G03G13/28 ,  C08L41/00

CPC分类号： G03G13/28 ,  B41N3/08

摘要： A desensitizing solution for lithography is disclosed which contains at least one member selected from acyclic amine and ammonium compounds each containing specific structures. The desensitizing solution does not cause environmental pollution, is stable to long-term storage, continuous use, and fluctuations in environmental conditions, is effective in reducing the time required for etching treatment, and has excellent desensitization performance.

摘要翻译： 公开了一种用于光刻的脱敏溶液，其包含至少一种选自各种含有特定结构的无环胺和铵化合物的成员。 脱敏溶液不会引起环境污染，对于长期储存，连续使用和环境条件的波动是稳定的，有效减少蚀刻处理所需的时间，并且具有优异的脱敏性能。

公开(公告)号：US5723239A

公开(公告)日：1998-03-03

申请号：US718949

申请日：1996-09-26

申请人： Ryosuke Itakura ,  Seishi Kasai ,  Hidefumi Sera ,  Eiichi Kato

发明人： Ryosuke Itakura ,  Seishi Kasai ,  Hidefumi Sera ,  Eiichi Kato

IPC分类号： B41N3/08 ,  G03G13/28

CPC分类号： B41N3/08

摘要： An amine compound-containing, but cyanogen-free, desensitizing solution for offset printing, characterized by containing phytic acid (inositol hexaphosphate) and/or a metal and/or ammonium salts of phytic acid, and at least one selected from the group consisting of amine compounds represented by the following general formulae (1) and (2); a carboxylic acid or carboxylate containing (3); an urea (5) and/or an urethane (6) containing (4); an amide compound represented by (8) and/or an imide compound (9), each containing an amino group (7); and a heterocyclic compound at least one nitrogen atom and having an inorganic/organic value of 0.1 to 4.0 inclusive. ##STR1##

公开(公告)号：US06470799B2

公开(公告)日：2002-10-29

申请号：US09818529

申请日：2001-03-28

申请人： Yusuke Nakazawa ,  Hideyuki Koguchi ,  Kazuo Ishii ,  Eiichi Kato

发明人： Yusuke Nakazawa ,  Hideyuki Koguchi ,  Kazuo Ishii ,  Eiichi Kato

IPC分类号： B41C110

CPC分类号： B41J2/06 ,  B41C1/1066 ,  B41J2002/012 ,  B41J2002/061

摘要： A method of computer-to-cylinder lithographic printing, comprising: loading a plate material on a rotative plate cylinder of a lithographic printing apparatus; rotating the plate cylinder having loaded thereon the plate material; forming an image directly onto the plate material by an inkjet image-recording process which comprises ejecting an oil-based ink from a recording head having a plurality of ejecting channels, based on image data signals, utilizing an electrostatic field, to prepare a printing plate; subsequently performing lithographic printing with the thus prepared printing plate, wherein the recording head is driven so that every n'th channel thereof is actuated in a common phase, and wherein the plate cylinder is rotated to give a surface rotational speed V (mm/sec) of the plate material as represented by the following formula: V=25.4×(f×n)/N wherein N represents a recording resolution (dots/25.4 mm) along a rotative direction of the plate cylinder on the plate material, and f represents a driving frequency f (Hz) of each ejecting channel of the recording head.

摘要翻译： 一种计算机对滚筒平版印刷的方法，包括：将平板印刷材料装载在平版印刷装置的旋转印版滚筒上; 旋转其上装有板材的印版滚筒; 通过喷墨图像记录方法将图像直接形成在板材上，其包括基于图像数据信号，利用静电场从具有多个喷射通道的记录头喷射油性油墨，以制备印刷板 ; 随后用如此制备的印版执行平版印刷，其中记录头被驱动，使得其第n个通道在公共相中被致动，并且其中印版滚筒旋转以提供表面旋转速度V（mm / sec ）如下式所示：其中N表示沿着板材上的印版滚筒的旋转方向的记录分辨率（点/ 25.4mm），f表示每个喷射的印刷滚筒的驱动频率f（Hz） 通道的记录头。