公开(公告)号：US4996121A

公开(公告)日：1991-02-26

申请号：US293400

申请日：1989-01-04

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/055 ,  G03G5/0535 ,  G03G5/0542 ,  G03G5/0546 ,  G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic lithographic printing plate precursor comprising a conductive support having provided thereon at least one photoconductive layer containing photocondutive zinc oxide and a resin binder is disclosed, wherein the resin binder comprises at least one resin (A) containing at least one functional group capable of forming at least one hydroxyl group upon decomposition and at least one member selected from the group consisting of (B) a heat- and/or photo-curable resin and a crosslinking agent. Since the hydroxyl group formed in the resin (A) enhances hydrophilic properties of nonimage areas, the printing plate obtained from the precursor is resistant to background stains. This effect is further ensured by the crosslinked structure formed between the resin (A) and the resin (B) and/or a crosslinking agent.

公开(公告)号：US4987150A

公开(公告)日：1991-01-22

申请号：US210489

申请日：1988-06-23

申请人： Masayasu Kurono ,  Hidehumi Yamakawa ,  Takuya Koshizaka ,  Takehiko Suzuki ,  Eiichi Kato ,  Takafumi Iida ,  Nobuko Ohishi ,  Kunio Yagi

发明人： Masayasu Kurono ,  Hidehumi Yamakawa ,  Takuya Koshizaka ,  Takehiko Suzuki ,  Eiichi Kato ,  Takafumi Iida ,  Nobuko Ohishi ,  Kunio Yagi

IPC分类号： A61K31/35

CPC分类号： A61K31/35

摘要： An agent for inhibiting the binding of 5.alpha.-dihydrotestosterone with androgen receptor, which comprises at least one extract from herbs or one of specific xanthone compounds, and a process for obtaining the agent.

公开(公告)号：US4977049A

公开(公告)日：1990-12-11

申请号：US306418

申请日：1989-02-06

申请人： Eiichi Kato

发明人： Eiichi Kato

IPC分类号： B41N1/14 ,  G03G5/05 ,  G03G5/08 ,  G03G13/28

CPC分类号： G03G5/0589 ,  G03G5/0592

摘要： An electrophotographic lithographic printing plate precursor having an electrophotographic photoreceptor which has at least one photoconductive layer containing a photoconductive zinc oxide and a resin binder on a conductive support, wherein the resin binder contains at least one resin which has at least one functional group capable of forming at least one group selected from a thiol group, a phospho group, an amino group and a sulfo group by decomposition and at least a part of which has been crosslinked.

摘要翻译： 一种具有电子照相感光体的电子照相平版印刷版原版，其具有在导电性载体上具有含有光电导性氧化锌和树脂粘合剂的至少一层光电导层，其中，所述树脂粘合剂含有至少一种具有至少一个能够形成的官能团的树脂 选自硫醇基，磷酸基，氨基和磺基中的至少一个基团，并且其至少一部分已经交联。

公开(公告)号：US4971871A

公开(公告)日：1990-11-20

申请号：US303508

申请日：1989-01-30

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0592 ,  G03G5/0589

摘要： An electrophotographic lithographic printing plate precursor 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) at least one resin containing at least one functional group capable of forming at least one hydrophilic group selected from a thiol group, a phosphono group, an amino group, and a sulfo group upon decomposition and at least one of (B) a heat-curable and photo-curable resin and (C) a crosslinking agent. The printing plate precursor provides a printing plate exhibiting excellent resistance to background stains and printing durability.

摘要翻译： 一种电子照相平版印刷版原版，其包含导电性载体，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（A）至少一种至少含有至少一个能够形成的官能团的树脂 一种分解时选自硫醇基，膦酰基，氨基和磺基的亲水基团和（B）可热固化和光固化树脂和（C）交联剂中的至少一种。 印版前体提供了表现出优异的耐背景污渍和印刷耐久性的印版。

公开(公告)号：US4952475A

公开(公告)日：1990-08-28

申请号：US308240

申请日：1989-02-09

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： G03G5/05

CPC分类号： G03G5/0592 ,  G03G5/0589

摘要： An electrophotographic photoreceptor comprising a support having provided thereon at least one photoconductive layer containing at least inorganic photoconductive particles and a binder resin, is disclosed wherein said binder resin comprises (1) at least one resin (A) containing at least one acidic group selected from --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, and ##STR1## wherein R represents a hydrocarbon group, at the terminal of the polymer main chain thereof, and (2) at least one of a thermosetting resin (B) containing a crosslinking functional group and a crosslinking agent. The photoreceptor exhibits improved electrostatic characteristics. The photoreceptor provides an electrophotographic lithographic printing plate precursor which exhibits excellent image reproducibility irrespective of a variation of environmental condition at the time of electrophotographic processing and produces a printing plate having improved printing durability and causing no background stains.

摘要翻译： 公开了一种电子照相感光体，其包括在其上提供至少一个至少含有无机光电导颗粒和粘合剂树脂的光电导层的载体，其中所述粘合剂树脂包含（1）至少一种含有至少一个酸性基团的树脂（A） -PO 3 H 2，-SO 3 H，-COOH和其中R表示烃基，在其聚合物主链的末端，和（2）至少一种含有交联官能团的热固性树脂（B）和 交联剂。 感光体表现出改善的静电特性。 感光体提供了电子照相平版印刷版原版，其与电子照相处理时的环境条件的变化无关地显示优异的图像再现性，并且产生具有改善的印刷耐久性并且不产生背景污点的印刷版。

公开(公告)号：US4857431A

公开(公告)日：1989-08-15

申请号：US121250

申请日：1987-11-16

申请人： Eiichi Kato ,  Kazuo Ishii

发明人： Eiichi Kato ,  Kazuo Ishii

IPC分类号： C09B23/00 ,  C09B23/02 ,  C09K9/02 ,  G03G5/06 ,  G03G5/09

CPC分类号： G03G5/067 ,  G03G5/09

摘要： A photoconductive composition is disclosed, comprising at least an inorganic photoconductive material, a sensitizing dye and a resin binder wherein the sensitizing dye is a compound containing at least one acidic group in the molecule thereof as represented by the formula (I): ##STR1## wherein all the symbols are as defined in the appended claims.

摘要翻译： 公开了一种感光性组合物，其至少包含无机光电导材料，增感染料和树脂粘合剂，其中增感染料是其分子中至少含有一个由式（I）表示的酸性基团的化合物： （I），其中所有符号如所附权利要求中所定义。

公开(公告)号：US4842975A

公开(公告)日：1989-06-27

申请号：US136517

申请日：1987-12-22

申请人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Shigeyuki Dan ,  Hidefumi Sera

发明人： Eiichi Kato ,  Kazuo Ishii ,  Hiroshi Ishibashi ,  Shigeyuki Dan ,  Hidefumi Sera

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131

摘要： A liquid developer for electrostatic photography is described, comprising at least a resin dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 ohms.cm and a dielectric constant of not more than 3.5. The resin is a copolymer resin obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the non-aqueous solvent but becomes insoluble upon polymerization and at least one specified monomer (B) containing an aliphatic group having at least 8 carbon atoms and being copolymerizable with the monomer (A), in the presense of a resin not containing a grafting group polymerizable with the monomers and being soluble in the non-aqueous solvent. The resin may be colored by dissolving at least one organic dye in the dispersion of the resin and heating the mixture. The developer has excellent dispersion stability, redispersibility, fixability and preservability.

摘要翻译： 描述了用于静电摄影的液体显影剂，其至少包含分散在电阻至少为109欧姆·厘米且介电常数不大于3.5的非水溶剂中的树脂。 树脂是通过聚合含有至少一种可溶于非水溶剂但在聚合时变得不溶的单官能单体（A）的溶液和至少一种含至少一个具有至少一个脂族基团的特定单体（B）的溶液而获得的共聚物树脂 8个碳原子并且可与单体（A）共聚，在不含可与单体聚合并可溶于非水溶剂的接枝基团的树脂的存在下。 树脂可以通过将至少一种有机染料溶解在树脂的分散体中并加热混合物而着色。 显影剂具有优异的分散稳定性，再分散性，定影性和保存性。

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：US4665002A

公开(公告)日：1987-05-12

申请号：US772794

申请日：1985-09-05

申请人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

发明人： Shigeyuki Dan ,  Kazuo Ishii ,  Eiichi Kato ,  Hidefumi Sera

IPC分类号： C08F291/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  G03G9/12 ,  G03G9/13

CPC分类号： G03G9/131 ,  Y10S430/105

摘要： Disclosed is a liquid electrophotographic developer comprising a resin prepared by polymerizing selected monomers to provide a developer composition having good storage stability and redispersibility.

摘要翻译： 公开了包含通过聚合所选单体制备的树脂以提供具有良好的储存稳定性和再分散性的显影剂组合物的液体电子照相显影剂。

公开(公告)号：US4502984A

公开(公告)日：1985-03-05

申请号：US541568

申请日：1983-10-13

申请人： Eiichi Kato ,  Masataka Okamoto ,  Hiroshi Ueda ,  Masaharu Inaba

发明人： Eiichi Kato ,  Masataka Okamoto ,  Hiroshi Ueda ,  Masaharu Inaba

IPC分类号： G03G5/08 ,  H01B1/06

CPC分类号： G03G5/08 ,  Y10T428/31971

摘要： Electroconductive base sheet for electrostatic according which comprises an electroconductive layer containing both a metal oxide semiconductor of this invention and at least one substance selected from the group consisting of a reducing saccharide, a derivative thereof, ascorbic acid, an optical isomer of ascorbic acid and a reducing ascorbic acid derivative of this invention. The electroconductive base sheet provides a superior electroconductivity.

摘要翻译： 含有本发明的金属氧化物半导体的导电层和选自还原性糖类，衍生物，抗坏血酸，抗坏血酸的旋光异构体和抗坏血酸的至少一种物质的静电用导电性基材片 减少本发明的抗坏血酸衍生物。 导电基片提供优异的导电性。