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81. 发明授权

US5084367A Electrophotographic photoreceptor 失效
公开(公告)号：US5084367A
公开(公告)日：1992-01-28
申请号：US384540
申请日：1989-07-25
申请人： Eiichi Kato , Kazuo Ishii
发明人： Eiichi Kato , Kazuo Ishii
IPC分类号： G03G5/05
CPC分类号： G03G5/0589 , G03G5/0535 , G03G5/0546 , G03G5/0592
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 (A) at least one resin having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and containing at least one polar group selected from --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, ##STR1## wherein R represents a hydrocarbon group or --OR'; and R' represents a hydrocarbon group, and a cyclic acid anhydride-containing group, and (B) at least one resin having a weight average molecular weight of 5.times.10.sup.4 or more and containing a crosslinked structure. The photoreceptor exhibits excellent electrostatic characteristics, image forming performance as well as printing suitability irrespective of change in environmental condition or the kind of sensitizing dyes to be used in combination with the photoreceptor.

82. 发明授权

US5073467A Electrophotographic photoreceptor 失效
标题翻译：电子照相机
公开(公告)号：US5073467A
公开(公告)日：1991-12-17
申请号：US420505
申请日：1989-10-11
申请人： Eiichi Kato , Kazuo Ishii
发明人： Eiichi Kato , Kazuo Ishii
IPC分类号： G03G5/05
CPC分类号： G03G5/0589 , G03G5/0592
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, wherein the binder resin comprises(A) at least one resin having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 with at least one substituent selected from the group consisting of (i) --PO.sub.3 H.sub.2, (ii) --SO.sub.3 H, (iii) --COOH, (iv) ##STR1## and (B) at least one copolymer resin comprising a monofunctional macromonomer and a monomer, said monofunctional macromonomer having a weight average molecular weight of not more than 2.times.10.sup.4, said macromonomer containing at least one polymerization component represented by formula (b-2) or (b-3): ##STR2## with a polymerizable double bond-containing group represented by formula (b-1) being bonded to only one of terminals of the main chain thereof, ##STR3## and said monomer is represented by formula (b-4): ##STR4## The photoreceptor exhibits excellent electrostatic characteristics, image formation as well as printing suitability irrespective of variations in environmental conditions or the kind of sensitizing dyes used in combination with the photoreceptor.

83. 发明授权

US5064737A Electrophotographic light-sensitive material 失效
标题翻译：电子照相感光材料
公开(公告)号：US5064737A
公开(公告)日：1991-11-12
申请号：US527397
申请日：1990-05-23
申请人： Eiichi Kato , Kazuo Ishii
发明人： Eiichi Kato , Kazuo Ishii
IPC分类号： G03G5/05
CPC分类号： G03G5/056 , G03G5/0589
摘要： An electrophotographic light-sensitive material is disclosed. The material comprises a support having formed thereon a photoconductive layer containing at least inorganic photoconductive particles and a binder resin, wherein the binder resin comprises at least one kind of a resin (A) and at least one kind of a resin (B) as defined in the specification.The electrophotographic light-sensitive material of the present invention has excellent electrostatic characteristics, moisture resistance and durability.
摘要翻译：公开了一种电子照相感光材料。该材料包括其上形成有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，其中粘合剂树脂包含至少一种树脂（A）和至少一种如所定义的树脂（B）在规范中。本发明的电子照相感光材料具有优异的静电特性，耐湿性和耐久性。

84. 发明授权

US5043241A Liquid developer for electrostatic photography 失效
标题翻译：静电摄影用液体显影剂
公开(公告)号：US5043241A
公开(公告)日：1991-08-27
申请号：US427392
申请日：1989-10-27
申请人： Eiichi Kato , Kazuo Ishii
发明人： Eiichi Kato , Kazuo Ishii
IPC分类号： G03G9/087 , G03G9/13
CPC分类号： G03G9/131 , Y10S430/105
摘要： A liquid developing agent comprising a resin dispersed in a nonaqueous solvent wherein said comprisecopolymer resin grains produced by polymerization of a solution containing one monofunctional monomer (a) which is soluble in said nonaqueous solvent but is rendered insoluble by polymerization and at least one monomer (B) which contains at least two polar groups and/or polar linkage groups and is represented by ##STR1## in the presence of a resin for dispersion stabilization which is soluble in said nonaquous solvent and is a polymer which has repeating units represented by the general formula (I) below ##STR2##

85. 发明授权

US5041352A Liquid developer for electrostatic photography 失效
标题翻译：静电摄影用液体显影剂
公开(公告)号：US5041352A
公开(公告)日：1991-08-20
申请号：US473535
申请日：1990-02-01
申请人： Eiichi Kato , Kazuo Ishii , Hideyuki Hattori
发明人： Eiichi Kato , Kazuo Ishii , Hideyuki Hattori
IPC分类号： G03G9/13
CPC分类号： G03G9/131 , G03G9/133
摘要： A liquid developer for electrostatic photography comprising a resin dispersed in a non-aqueous solvent having an electric resistance of at least 10.sup.9 .OMEGA.cm and a dielectric constant of not higher than 3.5, wherein the dispersed resin is a polymer resin obtained by polymerizing a solution containing at least one monofunctional monomer (A) which is soluble in the aforesaid non-aqueous solvent but become insoluble after being polymerized, in the presence of a dispersion-stabilizing resin which is soluble in the aforesaid non-aqueous solvent and at least one oligomer (B) having a number average molecular weight of not more than 1.times.10.sup.4 and having at least one polar group selected from a carboxy group, a sulfo group, a hydroxy group, a formyl group, an amino group, a phosphono group, and ##STR1## wherein R.sup.0 represents a hydrocarbon group or --OR.sup.1, (wherein R.sup.1 represents a hydrocarbon group) bonded to only one terminal of the main chain of a polymer composed of a recurring unit represented by following formula (II): ##STR2## wherein V.sup.1, R.sup.2, a.sup.1 and a.sup.2 are as defined in the specification. The liquid developer is excellent in dispersion stability, re-dispersibility, and fixability, and also is capable of forming an offset printing plate having excellent ink-receptivitiy for printing ink and excellent printing durability by electrophotography.
摘要翻译：一种用于静电照相的液体显影剂，其包含分散在电阻至少为10 9Ω·cm，介电常数不高于3.5的非水溶剂中的树脂，其中所述分散树脂是通过聚合含有至少一种在可溶于上述非水溶剂的分散稳定树脂和至少一种低聚物的存在下，其可溶于前述非水溶剂但在聚合后变得不溶的单官能单体（A） B）数均分子量不大于1×10 4，并且具有至少一个选自羧基，磺基，羟基，甲酰基，氨基，膦酰基的极性基团，其中R 0表示烃基或-OR 1（其中R 1表示烃基），其仅与由以重复单元表示的重复单元组成的聚合物的主链的仅一个末端键合下式（II）：其中V1，R2，a1和a2如说明书中所定义。液体显影剂的分散稳定性，再分散性和定影性优异，并且还能够形成具有优异的用于印刷油墨的油墨接受性和通过电子照相术获得优异印刷耐久性的胶版印刷版。

86. 发明授权

US4983486A Liquid developers for electrophotography 失效
标题翻译：电子照相液体显影剂
公开(公告)号：US4983486A
公开(公告)日：1991-01-08
申请号：US427273
申请日：1989-10-24
申请人： Eiichi Kato , Kazuo Ishii
发明人： Eiichi Kato , Kazuo Ishii
IPC分类号： G03G9/087 , G03G9/12 , G03G9/13
CPC分类号： G03G9/131 , Y10S430/105
摘要： Disclosed is a liquid developer composition for electrophotography. In a non-aqueous solvent there is dispersed copolymer resin particles having been polymerized from at least one monofunctional monomer (A) and at least one monofunctional macromonomer (B) such as (III) ##STR1## in the presence of a dispersion stabilization resin copolymerizable with a mono-functional monomer (A).
摘要翻译：公开了一种用于电子照相术的液体显影剂组合物。在非水溶剂中，在至少一种单官能单体（A）和至少一种单官能大分子单体（B）如（III）＆lt; IMAGE＆gt;和（II）＆lt; IMAGE＆gt;中聚合有分散的共聚物树脂颗粒存在可与单官能单体（A）共聚的分散体稳定树脂。

87. 发明授权

US4929527A Method of image formation which includes scanning exposure process 失效
标题翻译：包括扫描曝光过程的图像形成方法
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.

88. 发明授权

US4618557A Liquid developer for electrostatic photography 失效
公开(公告)号：US4618557A
公开(公告)日：1986-10-21
申请号：US763112
申请日：1985-08-07
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： G03G9/12 , G03G9/13
CPC分类号： G03G9/131
摘要： An liquid developer for electrostatic photography is described, comprising a carrier liquid having an electric resistance of at least 10.sup.9 .OMEGA..multidot.cm and a dielectric constant of not more than 3.5, and a resin dispersed therein, said resin being obtained by polymerizing a monomer, which is soluble in said carrier liquid but becomes insoluble upon being polymerized, in the presence of at least one kind of a soluble dispersion stabilizing resin, said soluble dispersion stabilizing resin being a copolymer containing at least recurring units represented by following formulae (IIIa) and (IIIb) obtained by applying a reaction for introducing an unsaturated bond into a copolymer obtained by polymerizing a monomer represented by formula (I) and a monomer represented by formula (III) ##STR1## wherein in formula (I), V represents --O--, --S--, --CO--, --CO.sub.2 --, --SO.sub.2 --, --OCO--, --CONH--, --CONR'-- (wherein R' represents a hydrocarbon group), --NHCO--, NHCO.sub.2 --, or --NHCONH--; X represents --CO.sub.2 H, --COCl, --OH, --SH, --NH.sub.2, --NCO, or --SO.sub.2 CH.sub.2 CH.sub.2 Cl; W represents a hydrocarbon group linking said atomic group V and said atomic group X directly or through a hetero atom, or W represents a chemical bond; and a.sub.1, a.sub.2, and a.sub.3 each represents a hydrogen atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group;in formula (II), Y represents --O--, --S--, --CO--, --CO.sub.2 --, --SO.sub.2 --, --OCO--, CONH--, --CONR"-- (wherein R" represents a hydrocarbon group), --NHCO--, --NHCO.sub.2 --, or --NHCONH--; R represents a hydrocarbon group; and b.sub.1, b.sub.2, and b.sub.3 each represents a hydrocarbon atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group;in formula (IIIa), a.sub.1, a.sub.2, a.sub.3, V, and W have the same meanings as defined for formula (I); X' represents --CO.sub.2 --, --COS--, --SCO--, --CONH--, --OCO--, --NHCO--, --NHCONH--, --SO.sub.2 --, --O--, or --S--; Z represents a hydrocarbon group linking said atomic group X' and unsaturated bond directly or through a hetero atom, or Z represents a chemical bond; the total number of atoms of the main chain portion of atomic group --V--W--X'--Z-- must, however, be at least 9; and d.sub.1, d.sub.2, and d.sub.3 each represents a hydrocarbon atom, a hydrocarbon group, a carboxy group, or a carboxy group through a hydrocarbon group; andin formula (IIIb), b.sub.1, b.sub.2, b.sub.3, Y, and R have the same meanings as defined for formula (II).

89. 发明授权

US06843553B2 Ink jet printing method and printing apparatus 失效
标题翻译：喷墨打印方法和打印装置
公开(公告)号：US06843553B2
公开(公告)日：2005-01-18
申请号：US09741071
申请日：2000-12-21
申请人： Kazuo Ishii , Yusuke Nakazawa , Sadao Ohsawa , Eiichi Kato
发明人： Kazuo Ishii , Yusuke Nakazawa , Sadao Ohsawa , Eiichi Kato
IPC分类号： B41C1/10 , B41J2/06 , B41J3/407 , B41J3/60 , B41M5/00 , B41M7/00 , G01D11/00
CPC分类号： B41M5/00 , B41J2/06 , B41J3/60 , B41J2002/012 , B41J2002/061 , B41M7/00 , B41P2227/70
摘要： An ink jet printing method which comprises: directly forming an image on a printing medium on the basis of signals of image data; and fixing the image to produce a printed matter, wherein said image formation is carried out by an ink jet system of ejecting an oily ink by an electrostatic field. The method preferably further comprises cleaning an ink jet head, said cleaning step comprising: immersing said ink jet head in a cleaning solution; and applying voltage to said ink jet head. Alternatively, the method preferably further comprises, when a malfunction happens, either or both of stopping the image formation and eliminating a cause of the malfunction. Also disclosed are printing apparatuses suitably used for these methods.
摘要翻译：一种喷墨打印方法，包括：基于图像数据的信号直接在打印介质上形成图像; 并且固定图像以产生印刷物，其中所述图像形成由通过静电场喷射油性墨水的喷墨系统进行。该方法优选还包括清洁喷墨头，所述清洁步骤包括：将所述喷墨头浸入清洁溶液中; 并向所述喷墨头施加电压。或者，该方法优选地还包括当发生故障时，停止图像形成或消除故障原因中的一个或两者。还公开了适用于这些方法的印刷装置。

90. 发明授权

US06834586B1 Lithographic method and lithographic device, plate making method and plate making device, and ink jet printing method and printing device 失效
标题翻译：平版印刷方法和平版印刷装置，制版方法和制版装置，以及喷墨打印方法和印刷装置
公开(公告)号：US06834586B1
公开(公告)日：2004-12-28
申请号：US09980112
申请日：2001-11-30
申请人： Sadao Ohsawa , Yusuke Nakazawa , Kazuo Ishii , Eiichi Kato
发明人： Sadao Ohsawa , Yusuke Nakazawa , Kazuo Ishii , Eiichi Kato
IPC分类号： B41C110
CPC分类号： B41M1/06 , B41C1/1066 , B41J2/06 , B41J3/60 , B41J2002/012 , B41J2002/061 , B41M7/009 , B41P2227/70
摘要： An on-press recording type lithographic printing method comprising mounting a plate material on a plate cylinder of a press, ejecting an oil-based ink onto the plate material from a recording head having a plurality of ejection channels utilizing an electrostatic field according to signals of image data to directly form an image on the surface of the plate material and prepare a printing plate, and then effecting the lithographic printing using the printing plate as it is, wherein the distance of the ejection channels is 170 &mgr;m, or more (150 dpi (150 dots per inch) or less as calculated in terms of resolution of recorded image).
摘要翻译：一种按压记录型平版印刷方法，包括将板材安装在印刷机的印版滚筒上，从具有多个喷射通道的记录头将油性墨喷射到板材上，利用静电场根据图像数据，以在板材的表面上直接形成图像，并准备印刷版，然后使用印版进行平版印刷，其中喷射通道的距离为170μm以上（150dpi （150点/英寸）以下）。

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