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。

公开(公告)号：US5057389A

公开(公告)日：1991-10-15

申请号：US371784

申请日：1989-06-27

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

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

IPC分类号： G03G13/28 ,  G03G5/10 ,  G03G5/14 ,  G03G15/10

CPC分类号： G03G5/10 ,  G03G5/142 ,  G03G5/144

摘要： An electrophotographic lithographic printing plate precursor which is suitable for not only the ordinary developing methods but also the developing methods of direct electron injection system and which after developing, can readily be wound and fixed, as a lithographic printing plate, around a drum of a printing machine without any slippage after winding is provided. This precursor comprise a base of paper coated, on both surfaces thereof, with .alpha.-polyolefin laminated layers each having a volume resistivity of at most 1.times.10.sup.10 .OMEGA. and being further provided, on one side thereof, with a photoconductive layer and on the other side thereof, with an over back layer having a surface resistivity of at most 1.times.10.sup.10 .OMEGA. and a larger friction coefficient than the .alpha.-polyolefin laminated layer.

公开(公告)号：US4994342A

公开(公告)日：1991-02-19

申请号：US374816

申请日：1989-07-03

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

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

IPC分类号： G03G5/10 ,  G03G5/14 ,  G03G13/28 ,  G03G15/10

CPC分类号： G03G5/10 ,  G03G5/101 ,  G03G5/104 ,  G03G5/142

摘要： An electrophotographic lithographic printing plate precursor capable of giving a good image free from pinholes is provided which comprises an electrically conductive base coated, on one side thereof, with an undercoated layer and a photoconductive layer containing zinc oxide as a predominant component in order and on the opposite side thereof, with a back layer, said undercoated layer having a surface resistivity of 1.times.10.sup.8 to 1.times.10.sup.14 .OMEGA. and said back layer having a surface resistivity of at most 1.times.10.sup.10 .OMEGA..

公开(公告)号：US5319422A

公开(公告)日：1994-06-07

申请号：US923205

申请日：1992-07-31

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

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

IPC分类号： G03G15/10

CPC分类号： G03G15/108 ,  G03G15/10

摘要： A liquid electrophotographic developing device for developing a charged and exposed photoconductive material which includes a photoconductive layer formed on one surface of a conductive layer. The liquid electrophotographic developing device is comprised of developing section, a developing solution tank provided in a housing and filled with a developing solution, conveying rollers for conveying the photoconductive materials, a developing electrode and a back electrode which are disposed parallel along a conveying path of the photoconductive material in the developing section, and a developing solution supplying device disposed above the developing electrode. The developing electrode is spaced part from the photoconductive layer, and the back electrode is disposed to come into contact with the back surface of the photoconductive material. Upon directly connecting the electrodes, toner particles contained in the developing solution adhere to the photoconductive layer to achieve development. The developing electrode does not touch the photoconductive layer to make a developed image free from soiling. The housing is covered with a lid to prevent the vaporizing of the developing solution. The developing solution is circulated through the developing section by a circulating device.

摘要翻译： 一种用于显影带电和曝光的光电导材料的液体电子照相显影装置，其包括形成在导电层的一个表面上的光电导层。 液体电子照相显影装置包括显影部分，设置在壳体中并充满显影液的显影液罐，用于输送光导材料的输送辊，显影电极和背电极，沿着输送路径 显影部分中的感光材料和设置在显影电极上方的显影剂供应装置。 显影电极与光电导层隔开一部分，并且后电极设置成与光导材料的背面接触。 在直接连接电极时，包含在显影液中的调色剂颗粒粘附到光电导层上以实现显影。 显影电极不接触光电导层以使得显影图像没有污染。 外壳被盖盖住，以防止显影液蒸发。 显影液通过循环装置循环通过显影部分。

公开(公告)号：US5216201A

公开(公告)日：1993-06-01

申请号：US575717

申请日：1990-08-31

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

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

IPC分类号： G03G15/10

CPC分类号： G03G15/108 ,  G03G15/10

摘要： A liquid electrophotographic developing device for developing a photoconductive material charged and exposed and which has a photoconductive layer formed on one surface of a conductive layer comprises a developing tank filled with a developing solution in which a developing electrode and a back electrode are disposed. The electrodes are immersed in the developing solution and disposed on either side of the photoconductive material in conveyance. The back electrode comes into contact with the back surface of the photoconductive material, whereas the developing electrode is spaced part from the photoconductive layer. Upon directly connecting the electrodes, toner particles contained in the developing solution adhere to the photoconductive layer to achieve development. The developing electrode does not touch the photoconductive layer, making a developed image free from soiling, the electrodes are immersed in the developing solution, preventing the drying and solidifying of the solution around the electrodes, and the developing tank is covered with a lid, preventing the vaporizing of the developing solution.

公开(公告)号：US4341856A

公开(公告)日：1982-07-27

申请号：US237057

申请日：1981-02-23

申请人： Tadao Toyama ,  Sho Nakao ,  Keisuke Shiba ,  Hidefumi Sera ,  Masasi Ogawa

发明人： Tadao Toyama ,  Sho Nakao ,  Keisuke Shiba ,  Hidefumi Sera ,  Masasi Ogawa

IPC分类号： G03F7/00 ,  G03F7/004 ,  G03F7/06 ,  G03F7/095 ,  G03C1/76 ,  G03F7/02

CPC分类号： G03F7/0952

摘要： A photosensitive lithographic printing plate precursor comprising a support having a hydrophilic surface and having thereon a non-silver photosensitive layer capable of forming a water-insoluble oleophilic image and a hardened gelatino silver halide photosensitive emulsion layer on the non-silver photosensitive layer.

摘要翻译： 一种感光性平版印刷版原版，其包含具有亲水性表面的载体，并且在其上具有能够在非银感光层上形成水不溶性亲油性图像的非银感光层和硬化的明胶卤化银感光乳剂层。

公开(公告)号：US06176182B1

公开(公告)日：2001-01-23

申请号：US09131700

申请日：1998-08-10

申请人： Takao Nakayama ,  Hidefumi Sera ,  Mutsumi Naniwa

发明人： Takao Nakayama ,  Hidefumi Sera ,  Mutsumi Naniwa

IPC分类号： B41N600

CPC分类号： B41N6/00

摘要： A block copy material for a lithographic printing plate material comprising a sheet-like substrate, on at least one side of which a plurality of minute projections are distributively formed, or a lithographic press having a plate cylinder, on a surface of which a plurality of minute projections are distributively formed, wherein the density of minute projections having a height of more than 40 &mgr;m is 20 projections/cm2 or less on surface average, and the density of minute projections having a height of 3 &mgr;m or more is 25 projections/cm2 or more on surface average. The block copy material for a lithographic printing plate material, the lithographic press and a lithographic printing method using the block copy material or the lithographic press can avoid the deterioration of the printing dimension and printing accuracy caused by strain partially developed in printing, and can solve the problem of conventional methods, the deterioration of the workability in printing.

摘要翻译： 一种用于平版印刷版材料的块复制材料，其包括片状基底，其至少一侧上分布有多个微小凸起，或具有印版滚筒的平版印刷机，其表面上具有多个 分布形成微小突起，其中高度大于40μm的微小突起的密度在表面平均上为20个突起/ cm 2以下，高度为3μm以上的微小突起的密度为25个突起/ cm 2 或更多表面平均值。 用于平版印刷版材料的平版印刷材料，平版印刷机和使用块复制材料或平版印刷机的平版印刷方法可以避免印刷中部分显影的应变引起的印刷尺寸和印刷精度的劣化，并且可以解决 传统方法的问题，打印作业性的恶化。

公开(公告)号：US5424155A

公开(公告)日：1995-06-13

申请号：US983517

申请日：1993-04-21

申请人： Takao Nakayama ,  Shigeyuki Dan ,  Hidefumi Sera

发明人： Takao Nakayama ,  Shigeyuki Dan ,  Hidefumi Sera

IPC分类号： G03G5/14 ,  G03G5/10 ,  G03G13/28 ,  G03G15/28

CPC分类号： G03G13/28 ,  G03G15/28 ,  G03G5/10

摘要： The present invention aims at, in an electrophotographic lithographic printing plate precursor, improving the construction and composition of back layers and in particular, preventing occurrence of printing scum by rubbing and increasing the number of prints until printing wrinkles occur. The feature of the present invention consists in an electrophotographic lithographic printing plate precursor comprising, at least, a photoconductive layer on one surface of a base and a back layer on the other surface thereof, in which the back layer comprises an outermost layer containing a hydrophilic high molecular material and an innerlayer having a Cobb's water absorbing capacity of at most 25 g/m.sup.2 (45 minute value).

摘要翻译： PCT No.PCT / JP92 / 00815 Sec。 371日期：1993年4月21日 102（e）日期1993年4月21日PCT提交1992年6月26日PCT公布。 出版物WO93 / 00615 日本1993年1月7日。本发明的目的在于，在电子照相平版印刷版原版中，改善背层的结构和组成，特别是通过摩擦和增加打印数量直到印刷皱纹发生时产生印刷浮渣 。 本发明的特征在于电子照相平版印刷版原版，其至少包括在基底的一个表面上的光电导层和在另一个表面上的背层，其中背层包括含有亲水性的最外层 高分子材料和Cobb吸水能力至多为25g / m 2（45分钟值）的内层。

公开(公告)号：US06474236B1

公开(公告)日：2002-11-05

申请号：US09624774

申请日：2000-07-25

申请人： Mutsumi Naniwa ,  Hidefumi Sera ,  Takao Nakayama

发明人： Mutsumi Naniwa ,  Hidefumi Sera ,  Takao Nakayama

IPC分类号： B41F2706

CPC分类号： B41F13/10 ,  B41F27/1206 ,  B41F27/1281 ,  G03F7/2055 ,  G03F9/00 ,  Y10T83/0586 ,  Y10T83/8828 ,  Y10T83/9418 ,  Y10T83/943

摘要： A plate making apparatus of a flexible plate material 13, 22 being placed on a plate cylinder 7 for executing planographic printing in multiple colors. The plate making apparatus has a cutter 23 being placed between a storage section 21 of a roll-like plate material and an exposure section 25 for cutting the roll-like plate material like a sheet and punch means 30 for making plate cylinder engagement holes 14a and 14b in the left and right margins of the plate material along the transport direction thereof, the plate cylinder engagement holes to be engaged in protrusions 7a an 7b disposed in the circumferential direction of the left and right margins of the plate cylinder. Accordingly, it is possible to provide a plate making apparatus which reliably holds a plate material on a plate cylinder for enabling planographic printing and can use a roll-like plate material.

摘要翻译： 柔性板材13,22的制版装置放置在印版滚筒7上，用于执行多种颜色的平版印刷。 制版装置具有切割器23，其被放置在卷状板材料的存储部分21和用于切割片状的卷状板材的曝光部分25和用于制造印版滚筒接合孔14a和 14b在板材沿其输送方向的左右边缘处，印版滚筒接合孔被接合在印版滚筒的左右边缘的圆周方向上设置的突起7a，7b中。 因此，可以提供一种将板材可靠地保持在印版滚筒上以实现平版印刷并能够使用卷状板材的制版装置。

公开(公告)号：US6112664A

公开(公告)日：2000-09-05

申请号：US289945

申请日：1999-04-13

申请人： Mutsumi Naniwa ,  Hidefumi Sera ,  Takao Nakayama

发明人： Mutsumi Naniwa ,  Hidefumi Sera ,  Takao Nakayama

IPC分类号： B41F13/10 ,  B41F27/12 ,  G03F7/20 ,  G03F9/00 ,  B41N3/00

CPC分类号： B41F13/10 ,  B41F27/1206 ,  B41F27/1281 ,  G03F7/2055 ,  G03F9/00

摘要： A plate making apparatus of a flexible plate material 13,22 being placed on a plate cylinder 7 for executing planographic printing in multiple colors. The plate making apparatus has a cutter 23 being placed between a storage section 21 of a roll-like plate material and an exposure section 25 for cutting the roll-like plate material like a sheet and punch means 30 for making plate cylinder engagement holes 14a and 14b in the left and right margins of the plate material along the transport direction thereof, the plate cylinder engagement holes to be engaged in protrusions 7a and 7b disposed in the circumferential direction of the left and right margins of the plate cylinder. Accordingly, it is possible to provide a plate making apparatus which reliably holds a plate material on a plate cylinder for enabling planographic printing and can use a roll-like plate material.

摘要翻译： 柔性板材13,22的制版装置放置在印版滚筒7上，用于执行多种颜色的平版印刷。 制版装置具有切割器23，其被放置在卷状板材料的存储部分21和用于切割片状的卷状板材的曝光部分25和用于制造印版滚筒接合孔14a和 14b在板材沿其输送方向的左右边缘处，印版滚筒接合孔被接合在印版滚筒的左右边缘的圆周方向上设置的突起7a和7b中。 因此，可以提供一种将板材可靠地保持在印版滚筒上以实现平版印刷并能够使用卷状板材的制版装置。