| Patent Number |
Title Of Patent |
Date Issued |
| 7194956 |
Offset printing method and printing apparatus using heat and light to make a printing plate hydr |
March 27, 2007 |
| There is prepared a printing plate on which a material being hydrophilic due to light energy at a first temperature and being hydrophobic at a second temperature due to heat energy which is lower than the first temperature is provided. First, the whole surface of the printing plate i |
| 6892640 |
Offset printing method and printing apparatus using the same |
May 17, 2005 |
| There is prepared a printing plate on which a material being hydrophilic at a first temperature and being hydrophobic at a second temperature which is lower than the first temperature is provided. First, the whole surface of the printing plate is forcibly made either one of hydrophobic o |
| 6694880 |
Offset printing method and printing apparatus using the same |
February 24, 2004 |
| There is prepared a printing plate on which a material being hydrophilic at a first temperature and being hydrophobic at a second temperature which is lower than the first temperature is provided. First, the whole surface of the printing plate is forcibly made either one of hydrophobic o |
| 6484634 |
Block copy sheet for lithographic printing plate |
November 26, 2002 |
| 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 portion |
| 6474236 |
Plate material placement apparatus and method |
November 5, 2002 |
| 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 secti |
| 6467411 |
Printing plate mounting apparatus having guide member for bending plate towards cylinder |
October 22, 2002 |
| A printing plate mounting apparatus (10) mounts a printing plate (70) to a plate cylinder (61). The plate cylinder (61) has a plate head clamping mechanism (62) having upper and lower jaws (62a, 62b) to position and secure a plate head of a flexible printing plate. In the apparatus (10), |
| 6420091 |
Method of producing lithographic printing plate |
July 16, 2002 |
| 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 surf |
| 6405650 |
Camera-ready copy sheet for lithograpic printing plate |
June 18, 2002 |
| The present invention provides for a camera-ready copy sheet to be inserted between a plate cylinder and a lithographic printing plate at least the back side of which is made of a non-metallic material. The copy sheet has asperities of a predetermined shape on the front side that are urg |
| 6397746 |
Camera-ready copy sheet for lithographic printing plates |
June 4, 2002 |
| The present invention provides for a camera-ready copy sheet to be inserted between a plate cylinder and a lithographic printing plate at least the back side of which is made of a non-metallic material. The copy sheet has asperities of a predetermined shape on the front side that are urg |
| 6391522 |
Offset printing plate precursor and method for offset printing using the same |
May 21, 2002 |
| An offset printing plate precursor comprising a substrate having provided thereon a layer containing a substance capable of absorbing radiant rays and converting the radiant energy to heat energy, and a thin layer, wherein printing is performed by following the steps of:(a) subjecting th |
| 6251552 |
Method and apparatus of developing electrophotographic master plate for printing |
June 26, 2001 |
| A conductive layer 5 and a photoconductive layer 7 are laminated on a support member 3 made of resin so that an electrophotographic master plate for printing is constituted. Electrode portions 5a electrically connected to the conductive layer 5 are formed on the widthwise directional sid |
| 6207332 |
Process for producing lithographic printing plate |
March 27, 2001 |
| 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 el |
| 6176182 |
Block copy material for lithographic printing plate material, lithographic press and lithographi |
January 23, 2001 |
| 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 |
| 6112664 |
Plate making apparatus with a cutter and punch mechanism formed in one piece |
September 5, 2000 |
| 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 sectio |
| 6048654 |
Lithographic printing method and printing plate precursor for lithographic printing |
April 11, 2000 |
| A a lithographic printing method comprising repetition of the steps of exposing a printing plate precursor having on the surface thereof a thin layer comprising TiO.sub.2, ZnO or at least one compound selected from the group consisting of RTiO.sub.3 wherein R represents an alkaline earth |
| 6022654 |
Production process of lithographic printing plate |
February 8, 2000 |
| Disclosed is a process for producing a lithographic printing plate using a lithographic printing plate precursor comprising a support having a volume resistivity of more than 1.times.10.sup.10 .OMEGA..cm, an electrically conductive layer provided on one surface of the support and having |
| 5950541 |
Method of producing lithographic printing plate |
September 14, 1999 |
| A lithographic printing plate is produced using a lithographic printing original plate which is composed of a paper support having a volume electric resistance adjusted to 1.times.10.sup.10 .OMEGA..multidot.cm or below by undergoing a conductive treatment, a metallic conductive layer |
| 5665499 |
Method for development of electrophotographic printing plate precursor |
September 9, 1997 |
| An electrophotographic printing plate precursor having satisfactory mechanical strength and water-resistance and suitable to the direct electrical supply system, and a method for development thereof are disclosed.The electrophotographic printing plate precursor comprises an electrically |
| 5597671 |
Electrophotographic printing plate precursor and method for development thereof |
January 28, 1997 |
| An electrophotographic printing plate precursor having satisfactory mechanical strength and water-resistance and suitable to the direct electrical supply system, and a method for development thereof are disclosed.The electrophotographic printing plate precursor comprises an electrically |
| 5543258 |
Original forme for electrophotograhic planography |
August 6, 1996 |
| An original form for electrophotographic planography includes a paper support having thereon a photoconductive layer including a photoconductive material including at least zinc oxide and a resin binder, the exposure percentage of the zinc oxide on a surface of the photoconductive layer |
| 5482810 |
Process for the production of an electrophotographic lithographic printing plate precursor |
January 9, 1996 |
| An excellent electrophotographic lithographic printing plate precursor capable of exhibiting a stable electrophotographic sensitivity and toner fogging density as well as less occurrence of background stains during printing can be produced in effective manner. The feature consists in a |
| 5424155 |
Electrophotographic lithographic printing plate precursor |
June 13, 1995 |
| 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 |
| 5378564 |
Electrophotographic lithographic printing plate precursor |
January 3, 1995 |
| An electrophotographic lithographic printing plate precursor capable of well maintaining both the electrophotographic properties and the printing properties is provided, which comprises, at least, a photoconductive layer on one side of a support and an under layer directly under the |
| 5081499 |
Liquid developing method and apparatus for electrophotography, and electrodes therefor |
January 14, 1992 |
| 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 tha |
| 5057389 |
Electrophotographic lithographic printing plate precursor with over back layer |
October 15, 1991 |
| 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 |
| 4994342 |
Electrophotographic lithographic printing plate precursor and a method of developing the same |
February 19, 1991 |
| 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 pre |
| 4897329 |
Method for preparing a lithographic printing plate and a light-sensitive material used therefor |
January 30, 1990 |
| A method for preparing a lithographic printing plate and a light-sensitive material for a lithographic printing plate are disclosed. The method comprises providing a light-sensitive material comprising an electroconductive support having a hydrophilic surface. Provided on the surface |
| 4626484 |
Light-sensitive printing plate precursor |
December 2, 1986 |
| A light-sensitive printing plate precursor is described comprising a support having provided thereon a light-sensitive layer, said light-sensitive layer having spray-coated and dried thereon an aqueous liquid containing a resin in a dissolved or dispersed state. |
| 4611409 |
Liquid removing method |
September 16, 1986 |
| A method for removing liquid from the surface of a plate-shaped material, for instance, as applied to removing surface treatment liquids from metal plates of photographic film. While the plate-shaped material is being conveyed, a larger part of the liquid is removed from its surface by a |
| 4518668 |
Method for preparing a lithographic printing plate |
May 21, 1985 |
| A method for preparing a lithographic printing plate is disclosed. The method involves providing a light-sensitive material comprised of an electroconductive support having a hydrophilic surface. The surface has provided thereon a light-sensitive layer and a photo-conductive insulating |
| 4500617 |
Method for preparing a lithographic printing plate and a light-sensitive material used therefor |
February 19, 1985 |
| A method for preparing a lithographic printing plate and the light-sensitive material for lithographic printing plates are disclosed. The method is comprised of providing a light-sensitive material which is comprised of an aluminum or aluminum alloy support having provided thereon a |
| 4456670 |
Photosensitive material for lithographic printing |
June 26, 1984 |
| A photosensitive material for lithographic printing comprising a photosensitive layer, an aluminum foil and a paper base in that order. An intermediate layer containing colloidal silica and/or colloidal alumina is formed between the photosensitive layer and the aluminum foil. The mat |
