Surface Contains Metal Patents (Class 101/458)
  • Patent number: 10710102
    Abstract: A fluid permeable member includes a support body provided in a lower portion thereof with a support plate having a fluid permeable through-hole, and a fluid permeable anodic oxide film disposed on the support plate.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 14, 2020
    Assignee: POINT ENGINEERING CO., LTD.
    Inventors: Bum Mo Ahn, Seung Ho Park, Tae Hwan Song
  • Patent number: 10626489
    Abstract: The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 21, 2020
    Assignee: MATERION CORPORATION
    Inventors: Fritz C. Grensing, Robert E. Kusner, David J. Krus, William D. Nielsen, Karl Ziegler
  • Patent number: 10532422
    Abstract: This clad material includes a first layer made of a Mg—Li base alloy, a second layer made of an Al base alloy, and a first bonding portion arranged on a bonding interface between the first layer and the second layer in a section view when cut in a thickness direction and made of a Cu base alloy. The clad material has a specific gravity of 2.10 or less.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: January 14, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Shinji Yamamoto, Ryoji Inoue
  • Patent number: 10170444
    Abstract: Packages for semiconductor devices, packaged semiconductor devices, and methods of packaging semiconductor devices are disclosed. In some embodiments, a package for a semiconductor device includes an integrated circuit die mounting region, a molding material around the integrated circuit die mounting region, and an interconnect structure over the molding material and the integrated circuit die mounting region. The interconnect structure has contact pads, and connectors are coupled to the contact pads. Two or more of the connectors have an alignment feature formed thereon.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 1, 2019
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ching-Jung Yang, Yen-Ping Wang
  • Patent number: 9481922
    Abstract: Embodiments of the invention provide a thermal spray method of forming a protective and porous coating over desired surfaces. Further, embodiments provide a thermal arc spray method, such as twin wire arc spray, to coat the surfaces. The invention may refer to using Aluminum and Silicon alloy in a twin wire arc spray method, to create sacrificial and protective coatings on the surfaces, such as substrates and machine parts. Machine parts may be, for example, of sputtering system. The method may utilize a predefined range of Silicon to be alloyed with Aluminum to improve the physical properties of the Aluminum, and further avoid damages to the coated surface, such as de-lamination and flaking of the coatings and coated surfaces. Additionally, generation of defects during a sputtering process may be efficiently reduced.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 1, 2016
    Inventors: Yitzhak Vanek, Leonardo Mendelovici
  • Patent number: 8981254
    Abstract: In a method for re-imaging a printing form that has been used for printing in a prior printing process a substrate of the printing form is cleaned globally of ink or varnish and the substrate is treated abrasively globally in order to erase a preceding printing image. The substrate to be imaged with a new printing image is treated locally in image regions with a pulsed laser beam and, in the process, a nanoscopic and hydrophobic surface structure is produced locally. The substrate is treated globally with a hydrophilicity intensifier, as a result of which the substrate becomes hydrophilic locally in the previously hydrophobic image regions. An apparatus has a corresponding erasing unit and an imaging unit with a femtosecond laser.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: March 17, 2015
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Heiner Pitz, Bernhard Mechler, Rolf Spilger
  • Patent number: 8877426
    Abstract: A printing plate comprises a substantially planar substrate, a porous non-anodic ungrained coating, having a thickness within the range of about 0.1 to about 30 microns and comprising at least one of metals, metal oxides and admixtures thereof, and an image recording layer, provided that where the porous coating consists essentially of oxide(s) only, it comprises at least one oxide of copper, magnesium, cadmium, aluminum, zirconium, hafnium, thorium, chromium, tungsten, molybdenum and (or) cobalt, and further provided that where the porous coating consists essentially of alumina only, it comprises specified pores. The invention also relates to an article of manufacture having a nanometric porous surface layer comprising at least one of metals, metal oxides and mixtures thereof, which comprises pores in the surface layer having a width in a range 0-100 nm, and wherein a major number of pores in this range have a width in a band of about 1 to about 30 nm.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: November 4, 2014
    Assignee: Acktar Ltd.
    Inventors: Dina Katsir, Zvi Finkelstein, Yuri Zarnitsky
  • Patent number: 8462391
    Abstract: A method for producing a pseudo-stochastic master surface for producing a cover or jacket of a cylinder for contacting printing material, includes providing the master surface with a pseudo-stochastic distribution of microsurfaces. The master surface is produced on the basis of a digital master in a jacket preliminary stage and serves for a preferably galvanic production of a microstructured cover, in which structure elevations correlate with the microsurfaces. The pseudo-stochastic distribution helps to avoid disruptive discernible effects, for example the moiré effect and helps to construct the microstructuring in a targeted manner. A master surface, a method for producing a cylinder cover, a cylinder cover, a machine for processing printing material, a method for producing printed products and a method for microstamping printed products, are also provided.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: June 11, 2013
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Ludo Kerz, Wolfram Kolbe, Martin Schmitt-Lewen
  • Publication number: 20100236436
    Abstract: An object of the present invention is to provide a CTP positive working lithographic printing original plate capable of developing using a negative developing solution. The present invention provides a positive working lithographic printing original plate having (1) a substrate thereon (2) a lower layer containing a water-insoluble and alkali-soluble resin and a photothermal conversion material, and (3) an uppermost layer containing a water-insoluble and alkali-soluble resin, wherein the lower layer contains (a) a polymer having a perfluoroalkyl group and/or (b) a polymer having a siloxane group.
    Type: Application
    Filed: August 25, 2008
    Publication date: September 23, 2010
    Inventors: Yasushi Miyamoto, Yasuhiro Asawa, Maru Aburano, Eiji Hayakawa, Shoichi Hotate
  • Patent number: 7299749
    Abstract: A lithographic printing plate support comprising a substrate having thereon a porous layer comprising metal oxide particles bound by a compound containing a metal atom and a phosphorus atom.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: November 27, 2007
    Assignee: Fujifilm Corporation
    Inventors: Tadabumi Tomita, Yoshinori Hotta
  • Patent number: 7051652
    Abstract: A wet offset printing form has atop layer containing a photocatalytically and thermally modifiable material. The material can be brought photocatalytically into a hydrophilic state by irradiation with light and into a lipophilic state by heating. The hydrophilic state forms a surface that can be illustrated and the lipophilic state forms an illustrated surface. The top layer of the wet offset printing form may contain absorption centers for irradiation, especially for laser radiation in the NIR range, with which heating of the top layer in the pattern of an image is brought about.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: May 30, 2006
    Assignee: Maschinenfabrik WIFAG
    Inventors: Matthias Riepenhoff, Olivier Stehlin
  • Patent number: 6929895
    Abstract: A lithographic printing plate precursor comprising an aluminum substrate, an image-recording layer and a hydrophilic film, the aluminum substrate being subjected to an electrochemical surface-roughening treatment in an aqueous solution comprising hydrochloric acid and provided with the hydrophilic film having a heat conductivity of 0.05 to 0.5 W/mK and/or at least one of a density of 1,000 to 3,200 kg/m3 and a porosity of 20 to 70%; and a lithographic printing plate precursor comprising an aluminum substrate, an image-recording layer and a hydrophilic film, the aluminum substrate having a surface-roughened shape comprising a small pit wherein an average opening size of the small pit is 0.01 to 3 ?m and a ratio of an average depth of the small pit to the average opening size is 0.1 to 0.5, and being provided with the hydrophilic film having a heat conductivity of 0.05 to 0.5 W/mK and/or at least one of a density of 1,000 to 3,200 kg/m3 and a porosity of 20 to 70%.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: August 16, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuo Maemoto, Hisashi Hotta
  • Patent number: 6908726
    Abstract: Infrared absorbing compounds that absorb at 800 nm±50 nm and at 1050 nm±50 nm, the two different regions of the infrared spectrum typically used for imaging, are disclosed. Thermally imageable elements that comprise these infrared absorbing compounds can be imaged with radiation in either of these two regions of the infrared spectrum. The elements are especially useful as lithographic printing plate precursors.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: June 21, 2005
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Lee Korionoff, Ting Tao, Kevin B. Ray
  • Patent number: 6843175
    Abstract: A support for a lithographic printing plate, wherein scum resistance is improved when processed into a lithographic printing plate by performing treatment for water wettablity and, in addition, press life is excellent. A support for a lithographic printing plate, which is obtained by performing at least anodizing treatment and silicate treatment on an aluminum plate, wherein a ratio of the number of atoms of alkali-earth metal and silicon existing on a surface thereof is 0.1 to 0.95.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: January 18, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Ikuo Kawauchi, Tadashi Endo, Hiroji Tokunaga
  • Patent number: 6832553
    Abstract: The present invention provides a method for printing, comprising the steps of: a) developing an image forming surface of a planographic printing plate; b) after the developing, hydrophilizing a portion of a vicinity of an edge of the image forming surface; c) after the hydrophilizing, adhering ink to the image forming surface; and d) transferring the ink to a printing target.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: December 21, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takayuki Usui
  • Patent number: 6805051
    Abstract: A lithographic printing plate support is provided which becomes a support of a PS plate which has excellent ability to withstand repeated printing, and in which defects in appearance, such as dirtying and the like, do not occur. Also provided are a method of manufacturing the lithographic printing plate support and a PS plate which has such merits.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: October 19, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideki Miwa, Teruyoshi Yasutake, Atsushi Matsuura, Akio Uesugi
  • Publication number: 20040154488
    Abstract: A lithographic printing plate support comprising a substrate having thereon a porous layer comprising metal oxide particles bound by a compound containing a metal atom and a phosphorus atom.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tadabumi Tomita, Yoshinori Hotta
  • Patent number: 6764807
    Abstract: A planographic printing member precursor comprises a first component, for example a hydroxy group containing polymer, and a second component which may be a siloxane or a compound of general formula (I), wherein M represents a silicon or a titanium atom and each of R1, R2, R3 and R4 is independently selected from hydrogen or halogen atoms; a hydroxy group; an optionally substituted alkyl, alkenyl or alkynyl group; an optionally substituted alkoxy group; or an optionally substituted saturated or unsaturated cyclic or heterocyclic group. On exposure, the second component reacts with the first component to define an oleophobic/hydrophilic material in exposed areas and in non-exposed areas the second component is removed, on processing of the precursor.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: July 20, 2004
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Kevin Barry Ray, Mark John Spowage, Christopher David McCullough
  • Patent number: 6715420
    Abstract: A printing plate for computer-to plate lithography having a metal substrate with an anodized surface portion. The anodized surface portion has a porous texture in which a radiation-absorbing composition, preferably a black dye, is deposited. The surface portion with the radiation-absorbing composition is covered with a hydrophilic polymer or a sealant both. Upon exposure to laser radiation, the underlying oleophilic anodized surface portion containing the radiation-absorbing composition is revealed. Alternatively, laser radiation of the polymer composition may cause the affinity of the polymer for water and ink to change so that an irradiated portion of the polymer becomes oleophilic while the non-irradiated portion remains hydrophilic.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: April 6, 2004
    Assignee: Alcoa Inc.
    Inventors: Sallie L. Blake, Albert L. Askin, Robert E. Bombalski, Daniel L. Serafin
  • Publication number: 20040055490
    Abstract: Disclosed is a printing plate precursor comprising an aluminum support having been subjected to surface roughening treatment and then to anodizing treatment, and provided thereon, a component layer comprising an image formation layer containing heat melting particles or heat fusible particles, the support satisfying the following conditions (a) and (b):
    Type: Application
    Filed: September 3, 2003
    Publication date: March 25, 2004
    Applicant: KONICA CORPORATION
    Inventor: Takeshi Sampei
  • Patent number: 6681699
    Abstract: The present invention discloses a planographic printing plate having a notched portion on its surface having a required size, and having smaller burrs at a rear face, and a planographic printing plate cutting device and a planographic printing plate cutting method for forming such a planographic printing plate by cutting. The planographic printing plate cutting device of the present invention includes an upper roller for forming a recessed section at the planographic printing plate. The upper roller, which is formed substantially into a disc shape as a whole, has a pressing portion parallel to a web (the planographic printing plate), and a slope portion that is slanted with respect to the surface of the web at a predetermined inclination. This upper roller presses the web such that a sloped face (recessed section) that is slanted with respect to the surface of the web is formed. Next, a shearing roller shears the web at the sloped face such that a remaining portion of the sloped face forms a notched portion.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: January 27, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhiro Annoura
  • Patent number: 6637334
    Abstract: A heat-sensitive lithographic printing plate precursor which comprises a substrate having thereon an anodic oxidation layer, with the printing plate precursor comprising a hydrophilic layer containing at least one kind of fine particles selected from the group consisting of heat-fusible hydrophobic thermoplastic fine particles, finely divided polymers having thermally reactive functional groups and microcapsules in which compounds having heat-reactive functional groups are encapsulated, and with the anodic oxidation layer having a surface over which micropores having an average pore size of 6 to 40 nm are uniformly distributed.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: October 28, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Akiyama, Hisashi Hotta, Kazuo Maemoto
  • Patent number: 6632584
    Abstract: A thermosensitive composition consisting of a mixture of polyacrylic acid, a salt of a long chain fatty acid such as silver behenate, an infra-red absorbent and modifiers such as additional polymers and fillers. Both the water solubility and affinity to water and oil changed when composition is heated.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: October 14, 2003
    Assignee: Creo, Inc.
    Inventor: David A. Morgan
  • Publication number: 20030145748
    Abstract: Objects of the present invention are to provide a positive working presensitized plate of a thermal type, which has damage resistance, and which is handled easily in conventional operation, high in sensitivity and excellent in press life when used as a lithographic printing plate, and to provide a support for a lithographic printing plate, which is suitably used for the same. The objects have been achieved by a support for a lithographic printing plate obtained by performing graining treatment, alkali etching treatment and anodizing treatment on an aluminum plate, wherein a ratio of a real area of a surface thereof to an apparent area of the surface set larger by 1.3 to 1.8 times, comprising a pit having an average diameter of 0.3 to 1.
    Type: Application
    Filed: July 22, 2002
    Publication date: August 7, 2003
    Inventors: Tadashi Endo, Hisashi Hotta, Katsuyuki Teraoka, Hideki Miwa, Teruyoshi Yasutake
  • Patent number: 6575094
    Abstract: A lithographic printing plate support is provided which becomes a support of a PS plate which has excellent ability to withstand repeated printing, and in which defects in appearance, such as dirtying and the like, do not occur. Also provided are a method of manufacturing the lithographic printing plate support and a PS plate which has such merits.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: June 10, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideki Miwa, Teruyoshi Yasutake, Atsushi Matsuura, Akio Uesugi
  • Patent number: 6568325
    Abstract: A support for lithographic printing plate which is obtained by performing surface roughening treatments including electrolytic graining on an aluminum alloy plate containing Fe, Si, Cu, Ti, Mg and Ni in specified amounts, with the balance being Al and incidental impurities. The Ni content, Cu content and the average surface roughness of the roughened support surface satisfy a specified relationship. A lithographic printing plate prepared from the support have longer press life, higher resistance to staining and better surface quality.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: May 27, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirokazu Sawada, Akio Uesugi
  • Publication number: 20030084807
    Abstract: A support for a lithographic printing plate, wherein scum resistance is improved when processed into a lithographic printing plate by performing treatment for water wettablity and, in addition, press life is excellent. A support for a lithographic printing plate, which is obtained by performing at least anodizing treatment and silicate treatment on an aluminum plate, wherein a ratio of the number of atoms of alkali-earth metal and silicon existing on a surface thereof is 0.1 to 0.95.
    Type: Application
    Filed: April 9, 2002
    Publication date: May 8, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Ikuo Kawauchi, Tadashi Endo, Hiroji Tokunaga
  • Patent number: 6520088
    Abstract: A printing form that can be used many times has a printing surface which is provided with a metallic titanium layer. For imaging, the printing form is selectively coated hydrophilically in point-by-point manner by supplying controlled energy. After the printing, the image on the printing form can be erased by supplying heat; a method for forming images on a printing form and for erasing them; and a printing unit and a printing press including the printing form.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: February 18, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Bernd Vosseler
  • Patent number: 6514623
    Abstract: A wear-resistant, ink-repellent coating, for printing-press components, and in particular, web-fed printing presses. In order to provide a seal for this low-wear coating which results in a permanent ink-repellent surface quality and which additionally has a high resistance to standard cleaning agents used in printing technology, the printing-press component which is to be protected is first provided with oxide ceramic or hard metal layer. This layer may be applied by thermal spraying. In addition, the component is treated with a polyorganosiloxane sealant, particularly polyhydridomethylsiloxane, including the necessary heat-curing at moderate temperatures of from 100° C. to 170° C. so as to prevent ink deposition. The sealing may also take place after the wear-resistant layer has undergone a grinding and polishing treatment.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: February 4, 2003
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Martin Endisch, Markus Kirst, Gerhard Johner
  • Publication number: 20020182538
    Abstract: A lithographic printing plate precursor is disclosed, comprising a metal support having formed thereon an anodic oxide film, and an image-forming layer containing a light-to-heat converting agent, or a light-sensitive layer capable of image-forming with infrared laser exposure provided in this order from the support.
    Type: Application
    Filed: December 20, 2001
    Publication date: December 5, 2002
    Inventors: Tadabumi Tomita, Atsushi Matsuura, Akio Uesugi, Katsuyuki Teraoka, Hisashi Hotta
  • Patent number: 6440623
    Abstract: A direct drawing type lithographic printing plate precursor comprising a water-resistant support having provided thereon an image-receiving layer comprising inorganic particles and a binder resin, wherein the inorganic particles comprise at least one kind of particles selected from: (i) metal oxide particles having an average particle size of from 0.01 to 5 &mgr;m and comprising a metal atom selected from Mg, Ba, Ge, Sn, Zn, Pb, La, Zr, V, Cr, Mo, W, Mn, Co, Ni and Cu; and (ii) double oxide particles having an average particle size of from 0.01 to 5 &mgr;m and comprising at least one metal atom selected from Mg, Al, Si, Ti, Zr, Cr, V, Mo, Sn, W and Nb, and wherein the binder resin comprises a complex comprising: a resin containing a bond in which a metal atom is connected with an oxygen atom; and an organic polymer containing a group capable of forming a hydrogen bond with the resin and at least one polar functional group selected from a carboxy group, a sulfo group and a phosphono group.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: August 27, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Tashiro, Eiichi Kato
  • Patent number: 6431067
    Abstract: The present invention discloses a planographic printing plate having a notched portion on its surface having a required size, and having smaller burrs at a rear face, and a planographic printing plate cutting device and a planographic printing plate cutting method for forming such a planographic printing plate by cutting. The planographic printing plate cutting device of the present invention includes an upper roller for forming a recessed section at the planographic printing plate. The upper roller, which is formed substantially into a disc shape as a whole, has a pressing portion parallel to a web (the planographic printing plate), and a slope portion that is slanted with respect to the surface of the web at a predetermined inclination. This upper roller presses the web such that a sloped face (recessed section) that is slanted with respect to the surface of the web is formed. Next, a shearing roller shears the web at the sloped face such that a remaining portion of the sloped face forms a notched portion.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: August 13, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhiro Annoura
  • Patent number: 6423468
    Abstract: Disclosed are a printing plate precursor having an anodized titanium film layer on a surface thereof; a process for lithography which comprises image-wise exposing the surface of the printing plate precursor to an actinic light, bringing the exposed surface into contact with a printing ink to form a printing surface where the image areas have received the ink, and using the resultant printing plate to conduct printing; and the process for lithography described above which further comprises cleaning the surface of the printing plate after completion of the printing to remove the remaining ink from the surface, subsequently heating the printing plate precursor at 80 to 500° C., and then repeatedly using the printing plate precursor.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: July 23, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Hotta, Katsuyuki Teraoka
  • Patent number: 6418850
    Abstract: An improved hydrophilized substrate for planographic printing is disclosed. The substrate contains a support and a hydrophilic layer over the support. The hydrophilic layer contains titanium dioxide (titania) particles. In one embodiment, the hydrophilic layer contains a mixture of coated and uncoated titanium dioxide particles, and, optionally, alumina particles. A method for preparation of the substrate and a printing member comprising the substrate are also disclosed.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: July 16, 2002
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Joanne Ray, Greg Turner, John Hearson, Denise Howard
  • Patent number: 6420091
    Abstract: 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 surface thereof to imagewise irradiation of heat mode to convert polarity of the metallic compound layer, thereby forming an imagewise hydrophobic region. The lithographic printing plate can be repeatedly employed.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: July 16, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takao Nakayama, Satoshi Hoshi, Nobufumi Mori, Takashi Nakamura
  • Publication number: 20020051931
    Abstract: A support for a printing plate is disclosed, comprising a substrate having thereon at least one component layer contains porous particles. The component layer further contains a flaky inorganic particles or a material having the function of converting light to heat. A printing plate comprising the support is also disclosed, having on the support an image forming layer containing a thermally fusible particles.
    Type: Application
    Filed: December 1, 1999
    Publication date: May 2, 2002
    Inventors: TAKAHIRO MORI, KAZUYUKI NISHIO, IO MIZUSHIMA, KATSURA HIRAI
  • Publication number: 20020033108
    Abstract: A heat-sensitive lithographic printing plate precursor which comprises a substrate having thereon an anodic oxidation layer, with the printing plate precursor comprising a hydrophilic layer containing at least one kind of fine particles selected from the group consisting of heat-fusible hydrophobic thermoplastic fine particles, finely divided polymers having thermally reactive functional groups and microcapsules in which compounds having heat-reactive functional groups are encapsulated, and with the anodic oxidation layer having a surface over which micropores having an average pore size of 6 to 40 nm are uniformly distributed.
    Type: Application
    Filed: April 9, 2001
    Publication date: March 21, 2002
    Inventors: Keiji Akiyama, Hisashi Hotta, Kazuo Maemoto
  • Publication number: 20020029708
    Abstract: A method for preparing a lithographic printing plate by means of ink jet is disclosed. The ink jet fluid contains an oleophilizing compound chosen from the group consisting of a catechol, a pyrogallol, and a salicylic acid.
    Type: Application
    Filed: May 23, 2001
    Publication date: March 14, 2002
    Inventors: Johan Loccufier, Marc Van Damme, Huub Van Aert, Govert De Baecke, Leo Oelbrandt, Luc Leenders
  • Patent number: 6352028
    Abstract: Lithographic printing is performed with printing members having a hydrophilic-surfaced metal support and a polymeric layer thereover. The polymeric layer absorbs imaging radiation and is soluble in a liquid to which ink will not adhere (e.g., fountain solution). Ordinarily, the polymeric layer is mostly removable by fountain solution. In response to absorbed imaging radiation, however, it may become permanently bound to the metal support so as to resist removal, serving as an ink-carrying oleophilic layer during printing.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: March 5, 2002
    Assignee: Presstek, Inc.
    Inventor: Ernest W. Ellis
  • Patent number: 6300040
    Abstract: The effects of interfacial transition between organic and inorganic layers of a lithographic printing member are ameliorated by incorporating an inorganic component within the matrix of the organic layer. In a first aspect, a lithographic printing plate having adjacent organic and inorganic layers is fabricated by depositing a curable polymer, softening the polymer, and integrating an inorganic material therewith. The polymer is then cured to immobilize the integrated deposition material, and the desired inorganic layer is applied over the deposited inorganic material (and any exposed portions of the polymer). In a second aspect, a graded structure is built up on a substrate in successive deposition steps. Both polymer precursors and an inorganic filler material are deposited in stages, with each stage containing a desired ratio of polymer to filler.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: October 9, 2001
    Assignee: Presstek, Inc.
    Inventor: Thomas E. Lewis
  • Publication number: 20010023647
    Abstract: A lithographic printing plate precursor comprises a grained and anodised aluminium substrate coated with a metallic layer, preferably a silver layer, on top of which is applied a layer comprising at least one sensitising material which adsorbs on to the metallic surface and thereby sensitises the system to heat mode laser exposure. Preferably, the sensitising material comprises a material which includes at least one sulphur, selenium or tellurium containing group and the sensitising layer additionally comprises a hydrophilic material. The invention provides lithographic printing plate precursors having high sensitivity which may be imagewise exposed by means of a high intensity laser beam to provide press ready plates showing high image quality, good press properties and high durability on press without the requirement for the use of intermediate film and developer chemistry.
    Type: Application
    Filed: December 1, 2000
    Publication date: September 27, 2001
    Inventor: John Michael Kittridge
  • Patent number: 6293197
    Abstract: An improved hydrophilized substrate for planographic printing is disclosed. The substrate contains a support and a hydrophilic layer over the support. The hydrophilic layer contains titanium dioxide (titania) particles. In one embodiment, the hydrophilic layer contains a mixture of coated and uncoated titanium dioxide particles, and, optionally, alumina particles. A method for preparation of the substrate and a printing member comprising the substrate are also disclosed.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: September 25, 2001
    Assignee: Kodak Polychrome Graphics
    Inventors: Joanne Ray, Greg Turner, John Hearson, Denise Howard
  • Publication number: 20010018877
    Abstract: A lithographic printing plate precursor comprises an electrochemically grained aluminium substrate, the grained surface of which is coated with a layer of gel-like amorphous colloidal oxides and hydroxides of aluminium and their hydrates incorporating metallic aluminium and inter-metallic aluminium alloys—generally at a level of below 5%—this layer being produced during the electrochemical graining process. The layer is typically present in an amount of from 0.1-20 g/m2 and at a layer thickness of 0.1-4.0 &mgr;m, the particle sizes in the said layer generally falling in the range of from 10 to 2000nm. Methods are disclosed for the preparation of said precursors via the electrochemical graining of aluminium substrates. The invention provides lithographic printing plate precursors which may be imagewise exposed by means of a high intensity laser beam to provide printing plates showing high durability on press and giving images which show good resolution and are free from background staining.
    Type: Application
    Filed: December 5, 2000
    Publication date: September 6, 2001
    Inventors: Tu Vinh Chau, Jacek Paul Obuchowicz
  • Patent number: 6279476
    Abstract: Negative-working and positive-working lithographic plate constructions include a durable hydrophilic layer; a hard, inorganic, oleophilic layer; and a substrate, which may be metal. If a metal substrate is employed, an overlying layer provides sufficient thermal insulation to prevent substantial dissipation of heat—which is necessary to achieve ablation—into the substrate. In the case of oleophilic layers employed in negative-working embodiments, certain ceramic materials are suitable, and an intermediate tying layer may be used to anchor a hydrophilic ceramic layer to the oleophilic layer. In positive-working embodiments, the oleophilic layers may be refractory compounds doped with oleophilic material. An advantage to the latter embodiments is the ability to apply traditional means of correction following imaging.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: August 28, 2001
    Assignee: Presstek, Inc.
    Inventor: Ernest W. Ellis
  • Patent number: 6238843
    Abstract: A method of preparing a planographic printing member is disclosed. In one embodiment, the method comprises forming a hydrophilic layer by thermally spraying a hydrophilic particulate material onto an ablatable layer. Typical hydrophilic materials are SiO2, Al2O3, Cr2O3, TiO2 and ZrO2. Spraying a plasma containing the hydrophilic material in an inert gas atmosphere is preferred method for forming the hydrophilic layer.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: May 29, 2001
    Assignee: Kodak Polychrome Graphics, LLC
    Inventors: Kevin Barry Ray, Christopher David McCullough
  • Patent number: 6238839
    Abstract: A lithographic printing plate precursor which comprises a metal support having provided thereon a heat-insulating layer, a metal layer having a hydrophilic surface, and a lipophilic layer which is abraded by heating or whose solubility to alkali is transformed by heating, in this order from the support.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: May 29, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadabumi Tomita, Hisashi Hotta, Akio Uesugi
  • Patent number: 6207349
    Abstract: The effects of interfacial transition between organic and inorganic layers of a lithographic printing member are ameliorated by incorporating an inorganic component within the matrix of the organic layer. In a first aspect, a lithographic printing plate having adjacent organic and inorganic layers is fabricated by depositing a curable polymer, softening the polymer, and integrating an inorganic material therewith. The polymer is then cured to immobilize the integrated deposition material, and the desired inorganic layer is applied over the deposited inorganic material (and any exposed portions of the polymer). In a second aspect, a graded structure is built up on a substrate in successive deposition steps. Both polymer precursors and an inorganic filler material are deposited in stages, with each stage containing a desired ratio of polymer to filler.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: March 27, 2001
    Assignee: Presstek, Inc.
    Inventor: Thomas E. Lewis
  • Patent number: 6073559
    Abstract: Lithographic printing members utilize, as an ink-accepting layer, a hard, inorganic, and generally covalent material that exhibits sufficient flexibility (at the deposition thicknesses envisioned) to accommodate flexing and bending. This layer may overlie a relatively heavy, metal plate substrate or support, resulting in a structure whose permanent layers all share the physical properties of inorganic materials. The printing member may also be provided with a protective layer that serves a variety of beneficial functions, including protection against handling and environmental damage and extension of plate shelf life, but which also is removed during the printing make-ready process.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: June 13, 2000
    Assignee: Presstek, Inc.
    Inventor: Ernest W. Ellis
  • Patent number: 6071369
    Abstract: According to the present invention there is provided a method for making a lithographic printing plate comprising the image-wise exposure of a heat-sensitive imaging element with a laser and developing said imaging element by rinsing it with plain water or an aqueous solution. To improve ink-uptake the imaging element is exposed on an external drum recorder whereby the pixel dwell time of the laser is above 0.1 .mu.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: June 6, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Joan Vermeersch, Marc Van Damme, Johan Van Hunsel, Fred Marland
  • Patent number: 6051365
    Abstract: Provided is a media-fluid material set which comprises a media with a support that bears a hydrophilic receiving surface together with a fluid material comprising a liquid carrier medium and a reactive transition metal complex of a fluorinated organic acid. After application of the fluid material to the hydrophilic receiving surface, the reactive complex reacts to form an ink-releasing layer. Such a media-fluid material set can be advantageously used in preparing waterless lithographic printing plates with ink-releasing layers comprising such fluorinated reaction products. Also provided are imaged waterless lithographic printing plates with such ink-releasing layers made by an ink jet printing application or by laser-induced thermal ablation, and methods of making such waterless lithographic printing plates.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: April 18, 2000
    Assignee: New England Science & Specialty Products, Inc.
    Inventor: Richard M. Kellett