Surface Contains Metal Patents (Class 101/458)
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Patent number: 10710102Abstract: 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: GrantFiled: September 8, 2017Date of Patent: July 14, 2020Assignee: POINT ENGINEERING CO., LTD.Inventors: Bum Mo Ahn, Seung Ho Park, Tae Hwan Song
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Patent number: 10626489Abstract: 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: GrantFiled: October 24, 2017Date of Patent: April 21, 2020Assignee: MATERION CORPORATIONInventors: Fritz C. Grensing, Robert E. Kusner, David J. Krus, William D. Nielsen, Karl Ziegler
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Patent number: 10532422Abstract: 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: GrantFiled: December 15, 2016Date of Patent: January 14, 2020Assignee: HITACHI METALS, LTD.Inventors: Shinji Yamamoto, Ryoji Inoue
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Patent number: 10170444Abstract: 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: GrantFiled: June 30, 2015Date of Patent: January 1, 2019Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ching-Jung Yang, Yen-Ping Wang
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Patent number: 9481922Abstract: 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: GrantFiled: June 14, 2012Date of Patent: November 1, 2016Inventors: Yitzhak Vanek, Leonardo Mendelovici
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Patent number: 8981254Abstract: 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: GrantFiled: July 28, 2011Date of Patent: March 17, 2015Assignee: Heidelberger Druckmaschinen AGInventors: Heiner Pitz, Bernhard Mechler, Rolf Spilger
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Patent number: 8877426Abstract: 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: GrantFiled: October 3, 2005Date of Patent: November 4, 2014Assignee: Acktar Ltd.Inventors: Dina Katsir, Zvi Finkelstein, Yuri Zarnitsky
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Patent number: 8462391Abstract: 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: GrantFiled: February 22, 2010Date of Patent: June 11, 2013Assignee: Heidelberger Druckmaschinen AGInventors: Ludo Kerz, Wolfram Kolbe, Martin Schmitt-Lewen
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Publication number: 20100236436Abstract: 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: ApplicationFiled: August 25, 2008Publication date: September 23, 2010Inventors: Yasushi Miyamoto, Yasuhiro Asawa, Maru Aburano, Eiji Hayakawa, Shoichi Hotate
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Patent number: 7299749Abstract: 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: GrantFiled: February 5, 2004Date of Patent: November 27, 2007Assignee: Fujifilm CorporationInventors: Tadabumi Tomita, Yoshinori Hotta
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Patent number: 7051652Abstract: 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: GrantFiled: March 28, 2002Date of Patent: May 30, 2006Assignee: Maschinenfabrik WIFAGInventors: Matthias Riepenhoff, Olivier Stehlin
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Patent number: 6929895Abstract: 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: GrantFiled: July 23, 2002Date of Patent: August 16, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuo Maemoto, Hisashi Hotta
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Patent number: 6908726Abstract: 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: GrantFiled: April 7, 2003Date of Patent: June 21, 2005Assignee: Kodak Polychrome Graphics LLCInventors: Lee Korionoff, Ting Tao, Kevin B. Ray
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Patent number: 6843175Abstract: 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: GrantFiled: April 9, 2002Date of Patent: January 18, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Ikuo Kawauchi, Tadashi Endo, Hiroji Tokunaga
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Patent number: 6832553Abstract: 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: GrantFiled: May 8, 2002Date of Patent: December 21, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Takayuki Usui
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Patent number: 6805051Abstract: 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: GrantFiled: April 18, 2003Date of Patent: October 19, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideki Miwa, Teruyoshi Yasutake, Atsushi Matsuura, Akio Uesugi
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Publication number: 20040154488Abstract: 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: ApplicationFiled: February 5, 2004Publication date: August 12, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Tadabumi Tomita, Yoshinori Hotta
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Patent number: 6764807Abstract: 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: GrantFiled: September 5, 2001Date of Patent: July 20, 2004Assignee: Kodak Polychrome Graphics LLCInventors: Kevin Barry Ray, Mark John Spowage, Christopher David McCullough
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Patent number: 6715420Abstract: 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: GrantFiled: July 1, 2002Date of Patent: April 6, 2004Assignee: Alcoa Inc.Inventors: Sallie L. Blake, Albert L. Askin, Robert E. Bombalski, Daniel L. Serafin
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Publication number: 20040055490Abstract: 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: ApplicationFiled: September 3, 2003Publication date: March 25, 2004Applicant: KONICA CORPORATIONInventor: Takeshi Sampei
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Patent number: 6681699Abstract: 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: GrantFiled: June 21, 2002Date of Patent: January 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhiro Annoura
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Patent number: 6637334Abstract: 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: GrantFiled: April 9, 2001Date of Patent: October 28, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Akiyama, Hisashi Hotta, Kazuo Maemoto
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Patent number: 6632584Abstract: 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: GrantFiled: September 8, 2000Date of Patent: October 14, 2003Assignee: Creo, Inc.Inventor: David A. Morgan
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Publication number: 20030145748Abstract: 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: ApplicationFiled: July 22, 2002Publication date: August 7, 2003Inventors: Tadashi Endo, Hisashi Hotta, Katsuyuki Teraoka, Hideki Miwa, Teruyoshi Yasutake
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Patent number: 6575094Abstract: 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: GrantFiled: June 11, 2001Date of Patent: June 10, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideki Miwa, Teruyoshi Yasutake, Atsushi Matsuura, Akio Uesugi
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Patent number: 6568325Abstract: 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: GrantFiled: March 28, 2001Date of Patent: May 27, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Hirokazu Sawada, Akio Uesugi
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Publication number: 20030084807Abstract: 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: ApplicationFiled: April 9, 2002Publication date: May 8, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Ikuo Kawauchi, Tadashi Endo, Hiroji Tokunaga
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Patent number: 6520088Abstract: 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: GrantFiled: May 3, 2001Date of Patent: February 18, 2003Assignee: Heidelberger Druckmaschinen AGInventor: Bernd Vosseler
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Patent number: 6514623Abstract: 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: GrantFiled: November 5, 1999Date of Patent: February 4, 2003Assignee: MAN Roland Druckmaschinen AGInventors: Martin Endisch, Markus Kirst, Gerhard Johner
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Publication number: 20020182538Abstract: 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: ApplicationFiled: December 20, 2001Publication date: December 5, 2002Inventors: Tadabumi Tomita, Atsushi Matsuura, Akio Uesugi, Katsuyuki Teraoka, Hisashi Hotta
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Patent number: 6440623Abstract: 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: GrantFiled: January 29, 2001Date of Patent: August 27, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Tashiro, Eiichi Kato
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Patent number: 6431067Abstract: 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: GrantFiled: June 16, 2000Date of Patent: August 13, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhiro Annoura
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Patent number: 6423468Abstract: 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: GrantFiled: November 19, 1999Date of Patent: July 23, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Hotta, Katsuyuki Teraoka
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Patent number: 6418850Abstract: 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: GrantFiled: July 11, 2001Date of Patent: July 16, 2002Assignee: Kodak Polychrome Graphics LLCInventors: Joanne Ray, Greg Turner, John Hearson, Denise Howard
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Patent number: 6420091Abstract: 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: GrantFiled: October 5, 2000Date of Patent: July 16, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Takao Nakayama, Satoshi Hoshi, Nobufumi Mori, Takashi Nakamura
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Publication number: 20020051931Abstract: 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: ApplicationFiled: December 1, 1999Publication date: May 2, 2002Inventors: TAKAHIRO MORI, KAZUYUKI NISHIO, IO MIZUSHIMA, KATSURA HIRAI
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Publication number: 20020033108Abstract: 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: ApplicationFiled: April 9, 2001Publication date: March 21, 2002Inventors: Keiji Akiyama, Hisashi Hotta, Kazuo Maemoto
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Publication number: 20020029708Abstract: 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: ApplicationFiled: May 23, 2001Publication date: March 14, 2002Inventors: Johan Loccufier, Marc Van Damme, Huub Van Aert, Govert De Baecke, Leo Oelbrandt, Luc Leenders
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Patent number: 6352028Abstract: 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: GrantFiled: February 24, 2000Date of Patent: March 5, 2002Assignee: Presstek, Inc.Inventor: Ernest W. Ellis
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Patent number: 6300040Abstract: 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: GrantFiled: July 10, 2000Date of Patent: October 9, 2001Assignee: Presstek, Inc.Inventor: Thomas E. Lewis
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Publication number: 20010023647Abstract: 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: ApplicationFiled: December 1, 2000Publication date: September 27, 2001Inventor: John Michael Kittridge
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Patent number: 6293197Abstract: 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: GrantFiled: August 17, 1999Date of Patent: September 25, 2001Assignee: Kodak Polychrome GraphicsInventors: Joanne Ray, Greg Turner, John Hearson, Denise Howard
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Publication number: 20010018877Abstract: 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: ApplicationFiled: December 5, 2000Publication date: September 6, 2001Inventors: Tu Vinh Chau, Jacek Paul Obuchowicz
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Patent number: 6279476Abstract: 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: GrantFiled: September 3, 1999Date of Patent: August 28, 2001Assignee: Presstek, Inc.Inventor: Ernest W. Ellis
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Patent number: 6238839Abstract: 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: GrantFiled: August 22, 2000Date of Patent: May 29, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadabumi Tomita, Hisashi Hotta, Akio Uesugi
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Patent number: 6238843Abstract: 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: GrantFiled: February 25, 1999Date of Patent: May 29, 2001Assignee: Kodak Polychrome Graphics, LLCInventors: Kevin Barry Ray, Christopher David McCullough
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Patent number: 6207349Abstract: 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: GrantFiled: March 18, 1999Date of Patent: March 27, 2001Assignee: Presstek, Inc.Inventor: Thomas E. Lewis
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Patent number: 6073559Abstract: 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: GrantFiled: September 11, 1998Date of Patent: June 13, 2000Assignee: Presstek, Inc.Inventor: Ernest W. Ellis
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Patent number: 6071369Abstract: 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: GrantFiled: October 14, 1997Date of Patent: June 6, 2000Assignee: Agfa-Gevaert, N.V.Inventors: Joan Vermeersch, Marc Van Damme, Johan Van Hunsel, Fred Marland
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Patent number: 6051365Abstract: 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: GrantFiled: May 21, 1998Date of Patent: April 18, 2000Assignee: New England Science & Specialty Products, Inc.Inventor: Richard M. Kellett