Including Nonelectrophoretic Coating Patents (Class 204/486)
-
Publication number: 20020155214Abstract: Processes for the integration of illuminated displays with articles of fabric or textiles are described. In one aspect, a rear electrode of an electroluminescent panel is formed directly onto a fabric section substrate by the following process, a formed image is placed over a fabric section to define an area for display and a catalyst is applied to such display area; the fabric section display area with catalyst thereon is immersed in an electroless plating bath and subsequently removed, allowing a chemical reduction to occur in the aqueous solution; such fabric section is immersed in an electrode bath to form an electrode layer integrated with the fabric section and patterned in the associated image. In another aspect, a process is used to form an insulative layer for encapsulating the fabric section substrate having a rear electrode. In still another aspect, process is used to form the layers of an electroluminescent panel integral with a substrate.Type: ApplicationFiled: March 22, 2002Publication date: October 24, 2002Inventors: Matthew Murasko, Patrick J. Kinlen
-
Publication number: 20020151246Abstract: An electrophoretic display device is provided with an improved display quality by distributing an electrophoretic liquid mixture containing electrophoretic particles to respective pixels in substantially equal amounts, thereby obviating a display density fluctuation due to a difference in distributed amount of the electrophoretic particles at the respective pixels. The equal distribution is performed through a process including the use of a temporary adsorbing member carrying the electrophoretic particles in an electrostatically adsorbed form in a pattern corresponding to an arrangement pattern, followed by transfer of the electrophoretic particles to the respective pixels, or a process including distribution of a distribution liquid containing the electrophoretic particles to the respective pixels followed by a step of adding the dispersion liquid.Type: ApplicationFiled: June 6, 2002Publication date: October 17, 2002Applicant: CANON KABUSHIKI KAISHAInventors: Tsutomu Ikeda, Masahiro Nakanishi
-
Patent number: 6458261Abstract: An image is reproduced and transferred onto a substrate by (a) providing a positive electrode having a continuous passivated surface moving at constant speed; (b) forming on the positive electrode surface dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of a colloid present in an electrocoagulation printing ink; and (c) bringing a substrate into contact with the dots of colloid to cause transfer of same onto the substrate. Step (b) is carried out by providing a series of negative electrodes having passivated surfaces spaced from the positive electrode surface by a constant gap; coating the positive electrode surface with an olefin; filling the electrode gap with the ink; applying to the negative electrodes a pulsed bias voltage; and applying to selected ones of the negative electrodes a trigger voltage sufficient to cause point-by-point selective coagulation and adherence of the colloid onto the olefin-coated positive electrode surface.Type: GrantFiled: January 31, 2001Date of Patent: October 1, 2002Assignee: Elcorsy Technology Inc.Inventors: Adrien Castegnier, Guy Castegnier
-
Patent number: 6458260Abstract: Methods of forming face plate assemblies are described. In one implementation, a substrate is patterned with photoresist and a first phosphor-comprising material is formed over first surface areas of the substrate. The photoresist is stripped leaving some of the first phosphor-comprising material over substrate areas other than the first areas. Photoresist is again formed over the substrate and processed to expose second substrate areas which are different from the first substrate areas. In a preferred aspect, processing the photoresist comprises using a heated aqueous developing solution comprising an acid, e.g. lactic acid, effective to dislodge and remove first phosphor-comprising material from beneath the developed photoresist.Type: GrantFiled: January 12, 2001Date of Patent: October 1, 2002Assignee: Micron Technology, Inc.Inventor: Jefferson O. Nemelka
-
Patent number: 6447662Abstract: A process for pretreating surfaces made from steel, galvanised steel and/or aluminum and/or alloys thereof, wherein, in a first process stage, phosphating is performed using a low-nickel zinc phosphating solution; in a second process stage, the phosphated surfaces are post-rinsed using an aqueous solution which contains 0.001 to 10 g/l of lithium ions; copper ions and/or silver ions; and, in a third process stage, a low-lead cathodically depositable electrocoating lacquer is applied which contains no more than 0.05 wt. % of lead, relative to the dry solids content of the lacquer.Type: GrantFiled: April 6, 2001Date of Patent: September 10, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Jan-Willem Brouwer, Bernd Schenzle, Peter Kuhm, Winfried Wichelhaus, Helmut Endres
-
Patent number: 6440286Abstract: A method for forming double-layer coatings excellent in smoothness and resistant to yellowing is provided which comprises electrodepositing a cationic electrodeposition coating composition to form an uncured cationically electrodeposited coating, applying an intermediate coating composition to said uncured coating to form an uncured intermediate coating, and heating both uncured coatings simultaneously, said cationic electrodeposition coating composition containing a sulfonium group- and propargyl group-containing resin composition.Type: GrantFiled: December 28, 1999Date of Patent: August 27, 2002Assignee: Nippon Paint Co., Ltd.Inventors: Hiroyuki Sakamoto, Sho Takeshita, Ichiro Kawakami, Satoru Uchidoi, Takao Saito
-
Patent number: 6406606Abstract: An electrocoagulation printing ink contains electrolytically coagulable polymer, soluble electrolyte, coloring agent, and liquid medium, where electrocoagulability is obtained by an electric circuit comprised of capacitor and resistor under constant voltage with the time constant of 0.02 seconds and the electrocoagulability obtained with the time constant of 0.09 seconds have a ratio from 1:1.5 to 1:3.0, hence improving the gradation reproducibility. Further, bisphenol sulfonic acid polymer can be used as a dispersant, and/or, a pigment in which the particle size of the pigment at 50% of the volume accumulation is 0.3 to 2 &mgr;m when dispersed in the ink and a ratio of particles with a particle size equal to or less than 0.2 &mgr;m is equal to or less than 25% by weight in the particle size distribution of the pigment, thereby producing a print free of undesirable background in its non-image region and high of quality.Type: GrantFiled: March 17, 2000Date of Patent: June 18, 2002Assignee: Toyo Ink Mfg. Co., Ltd.Inventors: Atsushi Betto, Tetsu Otsuji, Katsuhiko Sawamura, Hiroyuki Kawashima
-
Patent number: 6398934Abstract: A two-component concentrate which includes an aqueous dispersion of a cathodically depositable binder having groups comprising active hydrogen that are cross-linkable using blocked polyisocyanate, as the binder component, and an anhydrous, organic solution of an oxime-blocked isocyanate-functional adduct of aromatic polyisocyanate and at least one compound comprising at least one group capable of addition towards isocyanate and at least one tertiary amino group, as the cross-linking component is used for the preparation of cathodic electrodeposition coating compositions.Type: GrantFiled: December 27, 2000Date of Patent: June 4, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Klausjoerg Klein, Helmut Hoenig, Georg Pampouchidis, Herbert Matzer, Manfred Valtrovic
-
Publication number: 20020053515Abstract: Methods for use in the production of a display include providing a substrate assembly of a face plate of the display including a conductive surface at a first side thereof. One or more projections extend from the first side of substrate assembly. A patternable material, e.g., electrophoretically depositable resist, is electrophoretically deposited on at least the conductive surface and adjacent the projections, e.g., spacers such as nonconductive spacers or spacers that have at least portions thereof that are slightly conductive. The method may further include patterning the patternable material for use in deposition of light emitting elements on the conductive surface. Light emitting elements of one or more colors may be formed. In addition, the substrate assembly including the conductive surface may have one or more nonconductive regions formed on the conductive surface; the one or more nonconductive regions having a predetermined thickness.Type: ApplicationFiled: November 9, 2001Publication date: May 9, 2002Applicant: Micron Technology, Inc.Inventor: Jefferson O. Nemelka
-
Publication number: 20020050457Abstract: A method for forming double-layer coatings excellent in smoothness and resistant to yellowing is provided which comprises electrodepositing a cationic electrodeposition coating composition to form an uncured cationically electrodeposited coating, applying an intermediate coating composition to said uncured coating to form an uncured intermediate coating, and heating both uncured coatings simultaneously, said cationic electrodeposition coating composition containing a sulfonium group- and propargyl group-containing resin composition.Type: ApplicationFiled: December 28, 1999Publication date: May 2, 2002Inventors: HIROYUKI SAKAMOTO, SHO TAKESHITA, ICHIRO KAWAKAMI, SATORU UCHIDOI, TAKAO SAITO
-
Publication number: 20020043464Abstract: A coating film-forming method comprising a first step which comprises coating a cationic eletrodeposition coating composition (A) containing an electrically conducting agent, followed by washing with water and heat curing and drying to form a cured cationic electrodeposition coating film; a second step which comprises coating such an anionic electrodeposition coating composition (B) that a coating film formed therefrom has a chromatic color or a white color as an achromatic color onto the cured cationic electrodeposition coating film, followed by washing with water, and removing water by preheating or air blowing to form a non-cured anionic electrodeposition coating film; and a third step which comprises coating a topcoating composition (C) thereonto to form a non-cured topcoating film, and heat curing and drying a resulting laminated coating film simultaneously.Type: ApplicationFiled: August 23, 2001Publication date: April 18, 2002Inventors: Shinji Miyatake, Akira Tominaga, Hidehiko Haneishi
-
Patent number: 6368480Abstract: Methods for use in the producing of a display include providing a substrate assembly of a face plate of the display including a conductive surface at a first side thereof. One or more projections extend from the first side of substrate assembly. A patternable material is electrophoretically deposited on at least the conductive surface and adjacent the projections. The method may further include patterning the patternable material for use in deposition of light emitting elements on the conductive surface. Light emitting elements of one or more colors may be formed. In addition, the substrate assembly including the conductive surface may have one or more nonconductive regions formed on the conductive surface; the one or more nonconductive regions having a predetermined thickness. A layer of patternable material is formed by electrophoresis over the conductive surface and over the one or more nonconductive regions.Type: GrantFiled: August 16, 2000Date of Patent: April 9, 2002Assignee: Micron Technology, Inc.Inventor: Jefferson O. Nemelka
-
Patent number: 6368719Abstract: A process for preparing a multi-layer coating on an electrically conductive automotive body or an electrically conductive automotive body part by applying a cathodic electrodeposition coating layer, optionally a further coating layer and an outer clear coating, in which the cathodic electrodeposition coating layer of a cathodic electrodeposition coating composition is applied which, as the cathodic electrodeposition binder, contains a seed polymer with an amine value of 30 to 100 mg KOH/g and a hydroxyl value of 50 to 200 mg KOH/g, which can be prepared by radical polymerisation of 70 to 97 wt-% of a monomer mixture comprising hydroxy-functional olefinically unsaturated monomer and amino-functional olefinically unsaturated monomer in the presence of 3 to 30 wt-% of an aminoepoxy resin.Type: GrantFiled: June 12, 2000Date of Patent: April 9, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Ludwig Siever, Walter Kuehhirt, Klausjoerg Klein, Karl-Friedrich Doessel
-
Publication number: 20020011412Abstract: Process for the production of a three-dimensional substrate provided with a protective and decorative laminar structure, in which a primer layer of a coating composition (I) which is electrically conductive in the stoved state is applied without spraying onto an electrically conductive substrate and stoved, whereupon a substrate not yet in the desired three-dimensional shape is shaped, whereupon a second coating layer of an electrophoretically depositable coating composition (II) is electrophoretically deposited and stoved and whereupon a plastic film is applied.Type: ApplicationFiled: January 31, 2000Publication date: January 31, 2002Inventors: JOACHIM BLUM, KLAUSJORG KLEIN
-
Patent number: 6342144Abstract: The invention provides a cured multilayer coating having improved properties and a process for the production of said cured multilayer coating.Type: GrantFiled: December 15, 1999Date of Patent: January 29, 2002Assignee: BASF AktiengesellschaftInventor: Timothy S. December
-
Patent number: 6334940Abstract: Disclosed is a coating method of intermediate-coating-less, which sufficiently keeps excellent appearance, weather resistance and corrosion resistance equal to a three layer coating in conventional technology. The method of the present invention comprises: electrocoating an aqueous paint composition comprising at least two sort of resins which are insoluble with each other, a curing agent and a pigment, on an electrically conductive substrate, heating it to form a layer separation, and then curing to form a plural layered cured coating having at least two layers, wherein a concentration of the pigment is distributed such that a pigment concentration (a) in the resin layer directly contacting air is relatively higher than a pigment concentration (b) in the resin layer directly contacting the electrically conductive substrate.Type: GrantFiled: November 17, 2000Date of Patent: January 1, 2002Assignee: Nippon Paint Co., Ltd.Inventors: Hisaichi Muramoto, Takefumi Yamamoto
-
Patent number: 6319381Abstract: Methods of forming face plate assemblies are described. In one implementation, a substrate is patterned with photoresist and a first phosphor-comprising material is formed over first surface areas of the substrate. The photoresist is stripped leaving some of the first phosphor-comprising material over substrate areas other than the first areas. Photoresist is again formed over the substrate and processed to expose second substrate areas which are different from the first substrate areas. In a preferred aspect, processing the photoresist comprises using a heated aqueous developing solution comprising an acid, e.g. lactic acid, effective to dislodge and remove first phosphor-comprising material from beneath the developed photoresist. A second phosphor-comprising material is formed over the substrate and the exposed second areas, with trace deposits being left over other substrate areas.Type: GrantFiled: June 11, 1998Date of Patent: November 20, 2001Assignee: Micron Technology, Inc.Inventor: Jefferson O. Nemelka
-
Patent number: 6280592Abstract: A hood latch mechanism having interengaging pivot elements and pins for pivotally carrying the elements, first and second parts of a frame which are placed on opposite side of the pivot elements, the parts being held together tightly by pins pivotally carrying the pivot elements on the frame parts, springs biasing the pivoting elements to predetermine positions away from the hasp catched position, the pivotal elements and pins having a coating thereon of non-conductive resin and lubricious solid film with the frame and springs having a cathodic electropainted coating thereon, the coatings permitting manual override of the springs to facilitate release of the catched position.Type: GrantFiled: July 2, 1999Date of Patent: August 28, 2001Assignee: Ford Global Technologies, Inc.Inventors: Luigi Mastrofrancesco, Jeff LaDuke, Ronald V. Lebeck
-
Patent number: 6224729Abstract: An anode having a passive oxide film thereon and made of an iron alloy consisting essentially of at least 20 wt. % Cr, 5 to 15 wt. % Ni, 1 to 2 wt. % Si, 0.9 to 1.5 wt. % Mn and 0.1 to 0.3 wt. % C with the balance consisting of iron and unavoidable impurities is used for reproducing an image by electrocoagulation of a colloid. Such an anode can be thoroughly cleaned without undergoing abrasion and/or pitting during cleaning. The alloy composition does not adversely affect passivation.Type: GrantFiled: October 29, 1999Date of Patent: May 1, 2001Assignee: Elcorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 6210553Abstract: An image is reproduced and transferred onto a substrate by (a) providing a positive electrode having a continuous passivated surface moving at substantially constant speed along a predetermined path, said passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink containing a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colored, coagulated colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.Type: GrantFiled: October 29, 1999Date of Patent: April 3, 2001Assignee: ElCorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 6200446Abstract: A pigment dispersion composition for fill-in coloration of an aluminum or aluminum alloy oxide film is provided, which comprises at least a pigment, a pigment dispersant, a water-soluble organic solvent, water, and a water-soluble amine and/or a derivative thereof. Pigment particles of the pigment dispersion composition are filled in micropores of the aluminum oxide film to a great depth, so that a vivid color film having excellent weatherability and fastness can be provided. In addition, the composition offers a high adaptability for repetitive coloration, and allows pigment deposited on the film surface other than in the micropores to be washed away by simple immersion in still water or running water.Type: GrantFiled: January 30, 1997Date of Patent: March 13, 2001Assignee: Sakura Color Products CorporationInventors: Hiroshi Inoue, Shigeyasu Inoue, Seishiro Ito
-
Patent number: 6117294Abstract: A black matrix material for increasing resolution and contrast of field emission displays is disclosed. The black matrix material is preferably deposited by electrophoresis in the interstitial regions between phosphor pixels of the faceplate. By this technique, high resolution and/or small surface area field emission displays may be manufactured. The black matrix material does not brown when subjected to the conditions associated with the manufacture of field emission displays, is chemically inert and remains stable under vacuum conditions and electron bombardment. The black matrix material is selected from boron carbide, silicon carbide, tungsten carbide, vanadium carbide and mixtures thereof.Type: GrantFiled: April 7, 1997Date of Patent: September 12, 2000Assignee: Micron Technology, Inc.Inventor: Robert T. Rasmussen
-
Patent number: 6093297Abstract: A method for depositing solid electrolyte layer includes the steps of depositing a solid electrolyte layer on an electrode substrate by an electrophoretic deposition process, firing the solid electrolyte layer at a temperature of 1,300.degree. C. or less, and depositing another electrolyte layer on the fired solid electrolyte layer by a CVD-EVD process. In accordance with the method, thin and sufficiently dense solid electrolyte layers which are suitable for solid electrolyte fuel cells can be easily produced.Type: GrantFiled: September 29, 1998Date of Patent: July 25, 2000Assignee: NKK CorporationInventors: Keiji Tomura, Tohru Shiomitsu, Takashi Ogawa, Yasuhiko Manabe, Yotaro Ohno
-
Patent number: 6080296Abstract: A method of applying several coats to an electrically conducting substrate by applying a primer coat using electrophoresis, stoving the primer coat, applying directly to the stoved primer coat a colored and/or special effect coating layer made of an aqueous coating material containing color and/or special effect pigments and including as a binder: A) 50 to 85% by weight of one of more hybrid binder vehicles based on polyesters and on (meth)acrylic copolymers with a hydroxyl number of 100 to 350 mg KOH/g and an acid number of 20 to 60 mg KOH/g; B) 0 to 20% by weight of one or more of binder vehicles which are different from A); and C) 15 to 50% by weight of one or more free or blocked polyisocyanates and/or one or more triazine-based components which crosslink with the hydroxyl groups of component A) with the formation of ether and/or ester groups, at least 50% by weight of the (meth)acrylic copolymers of component A) being produced in the presence of at least 20% by weight of the polyester or polyesters of coType: GrantFiled: July 27, 1999Date of Patent: June 27, 2000Assignee: Herberts GmbHInventors: Frank Lieverz, Volker Ducoffre, Andreas Runkel, Herbert Kalke, Wolfgang Goldner, Walter Schubert
-
Patent number: 6061109Abstract: A method of manufacturing a color filter for a multicolor liquid crystal display unit comprises the steps of forming an organic high-polymer color filter layer over a surface of a substrate. A protective film is then formed on the color filter layer and on the surface of the substrate. Thereafter, a thin metal electroless plating film is formed on the protective film. The electroless plating film is then patterned to form a shading film.Type: GrantFiled: March 28, 1996Date of Patent: May 9, 2000Assignee: Seiko Instruments Inc.Inventors: Mitsuru Suginoya, Tsutomu Matsuhira, Toshihiko Harajiri
-
Patent number: 6045674Abstract: An image is reproduced and transferred onto a substrate by (a) providing a positive electrode having a continuous passivated surface moving at constant speed and defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of a colloid present in an electrocoagulation printing ink containing a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.Type: GrantFiled: October 29, 1999Date of Patent: April 4, 2000Assignee: Elcorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 5980714Abstract: A cataphoretic electrodeposition process for forming a fiber polyetherimide composite using a stable emulsion comprising a polyetherimide resin, neutralization agent, cosolvent, solvent, ring opening agent, and water. The fibers and an anode are place in the emulsion, a current is applied, and the polyetherimide coats the fibers.Type: GrantFiled: July 31, 1998Date of Patent: November 9, 1999Assignee: General Electric CompanyInventors: Robert Puyenbroek, Uwe Siegfried Wascher
-
Patent number: 5925228Abstract: Electrophoretically active sol-gel processes to fill, seal, and/or density porous, flawed, and/or cracked coatings on electrically conductive substrates. Such coatings may be dielectrics, ceramics, or semiconductors and, by the present invention, may have deposited onto and into them sol-gel ceramic precursor compounds which are subsequently converted to sol-gel ceramics to yield composite materials with various tailored properties.Type: GrantFiled: January 9, 1997Date of Patent: July 20, 1999Assignee: Sandia CorporationInventors: Janda K. Panitz, Scott T. Reed, Carol S. Ashley, Richard A. Neiser, William C. Moffatt
-
Patent number: 5908541Abstract: A polychromic image is reproduced and transferred onto a substrate by (a) providing a positive electrode moving at substantially constant speed along a predetermined path, the electrode having a passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink containing a coloring agent; and (c) bringing an endless belt moving at the same speed as the positive electrode and having on one side thereof a colloid retaining surface adapted to releasably retain dots of electrocoagulated colloid, into contact with the positive electrode active surface to cause transfer of the dots of colored, coagulated colloid from the positive electrode active surface onto the colloid retaining surface of the belt and to thereby imprint same with the image.Type: GrantFiled: September 9, 1997Date of Patent: June 1, 1999Assignee: Elcorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 5863402Abstract: An electrocoagulation printing method comprises the steps of (a) providing a positive electrolytically inert electrode having a continuous passivated surface moving at substantially constant speed along a predetermined path, the passivated surface defining a positive electrode active surface; (b) coating the positive electrode active surface with an olefinic substance and silica to form on the surface micro-droplets of olefinic substance containing the silica; (c) forming on the olefin and silica-coated positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink comprising a liquid colloidal dispersion containing the electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte and a coloring agent; and (d) bringing a substrate into contact with the olefin and silica-coated positive electrode active surface to cause transferType: GrantFiled: September 9, 1997Date of Patent: January 26, 1999Assignee: Elcorsy Technology Inc.Inventors: Adrien Castegnier, Normand Lepine
-
Reducing or avoiding surface irregularities in electrophoretic painting of phosphated metal surfaces
Patent number: 5851371Abstract: The phenomenon of "mapping" (surface defects) after electrophoretic painting over phosphate conversion coatings passivated with hexavalent chromium containing passivating compositions can be avoided or reduced by keeping the surface being treated constantly wet from the time it is conversion coated until it is electrophoretically painted, by preceding the passivating step by treatment with an aqueous liquid treatment composition comprising at least one of the following components: (A) a water soluble and/or water dispersible polymer with a weight average molecular weight of at least 500; (B) fluorometallic acids and anions thereof, the molecules of which consist of (i) at least one atom of boron, silicon, zirconium, iron, aluminum, or titanium, (ii) at least four fluorine atoms, and, optionally, (iii) one or more atoms of oxygen, hydrogen, or both; (C) zirconium salts of ethylenediamine tetraacetic acid; and (D) alkali metal and ammonium zirconyl carboxylates and carbonates; or by replacing the chromium contaType: GrantFiled: June 16, 1997Date of Patent: December 22, 1998Assignee: Henkel CorporationInventors: Lester E. Steinbrecher, Timothy J. Zens -
Patent number: 5762773Abstract: High resolution color displays for field emission displays are formed by applying a grille to a screen layer, the grille having a set of holes formed therein exposing areas of the screen layer. A layer of photoresist is applied to the grille and the exposed areas of the screen layer, whereby a plurality of photoresist-covered screen layer areas are defined. One set of the plurality of photoresist-covered screen layer areas is fixed, whereby a fixed set and an unfixed set are defined. The photoresist is removed from the unfixed set and a light emitting substance is deposited on the exposed screen layer area. The fixed set of photoresist is plasma etched.Type: GrantFiled: January 19, 1996Date of Patent: June 9, 1998Assignee: Micron Display Technology, Inc.Inventor: Robert T. Rasmussen
-
Patent number: 5759376Abstract: The invention concerns a method for the electrochemical deposition of hydroxyapatite layers onto metal and ceramic surfaces, the actual electrochemical coating being combined with a pre-coating of the substrates by sol-gel processes, using a calcium and (hydrogen) phosphate-containing electrolyte by means of pulsed direct current. Materials coated in this way are used in the form of biocompatible implants in human and veterinary medicine and are distinguished by particularly high grow-in rates. In contrast to conventional methods of generating hydroxyapatite layers (conventional or microwave sintering of hydroxyapatite produced by the wet-chemical method, deposition by other electrochemical, plasma or laser-aided methods or by sol-gel techniques), this method is distinguished by the application of uniform hydroxyapatite coatings which adhere well and have a small amorphous portion and an optimum layer thickness (5-25 .mu.Type: GrantFiled: March 7, 1997Date of Patent: June 2, 1998Assignee: Dot Dunnschicht- Und Oberflaechen-technologie GmbHInventors: Joachim Teller, H. Georg Neumann
-
Patent number: 5755944Abstract: A method for creating a solid layer (36A or 52A) through which openings (38 or 54) extend entails subjecting particles (30) suspended in a fluid (26) to an electric field (E.sub.A) to cause a number of the particles to move towards, and accumulate over, a structure placed in the fluid. The structure, including the so-accumulated particles, is removed from the fluid. Solid material is deposited over the structure at least in the space between the so-accumulated particles. The particles, including any overlying material (36B or 52B), are removed. The remaining solid material forms the solid layer through which openings extend at the locations of the so-removed particles. The structure is typically a layer is then typically either a gate layer for the electron-emitting device or a layer used in forming the gate layer.Type: GrantFiled: June 7, 1996Date of Patent: May 26, 1998Assignee: Candescent Technologies CorporationInventors: Duane A. Haven, Esther Sluzky, John M. Macaulay
-
Patent number: 5714047Abstract: An acid aqueous solution useful for phosphating metal surfaces and a phosphating process using same; said solution, which is characterized by its containing hydroxylamine phosphate as accelerator and a cationic surfactant can be applied to metal surfaces based on iron, zinc, aluminium and alloys thereof, and is specifically suitable for preventing the formation of white spots.Type: GrantFiled: October 9, 1996Date of Patent: February 3, 1998Assignee: Novamax ITB S.r.l.Inventor: Cesare Pedrazzini
-
Patent number: 5707505Abstract: A method is described for the electrophoretic enamelling of chromatizable metal surfaces. Improved adhesion of the enamel is achieved by a chromating pretreatment of the metal surfaces, the chromated metal surfaces being kept wet from the time of their being chromated up to the time of their introduction into the bath for the electrophoretic enamelling.Type: GrantFiled: September 28, 1994Date of Patent: January 13, 1998Assignee: Gesellschaft fur Technische Studien Entwicklung Planung mbHInventor: Rainer Huss
-
Patent number: 5702578Abstract: A surface coating applied to a subject surface includes an undercoating, a color base layer, coated over the undercoating layer, which contains a coloring material, and a color clear layer, coated over the color base layer, which contains a coloring dye of a hue within +/-10 from a hue of the coloring material of the base color layer on the 100-division Mansell hue ring.The color clear layer may be applied with a paint spray device while rotating the subject surface around an axis and continuously moving the subject surface along the axis to form a spiral pattern of paint spray relative to and around the subject surface at regular pitches. Preferably, the ratio of each of the regular pitches to a width of the pattern of paint spray is less than 0.3.Type: GrantFiled: March 19, 1996Date of Patent: December 30, 1997Assignee: Mazda Motor CorporationInventors: Hironori Umeda, Tohru Mashimo, Kazuo Hironaka, Tadamitsu Nakahama, Takakazu Yamane, Makoto Aizawa, Yukifumi Taniguchi
-
Patent number: 5702583Abstract: The invention relates to a method and an apparatus for selectively electroplating apertured products. The products are masked in accordance with the intended plating and subsequently exposed to an electrolyte in order to electroplate the products. For masking purposes a fully closed photoresist layer is electrophoretically applied to the products, and after drying of the photoresist layer, the products are covered with a photomask in accordance with the locations to be plated, after which exposure takes place. Then the photoresist layer is partially removed, while the remaining part of the photoresist layer remains behind on the products, to serve as a mask for the metal products upon electroplating.Type: GrantFiled: September 25, 1995Date of Patent: December 30, 1997Assignee: Meco Equipment Engineers B.V.Inventors: Jorg Werner Rischke, Wilhelmus Gijsbertus Leonardus van Sprang
-
Patent number: 5702581Abstract: A simplified process for producing a corrosion-protecting, well adhering lacquer coating, and the workpieces obtained thereby, is described. The process comprisessubjecting a metal substrate to a pre-treatment by spray or dip phosphate treatment and without subsequent passivation treatment, optionally after a drying,carrying out an electrophoretic dip lacquer coating of the metal substrate treated in this way wherein an electro dip lacquer is used which contains bismuth in the form of an organic bismuth complex and/or a bismuth salt of an organic carboxylic acid in a content of 0.1 to 5 wt. % calculated as bismuth and related to the binder solids in the electro dip lacquer.Type: GrantFiled: May 23, 1996Date of Patent: December 30, 1997Assignee: Herberts GmbHInventors: Klaus Gunter Kerlin, Peter Hamacher
-
Patent number: 5693206Abstract: An electrocoagulation printing apparatus comprises a positive cylindrical electrode having a central longitudinal axis extending horizontally and a passivated surface defining a positive electrode active surface, the positive electrode being formed of an electrolytically inert metal; a drive mechanism for rotating the positive electrode about the longitudinal axis thereof at a substantially constant speed; a coating device for coating the positive electrode active surface with an olefinic substance and a metal oxide to form on the surface micro-droplets of olefinic substance containing the metal oxide; and a printing head for forming on the olefin and metal oxide-coated positive electrode active surface a plurality of dots of colored, coagulated colloid by electrocoagulation of an electrolytically coagulable colloid in the presence of a coloring agent, the dots of colored, coagulated colloid being representative of a desired image.Type: GrantFiled: June 18, 1996Date of Patent: December 2, 1997Assignee: Elcorsy Technology Inc.Inventors: Adrien Castegnier, Normand Lepine, Gilles Gadbois, Christian Laplante
-
Patent number: 5690803Abstract: An improved electrocoagulation printing method comprising the steps of (a) providing a positive electrode formed of an electrolytically inert metal and having a continuous passivated surface moving at substantially constant speed along a predetermined path, the passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink comprising a liquid colloidal dispersion containing the electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte and a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colored, coagulated colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.Type: GrantFiled: January 27, 1997Date of Patent: November 25, 1997Assignee: Elcorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 5690801Abstract: An improved electrocoagulation printing method comprising the steps of (a) providing a positive electrolytically inert electrode having a continuous passivated surface moving at substantially constant speed along a predetermined path, the passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink comprising a liquid colloidal dispersion containing said electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte and a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colored, coagulated colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.Type: GrantFiled: January 21, 1997Date of Patent: November 25, 1997Assignee: Elcorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 5690802Abstract: An improved electrocoagulation printing method comprising the steps of (a) providing a positive electrolytically inert electrode formed of a trivalent metal and having a continuous passivated surface moving at substantially constant speed along a predetermined path, the passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink comprising a liquid colloidal dispersion containing the electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte and a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colored, coagulated colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.Type: GrantFiled: January 21, 1997Date of Patent: November 25, 1997Assignee: Elcorsy Technology Inc.Inventor: Adrien Castegnier
-
Patent number: 5681436Abstract: An improved electrocoagulation printing method comprising the steps of (a) providing a positive electrode formed of an electrolytically inert metal and having a continuous passivated surface moving at substantially constant speed along a predetermined path, the passivated surface defining a positive electrode active surface; (b) forming on the positive electrode active surface a plurality of dots of colored, coagulated colloid representative of a desired image, by electrocoagulation of an electrolytically coagulable colloid present in an electrocoagulation printing ink comprising a liquid colloidal dispersion containing the electrolytically coagulable colloid, a dispersing medium, a soluble electrolyte and a coloring agent; and (c) bringing a substrate into contact with the dots of colored, coagulated colloid to cause transfer of the colored, coagulated colloid from the positive electrode active surface onto the substrate and thereby imprint the substrate with the image.Type: GrantFiled: February 29, 1996Date of Patent: October 28, 1997Assignee: Elcorsy Technology Inc.Inventors: Adrien Castegnier, Normand Lepine
-
Patent number: 5676812Abstract: An electroconductive adhesive member comprises a substrate and an adhesive resin layer containing electroconductive particles. The layer is formed on the substrate by electrodeposition coating.Type: GrantFiled: July 13, 1993Date of Patent: October 14, 1997Assignee: Canon Kabushiki KaishaInventor: Susumu Kadokura
-
Patent number: 5667851Abstract: A vacuum metallized polyimide film comprising an aromatic polyimide layer containing a hydrocarbyl tin compound in oxidation states (II) or (IV) as an additive and a metal plated layer bonded integrally with a high bonding strength or high adhesion through a vacuum deposited metal layer without the use of an adhesive. The metallized polyimide film can be used for flexible printed circuits and multilayer printed wiring boards, as well as for heaters, antennas and antistatic films.Type: GrantFiled: May 30, 1996Date of Patent: September 16, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: James R. Edman, Donald J. Coulman
-
Patent number: 5667655Abstract: A method for use in the construction of a color display screen using deposition of a plurality of electroluminescent materials onto a substrate bearing said screen. The method comprises the forming operations a), b), and c) in any sequence: a) forming on the substrate a first pattern of deposition sites covered with a first material selectively strippable by a first agent; b) forming on the substrate a second pattern of deposition sites covered with a second material strippable by a second agent but not significantly attacked by said first agent; and c) forming on the substrate a matrix surrounding the first and second patterns of deposition sites. The method includes thereafter performing a first stripping of the first material with the first agent to reveal first deposition sites within the matrix and performing a first depositing of a first electroluminescent material within the first revealed deposition sites.Type: GrantFiled: April 15, 1996Date of Patent: September 16, 1997Assignee: Zenith Electronics CorporationInventors: Philomena C. Libman, Felix E. Tello
-
Patent number: 5597465Abstract: An acid aqueous solution useful for phosphating metal surfaces and a phosphating process using same; said solution, which is characterized by its containing hydroxylamine phosphate as accelerator and a cationic surfactant, preferably a quaternary ammonic surfactant, can be applied to metal surfaces based on iron, zinc, aluminium and alloys thereof, and is specifically suitable for preventing the formation of white spots.Type: GrantFiled: July 31, 1995Date of Patent: January 28, 1997Assignee: Novamax ITB s.r.l.Inventor: Cesare Pedrazzini
-
Patent number: 5593562Abstract: A method of fabricating an anode plate 18 for use in a field emission device comprising the steps of providing a transparent substrate 20 and depositing a layer of a transparent, electrically conductive material 24 on a surface of the substrate. Next, portions of the layer of conductive material 24 are removed to form regions of the conductive material. Luminescent material 26 is then applied to the conductive regions 24, and a layer of electrically conductive material 23 is applied to the luminescent material 26. Outer portions of the conductive material 23 and an outer portion 27 of at least some of the particles 25 of the luminescent material are thereafter removed.Type: GrantFiled: February 20, 1996Date of Patent: January 14, 1997Assignee: Texas Instruments IncorporatedInventor: Kenneth G. Vickers
-
Patent number: 5589048Abstract: A method for the production of a radiographic screen comprising the following steps:1) dispersing phosphor particles in an organic liquid in the presence of a charge controlling agent that charges said phosphor particles with a positive or negative net charge,2) arranging said dispersion between a pair of electrodes, wherein one of said electrodes is or carries a conductive support of said radiographic screen,3) applying and maintaining between said electrodes a sufficiently high direct current voltage to deposit charged phosphor particles onto said conductive support, and4) separating said support carrying electrophoretically deposited phosphor particles from said organic liquid,wherein the dispersing of said phosphor particles proceeds by means of an organic surface active compound acting as dispersing agent for said phosphor particles, and said phosphor particles are electrostatically charged through adsorption thereon of ionic components of said organic surface active compound and/or through adsorption ofType: GrantFiled: February 17, 1994Date of Patent: December 31, 1996Assignee: AGFA-Gevaert, N.V.Inventors: Nikolaas De Jaeger, Guy Damen, Gerhard Winter, Jan Van Havenbergh