Patents Examined by Janyce Bell
  • Method of removing coated film from substrate edge surface and apparatus for removing coated film
    Patent number: 5939139
    Abstract: A method of removing a coated film from an edge surface of a substrate comprising the steps of (a) forming an insulating film for protecting a circuit pattern of a substrate by pouring an insulating resin solution on a circuit-pattern formation surface of the substrate, (b) rotating the substrate having the insulating film coated thereon, (c) removing the insulating film by pouring a solvent on the edge surface of the substrate, while the substrate is being rotated, and (d) accelerating dehydration of the insulating film by taking at least one action of spraying a gas to the edge surface of the substrate and performing a local evacuation of a region in the proximity of the edge surface of the substrate while the substrate is being rotated.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: August 17, 1999
    Assignee: Tokyo Electron Limited
    Inventor: Akihiro Fujimoto
  • General type press forming knife-mould made of plain, soft and thin material
    Patent number: 5939135
    Abstract: A method of manufacturing a general type press forming knife-mould made of plain, soft and thin material, being comprised of selecting a medium, low carbon steel plate as a base whereon a knife edge having a desired contour is formed by shaping milling, then the knife edge or the knife edge together with the milled base being placed into a plating tank for hard chromium plating to increase hardness of the knife edge to Rockwell hardness 70 degrees; thereby, cost for material selection and cost of production of the knife-mould can be lowered, the life of use of the knife-mould can be prolonged, and the knife-mould can get a rust-proof effect by the method and is suitable for press forming of plain papers, card boards or plastic plates etc. on a knife-mould mounting machine.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: August 17, 1999
    Inventor: Ming-Te Wu
  • Method for metallizing a phosphor layer
    Patent number: 5938872
    Abstract: Two embodiments of a method for metallizing a phosphor layer are presented. The key to the method is covering the phosphor with a temporary planarizing layer onto which the metallizing layer (typically aluminum) is then deposited. Once the metal layer is in place, the planarizing layer is removed (by a burning process), the metal then making good contact with the phosphor and the substrate. In the first embodiment, the dry film is located below the phosphor layer while in the second embodiment it is located above it.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: August 17, 1999
    Assignee: Industrial Technology Research Institute
    Inventors: De-An Chang, Chao-Chi Peng
  • Silicon dioxide containing coating
    Patent number: 5935638
    Abstract: A silicon dioxide containing coating can be used for multi-layer hermetic coatings, interlayer dielectric coatings, and flat panel display coatings. The coating is formed by applying a coating composition comprising polysilastyrene to a substrate and heating the polysilastyrene in an oxidizing atmosphere.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: August 10, 1999
    Assignee: Dow Corning Corporation
    Inventors: Grish Chandra, Loren Andrew Haluska
  • Phosphor having improved luminescense efficiency and a process for preparing the same
    Patent number: 5932140
    Abstract: A phosphor for a low voltage display device having a host and a metal salt or metal oxide dispersed on the surface of the host with improved luminescence efficiency which can be prepared at a low temperature.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: August 3, 1999
    Assignee: Samsung Display Devices Co., Ltd.
    Inventor: Il Yu
  • Method for fabricating SiO.sub.2 film
    Patent number: 5932283
    Abstract: Disclosed is a method for fabricating SiO.sub.2 film used as the core layer or cladding layer of an optical waveguide that has the steps of: coating a polysilazane solution on a substrate; and sintering the substrate at a predetermined temperature to form SiO.sub.2 film on the substrate by using the pyrolysis reaction from polysilazane to SiO.sub.2.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: August 3, 1999
    Assignee: NEC Corporation
    Inventor: Yoshinobu Kaneyama
  • Protective coating for reflective sunglasses
    Patent number: 5928718
    Abstract: An improved lens structure for reflective sunglasses incorporating a conventional resin/polymer type coating for protection of the mirror finish against abrasion and smudging and providing a means for causing the resin/polymer coating to adhere reliably to the mirror surface.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: July 27, 1999
    Inventor: Stephen M. Dillon
  • Method and apparatus for gas phase coating complex internal surfaces of hollow articles
    Patent number: 5928725
    Abstract: A method and apparatus is provided to coat the internal surfaces of a hollow article having gas flow passages by supplying a coating gas to the passages with the coating gas flow rate to at least two of the passages controlled to a different rate to deposit a coating of desired thickness on the internal surfaces of each passage.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: July 27, 1999
    Assignee: Chromalloy Gas Turbine Corporation
    Inventors: Peter Howard, Michael Williams, Suebali Rahemanji, Scott Lucas, Chong Yi
  • Positive identification and protection of documents using inkless fingerprint methodology
    Patent number: 5928708
    Abstract: A method and process to be utilized on any printed document, which, for example, include but are not limited to airline tickets, labels, checks, bonds, passports, green cards, prescription slips, and any other document with identification of the user or owner is critical, by providing a system for coating a portion of the document with a chemical compound, for determining an image thereupon, the system which would include the steps of first providing a document; next, applying a clear chemical coating onto at least a portion of the document; applying an non-visible image onto the chemical coated portion of the document; providing an activator solution; applying the activated solution to the chemically coated portion of the document to reveal the image thereupon; identifying the stamped image for assuring that the stamped image is not a counterfeit or the like.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: July 27, 1999
    Inventors: Kenny Hansmire, Peter Pyhrr
  • Method for fabricating a gradient refractive index optical filter
    Patent number: 5928713
    Abstract: A method for fabricating a gradient index optical filter comprising a thin film having a low refractive index contrast and a specific reflectance function structured using the phase of the refractive index profile as a variable to permit closed form, constrained optimization of rugate filters.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: July 27, 1999
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Peter D. Haaland, Jeffrey J. Druessel
  • Method and apparatus for manufacturing an optical ribbon conductor
    Patent number: 5928712
    Abstract: A method and an apparatus for forming a waveguide conductor ribbon by passing several light waveguides through a through-opening so that as the waveguides are passed through the opening, they are coated by a liquid coating material, which creates a drag force current for moving the waveguides through the opening. The diameter of the light waveguides and/or the position of the light waveguides inside the ribbon conductor is determined and the width of the through-opening of the coating apparatus is modified on the basis of the measured diameter value and/or on the basis of the size of any gap between the fibers to optimize the amount of drag current forces being produced.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: July 27, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Siegfried Unterberger, Karl Eidling, Gerd Kohler
  • Process for forming a refractory repair mass
    Patent number: 5928717
    Abstract: A powder mixture for use in ceramic welding repair of a refractory material containing alumina includes refractory particles including alumina; at least 5% by weight of a metallic combustible which is at least 30% aluminum; and from 3 to 10% by weight of an additive which is at least one material selected from the group consisting of aluminum fluoride, barium sulfate, cerium oxide, and calcium fluoride. A process for repairing a refractory material which contains alumina includes providing the above powder mixture; and projecting the powder mixture against a surface of the refractory material in the presence of gaseous oxygen so that the combustible particles and the gaseous oxygen react and release the heat of reaction against the surface and form a coherent refractory mass.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: July 27, 1999
    Assignee: Fosbel International Limited
    Inventors: Stephen Cherico, John Bacon
  • Vibration-enhanced spin-on film techniques for semiconductor device processing
    Patent number: 5925410
    Abstract: A method for forming a layer of material, particularly a dielectric material, on a substrate includes the steps of dispensing the material onto the substrate, spinning the substrate to produce a layer of the dispensed material, and vibrating the substrate to eliminate voids and/or gaps in the dispensed material. The dispensed material is hardened and if not sufficiently planar, may be subjected to a planarization step.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Micron Technology, Inc.
    Inventors: Salman Akram, Paul D. Shirley, William T. Rericha
  • Method for producing luminiscent screen
    Patent number: 5922394
    Abstract: The present invention is directed to producing a luminescent screen used in a cathode ray tube (CRT) suitable for monochromatic or chromatic images, such as, those utilized in televisions, computers or data monitoring equipment, which require CRTs. The method of the present invention produces an ablative layer of the luminescent screen having a smooth surface with reduced surface distortions, such as, streaks and waviness, which are typically produced by conventional coating processes. When a reflective aluminum film is deposited on such a smooth ablative layer, the reflective aluminum film is also provided with a smooth surface, since it typically conforms to the underlying smooth surface of the ablative layer. As a result, CRT images having reduced distortions are produced.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: July 13, 1999
    Assignee: Rohm and Haas Company
    Inventors: Andrew Paul Trapani, Gary Robert Larson, Steven Charles Brown, David William Whitman
  • Method and an apparatus for the application of a liquid or pasty medium onto a moving material web
    Patent number: 5922407
    Abstract: A method of application of a liquid or pasty medium onto a moving material web consisting, in particular, of paper or cardboard, in which a direct application (2) of a liquid or pasty medium (4) onto one side of a moving material web (1) and a contactless deflection (3) of the moving material web along a curved path of motion ensues, the side of the moving material web to be provided with the liquid or pasty medium passing through a concave curvature and the direct application (2) of the liquid or pasty medium ensuing directly ahead of the deflection (3) or during the deflection as a free jet along a contactlessly guided section of the moving material web. Additionally, an apparatus for implementing the method is described.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: July 13, 1999
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Harald Hess, Joachim Henssler, Michael Trefz, Bernhard Kohl, Zygmunt Madrzak, Rudolf Munch
  • Electron transporting and light emitting layers based on organic free radicals
    Patent number: 5922396
    Abstract: Electron transporting layers comprised of organic free radicals are disclosed for use as the electron transporting layer in multi-layer structures that are useful for fabricating organic light emitting devices (OLEDs). For example, the multi-layer structure may include an electron transporting layer containing an organic free radical comprised of a multi-aryl-substituted cyclopentadienyl free radical of formula (I): ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3, Ar.sub.4 and Ar.sub.5 each are, independently of the other hydrogen, an alkyl group or an unsubstituted or substituted aromatic group. More specifically, included among these materials are those which are comprised of an electron transporting material based on, the pentaphenylcyclopentadienyl Cp.sup..phi..
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: July 13, 1999
    Assignee: The University of Southern California
    Inventor: Mark E. Thompson
  • Method for forming phosphor screen
    Patent number: 5922395
    Abstract: A dispersion solution of colloidal silica is coated on a pigment layer composing a filter layer and then dried. Thus, the state of the front surface of the filter layer (pigment layer) is controlled without affecting the filter layer (pigment layer). A phosphor layer is formed on the filter layer (pigment layer).
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: July 13, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Norio Koike, Yoshinori Takahashi
  • Correction fluid
    Patent number: 5922400
    Abstract: An aqueous correction fluid is provided including an opacifying agent, including a first opacifying pigment selected to provide hiding power and a second opacifying pigment selected to provide suspension redispersability, a cationic film-forming polymer, a nonionic film-forming polymer, and a dispersing agent.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: July 13, 1999
    Assignee: The Gillette Company
    Inventors: Chiou C. Yau, Kim H. Ng, Norman G. Sanborn
  • Potable water supply components
    Patent number: 5919519
    Abstract: A method of treating a potable water supply component, for example a pipe, pipe coupling or tap body, made of a leaded copper-based alloy such as a brass or gun metal, in order to inhibit the leach out of lead from the alloy by potable water during service, comprises treating at least internal surfaces of the component with an aqueous solution of an acid that forms a substantially water insoluble compound with lead. The acid is preferably ortho-phosphoric acid.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: July 6, 1999
    Assignee: IMI Yorkshire Fittings Limited
    Inventor: Colin E Tallis
  • Apparatus for and method of processing substrate
    Patent number: 5919529
    Abstract: A plurality of transporter robots are provided on respective rails. Each semiconductor substrate is transported by a first robot from an indexer to processing units and then to a cooling plate. The second robot comes to the cooling plate and transports the substrate to other processing units. The cooling plate is used as an interface for the exchange of the substrate between the robots. No liquids nor gasses are applied to the substrate in the cooling plate and the substrate is passed to the next robot without contamination. No dedicated buffers are required, and thereby the size of the apparatus is reduced.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: July 6, 1999
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventor: Yoshio Matsumura