Patents Examined by Janyce Bell
  • Patent number: 6090446
    Abstract: The present invention provides a method of forming on a substrate a particle layer highly adherent to the substrate, which comprises the steps of spreading a dispersion (I) comprising a dispersing medium and, dispersed therein, solid particles being surface treated with a compound acting as a binder on a liquid (II) having a specific gravity higher than that of the dispersing medium, said liquid (II) being immiscible with the dispersing medium, subsequently removing the dispersing medium from the dispersion (I) to thereby arrange the solid particles on the liquid (II) so that a particle layer is formed on the liquid (II) and thereafter transferring the particle layer onto a substrate.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: July 18, 2000
    Assignee: Catalysts & Chemicals Industries Co., Ltd.
    Inventors: Akira Nakashima, Michio Komatsu, Kenji Ohno, Kuniharu Teramoto, Kazuaki Inoue
  • Patent number: 6086943
    Abstract: An electron-emitting device having an electroconductive film including an electron-emitting region arranged between a pair of device electrodes is manufactured. The electroconductive film is formed by applying a liquid containing the material of the film to a substrate by using an ink-jet method, then drying and heating the applied liquid. Defective conditions, if any, in the applied liquid or the precursor film formed by drying the liquid or the electroconductive film formed by heating the precursor film are detected and remedied by applying the same liquid again to the area detected for a defective condition. The detection and remedy of any defective condition may be conducted after the liquid-applying, drying or baking step.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: July 11, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mitsutoshi Hasegawa
  • Patent number: 6083560
    Abstract: A method and apparatus for forced flow/thermal gradient chemical vapor infiltration (CVI) of fibrous porous structure to create a simultaneous deposition of a carbon matrix throughout the substrate.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: July 4, 2000
    Inventors: Dean F. Fisher, Timothy W. Lawrence
  • Patent number: 6074789
    Abstract: A method for improving the adherence of a phosphor screen to the face panel of a color cathode ray tube involves placing a UV reflective filter on the inside of the face panel prior to photolithographic forming of the screen, in order to reflect transmitted UV light back onto those areas form which the light emerged, thereby effectively increasing the exposure dosage of those areas.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: June 13, 2000
    Assignee: Philips Electronics N.A. Corp.
    Inventor: Robert L. Donofrio
  • Patent number: 6074699
    Abstract: An article has at its surface a nonmetallic ceramic form of a cation reactive with phosphate ion to form a ceramic phosphate, such as an oxide of a cation selected from the group consisting of beryllium, aluminum, iron, magnesium, calcium, thorium, barium, zirconium, zinc, silicon, and mixtures thereof. A source of reactive phosphate ions, such as concentrated phosphoric acid or monoaluminum phosphate, is applied to the surface of the article. The surface of the article is thereafter heated to cause the nonmetallic ceramic form of the cation and the source of the reactive phosphate ions to react together, producing a phosphate-bonded hard layer at the surface of the article.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: June 13, 2000
    Assignee: McDonnell Douglas Corporation
    Inventors: Robert A. Dichiara, Jr., Robert W Kreutzer
  • Patent number: 6068881
    Abstract: A spin-apply tool avoids contamination of a substrate back surface by providing exhaust along or beyond a periphery of a splash shield. The peripheral exhaust pulls a mist of droplets of liquid spun off the substrate away from the substrate. The spin-apply tool includes a spin chuck for holding the substrate, a basin extending around the chuck, a splash shield in the basin, and an exhaust substantially symmetric with the center of the substrate. The chuck surface defines a plane, and the splash shield extends as a ring around the chuck at an angle to that plane sufficient to deflect liquid flying off the chuck down to the basin. The basin may have a removable liner that can be cleaned and reused. Use of solvent to clean the backside of substrates is avoided. And a basin drain is eliminated, eliminating the need for any solvent consumption.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: May 30, 2000
    Assignee: International Business Machines Corporation
    Inventors: Robert T. Valley, Gary P. Viens, James R. Weightman
  • Patent number: 6066357
    Abstract: Methods of making a full-color organic light-emitting display are disclosed. The methods include ink-jet printing of fluorescent dopants selected to produce red, green, or blue light emission from designated subpixels of the display. The dopants are printed sequentially from ink-jet printing compositions which permit printing of dopant layers over a light-emitting layer containing a host material selected to provide host light emission in a blue spectral region. The dopants are diffused from the dopant layer into the light-emitting layer by exposing the light-emitting layer and the dopant layers to vapor of a fluid or fluid mixture. When an ink-jet printing composition is formulated with a printing fluid having fluid vapors which promote dopant diffusion, the steps of ink-jet printing and diffusing of dopants can be combined to form a selectively doped light-emitting layer.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: May 23, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ching W. Tang, Kee-Chuan Pan
  • Patent number: 6063439
    Abstract: A processing apparatus using solution comprises a rotary table which rotates while holding a substrate thereon, in the processing chamber provided in the casing, a supply mechanism for supplying a processing solution to a surface of the substrate held on the rotary table, and an impurity remover unit, provided outside the casing, wherein the impurity remover unit includes a cleaning unit for cleaning an object gas introduced from the inlet opening by brining it into contact with an impurity remover solution, and the gas-liquid separation mechanism for separating liquid from gas in an exhaust is provided in the exhaust system for exhausting the casing.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: May 16, 2000
    Assignee: Tokyo Electron Limited
    Inventors: Norio Semba, Junichi Kitano, Takayuki Katano
  • Patent number: 6060117
    Abstract: Method of making a mask assembly by providing a heat resistance mask substrate having an exposed surface with a surface smoothness less than 2000 micro inches, uniformly spraying a thermoset epoxy organic coating onto such exposed surface in one or more layers to provide a coating having (e.g., a thickness equal to or less than about 0.005 inches), a smoothness characterized by an average profilometer reading (Ra) of no greater than 1.5 micrometers, said coating being devoid of pores that exceed about 0003 inch in size, and flame polishing all or a portion of such coating to effect a surface finish of about 1.0 micrometers. A mask assembly which is useful in masking areas from thermal spray particles, comprising a heat resistance substrate presenting an exposed grit blasted surface having a smoothness of less than 2000, and a thin thermoset epoxy coating bonded to said exposed surface and having a surface smoothness characterized by an average profilometer reading (Ra) no greater than 1.5.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: May 9, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Paul Earl Pergande, Jeffrey Alan Kinane, Deborah Rose Pank, David Robert Collins
  • Patent number: 6060112
    Abstract: A color cathode ray tube is disclosed in which a coating containing an aluminum-phosphorus compound and fine particles of at least one of tungsten oxide and bismuth oxide is formed on the surface of a shadow mask on the side of an electron gun.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: May 9, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Sachiko Muramatsu, Yasuhisa Ohtake
  • Patent number: 6060121
    Abstract: A method of transferring a chemical activating agent from an applicator to a substrate surface involves providing an applicator having a raised application surface, applying a chemical activating agent to the application surface, contacting the substrate surface with the application surface, and removing the applicator. The chemical activating agent is transferred in a form in which it is capable of effecting a chemical reaction, such as catalysis, at the surface. Thus, following transfer of the chemical activating agent to the surface in a pattern, a metal can be plated at the substrate surface in the pattern. The applicator can be an elastomeric stamp having a raised portion defining a stamping surface.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: May 9, 2000
    Assignee: President and Fellows of Harvard College
    Inventors: Pirmin Hidber, Wolfgang Helbig, Enoch Kim, George M. Whitesides
  • Patent number: 6056994
    Abstract: A precursor liquid comprising several metal 2-ethylhexanoates, such as strontium, tantalum, and bismuth 2-ethylhexanoates, in a xylenes/methyl ethyl ketone solvent is prepared, and deposited on a substrate. In one embodiement the substrate is placed within a vacuum deposition chamber, the precursor liquid is misted, and the mist is flowed into the deposition chamber while maintaining the chamber at ambient temperature to deposit the precursor liquid on the substrate. In another embodiment, the precursor is spin-coated on the substrate. The liquid is dried, baked, and annealed to form a thin film of a layered superlattice material, such as strontium bismuth tantalate, on the substrate.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 2, 2000
    Assignee: Symetrix Corporation
    Inventors: Carlos A. Paz de Araujo, Larry D. McMillan, Michael C. Scott, Joseph D. Cuchiaro
  • Patent number: 6054170
    Abstract: A combined business form/identification card includes a sheet of cellulosic stock material having a barrier coating on a first portion of the sheet with an overlay of laser-printable varnish on the barrier coat. Lines of weakness are provided in the sheet in the area of the barrier coat and varnish to produce an identification card detachable from the sheet. A second portion of the sheet has indicia imaged thereon.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: April 25, 2000
    Assignee: Moore U.S.A., Inc.
    Inventors: Stanley C. Chess, Myron C. Heeb, Scott A. Moeller, Michael C. Maier, Thomas P. Nash
  • Patent number: 6054180
    Abstract: A method for impregnating a resin-absorbable tubular liner with a hardenable liquid resin: (a) a hose is connected to a vacuum pump; (b) the hose is inserted into the liner in a manner such that the open end of the hose comes close to, but sufficiently distant from, one end of the liner; (c) the other end of the tubular liner is closed over the hose in a manner such that the hose can freely slide through the closed end of the tubular liner; (d) a predetermined amount of the hardenable liquid resin is injected into the tubular liner through the open end of the tubular liner; (d') the open end of the tubular liner is substantially closed by placing it between a pair of rollers; and (e) the vacuum pump is operated to evacuate the hose while at the same time the hose and/or the resin-absorbable tubular liner are moved in a manner such that the length of the hose inside the liner is reduced.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: April 25, 2000
    Assignees: Shonan Gosei-jushi Seisakusho K.K., Yokoshima & Company, GET Inc., OAR Company
    Inventors: Takao Kamiyama, Yasuhiro Yokoshima, Shigeru Endoh, Hiroyuki Aoki
  • Patent number: 6048570
    Abstract: An carrying container and method for holding and transporting evidence, the case having a base portion and a cover portion and both vertically and horizontally adjustable securing means. The base portion has multiple support bars upon which slidably affixed support racks or U-clamps are positioned. The adjustable support racks or clamps position the item to be carried and securely hold the item placed therein. A storage compartment may also be incorporated. The container has a port or vent through which fingerprint dust fixative can be injected to fix fingerprint dust that has been applied to the item so that latent fingerprints can be identified. The container protects the item from damage and minimizes physical contact with the item and thus protects and preserves any latent fingerprints that may exist on the item.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: April 11, 2000
    Inventor: Harvey D. Poole
  • Patent number: 6042883
    Abstract: The present invention provides a method for making a high temperature coating comprising applying to a surface a precursor polymer which decomposes to a substantially pure product selected from the group consisting of a refractory metal carbide and a refractory metal boride, and exposing the precursor polymer to conditions effective to decompose the precursor polymer to said substantially pure product.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: March 28, 2000
    Assignee: Southwest Research Institute
    Inventors: Partha P. Paul, Stuart T. Schwab
  • Patent number: 6042885
    Abstract: Application of a release agent onto the interior surfaces of a commercial bakery trough is accomplished by a system for dispensing a gel having two spray head assemblies. While the trough is stationary, each head in turn descends into the trough and propels the release agent onto a portion of the interior surfaces including side walls, an end wall, and the bottom wall of the trough. Each head includes a disc that spins to distribute the release agent. An edge on the disc defines a predetermined spray pattern. Waste of release agent due to overspray is minimized by controlling a release agent valve in the head, controlling disc rotation, and monitoring position of the head in the trough.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: March 28, 2000
    Assignee: ABITEC Corporation
    Inventors: Douglas J. Woollard, John H. Sharrock
  • Patent number: 6033718
    Abstract: An apparatus and procedure for applying a protective coating to a lens disc; the procedure comprises the positioning of trays (7) carrying lens discs, on a conveyor belt (9), which comes to a halt opposite a sensor means which detects the lenses; the tray (7) enters a coating chamber (4) provided with a coating diffusor (11); and the tray (7) comes to a halt repeatedly leaving one of the lens carried on the tray (7) opposite the diffusor (11); the pulverised coating material is sprayed onto the lens and then the tray (7) passes on to a drying section (3). The apparatus comprises trays (7) carrying lenses; a means for the transport thereof; a chamber (4), provided with a coating diffusor (11) and a gas extraction means (13); there is also a sensor means (15) and a stopping means for regulating the movement of the tray (7) as far as the drying section (3).
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: March 7, 2000
    Assignee: Indo Internacional, S.A.
    Inventors: Lluis Miquel Marias Albrich, Benigno Moreno Vidales, Joan Perez Agudo, Alfred Santiago Palmero
  • Patent number: 6030655
    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: June 3, 1999
    Date of Patent: February 29, 2000
    Inventors: James Kenny Hansmire, Peter A. Pyhrr
  • Patent number: 6030657
    Abstract: The present invention is directed to a method for labeling an object for its identification in order to counter product diversion and product counterfeiting. This method includes providing an encapsulated biologic marker labeled with an agent that emits selected detectable wavelengths of energy when exposed to infrared radiation (IR), and associating the labeled marker with the object, whereby, the object to be identified can be exposed to IR and emitted select wavelengths of energy from said agent detected. The agent can be an upconverting phosphor, a lanthenide ion (bound to a naphthalene group), or other chemical that emits selected detectable wavelengths of energy when exposed to infrared radiation (IR). Biologic markers include, inter alia, one or more of a protein, a nucleic acid sequence, an antibody, a polypeptide, or an antigen. The encapsulant for the biologic marker preferably is casein which has been cross-linked with itself.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: February 29, 2000
    Assignee: DNA Technologies, Inc.
    Inventors: Charles L. Butland, Breffni Baggot