Patents Examined by Shrive Beck
  • Patent number: 6554938
    Abstract: One or more optical fiber elements each constituted by a coated glass fiber are fed to an over-coating device and an over-coating is applied to the optical fiber elements in a lump, the feeding speed of the optical fiber elements to the over-coating device is made larger than the take-up speed of the over-coated optical fiber onto a take-up reel so as to give longitudinal compression strain to the glass fibers of the over-coated optical fiber. The glass fiber has compression strain of not less than 0.03% to less than 0.10% in a longitudinal direction thereof at room temperature.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: April 29, 2003
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masayoshi Yamano, Yoshiyuki Suetsugu
  • Patent number: 6521294
    Abstract: A metallic substrate has a substrate surface having a substrate surface of nickel, a substrate aluminum content, and other alloying elements. A maskant is applied overlying the substrate surface to produce a masked substrate surface having an exposed region and a protected region. The maskant includes a plurality of maskant particles, each particle having a maskant particle composition comprising a maskant metal selected from the group of nickel, cobalt, titanium, chromium, iron, and combinations thereof, and a maskant aluminum content. The substrate is aluminided by contacting a source of aluminum to the masked substrate surface, whereby aluminum deposits on the exposed region and does not deposit on the protected region.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: February 18, 2003
    Assignee: General Electric Co.
    Inventors: Joseph D. Rigney, Jeffrey A. Pfaendtner, Michael J. Weimer, Ramgopal Darolia
  • Patent number: 6440487
    Abstract: A radioactive transition metal stent, comprising one or more transition metals, wherein the transition metal stent surface is chemically bound to a radioactive material; and a method for producing the radioactive transition metal stent wherein the radioisotope is chemically bound to, and is uniformly confined to the transition metal stent surface without affecting the metallurgical properties of the transition metal stent is disclosed.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: August 27, 2002
    Assignee: MoBeta, Inc.
    Inventors: Michelangelo Delfino, Mary Elizabeth Day
  • Patent number: 6379742
    Abstract: A method for forming a document includes the steps of (1) selecting a marking medium that has a pre-determined machine-readable characteristic, and (2) selecting a document substrate that is compatible with the pre-determined machine-readable characteristic of the selected marking medium. An information symbol is secured to the selected document substrate. A security layer which includes the selected marking medium is also affixed to the document substrate so that the security layer is in at least partial register with the information symbol. The method can further include the step of affixing a blocking layer to the document substrate in at least partial register with the information symbol. The blocking layer can be affixed to the document substrate so that blocking layer is intermediate the information symbol and the security layer or so that the security layer is intermediate the information symbol and the blocking layer.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: April 30, 2002
    Assignee: Scientific Games Inc.
    Inventors: William F. Behm, Kenneth E. Irwin, Jr., Mark Tevis
  • Patent number: 6358560
    Abstract: In a method of manufacturing a display device, a substrate is provided with a pattern of barrier ribs of frit material by moving a squeegee across a substrate. The barrier ribs extend in a longitudinal direction and have a predefined profile in cross-section which is perpendicular to the longitudinal direction. A contact portion of the squeegee has grooves which correspond in cross-section to the predefined cross-sectional profile of the barrier ribs.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: March 19, 2002
    Assignee: U.S. Philips Corporation
    Inventors: Erwin R. Meinders, Petrus C. P. Bouten, Joseph C. M. Bosman, Joseph R. R. Pankert, Maarten Buijs
  • Patent number: 6344246
    Abstract: Robotic cladding of an underlying substrate with a composite metallic surface layer on a prepatterned interface with the substrate, is performed by a laser induced surface improvement process whereby a particulate ceramic additive introduced into a matrix mixture forms the surface layer with a permanent non-skid property bonded by intermixing of molten portions of such matrix mixture and the substrate at the interface, enhanced by prepatterning of such interface.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: February 5, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Eugene C. Fischer, Vincent J. Castelli, Dale A. Sowell
  • Patent number: 6340500
    Abstract: A method for improving the thermal fatigue life of a thermal barrier coating (TBC) deposited on an aluminide bond coat through a process by which the surface morphology of the aluminide bond coat is modified to eliminate or at least reduce oxidation and oxidation-induced convolutions at the alumina-bond coat interface, as explained more fully below. The bond coat is deposited to have generally columnar grains and grain boundary ridges at its surface, and is then peened at an intensity sufficient to flatten at least some of the grain boundary ridges, but insufficient to cause recrystallization of the bond coat when later heated, such as during deposition of the thermal barrier coating. In so doing, the original surface texture of the bond coat is altered to be smoother where the grain boundaries meet the bond coat surface, thereby yielding a smoother bond coat surface where the critical alumina-bond coat interface will exist following oxidation of the bond coat.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: January 22, 2002
    Assignee: General Electric Company
    Inventor: Irene Theodor Spitsberg
  • Patent number: 6338871
    Abstract: A method of coloring silica sand for use in coating a surface. The method includes the steps of selecting silica sand of a desired grain size and color, the preferred color being substantially white and grain size being any combination of thirty, fifty and eighty mesh. A coating having adhesive qualities is then prepared by one of air drying acrylic and vinyl emulsions or thermosetting phenolic, polyester and epoxy emulsions. To coat the silica sand, the silica sand to tumble or fall from an elevated position and is sprayed as it tumbles or falls with the prepared coating. The coated silica sand is then pulverized to break up clumped particles formed during application of the coating. A desired color mixture is obtained by mixing coated silica sand of different colors. The coated silica sand is then applied to a desired surface by one of spraying or using a trowel. Titanium dioxide may now be applied to the mixture after application to alter a gloss of the mixture.
    Type: Grant
    Filed: April 30, 2000
    Date of Patent: January 15, 2002
    Inventor: Bong Hang Shin
  • Patent number: 6338872
    Abstract: A film forming method is described using an apparatus with a plurality of vacuum chambers which communicate with each other via a connection, where the apparatus has one or more detachable treatment rooms and where the method includes continuously forming a plurality of films on a band-shaped substrate within the treatment rooms, while continuously moving the substrate through the treatment rooms. The treatment rooms within said desired vacuum chambers are replaced after forming the film for a predetermined period as a part of the film forming method.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: January 15, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takehito Yoshino, Hiroshi Echizen, Masahiro Kanai, Hirokazu Otoshi, Atsushi Yasuno, Kohei Yoshida, Koichiro Moriyama, Masatoshi Tanaka
  • Patent number: 6337105
    Abstract: There is provided a method of forming a thin functional film by vacuum vapor deposition in which a functional material is heated from the above thereof so that bumping or splashing of the functional material is not caused upon evaporation of the functional material. Specifically, the functional material is placed in a receiving vessel and the functional material is heated by a heater which is located above the functional material so that bumping or splashing is suppressed, whereby a uniform functional film is produced without a pinhole.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: January 8, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiaki Kunieda, Toshibumi Kamiyama, Sadayuki Okazaki
  • Patent number: 6333068
    Abstract: This invention relates to a drying time accelerator for a water-based paint comprising mineral particles, a polymer binder with water-based dispersion and an emulsion polymerization agent, as well as the corresponding paint. The accelerator has a polymeric structure, is water-soluble, comprises cationic charges, and is selected from metallic polychlorides, metallic polyoxychlorides, or synthesis polyacrylamide polymer. The invention also relates to a method for applying a water-based paint according to the invention onto a support, according to which the paint is sprayed onto the support, light-reflecting balls are distributed in the paint, and a drying time accelerator is incorporated into the paint, preferably after distribution of the balls. The application of the invention is to road markings.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: December 25, 2001
    Assignee: Colas
    Inventors: Graziella Durand, Jean-Eric Poirier, Pierre Calvin
  • Patent number: 6322671
    Abstract: A process is described for forming integral coatings on metal and/or non-metallic substrate surfaces by the method of physical and chemical deposition in a vacuum of metal and/or non-metallic materials. The process, improved so as to obtain a coating with quasi-plasticity behavior, includes an action for depositing material onto substrate surfaces in the shape of multiple separated-in-space deposition zones of predetermined form and dimensions, and, also, an action for continuous migration of these deposition zones over the substrate surface during the whole of the coating formation process, while preserving a uniform coating thickness. In a particular embodiment, a protective high-temperature resistant NiCrAlY system coating is formed on a protected component by physical vapor deposition, which deposition is done through a screen having a series of narrow and long slots.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: November 27, 2001
    Assignee: Ionica, LLC
    Inventor: Askar Dzhamilevich Mingazhev
  • Patent number: 6319854
    Abstract: An organic acid containing solution obtained by adding an organic acid having an alkyl group to a solution including silanol condensate particles is applied on a substrate so as to form a coating film. The coating film is heat treated so as to form a porous film.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: November 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Nobuo Aoi
  • Patent number: 6312482
    Abstract: A combined, integral steam generator coal gasifier includes a vertically elongated, all welded, gas tight enclosure with a burner zone having a double pitch sloping furnace floor and a slag tap extending therethrough. Successive zones located above the burner zone are provided with appropriate tube materials for conveying synthesis gas produced by the coal gasification process. A multi-pass convection pass zone having upflow and downflow passes is located at an upper portion of the enclosure and contains a plurality of superheater (primary and secondary) as well as economizer heating surfaces which extract heat from the synthesis gas to produce steam. An ash remover is connected to the outlet of the convection pass zone to remove ash from the synthesis gas exiting from the convection pass zone. The slag tap located at the bottom of the burner zone communicates with a slag tank or a drag chain deasher for receiving and removing slag from the burner zone.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: November 6, 2001
    Assignee: The Babcock & Wilcox Company
    Inventors: David E. James, Paul S. Larsen, Mark C. Godden, Ted V. Mull, Jr., Paul S. Weitzel
  • Patent number: 6309713
    Abstract: A layer of tungsten nitride is deposited on the upper surface of a wafer. The deposition is performed by providing a gaseous mixture and providing energy to the gaseous mixture to form a plasma. The gaseous mixture includes a first gaseous composition containing tungsten and a second gaseous composition containing nitrogen and hydrogen. The second gaseous composition is one that does not have a gas phase reaction with the first gaseous composition to form tungsten nitride, unless energy is provided to the gaseous mixture. The first gaseous composition may be tungsten hexafluoride (WF6). The gaseous mixture may be infused with energy to form a plasma by providing it with energy from an rf signal. In the plasma, the nitrogen dissociates into nitrogen ions, and the tungsten separates from the fluorine. The nitrogen ions and tungsten then combine to form tungsten nitride (W2N), which deposits on the wafer's upper surface.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: October 30, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Alfred Mak, Ling Chen, David C. Smith, Mei Chang, Steve Ghanayem
  • Patent number: 6309690
    Abstract: A system and method using microcoded marks provides retrospective identification of articles. An article is marked with microparticles having multiple layers. The particles form a unique spatial pattern on the article. An image is made of the mark as applied to the article. The digitized image is stored in a database with information about the article. The database can be accessed by users to verify the authenticity of an article.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: October 30, 2001
    Assignee: Microtrace, Inc.
    Inventors: Brian Brogger, William J. Kerns
  • Patent number: 6309705
    Abstract: A high reflectance-low stress Mo—Si multilayer reflective coating particularly useful for the extreme ultraviolet (EUV) wavelength region. While the multilayer reflective coating has particular application for EUV lithography, it has numerous other applications where high reflectance and low stress multilayer coatings are utilized. Multilayer coatings having high near-normal incidence reflectance (R≧65%) and low residual stress (≦100 MPa) have been produced using thermal and non-thermal approaches. The thermal approach involves heating the multilayer coating to a given temperature for a given time after deposition in order to induce structural changes in the multilayer coating that will have an overall “relaxation” effect without reducing the reflectance significantly.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: October 30, 2001
    Assignee: The Regents of the University of California
    Inventors: Claude Montcalm, Paul B. Mirkarimi
  • Patent number: 6303234
    Abstract: Cellulosic materials, including dimension lumber, plywood, particle board, wafer board, paper, fabric and similar materials, were treated with sodium silicate (Na2O.SiO2) in concentrations ranging from 400-0.04 g Na2O.SiO2/kg water and the surfaces of selected samples were further treated with silicon oxide (SiO or SiO2) applied in a molecular to micron layer thickness by vapor deposition. Tests were conducted to determine the effectiveness of these materials in terms of fire resistance, durability, duration of effectiveness and moisture resistance. For sodium silicate as a sole treatment, flame retardance was found to increase as the concentration of sodium silicate in solution increased. To overcome the disadvantages of sodium silicate, sodium silicate treated samples were further treated by the deposition of a molecular coating of silicon oxide by vapor deposition. Samples treated by this technique were found to be completely moisture resistance.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: October 16, 2001
    Inventors: K. M. Slimak, Robert A. Slimak
  • Patent number: 6296899
    Abstract: The present invention is to provide a repair coating process, the repair coating process consists of grinding the part of an intermediate coating surface to be repaired and then performing a repair coating of the ground part with a thermocurable organic solvent type repair paint (F) containing a neutralized product of a hydroxyl group-containing resin having an acid value of 5-100 mgKOH/g and a crosslinking agent in forming multilayer coating films by coating an electro-deposition paint (A) and an intermediate paint (B) and curing them by heating, then, after performing a repair coating on the intermediate coating surface, successively coating wet-on-wet a white type water base coat (C) a pearly base coat (D) and a clear coat (E), and then curing by crosslinking the films of the above-mentioned coats (C), (D) and (E) simultaneously through heating.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: October 2, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Takanobu Iizuka
  • Patent number: 6296905
    Abstract: Embodiments provide methods for the protection and consolidation of calcareous materials. An exemplary method includes providing an aqueous solution of a hydroxycarboxylic acid, adjusting the pH of the aqueous solution by adding an alkaline agent, and applying the pH-adjusted aqueous solution to a calcareous mineral to form a conversion layer on the mineral. The calcareous mineral may, for example, be carbonate rock, particularly limestone and marble, or may be part of masonry material, aggregates, or fillers. Adherent conversion layers are readily formed at ambient temperatures and, therefore, methods provided are suitable for field application. Conversion layers so formed are provided as further embodiments.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: October 2, 2001
    Assignee: MMC Materials, Incorporated
    Inventors: Irving O. Slavid, Norman R. Weiss