Patents Issued in October 12, 2004
  • Patent number: 6802954
    Abstract: The present invention is directed to a method of creating porous anode foil for use in multiple anode stack configuration electrolytic capacitors, producing a pore structure that is microscopic in pore diameter and spacing, allowing for increased energy density with a minimal increase in ESR. Initially, an anode metal foil is etched, according to a conventional etch process, to produce an enlargement of surface area. The etched foil is then placed into the electrochemical drilling solution of the present invention. Alternatively, the etched foil may be masked, so that only small areas of the etched foil are exposed, prior to being placed in the electrochemical drilling solution. A DC power supply is used to electrochemically etch the masked or unmasked foil in the electrochemical drilling solution of the present invention such that pores on the order of a few microns diameter are produced through the foil.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: October 12, 2004
    Assignee: Pacesetter, Inc.
    Inventors: Ralph Jason Hemphill, Thomas V. Graham, Thomas F. Strange
  • Patent number: 6802955
    Abstract: An electrochemical apparatus is provided which deposits material onto or removes material from the surface of a workpiece. The apparatus comprises a polishing pad and a platen which is in turn comprised of a first conductive layer in contact with the polishing pad and coupled to a first potential, a second conductive layer coupled to a second potential, and a first insulating layer disposed between the first and second conductive layers. At least one electrical contact is positioned within the polishing pad and is electrically coupled to the second conductive layer. A reservoir is provided which places an electrolyte solution in contact with the polishing pad and the workpiece. A carrier positions and/or presses the workpiece against the polishing pad.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: October 12, 2004
    Assignee: Speedfam-Ipec Corporation
    Inventors: Ismail Emesh, Periya Gopalan, Phillip M. Rayer, II, Bentley J. Palmer
  • Patent number: 6802956
    Abstract: A variety of pollutants and other contaminants may be removed from a variety of aqueous media using electrolytic treatments. The treatment includes inserting an anode and a cathode into the medium undergoing treatment, and applying a high current and voltage to the electrodes. The treatment may also include the addition of catalytic enzymes to the medium undergoing treatment. The present methods are compatible with aquatic lifeforms, and offer an effective alternative to chemical-based water treatment systems.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: October 12, 2004
    Assignee: Aquatic Technologies
    Inventor: David N. Orlebeke
  • Patent number: 6802957
    Abstract: A micron-scale self-referencing microsensor is disclosed which uses an enzyme-based electrode to measure the flux of an electrochemically inactive analyte such as glucose. The electrode oscillates between at least two positions. In the presence of the analyte, the enzyme generates a species detectable by the electrode.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: October 12, 2004
    Assignee: Marine Biological Laboratory
    Inventors: Sung-Kw n Jung, Richard H. Sanger, Peter J. S. Smith, John R. Pepperell
  • Patent number: 6802958
    Abstract: The invention pertains to a process for preparing spherical oxide particles comprising the steps of shaping a starting material comprising an oxide hydrate into particles of substantially constant length by leading the material to a set of two rolls rotating towards each other followed by leading the material to a roll equipped with grooves to form rod-type shapes, cutting the rod-type shapes into particles of substantially constant length, converting the thus formed particles into spheres, and heating the particles to convert the oxide hydrate into an oxide. The process results in particles in which there is substantially no difference in density between the core portion and the shell portion of the particles, which results in a high abrasion resistance. The particles prepared by the claimed process are particularly suitable for the preparation of hydroprocessing catalysts, more in particular for the preparation of hydroprocessing catalysts suitable for the hydroprocessing of heavy hydrocarbon feeds.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: October 12, 2004
    Assignees: Nippon Ketjen Co., Ltd., Akzo Nobel NV
    Inventors: Nobuhito Matsumoto, Eiichi Yano, Masafumi Shimowake, Tetsuro Kamo
  • Patent number: 6802959
    Abstract: A process for separating olefins from sulfur-containing hydrocarbons contained in a hydrocarbon feedstock is disclosed and includes contacting the hydrocarbon feedstock with N-hydroxyethyl pyrollidone in a contacting zone, removing at least one olefin overhead from the contacting zone, and removing at least a portion of the sulfur-containing hydrocarbons off the bottom of the contacting zone along with the N-hydroxyethyl pyrollidone.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: October 12, 2004
    Assignee: ConocoPhillips Company
    Inventor: Ronald E. Brown
  • Patent number: 6802960
    Abstract: A process for the production of a process oil, the process comprising: a) contacting a petroleum distillate with a polar solvent in an extraction column which operates with a bottom temperature of 30 to 80° C., b) withdrawing a primary raffinate from the column of step a), c) contacting the primary raffinate with a polar solvent in an extraction column which operates at a bottom temperature that is higher than the bottom temperature of the extraction column of step a), and in the range of 60 to 90° C., d) withdrawing a secondary extract from the column of step c), and e) removing said polar solvent from said secondary extract.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: October 12, 2004
    Assignees: BP Oil International Limited, BP Refinery (Kwinana) Pty Limited
    Inventors: John Philip Davies, Kellie Peta Grace
  • Patent number: 6802961
    Abstract: The present invention is an apparatus and process for cleaning substrates using dense fluids under the influence of centrifugal force and dense fluid phase changes. A perforated centrifuge drum operates within a pressure vessel having drains and fill ports. System controls include a high optical sensor, a low optical sensor, a pressure transducer, and a thermocouple. An external dense fluid cleaning and management system exchanges dense fluid and gas with the pressure vessel via the drain and fill ports. Dense fluid centrifugal separations prevent pooling and supercooling of liquid carbon dioxide avoiding recontamination of the substrate. The present invention can perform solvent-aided separation processes including liquid-liquid, liquid-supercritical-fluid, froth flotation and centrifugal phase-shift separations.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: October 12, 2004
    Inventor: David P. Jackson
  • Patent number: 6802962
    Abstract: An easy access deck drain cover assembly with a strainer plate having a removable hinge at one end and a removable locking mechanism opposite the hinge where the locking mechanism includes a J-bolt coupled to the strainer plate and means for engaging the bottom of the J-bolt to secure the strainer plate in a closed position. The strainer plate cover remains connected to the deck drain even when opened so that the deck drain may be serviced.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: October 12, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert E. Browne, III, Jeffrey W. Gibbs
  • Patent number: 6802963
    Abstract: A pool cleaner debris bag includes a body having a debris collection cavity, an upper end and a lower end, the lower end coupled to the pool cleaner to receive debris from the pool ejected by the cleaner into the bag. The bag further includes a float positioned outside the debris collection region of the bag.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: October 12, 2004
    Assignee: Pentair Pool Products, Inc.
    Inventor: Sanford F. Campbell
  • Patent number: 6802964
    Abstract: A tipping pit water reclaiming system for concrete reclaimers which includes one or more tanks with a pivot support and hydraulic pistons for tipping the tanks to remove the settled solids. Clarified water from the tipping tanks overflows into a pump tank where it is returned by pump to the reclaimer. The pump tank includes a second pump for pumping excess clarified water into a storage tank for return to the tipping tank after the cement solids have been emptied out of the tipping tank. The second pump prevents the overflowing of water onto the ground from the tipping tank or pump tank as solids accumulate in the tipping tank. The second pump is controlled by float activated switches positioned at predetermined levels within the pump tank.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: October 12, 2004
    Inventors: Mark Preisser, Robert J. Fox
  • Patent number: 6802965
    Abstract: The present invention provides a process for the removal of hydrogen peroxide from spent pickle liquor used in a steel strip pickling process. The process utilizes an enclosed decomposition tank which includes a pickle liquor inlet pipe, an outlet pipe, at least one vent pipe, an internal baffle, and a heat source.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: October 12, 2004
    Assignee: AK Steel Corporation
    Inventors: Vijay N. Madi, Jerald W. Leeker
  • Patent number: 6802966
    Abstract: The present invention relates to a solid and method useful in separating chemical components in a complex mixture when at least one of the chemical components of the mixture is capable of being selectively adsorbed. The solid of the present invention comprises an inorganic substance and moieties (R10) located on at least one surface of the inorganic substance, wherein said inorganic substance is an inorganic oxide and the surface moiety is selected from the group consisting of —CH2OH, —CH(OH)2, —CH(OH)CH3, —CH2CH2OH, —C(OH)2CH3, —CH2CH(OH)2 and —CH(OH)CH2(OH). Binding moiety, optionally attached to the inorganic substance via a linker, can also be located on the surface of the solid.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: October 12, 2004
    Assignee: W. R. Grace & Co. Conn.
    Inventor: Richard Franklin Wormsbecher
  • Patent number: 6802967
    Abstract: Liquid chromatography based on the difference of two or more kinds of separation modes, (e.g., chemical or physical properties of analytes) may improve separations when samples contain complex mixtures. In this invention, the analytes separated on the 1st analysis system (consisting of the 1st column and the 1st mobile phase) will be trapped onto individual trapping columns. Then the trapped analytes will be loaded onto the 2nd analysis system consisting of the 2nd column and the 2nd mobile phase. This invention has the trapping and loading mechanism consisting of a combination of switching valves necessary to produce the serial separations. Also this invention has the capability to affect online desalting when it is needed depending on a detector or the nature of the analyte mixture.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: October 12, 2004
    Assignees: Shimadzu Corporation, The United States of America as represented by the Department of Health and Human Services
    Inventors: Junichi Masuda, Edward J. Unsworth, Jeffrey A. Kowalak, Sanford P. Markey
  • Patent number: 6802968
    Abstract: An apparatus for use in liquid chromatography involves a column filled with media bounded axially by first and second porous plates. The column has an inlet end with an inflow region between the inlet end and the first porous plate. The column also has an outlet end with an outflow region between the outlet end and the second porous plate. The inflow region may be substantially longer than the outflow region. The porous plates may be moveable under pressure so as to compress the media.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: October 12, 2004
    Assignee: Biotage, Inc.
    Inventors: Peter J. Leavesley, Peter C. Van Davelaar, Robert D. Lockman, Ivan Hargro, Jeffrey A. Horsman, Peter C. Rahn
  • Patent number: 6802969
    Abstract: A prepartive chromatography system, and a separation and purification method using the system, are provided for small scale, low cost, efficient multicomponent separation and purification without the drawbacks of conventional separation and purification systems. The chromatography system and the separation and purification method using it include three or more column units arranged in parallel, and their outlets, from which fractions are taken out, are connected to the same flow path.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: October 12, 2004
    Inventor: Takenori Tanimura
  • Patent number: 6802970
    Abstract: A fluid-treating device containing a distributing device having a revolving disc in a stationary housing, and a motor for rotating the disc. Feed and discharge pipes are connected to an end wall of the housing and open onto the revolving disc. Stationary vessels are connected to the housing via connecting pipes. The revolving disc includes a plurality of passageways that open on the outer side of the disc. For a number of positions of the disc, the passageways are each connected to one of the connecting pipes, while feed and discharge pipes open via ring-like ducts into different passageways.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: October 12, 2004
    Assignee: Puritech Besloten Vennootschap met beperkte aansprakelijkheid
    Inventor: Filip Rochette
  • Patent number: 6802971
    Abstract: An in-vivo plasmapheresis and/or in-vivo ultrafiltration membrane comprises a plurality of elongated hollow fibers each fiber having an interior lumen extending along the fiber length, the fiber wall having a plurality of zones between the inner and outer wall surfaces, each of the zones having a mass density different than the mass density of an adjacent zone. The fiber wall is characterized by having a lower mass density zone at the inner wall surface and a higher mass density zone at the outer wall surface.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: October 12, 2004
    Assignee: Transvivo Inc.
    Inventors: Reynolds Gorsuch, Henry Grage
  • Patent number: 6802972
    Abstract: High flux porous hollow fiber membranes are produced from perfluorinated thermoplastic polymers by extruding a heated solution of the polymer having a lower critical solution temperature directly into a cooling bath to form the porous membrane by liquid-liquid phase separation. Extrusion can be conducted either vertically or horizontally.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: October 12, 2004
    Assignee: Mykrolis Corporation
    Inventors: Kwok-Shun Cheng, Rajnikant B. Patel, T. Dean Gates
  • Patent number: 6802973
    Abstract: High flux porous hollow fiber membranes are produced from perfluorinated thermoplastic polymers by extruding heated solution of the polymer having a lower critical solution temperature directly into a cooling bath to form the porous membrane by liquid-liquid phase separation. Extrusion can be conducted either vertically or horizontally.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: October 12, 2004
    Assignee: Mykrolis Corporation
    Inventors: Kwok-Shun Cheng, Rajnikant B. Patel, T. Dean Gates
  • Patent number: 6802974
    Abstract: A three-stage method used for producing biogas having a high methane content from organic substances includes aerobic fermentation, a charring and thermophilic methane fermentation.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: October 12, 2004
    Inventors: Erich Rebholz, Johann Reithmayer
  • Patent number: 6802975
    Abstract: The invention relates to a method of biological treatment of wastewater by means of activated sludge, wherein the wastewater is introduced first into an aerated activated sludge tank (B tank) and then by turns into one of several sedimentation and recirculation tanks (SU tanks), which are permanently linked with said B tank and in which a separation of activated sludge and clear water occurs, and after separation activated sludge is returned to the B tank and clear waters is drawn off; several times a day, in the SU tanks an operating cycle proceeds comprising a stirring phase (R phase), a pre-settling phase (V phase) and a discharge phase (A phase). In the R phase the activated sludge is remixed with the water, in the V phase the activated sludge settles down and in the A phase clear water is drawn off (single basin technique).
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: October 12, 2004
    Inventor: Kurt Ingerle
  • Patent number: 6802976
    Abstract: A process for reducing organic sulfur in a fluid, which comprises an organic sulfur compound, comprises contacting the fluid with an oxidizing agent to produce a pretreated fluid and contacting the pretreated fluid with an biologically active solid.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: October 12, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Carl Eugene Camp, John George Hnat, Jr.
  • Patent number: 6802977
    Abstract: The present invention relates to a method for obtaining a purified solid powder from highly concentrated, semi-liquid, high viscous solutions containing one or more solutes and a first solvent. The method comprises contacting the highly concentrated solution with a second solvent under high shear mixing, wherein the second solvent is miscible with the first solvent and wherein the solute has very low solubility or no solubility at all in the second solvent. Thereby a suspension of purified fine particles is obtained which can be easily separated to obtain a fine powder of the solute.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: October 12, 2004
    Assignee: Oladur Ltd.
    Inventors: Uriel G. Cegla, Moshe Shuster
  • Patent number: 6802978
    Abstract: A process of environmental including a micro application of floating/coagulating material in the watercourse, followed by micro flocculation to aggregate particles in suspension downstream, defining flakes of greater dimensions; submit the aggregated particles, dissolution and air injection, causing a micro floatation of aggregated particles; allowing a micro aggregation of the floating material downstream; next, the flow water is thrown into a streamlet/secondary effluent, submitted to air injection or aeration; a medium application of flocculating/coagulation material in this secondary watercourse to aggregate particles downstream, evidencing flakes of greater dimensions; submit aggregated particles downstream to dissolution and injection of air, submitting the urban watercourse to air injection or aeration intercalating, causing a macro floatation of aggregated particles and a macro aggregation of the floating material downstream; removing such material along an urban section before the effluent reaches th
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: October 12, 2004
    Inventors: João Carlos Gomes de Oliveira, Elizabeth Maniero Gomes de Oliveira
  • Patent number: 6802979
    Abstract: A composition having a depot effect and a method for treating polluted waters and water sediments such that constituents that are hazardous to water are essentially decomposed or bound. Microbiological decomposition processes are long-term supported and water quality is improved without adding salt or decreasing the pH value. The composition contains one or more compounds which are produced by converting iron(III) nitrade and/or aluminium nitrade and hydrogen peroxide in the presence of a base and release oxygen and/or nitrations as oxygen donors in a prolonged manner when contacting water.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: October 12, 2004
    Inventors: Frank Panning, Klaus Kretschmer, Berit Hillbrecht
  • Patent number: 6802980
    Abstract: A method for removing dissolved arsenic from an aqueous medium comprising adding lime to the aqueous medium, and adding one or more sources of divalent metal ions other than calcium and magnesium to the aqueous medium, whereby dissolved arsenic in the aqueous medium is reduced to a lower level than possible if only the step of adding lime were performed. Also a composition of matter for removing dissolved arsenic from an aqueous medium comprising lime and one or more sources of divalent copper and/or zinc metal ions.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: October 12, 2004
    Assignee: Sandia Corporation
    Inventors: Nadim R. Khandaker, Patrick V. Brady, David M. Teter, James L. Krumhansl
  • Patent number: 6802981
    Abstract: A novel system and method for purification and disinfection of water containing contaminates is provided. The system includes an aeration column, a first intermediate tank, a first mechanical filter, an electric discharge device, a second intermediate tank, a second mechanical filter and a sorption filter. The water is firstly aerated by continuous mixing the water with air and ozone-air mixture. The water obtained after the aeration is treated with coagulant materials in a medium of the ozone-air mixture. Further, the water is filtered from coagulated particles. Thereafter, the water is treated by electric discharges in an air medium. The water is then treated again with coagulant materials. Finally, the water is filtered from remaining contaminates.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: October 12, 2004
    Assignee: Aquapure Technologies Ltd.
    Inventors: Natalia Grigorievna Ryazanova, Nikolay Danilovich Ryazanov
  • Patent number: 6802982
    Abstract: Blood processing systems and methods convey whole blood from a donor into a centrifugal separation device for separation into red blood cells and a plasma constituent. The plasma constituent and red blood cells are removed from the separation device at least in part while whole blood is conveyed into the separation device. The systems and methods generate, at least in part while whole blood is conveyed into the separation device and plasma constituent and red blood cells are removed from the separation device, a control command affecting separation within the separation device based, at least in part, upon a factor representing hematocrit of red blood cells separated in the separation device.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: October 12, 2004
    Assignee: Baxter International Inc.
    Inventor: Richard I. Brown
  • Patent number: 6802983
    Abstract: A method and system for separating impurities, such as large abrasive particles and foreign matter from an abrasive polishing slurry prior to a Chemical Mechanical Polishing (CMP) procedure performed on a surface of a semiconductor wafer. Impurities greater than about 25 microns are removed by an initial filtration process. The filtrate is then introduced to a solid bowl, sedimentation-type centrifuge to remove particles greater than 0.5 microns thereby providing a polishing slurry for final utilization in a CMP procedure that reduces damage to the surface of the polished semiconductor wafer.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: October 12, 2004
    Assignee: Advanced Technology Materials, Inc.
    Inventors: William Mullee, Glen Jenkins, Michael Jones
  • Patent number: 6802984
    Abstract: This invention is directed to processes designed to recover water used in certain aspects of the processing of poultry, treat the recovered water to remove solids, fats, oils and greases, animal proteins and pathogenic organisms and to reuse the treated water for poultry processing operations. Although the reuse points will vary from plant to plant depending upon specific water consumption volumes, type of processing operations conducted by the facility and regulatory requirements and approvals, there are a number of reuse points which are preferred based upon treated water quality requirements, material balances relating to the capacity to recover process streams and the consumption volumes at the identified reuse points, and source waters that have been shown to have the least total contaminant loading.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: October 12, 2004
    Assignee: Zentox Corporation
    Inventors: Michael Perkins, Joe Phillips, Dale Gann, Richard Miller
  • Patent number: 6802985
    Abstract: There is provided a method for fabricating electrical wirings capable of being manufactured with low cost and easily applied to large-scale substrates. A photosensitive ground resin film is formed on an insulating substrate by coating process. The ground resin film is subjected to exposure and development processes, by which a ground resin film patterned into a wiring pattern is obtained. Then, on the patterned ground resin film, a low-resistance metal film made of Cu is formed by electroless plating.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: October 12, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshimasa Chikama, Yoshihiro Izumi
  • Patent number: 6802986
    Abstract: Deflectors are disclosed that are suitable for use in various charged-particle-beam (CPB) optical systems as used, for example, in CPB microlithography systems. The deflectors produce a strong magnetic beam-deflecting field when energized with a relatively small electrical current. The beam-deflecting field thus produced is stable with respect to temperature changes, is little affected by eddy currents, and exhibits low aberration caused by manufacturing tolerances of the coil and core. In an exemplary method for manufacturing such a deflector, a magnetic-tape laminate is used as the core. Also, high-precision positioning of the coil and the magnetic-tape laminate is performed using photolithography and electrocasting. Positioning of the magnetic-tape laminate can be performed using a resist pattern formed by photolithography.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: October 12, 2004
    Assignee: Nikon Corporation
    Inventor: Katsushi Nakano
  • Patent number: 6802987
    Abstract: Ferroelectric materials useful in monolithic uncooled infrared imaging use Ca and Sn substitutions in PbTiO3 and also have alternatives with dopants such as Dy, Ho, Bi, Ce, and Fe. The ferroelectrics may also be used in non-volatile integrated circuit memories.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: October 12, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: K R Udayakumar, Howard R. Beratan, Charles M. Hanson
  • Patent number: 6802988
    Abstract: Antifreeze concentrates are based on a mixture of at least two different C3- to C16-dicarboxylic acids, molybdate and a mixture of at least two different triazoles or thiazoles.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: October 12, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Wenderoth, Ralf Strauss, Jacques Lonchampt
  • Patent number: 6802989
    Abstract: A liquid crystal polyester resin comprising 1 to 500 mmol % of a recurring unit derived from 4-hydroxyisophthalic acid and/or salicylic acid as a comonomer and 10 to 5,000 ppm in terms of an alkali metal of an alkali metal compound. This resin has excellent colorability, improved heat resistance and high mechanical properties.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: October 12, 2004
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyusho
    Inventors: Ryuzo Ueno, Masaya Kitayama, Kiichi Kometani, Hiroyuki Kato, Kazunori Ueda
  • Patent number: 6802990
    Abstract: A fluorescent substance for vacuum ultraviolet radiation excited light-emitting devices which emits light with a high luminance and is subject to only a small decrease in luminance due to exposure to plasma or the like, and a vacuum ultraviolet radiation excited light-emitting device including the fluorescent substance are provided. The fluorescent substance is represented by the general formula: mM1O·nM2O·2M3O2, wherein M1 is at least one metal selected from the group consisting of Ca, Sr and Ba, M2 is at least one metal selected from the group consisting of Mg and Zn, M3 is at least one metal selected from the group consisting of Si and Ge, and m and n satisfy 0.5≦m≦3.5 and 0.5≦n≦2.5, respectively. Either Eu and Mn can be used as an activator.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: October 12, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kenji Toda, Mineo Sato, Keiji Ono, Susumu Miyazaki, Takashi Takeda
  • Patent number: 6802991
    Abstract: A CsX:Eu phosphor produced by heating a cesium halide with a Europium compound containing one or more halides selected from the group consisting of F, Cl, Br and I. Preferably the Europium compound is selected from the group consisting of EuX′2, and EuX′3 and EuX′, X′ being one or more halides selected from the group consisting of F, Cl, Br and I. The invention also includes novel phosphors having properties inherent to the manufacturing process as well as other phosphors containing a mixture of Br and Cl in the cesium halide, europium doped phosphor. A method for preparing a binderless phosphor screen using these phosphors and a method for recording and reproducing an X-ray image using such screens are also disclosed.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: October 12, 2004
    Assignees: Symyx Technologies, Inc., AGFA-Gevaert, N.V.
    Inventors: Martin Devenney, Casper Reaves, Paul Leblans, Luc Struye
  • Patent number: 6802992
    Abstract: Non-green anti-Stokes luminescent material, comprising the elements Ln, erbium (Er) and ytterbium (Yb), Ln representing at least one element which is selected from the group consisting of yttrium (Y), gadolinium (Gd), scandium (Sc) and lanthanum (La), a process for its production and its use.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: October 12, 2004
    Inventors: Jürgen Wieczoreck, Alfred Siggel, Uwe Fischbeck
  • Patent number: 6802993
    Abstract: A photochromic cured product which has excellent photochromism such as high color density and high fading speed, excellent adhesion to a hard coat and high striping work efficiency. This cured product is obtained by polymerizing and curing a curable composition which comprises (A) a polyfunctional polymerizable monomer such as trimethylolpropane trimethacrylate, (B) a silyl monomer such as &ggr;-methacryloyloxypropyl trimethoxysilane, (C) another radically polymerizable monomer and (D) a photochromic compound. As for the contents of the polymerizable monomers, the content of the component (A) is 1 to 50 wt %, the content of the component (B) is 0.5 to 20 wt % and the balance consists of the component (C) based on the total of the components (A), (B) and (C). The photochromic compound (D) is contained in an amount of 0.0001 to 10 parts by weight based on 100 parts by weight of the total of the components (A), (B) and (C).
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: October 12, 2004
    Assignee: Tokuyama Corporation
    Inventors: Junji Momoda, Toshiaki Otani
  • Patent number: 6802994
    Abstract: Corrosion-inhibited fire retardant compositions and methods of making and using the same are provided. The corrosion-inhibited fire retardant compositions are comprised of at least one fire retardant component, a suspending agent, and a corrosion inhibiting system. The corrosion inhibiting system is comprised of at least one corrosion inhibiting compound selected from a group of compounds including azoles, insoluble ferric pyrophosphate, soluble ferric pyrophosphate, ferrous oxalate, ferric citrate, ferrous sulfate, ferric ammonium citrate, insoluble ferric orthophosphate, soluble ferric orthophosphate, ferric ammonium oxalate, ferric ammonium sulfate, ferric bromide, ferric sodium oxalate, ferric stearate, ferric sulfate, ferrous acetate, ferrous ammonium sulfate, ferrous bromide, ferrous gluconate, ferrous iodide, ferric acetate, ferric fluoroborate, ferric hydroxide, ferric oleate, ferrous fumarate, ferrous oxide, ferric lactate, ferric resinate and any combination thereof.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 12, 2004
    Assignee: Astaris LLC
    Inventors: Gary H. Kegeler, Howard L. Vandersall
  • Patent number: 6802995
    Abstract: An internal bubble cooling air control system in a blown film apparatus has sensors arranged to increase response time and reduce interference, and includes a high speed valve for fast actuation of air flow from a controller in response to signals received from the sensors.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: October 12, 2004
    Assignee: Addex, Inc.
    Inventor: Robert E. Cree
  • Patent number: 6802996
    Abstract: A method and an apparatus capable of extrusion molding a comparatively wide, thin ceramic sheet using a screw extruder while suppressing the wrinkling thereof. The molding apparatus includes a screw-type extruder and a mold at the forward end of the extruder is used to extrusion mold a ceramic sheet from the ceramic material introduced into the extruder by way of the mold. The extrusion molding is carried out while regulating the temperature of the portion of the ceramic material passing through the mold corresponding to each of a plurality of areas (control zones) into which the mold is divided.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: October 12, 2004
    Assignee: Denso Corporation
    Inventors: Tadashi Tsuruta, Satoru Yamaguchi
  • Patent number: 6802997
    Abstract: The present invention provides a method of manufacturing a rigid polyurethane foam material, a method of manufacturing a refrigerator using the material, and a refrigerator manufactured by the same method. The method includes recovering highly purified rigid polyurethane foam from a scrapped refrigerator, and decomposing the rigid polyurethane foam for recycling. The method includes steps of: shredding a scrapped refrigerator containing rigid polyurethane foam in order to separate rigid polyurethane foam lumps; grinding the rigid polyurethane foam lumps into a rigid polyurethane foam powder; liquefying the rigid polyurethane foam powder by either aminolysis reaction or glycolysis reaction; reacting thus obtained liquefied rigid polyurethane foam powder and supercritical/sub-critical water in order to decompose the rigid polyurethane foam powder into a crude material; and fractionating the crude material to obtain a raw material of rigid polyurethane foam.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: October 12, 2004
    Assignee: Matsushita Refrigeration Company
    Inventors: Kazutaka Uekado, Akiko Yuasa
  • Patent number: 6802998
    Abstract: A method of molding an elastomeric article comprises: putting an elastomeric article in a mold; softening the elastomeric article in the mold by heating the elastomeric article; pressing the elastomeric article against the mold by pressurizing an inside of the elastomeric article by letting a fluid therein; and changing the pressure of said fluid in a short cycle so as to beat the elastomeric article against the mold repeatedly.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: October 12, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Ryo Ono
  • Patent number: 6802999
    Abstract: A method is provided for the fabrication of a protective coating for a crucible with channels being formed in the coating. A material is adhered to the outer wall of the crucible to form a pattern thereon. The outer wall of the crucible along with the pattern of material adhered thereto is next coated with another material. The material used to form the pattern should extend through the outer material coating to define at least one port therein. Next, the crucible with its pattern of material and outer coating material is heated to a temperature of transformation at which the pattern of material is transformed to a fluidic state while the crucible and outer coating material maintain their solid integrity. Such transformation could also be accomplished by using a solvent that causes the pattern of material to dissolve.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: October 12, 2004
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Richard N. Grugel
  • Patent number: 6803000
    Abstract: A soft stretch yarn produced by spinning yarn of conjugate fibers including two types of polyester in which one component is PTT at a take-up velocity of at least 1200 m/min, drawing at a drawing temperature of 50 to 80° C. at a draw ratio such that the drawn yarn tensile elongation is 20 to 45%, and then heat setting.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: October 12, 2004
    Assignee: Toray Industries, Inc.
    Inventors: Takashi Ochi, Katsuhiko Mochizuki, Yuhei Maeda
  • Patent number: 6803001
    Abstract: A method of manufacturing a panel unit having a curved panel and a directly extruded molding. The peripheral edge of the curved panel is moved relative to an extrusion port of an extrusion molding die and a resin molding material is simultaneously extruded directly onto a peripheral edge of the curved panel. While extruding the molding material, the peripheral edge of the curved panel is tilted in response to movement of the curved panel relative to the extrusion port in order to maintain a constant angle between the peripheral edge of the curved panel and the extrusion port.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: October 12, 2004
    Assignee: Tokai Kogyo Kabushiki Kaisha
    Inventors: Toshikazu Ito, Yoshihiro Suita
  • Patent number: 6803002
    Abstract: A method for treating the surfaces and edges of a block to mimic the appearance of natural stone. The apparatus and method can treat up to four sides of a block, can be adjusted to provide varying degrees of surface and edge treatment, and useful in high volume block production equipment. Blocks are produced having a natural, weathered appearance without the damage, breakage, dust, or expense associated with conventional splitting and tumbling methods.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: October 12, 2004
    Assignee: Keystone Retaining Wall Systems, Inc.
    Inventors: Antal Z. Suto, John A. Campau, John Daniel Campau, Donald L. Reuschel, Robert A. MacDonald
  • Patent number: 6803003
    Abstract: Methods for preparing fibrous monolith composite materials include continuously extruding cell and boundary material compositions. A filament is formed from a cell material composition and passed through a chamber of an extrusion assembly. A boundary material composition is extruded generally about the cell material composition filament and the two material compositions are co-extruded to form an extruded coated filament.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: October 12, 2004
    Assignee: Advanced Ceramics Research, Inc.
    Inventors: Mark J. Rigali, Manish P. Sutaria, Felix H. Gafner, Ronald A. Cipriani, Randy Egner, Randy C. Cook