Patents Issued in January 15, 2002
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Patent number: 6338752Abstract: A biphasic cement of &agr;-TCP/HAP is primarily composed of 30-60 wt % &agr;-tricalcium phosphate (Ca3(PO4)2, &agr;-TCP) and 40-70 wt % of hydroxyapatite (Ca10(PO4)6(OH)2, HAP). The biphasic cement of &agr;-TCP/HAP of the present invention is superior since it can set rapidly while soaking in a water solution. The present invention also provides a process for preparing the biphasic cement of &agr;-TCP/HAP, in which the composition of the biphasic cement of &agr;-TCP/HAP can be controlled.Type: GrantFiled: April 20, 2000Date of Patent: January 15, 2002Assignee: Purzer Pharmaceutical Co., Ltd.Inventors: Feng-Huei Lin, Chun-Jen Liao
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Patent number: 6338753Abstract: Powder product for the protection of molds for centrifugal casting of cast iron tubes, and a method for its production. The powder contains a mixture of a silicon-based inoculating agent and a mineral powder, the silicon-based inoculating product comprising waste masses from synthesis of alkyl- or aryl- halosilanes, from which tin and optionally copper has been removed. The mineral powder may contain at least one material selected from the group consisting of carbon and a fluoride.Type: GrantFiled: January 5, 1999Date of Patent: January 15, 2002Assignee: Pechiney ElectrometallurgieInventors: Thomas Margaria, Roland Siclari
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Patent number: 6338754Abstract: A synthetic gasket material and the method for make such is described. This invention is specifically adapted for use in high-pressure, high-temperature presses. This material is made from a compacted, granulated and dried mixture of talc, garnet, and sodium silicate. This composition provides an alternative to the use of natural pyrophyllite as the material for gasket components, thereby reducing the cost of the materials. This composition can be pressed to net or near net geometry, thereby generating less waste. Moreover, this composition provides more consistency for the gasket components. Furthermore, this material has improved thermal insulator properties, thereby leading to lower power consumption used in the high-pressure, high-temperature presses.Type: GrantFiled: May 31, 2000Date of Patent: January 15, 2002Assignee: US Synthetic CorporationInventors: Randy S. Cannon, Kevin G. Graham
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Patent number: 6338755Abstract: An amorphous film 2 is formed on a single crystalline substrate 1. Then, the amorphous film is selectively removed by photolithography to form windows 3. Subsequently, the windows 3 are contacted with a supersaturated solution 5 dissolving a given element in supersaturation and thereby, single crystals containing the given element as a constituting element are epitaxially grown in a perpendicular direction to a surface of the single crystalline substrate from the windows. Then, after a given time elapsed, the epitaxial growth is stopped by finishing the contact of the windows with the supersaturated solution 5 and single crystalline members 6 having given sizes and shapes are obtained.Type: GrantFiled: May 9, 2000Date of Patent: January 15, 2002Assignee: The University of TokyoInventor: Tatau Nishinaga
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Patent number: 6338756Abstract: A process for forming an epitaxial layer on a semiconductor wafer substrate is provided. The process comprises providing a semiconductor wafer substrate and an area for forming an epitaxial layer on said semiconductor wafer substrate. The formation area consists essentially of an epitaxial layer process chamber. The semiconductor wafer substrate is introduced into the epitaxial layer process chamber and an epitaxial layer is formed on at least one surface of the semiconductor wafer substrate. At least one epitaxial layer surface is substantially hydrophobic. Then, a chemical reagent is introduced into said epitaxial layer process chamber. The chemical reagent reacts with the epitaxial layer surface in situ to form an outer layer.Type: GrantFiled: December 15, 2000Date of Patent: January 15, 2002Assignee: SEH America, Inc.Inventor: Gerald R. Dietze
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Patent number: 6338757Abstract: The present invention was achieved in order to provide an apparatus for pulling a single crystal with which a single crystal having a low density of grown-in defects called infrared scatterers, dislocation clusters or the like can be grown. In the apparatus for pulling a single crystal having a crucible to be charged with a melt, a heater arranged around the crucible, a straightening vane in the shape of a side surface of an inverted truncated cone or a cylinder surrounding a pulled single crystal and a heat shield plate for inhibiting the radiant heat from diverging upward in the chamber from the side surface of the pulled single crystal located in the vicinity of the melt surface are arranged.Type: GrantFiled: July 7, 2000Date of Patent: January 15, 2002Assignee: Sumitomo Metal Industries, Ltd.Inventors: Manabu Nishimoto, Masahiko Okui, Takayuki Kubo, Shingo Kizaki, Junji Horii
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Patent number: 6338758Abstract: A paint rack system for consolidating doors and shutters for spray painting and storing in an organized assembly. The system generally comprises an elongate base having opposite ends and a longitudinal axis. The longitudinal axis of the base is extended between the ends of the base, such that the ends of the base define a base length therebetween. A plurality of ground engaging members are coupled to the base. An elongate main beam has opposite ends and a longitudinal axis. The longitudinal axis of the main beam is extended between the ends of the main beam, and the ends of the main beam define a main beam length therebetween. The main beam is slidably mounted to the base, with the main beam being rotatably mounted to the base such that the main beam is rotatable about an axis of rotation being upwardly extended from the base. The axis of rotation is substantially perpendicular to the longitudinal axis of the base.Type: GrantFiled: March 31, 2000Date of Patent: January 15, 2002Inventor: William F. Curran
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Patent number: 6338759Abstract: A metal organic chemical vapor deposition apparatus comprising a source ampule, a liquid micro-pump, a vaporizer equipped with a solvent supply means, and a reactor. A reactant dissolved in a solvent in the source ampule is transferred to the vaporizer by the liquid micro-pump. A sufficient amount of the solvent is additionally fed to the vaporizer by the solvent supply means, concurrently with the transfer, and vaporized along with the reactants. After being vaporized in the vaporizer, the reactant is injected to the reactor by carrier gas and deposited on a semiconductor substrate to form a high dielectric thin film. By virtue of the additional supplied solvent, the recondensation of the reactant in the vaporizer, which is attributed to the separation of the solvent from the reactant, can be prevented in the vaporizer and in the transfer line between the vaporizer and the reactor.Type: GrantFiled: October 28, 1999Date of Patent: January 15, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Yong Sik Yu, Yong Ku Baek, Young Jin Park, Jong Choul Kim
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Patent number: 6338760Abstract: A method is provided for final rinsing in a dish washing machine with clean hot water from a water heater having an elongated standing flow tank which has a cold water inlet with a shut-off valve at the bottom and a hot water outlet at the top and a heating element in the lower part. The temperature of the water is sensed at a location above the lower end of the tank. The shut-off valve is opened for supply of cold water under pressure to the lower end of the tank. Hot water is delivered from the upper end of the tank. The period from opening of the shut-off valve to the time of sensing a temperature decrease in a boundary layer between hot and cold water at the above-mentioned location is measured and on the basis thereof the flow and the period for movement of the boundary layer from this location to a desired position in the tank is calculated.Type: GrantFiled: October 4, 1999Date of Patent: January 15, 2002Assignee: G S Development ABInventors: Kjell Landaeus, Max Landaeus
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Patent number: 6338761Abstract: With the intention of establishing fabrication methods for cheaply produced (Fe,Co)—Cr—B—R-type bonded magnets or (Fe,Co)—Cr—B—R—M-type bonded magnets containing few rare earth elements and having a coercive force iHc above 5 kOe and a residual magnetic flux density Br above 5.Type: GrantFiled: February 1, 2000Date of Patent: January 15, 2002Assignee: Sumitomo Special Metals Co., Ltd.Inventors: Hirokazu Kanekiyo, Satoshi Hirosawa
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Patent number: 6338762Abstract: An austenitic stainless steel for use in engine gaskets having a high fatigue strength and resistance to settlement and method of manufacture thereof. The austenitic stainless steel is prepared by cold rolling at least 40%, annealing at a temperature of 700° C. to 900° C. followed by temper rolling with a reduction of at least 40%. The metal structure obtained by annealing is a recovered unrecrystallized structure or a mixed structure of a recovered unrecrystallized structure and a recrystallized structure. The austenitic stainless steel includes at most 0.03% C, at most 1.0% Si, at most 2.0% Mn, 16.0% to 18.0% Cr, 6.0% to 8.0% Ni and up to 0.20% N.Type: GrantFiled: May 3, 2000Date of Patent: January 15, 2002Assignee: Sumitomo Metal Industries, Ltd.Inventors: Naoto Sato, Kazuhiko Adachi, Kenichi Goshokubo, Takashi Katsurai, Shigeki Muroga
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Patent number: 6338763Abstract: This invention provides an oil-tempered wire having high strength (tensile strength of not less than 1960 MPa) and excellent workability and specifically provides a steel wire for high-strength springs comprising as steel components, in weight percent, C 0.4-0.7% Si 1.2-2.5% Mn 0.1-0.5% Cr 0.4-2.0% Al 0.0001-0.005%, and being limited to P not more than 0.015% and S not more than 0.015%, the balance being Fe and unavoidable impurities, the steel wire having no nonmetallic inclusions of a size greater than 15 &mgr;m, a tensile strength of not less than 1960 MPa, and a yield ratio (&sgr;0.2/&sgr;B) of not less than 0.8 and not greater than 0.9 or a yield ratio (&sgr;0.2/&sgr;B) of not less than 0.8 and an amount of residual austenite of not greater than 6%. This invention also provides a method of producing the steel wire.Type: GrantFiled: September 27, 1999Date of Patent: January 15, 2002Assignees: Nippon Steel Corporation, Suzuki Metal Industry Co., Ltd.Inventors: Masayuki Hashimura, Hiroshi Hagiwara, Takanari Miyaki, Hiroaki Hayashi, Shoichi Suzuki, Ikuo Ochiai
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Patent number: 6338764Abstract: To provide a hydrogen absorbing alloy having a BCC (body-centered cubic structure) as a crystal structure, and particularly a hydrogen-absorbing alloy for a nickel-hydride cell having excellent discharge capacity and durability (cycle characteristics), said hydrogen-absorbing alloy having a composition expressed by the general formula Ti(100−a−b−c−d)CraVbNicXd, where X is at least one member selected from the group consisting of Y (yttrium), lanthanoids, Pd and Pt, and each of a, b, c and d is represented, in terms of at %, by the relations 8≦a≦50, 30<b≦60, 5≦c≦15, 2≦d≦10 and 40≦a+b+c+d≦90, wherein the crystal structure of a principal phase is a body-centered cubic structure, and further, the alloy contains at least one of Mo and W in place of V and at least one member selected from the group consisting of Y (yttrium), lanthanoids, Pd and Pt, and its crystal structure is converted to the body-centered cubic structure by heat-treatment.Type: GrantFiled: April 29, 1999Date of Patent: January 15, 2002Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshihiro Mori, Hideki Iba
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Patent number: 6338765Abstract: This invention provides methods of treatment for work products of materials such as steel, bronze, plastic, etc. and particularly welded steel bodies by pulse impact energy, preferably ultrasonic, to relax fatigue and aging and extend expectant life. The treatment may occur (a) at original production, (b) during the active life period for maintenance or (c) after failure in a repair stage. The ultrasonic treatment improves the work product strength. In welded products residual stress patterns near the weld sites are relaxed and micro-stress defects such as voids and unusual grain boundaries are reduced. The basic method steps are non-destructive in nature, inducing interior pulse compression waves with ultrasonic transducers and accessory tools impacting an external product surface with enough impulse energy to heat and temporarily plasticize the metal interior and relax stresses.Type: GrantFiled: April 8, 1999Date of Patent: January 15, 2002Assignee: UIT, L.L.C.Inventor: Efim S. Statnikov
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Patent number: 6338766Abstract: To make it possible to precisely bond a tube blank having thickened portions projecting from an outer wall surface of a retention mold. A tube blank is formed of natural rubber and is provided with an air chamber peripheral wall, a sealant chamber peripheral wall and a partition. The tube blank has ends held by the retention mold which are bonded in an annular shape. The retention molds include an upper mold and a lower mold having respective retaining surfaces. Indents are provided in the retaining surface of the lower mold for engaging with the thickened portions projecting from the air chamber peripheral wall of the tube blank. By forming the indents in the retention surfaces of the lower molds, it is possible to hold the two ends of the tube blank without warping the tube blank and to precisely bond the two ends of the tube blank together.Type: GrantFiled: February 19, 1999Date of Patent: January 15, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Toshio Yamagiwa
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Patent number: 6338767Abstract: A circuit component built-in module of the present invention includes an insulating substrate formed of a mixture comprising 70 wt % to 95 wt % of an inorganic filler and a thermosetting resin, a plurality of wiring patterns formed on at least a principal plane of the insulating substrate, a circuit component arranged in an internal portion of the insulating substrate and electrically connected to the wiring patterns, and an inner via formed in the insulating substrate for electrically connecting the plurality of wiring patterns. Thus, a highly reliable circuit component built-in module having high-density circuit components can be obtained.Type: GrantFiled: January 18, 2000Date of Patent: January 15, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Seiichi Nakatani, Kouichi Hirano
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Patent number: 6338768Abstract: A method is provided for manufacturing a shoe insole. First, high density thermoplastic material and low density thermoplastic material are conveyed through two feed pipes respectively into a heated pressing machine. When the high and low density thermoplastic materials are conveyed through a mold head of the pressing machine, they are heated and pressed to bond with each other to form an elongated flat dual density plastic plate structure which is then rolled by rollers of a rolling machine so as to fit the thickness of a shoe insole.Type: GrantFiled: July 7, 2000Date of Patent: January 15, 2002Inventor: Cheng-Te Chi
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Patent number: 6338769Abstract: A method to obtaining a product formed by a discontinuous/interrupted material and backing, using a continuous gluing/heating machine. A base material is provided with a thermo adhesive resin or an elastomer. A discontinuous/interrupted material is placed over the base material and pressed or joined to form a product comprising the base material and the discontinuous/interrupted material. The combined produce undergoes a predetermined temperature and a predetermined pressure.Type: GrantFiled: December 11, 1998Date of Patent: January 15, 2002Inventor: Jorge Salles Rabasa
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Patent number: 6338770Abstract: A method and apparatus for sealing a business form having pressure activated adhesive utilizes a minimum amount of equipment in a simple arrangement that has optimum versatility. Sealing is accomplished utilizing a first set of rolls which has a first substantially continuous roll and a second roll having a non-round shape with at least one projection (and typically having a configuration that in end view substantially simulates an airplane propeller including first and second projections angularly spaced about 180°). The first and second rolls are mounted in position for rotation about parallel axes so that the projections come into operative association with the first roll to perform the sealing action in a first position, and at a second position the entire second roll is not in operative association with the first roll. A stepper motor controls the rotation of the second roll.Type: GrantFiled: February 11, 2000Date of Patent: January 15, 2002Assignee: Moore North America, Inc.Inventor: Lee T. Spranger
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Patent number: 6338771Abstract: In a process and an apparatus for detaching a lining of thin composite material from a central region, the detachment operation is effected in a continuous procedure with the composite material in the form of an endless web. The composite material passes as a treatment region successively through an initial dissolution region and a deactivation region, in each of which inter alia moisture is fed to the composite material. The residence times in those regions are controllable independently of each other and at least at the end of those regions a respective operation for the preliminary removal of moisture from the composite material is effected. After the last region the composite material is subjected to a drying operation and the lining is detached from the central material by their being moved away from each other.Type: GrantFiled: May 3, 2000Date of Patent: January 15, 2002Assignee: Becker Preservotec GmbHInventors: Ernst Becker, Wolfgang Wächter, Hans-Peter Gaibler, Hans-Peter Schommer
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Patent number: 6338772Abstract: A polyolefin synthetic pulp comprising a polyolefin resin graft-modified with an unsaturated carboxylic acid or a derivative thereof, and/or a polyolefin resin composition which comprises an ethylene/&agr;,&bgr;-unsaturated carboxylic acid copolymer and a polyethylene resin. Further, there is provided a heat sealing paper comprising a base fiber layer whose at least one surface is laminated and integrated with a layer of the polyolefin synthetic pulp. This polyolefin synthetic pulp has a large breaking length and an excellent internal bond strength, and exhibits stable heat sealing and hot tack properties over a wide temperature range from low to high temperature. The polyolefin synthetic pulp is suitable to use in battery separators, molding fiberboards, heat sealing papers and the like.Type: GrantFiled: October 27, 1999Date of Patent: January 15, 2002Assignee: Mitsui Chemicals INCInventors: Norihiko Nakagawa, Masaki Shoji, Toshikazu Senoo, Makoto Nakamaru, Yukio Kouno
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Patent number: 6338773Abstract: A device for dewatering solid/liquid suspensions, especially pulp suspensions, where the suspension is dewatered between two belts, with one dewatering zone being a wedge zone. A pair of rolls downstream of the wedge zone impart both area pressure and line pressure on the pulp web formed by the pulp suspension.Type: GrantFiled: March 16, 2000Date of Patent: January 15, 2002Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.Inventors: Johann Sbaschnigg, Franz Petschauer, Georg Reck
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Liquid distributor for non-vertical distillation columns, and distillation column including the same
Patent number: 6338774Abstract: A liquid distributor includes a principal container with a perforated bottom, as well as transport members to transmit, by gravity, the liquid from at least one opening in the perforated bottom, to a supply point not in vertical alignment with this opening.Type: GrantFiled: November 17, 1998Date of Patent: January 15, 2002Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Jean-Yves Lehman -
Patent number: 6338775Abstract: A thin film deposition apparatus and method are disclosed in this invention. The method includes a step of providing a vacuum chamber for containing a thin-film particle source for generating thin-film particles to deposit a thin-film on the substrates. The method further includes a step of containing a substrate holder in the vacuum chamber for holding a plurality of substrates having a thin-film deposition surface facing the thin-film particle source. The method further includes a step of providing a rotational means for rotating the substrate holder to rotate each of the substrates exposed to the thin-film particles for depositing a thin film thereon. And, the method further includes a step of providing a lateral moving means for laterally moving and controlling a duration of exposure time across a radial direction for each of the substrates for controlling thickness uniformity of the thin-film deposited on each of the substrates.Type: GrantFiled: August 7, 2000Date of Patent: January 15, 2002Assignee: Advanced Ion Beam Technology, Inc.Inventor: Jiong Chen
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Patent number: 6338776Abstract: The present invention is directed to allowing a work piece to stabilize in regard to temperature and humidity/water content prior to precision operations so as to minimize any problems resulting from dimensional changes.Type: GrantFiled: February 24, 2000Date of Patent: January 15, 2002Assignee: Honeywell International Inc.Inventor: Richard J. Pommer
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Patent number: 6338777Abstract: Improved apparatus and methods for depositing thin films are described. A sputtering system according to the invention enhances the effects normally achieved with negative voltage bias by having two electrodes driven alternately as anode and cathode by a midfrequency power supply in combination with pulsing a negative bias voltage source for the substrate where the film is being deposited. The invention may be embodied in a multiple disk in-line sputtering system or a single disk sputtering system. Although the invention is potentially useful with any thin film which benefits from being deposited using bias, the described embodiment using the sputtering system according to the invention is for depositing an overcoat on a magnetic disk which is carbon based and includes hydrogen and/or nitrogen.Type: GrantFiled: October 23, 1998Date of Patent: January 15, 2002Assignee: International Business Machines CorporationInventor: Richard Longstreth White
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Patent number: 6338778Abstract: The invention relates to a device, in particular for a laser-induced vacuum are discharge evaporator for depositing of multiple layers with a high level of purity and high deposition rates on large-area components. According to the invention, the material source for the coating material is in a source chamber which can be evacuated and can be separated in a vacuum-tight manner from the actual coating chamber in which the substrate to be coated is located. The evaporator can, in particular, be used for deposition of amorphous carbon layers which are hydrogen-free and superhard and/or which contain hydrogen, in conjunction with high-purity metal layers or for the reactive plasma-enhanced deposition of, for example, oxidic, carbide, nitride hard material layers of ceramic layers or a combination thereof. The corresponding plasma sources can be flange-mounted on any suitable coating chambers and, consequently, also combined with conventional coating processes, for example magnetron sputtering.Type: GrantFiled: January 12, 1999Date of Patent: January 15, 2002Assignees: Bayerische Motoren Werke Aktiengesellschaft, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Daniela Giersch, Robert Schalausky, Goetz Mielsch, Hans-Joachim Scheibe
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Patent number: 6338779Abstract: A cathode arc source apparatus for depositing a coating on a substrate is provided with a monitor for monitoring the cathode arc source. The monitor is useful for monitoring position of an arc spot on the target, plasma emission by the source, or current through or potential difference at a secondary anode. A controller can take actions such as shutting down the source, varying the power or restriking the arc in response to output from the monitor.Type: GrantFiled: October 6, 2000Date of Patent: January 15, 2002Assignee: Filplas Vacuum Technology PTE LtdInventors: Xu Shi, Xiao Zhe Jin, Hong Siang Tan
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Patent number: 6338780Abstract: A method of manufacturing a metallic fiber in which from a convergent extended wire, which is formed by a metallic fiber and a matrix member which is formed of a metallic material and whose dissolvability is higher than the dissolvability of the metallic fiber, the matrix member is continuously dissolved and removed by an electrolytic processing in a plurality of electrolytic tanks which are arranged in the conveying direction of the convergent extended wire, wherein: the convergent extended wire is passed through electrolytes in the plurality of electrolytic tanks, which are arranged in the shape of a gentle convex arch at the vertical direction upper side which includes the conveying passage of the convergent extended wire, the convergent extended wire is passed above a plurality of feeding devices which are provided at the outer sides of the electrolytes and which are disposed in the same arch-shape so as to correspond to the electrolytic tanks, in each of the plurality of electrolytic tanks, the metallicType: GrantFiled: January 9, 2001Date of Patent: January 15, 2002Assignee: Bridgestone Metalpha CorporationInventors: Tadashi Takahashi, Yukio Aoike, Tatsuo Hirayama
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Patent number: 6338781Abstract: The present invention relates to a device for cathode sputtering for producing coatings on a substrate by means of a sputtering cathode, which can be arranged in a vacuum chamber and comprises pole shoes, a target and at least one magnet or ring magnet 9 arranged concentrically with respect to the center axis of the sputtering cathode, wherein a divided yoke is arranged axially symmetrically with respect to the center axis of the sputtering cathode.Type: GrantFiled: August 30, 1999Date of Patent: January 15, 2002Assignee: Singulus Technologies AGInventors: Eggo Sichmann, Michaell Muecke
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Patent number: 6338782Abstract: A gas sensor includes a body having a measurement-gas chamber and a reference-gas chamber. The measurement-gas chamber is supplied with a measurement gas. The reference-gas chamber is supplied with a reference gas. A detecting cell provided in the body includes (1) a solid electrolyte member, (2) a measuring electrode provided on the solid electrolyte member and facing the measurement-gas chamber, and (3) a reference electrode provided on the solid electrolyte member and facing the reference-gas chamber. A heater portion operates for heating the detecting cell. The heater portion includes (1) a first substrate, (2) a heating member provided on the first substrate, (3) a high-voltage-side lead portion provided on the first substrate and electrically connected to the heating member, (4) a low-voltage-side lead portion provided on the first substrate and electrically connected to the heating member, and (5) a second substrate covering the heating member.Type: GrantFiled: November 3, 1999Date of Patent: January 15, 2002Assignee: Denso CorporationInventors: Shinichiro Imamura, Tomio Sugiyama, Akio Tanaka
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Patent number: 6338783Abstract: A gas sensor which can detect the concentration of a combustible gas component in a measurement gas with high accuracy even when the oxygen concentration of the measurement gas or the element temperature changes and which has an excellent response in detecting the combustible gas component is disclosed. In a gas sensor 1, the oxygen concentration of a measurement gas is adjusted to a predetermined level within a first processing space 9 through operation of a first oxygen pump element 3. The measurement gas having an adjusted oxygen concentration is then introduced into a second processing space 10, where a combustible gas component is burned through the assistance of electrodes 16 and 17 functioning as oxidation catalyst sections. Constant voltage is applied to a combustible gas component concentration detection element 5.Type: GrantFiled: November 24, 1999Date of Patent: January 15, 2002Assignee: NGK Spark Plug Co., Ltd.Inventors: Ryuji Inoue, Shoji Kitanoya, Tomohiro Fuma, Kenji Kato, Takafumi Oshima
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Patent number: 6338784Abstract: An apparatus for producing deionized water, comprising an electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged to form demineralizing compartments and concentrating compartments and having ion exchangers accommodated in the demineralizing compartments, and designed to conduct an electric current while supplying water to be treated to the demineralizing compartments, wherein a spacer is arranged in each concentrating compartment to maintain the thickness of the concentrating compartment, and the cation exchange membranes or the anion exchange membranes are incorporated in their dry state in the electrodialyzer, whereby water is supplied to the electrodialyzer, while each ion exchange membrane is brought in contact with the spacer by a pressure from the demineralizing compartment side.Type: GrantFiled: February 26, 1998Date of Patent: January 15, 2002Assignees: Asahi Glass Company Ltd., Glegg Water Conditioning, IncorporatedInventors: Ichiro Terada, Hiroshi Toda, Kazuo Umemura, Mark Philip Huehnergard, David Florian Tessier, Ian Glenn Towe
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Patent number: 6338785Abstract: A method of protecting a cathode during the start-up procedure of an aluminum electrowinning cell where the cathode is optionally coated with an aluminium-wettable refractory material and when in use, aluminium is produced thereon. The start-up procedure comprises applying, before preheating the cell, one or more start-up layers in intimate contact on the aluminium-wettable refractory coating which form(s) a temporary protection against damage of chemical and/or mechanical origin to the aluminium-wettable coating; this temporary protection being eliminated before or during the initial normal cell operation. The temporary protection layers may be obtained from at least one pliable aluminium foil having a thickness of less than 0.1 mm and/or an applied aluminium-containing metallization, optionally in combination with inter alia a boron-containing solution, a polymer, a phosphates of aluminium-containing solution, or a colloid that gels while preheating the cell, or combinations thereof.Type: GrantFiled: April 13, 1999Date of Patent: January 15, 2002Assignee: Moltech Invent S.A.Inventors: Vittorio de Nora, Jainagesh Akkaraju Sekhar, Jean-Jacques Duruz, James Jeng Liu
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Patent number: 6338786Abstract: An improved method of separating hydrogen gas entrained with a first aqueous electrolytic solution of a water electrolyser for producing said hydrogen and said oxygen gas entrained with a second aqueous electrolyte solution, said method comprising producing a first two-phase flow discharge of said hydrogen gas in said first solution; producing a second two-phase flow discharge of said oxygen gas in said second solution; feeding said first discharge to a first separation chamber having a portion defining a hydrogen chamber to effect separation of said hydrogen gas from said first discharge; feeding said second discharge to a second separation chamber having a portion defining an oxygen chamber to effect separation of said oxygen gas from said second discharge; collecting said hydrogen gas from said hydrogen chamber; collecting said oxygen gas from said oxygen chamber; collecting said first discharge; collecting said second discharge; the improvement wherein at least one of said first discharge is discharged inType: GrantFiled: July 16, 1999Date of Patent: January 15, 2002Assignee: Stuart Energy Systems CorporationInventors: Steven J. Thorpe, Raynald G. Lachance, Daniel Tapin
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Patent number: 6338787Abstract: To provide a plating method, which enables wide industrial use of the redox system electroless plating method having excellent characteristics, and a plating bath precursor which is preferable for the plating method. The plating method comprises a process oxidizing first metal ions of a redox system of a plating bath from a lower oxidation state to a high oxidation state, and second metal ions of said redox system are reduced and deposited onto the surface of an object to be plated, wherein a process is provided in which by supplying the electrical current to the plating bath, the first metal ions are reduced from said lower oxidation state to thereby activate the plating bath. The plating bath precursor is formed stabilizing the plating bath so that reduction and deposition of the second metal ions substantially do not occur in order to improve its storing performance.Type: GrantFiled: April 5, 2000Date of Patent: January 15, 2002Assignees: Daiwa Fine Chemicals Co., Ltd., Sumitomo Electric Industries, Ltd.Inventors: Keigo Obata, Dong-Hyun Kim, Takao Takeuchi, Seiichiro Nakao, Shinji Inazawa, Ayao Kariya, Masatoshi Majima, Shigeyoshi Nakayama
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Patent number: 6338788Abstract: An embodiment of the invention is directed to an electrochemical process for removing polymerizable sulfur compounds from a hydrocarbon feed by (a) combining a solvent and electrolyte with a feed comprising hydrocarbon and polymerizable sulfur compounds to form a first mixture; (b) passing said first mixture into an electrochemical reactor to electrochemically oxidize said polymerizable sulfur compounds in said mixture under conditions capable of producing sulfur oligomers from said polymerizable sulfur compounds; (c) separating said oxidized first mixture to obtain a desulfurized hydrocarbon feed, and a second mixture comprising sulfur oligomers, solvent and electrolyte.Type: GrantFiled: March 28, 2000Date of Patent: January 15, 2002Assignee: ExxonMobil Research and Engineering CompanyInventor: Robert Charles Schucker
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Patent number: 6338789Abstract: The invention relates to an apparatus for treating water by means of an electric field. An anode and a cathode are arranged in a treatment chamber. Seed crystals are deposited on the anode and are stripped therefrom to be carried along with the water, which cause crystallization thereon of carbonates contained in the water. Thereby formation of boiler scale, when the water is heated, is reduced. The water from the treatment chamber is exposed to another electric field in an aftertreatment chamber for a dwell time longer than the dwell time in the treatment chamber. Thereby, the growth of the seed crystals is enhanced. The efficiency of a treatment chamber with aftertreatment is higher than the efficiency of the treatment chamber alone.Type: GrantFiled: August 11, 2000Date of Patent: January 15, 2002Assignee: Hans Sasserath & Co., KGInventor: Willi Hecking
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Patent number: 6338790Abstract: A sensor utilizing a non-leachable or diffusible redox mediator is described. The sensor includes a sample chamber to hold a sample in electrolytic contact with a working electrode, and in at least some instances, the sensor also contains a non-leachable or a diffusible second electron transfer agent. The sensor and/or the methods used produce a sensor signal in response to the analyte that can be distinguished from a background signal caused by the mediator. The invention can be used to determine the concentration of a biomolecule, such as glucose or lactate, in a biological fluid, such as blood or serum, using techniques such as coulometry, amperometry, and potentiometry. An enzyme capable of catalyzing the electrooxidation or electroreduction of the biomolecule is typically provided as a second electron transfer agent.Type: GrantFiled: April 21, 1999Date of Patent: January 15, 2002Assignee: TheraSense, Inc.Inventors: Benjamin J. Feldman, Adam Heller, Ephraim Heller, Fei Mao, Joseph A. Vivolo, Jeffrey V. Funderburk, Fredric C. Colman, Rajesh Krishnan
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Patent number: 6338791Abstract: The invention provides a high octane number gasoline pool comprises at least 2% of di-branched paraffins containing 7 carbon atoms, and a process for producing this gasoline pool by hydro-isomerizing a feed constituted by a C5 to C8 cut which comprises at least one hydro-isomerization section and at least one separation section, in which the hydro-isomerization section and at least one separation section, in which the hydro-isomerization section comprises at least one reactor.Type: GrantFiled: March 1, 2000Date of Patent: January 15, 2002Assignee: Institut Francais du PetroleInventors: Karine Ragil, Sophie Jullian, Jean-Pierre Durand, Gérard Hotier, Olivier Clause
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Patent number: 6338792Abstract: A novel liquid collector assembly has been developed for a reactor used in the sweetening of sour hydrocarbons (e.g. sour gasoline). This refinery process normally involves contacting a reaction liquid, comprising both aqueous (caustic solution) and organic (hydrocarbon) phases, with a fixed bed of oxidation catalyst. The collector assembly design, comprising a piping manifold and a plurality of dependent, vertically aligned, and perforated conduits, allows for improved separation of the reaction products into essentially pure treated hydrocarbon and spent alkaline reagent streams. If sodium hydroxide is used as caustic solution, for example, the treated hydrocarbon product will normally contain less than 1 ppm by weight of sodium.Type: GrantFiled: April 24, 2000Date of Patent: January 15, 2002Assignee: UOP LLCInventor: Luigi Laricchia
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Patent number: 6338793Abstract: A process for the hydrodesulfurization of a diesel boiling range petroleum fraction wherein the hydrodesulfurization is carried out concurrently with a fractional distillation in a distillation column reactor containing a catalyst bed. The diesel is fed above the catalyst bed and hydrogen is fed below the bed. The heat for the distillation is provided by the heat of reaction of the hydrodesulfurization.Type: GrantFiled: October 19, 2000Date of Patent: January 15, 2002Assignee: Catalytic Distillation TechnologiesInventor: Hugh M. Putman
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Patent number: 6338794Abstract: Particulate sorbent compositions comprising zinc titanate support having thereon a substantially reduced valence promotor metal selected from the group consisting of cobalt, nickel, iron, manganese, copper, molybdenum, tungsten, silver, tin and vanadium or mixtures thereof provide a system for the desulfurization of a feed stream of cracked-gasolines or diesel fuels in a desulfurization zone by a process which comprises contacting such feed streams in a desulfurization zone with a particulate sorbent composition followed by separation of the resulting low sulfur-containing steam and sulfurized sorbent and thereafter regenerating and activating the separated sorbent before recycle of same to the desulfurization zone.Type: GrantFiled: November 1, 1999Date of Patent: January 15, 2002Assignee: Phillips Petroleum CompanyInventor: Gyanesh P. Khare
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Patent number: 6338795Abstract: A second purifying apparatus 2 for furthermore purifying working solution purified by a first purifying apparatus 1 is disposed downstream of the first purifying apparatus 1. A working-solution introducing pipe 42 which is capable of diffusing and discharging the working solution from the lower end thereof is disposed in substantially the central portion of the working-solution accumulating tank 40 in which the working solution is accumulated. A filter 44 for vertically sectioning the working-solution accumulating tank 40 at an intermediate position is provided. A weir 45 is formed at an upper end of the working-solution accumulating tank 40. Moreover, a separating wall is formed along the inner wall of the weir 45. A solution gathering groove 47 is provided for the outer surface of the weir 45.Type: GrantFiled: January 12, 2000Date of Patent: January 15, 2002Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Susumu Okajima, Kazuyoshi Takei
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Patent number: 6338796Abstract: A filter for use in a fuel injection device, the filter having a bore extending along at least a part of its length and comprising a plurality of channels formed in its outer surface, the channels defining, with a housing part for the filter, passages for fuel flowing from an inlet end of the filter to an outlet end of the filter. Each of the channels is in fluid communication with an adjacent one of the channels by means of a clearance passage. The filter also comprises a plurality of radially extending recesses formed at the inlet and outlet ends of the filter, each of the radially extending recesses being in fluid communication with a channel and defining, at least in part, a plurality of inlet and outlet passages for fuel flowing into and out of the channels respectively.Type: GrantFiled: May 18, 2000Date of Patent: January 15, 2002Assignee: Delphi Technologies, Inc.Inventor: Peter Francis Bradford
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Patent number: 6338797Abstract: A two-piece filtering device for wastewater filtering systems is disclosed wherein the two-piece system is inserted into a tubular casing. The two-piece filtering system is comprised of an outer sleeve filter and an inner primary filter, the primary filter extending downwardly through an opening in the bottom portion of the sleeve filter and also having an opening formed in its end. After insertion into the tubular casing, the two-piece filtering system of the present invention forces effluent or other fluid to be treated upward through the interior of the primary filter, through slots formed in and subsequently through the sidewall of the sleeve filter. Thus, only treated effluent flows outward through the tubular casing outlet opening. The slots may be formed in both the sidewall of the primary filter and the sleeve filter. A seal may be provided between sidewall lower portion of the primary filter and may extend to the internal sidewall of the tubular casing to prevent untreated effluent therebetween.Type: GrantFiled: June 13, 2000Date of Patent: January 15, 2002Inventors: Harry L. Nurse, Jr., Theophilis B. Terry, III
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Patent number: 6338798Abstract: A method of forming a filter package includes disposing a filter and a liquid in a container with the filter immersed in the liquid and sanitizing the liquid and the filter while in the container. After sanitizing, the container may be hermetically sealed to enclose the sanitized liquid and filter. The container may be vented during sanitizing to allow vapor of the liquid to exit from the container and prevent pressure from building up in the container. The container may be either rigid or flexible.Type: GrantFiled: December 15, 2000Date of Patent: January 15, 2002Assignee: Pall CorporationInventors: Scott D. Hopkins, Daniel W. Spencer, Joseph A. Peri
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Patent number: 6338799Abstract: A method for recovering phosphate from sludge includes the processes of treating sludge drawn from a water treatment system at a sewage treatment plant in an anaerobic condition to release polyphosphate accumulated in the sludge into solution, and recovering phosphate in the solution using a seed crystal material.Type: GrantFiled: November 10, 1999Date of Patent: January 15, 2002Assignees: Mitsubishi Materials CorporationInventors: Yuichi Fukushima, Tadashi Matsumoto, Kouichi Kawabata, Katsumi Moriyama
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Patent number: 6338800Abstract: A partially soluble lanthanide compound and methods for use in removing phosphate from water. Preferably the compound is used in removing phosphate from water in swimming pools, spas, and similar structures. Alternatively, a combination of compounds having varying solubilities may be used to remove phosphate from water. Several water treatment techniques are disclosed, as well as a variety of different methods for delivery of the active ingredients. These delivery methods include use of a slurry of the active reagent in solution as well as a tablet, powder, or granulated structure. Additionally, the water treatment techniques may incorporate the use of a combination including both enzymatic compositions and compounds for phosphate removal.Type: GrantFiled: February 22, 2000Date of Patent: January 15, 2002Assignee: Natural Chemistry, Inc.Inventors: Robert Kulperger, Richard Okun, Glenn Munford
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Patent number: 6338801Abstract: A polymeric resin is disclosed in the form of beads or particles having a coating thereon which renders the resin blood compatible. The resin comprises divinylbenzene monomer which has a porosity, pore size, and surface area suitable for absorbtion of unhealthy components of blood, such as &bgr;-2-microglobulin.Type: GrantFiled: December 22, 2000Date of Patent: January 15, 2002Assignee: The Dow Chemical CompanyInventors: Robert M. Strom, Daniel J. Murray