Patents Examined by Jason Savage
  • Patent number: 6372365
    Abstract: A resin-coated Al—Zn alloy coated steel sheet is excellent in formability, resistance to chromium dissolution, corrosion resistance, alkali resistance, and paintability, and produced by the following method. That is, a silane coupling agent having amino group, chromium ion and at least one alcohol selected from the group consisting of trihydric alcohol and dihydric alcohol having the number of carbon of 2 to 3 are compounded into an acrylic polymer resin emulsion including carboxyl group and glycidyl group, and having an acid value of 10 to 60. A pH of the resultant mixture is adjusted within a range of 7 to 9 to obtain a chromate containing resin composition. The chromate containing resin composition is applied on an Al—Zn alloy coated steel sheet as a substrate, and then dried to obtain a resin film on the substrate. A compounding amount of the silane coupling agent is within a range of 0.5 to 3.0 wt % with respect to a resin solid component of the acrylic polymer resin emulsion.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: April 16, 2002
    Assignee: Daido Steel Sheet Corp.
    Inventors: Masatoshi Ibuki, Osamu Goto, Noriaki Yoshitake, Yoshiyuki Murasawa, Shotaro Tsuda
  • Patent number: 6368468
    Abstract: A zirconia based article having a core of ZrO2 and/or partially reduced ZrO2, is characterized in that it includes, over at least part of its surface, a superficial layer integral with the article, the thickness of the superficial layer including a plurality of regions of which one external region is formed of zirconium nitride having a gold metallic appearance.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 9, 2002
    Assignee: Asulab S.A.
    Inventor: Béatrice Michel
  • Patent number: 6368483
    Abstract: An aluminum workpiece, e.g. sheet for containerstock, having an anodic oxide film whose thickness varies from location to location on the surface, whereby interference contrast effects are visible on the surface. Aluminum foil having on a surface thereof an unsealed anodic oxide film 5-1000 nm thick which provides a clean surface with fretting resistance. A method of anodizing thin aluminum foil is also described.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: April 9, 2002
    Assignee: Alcan International Limited
    Inventors: Jonathan Ball, Nigel Cleaton Davies, Rodney Charles Jones, Eric Barlow
  • Patent number: 6368727
    Abstract: A bond coat and method of forming a bond coat for a thermal barrier coating system are set forth. The bond coat is a roughened bond coat and comprises a layer possessing an uneven, undulated, and irregular surface. The layer is formed of a metal powder mixture disposed on a substrate, such as a turbine component, by high velocity oxygen fuel spraying. The metal powder mixture comprises at least one of a first powder having a first melting point and a second powder having a second melting point that is higher than the first melting point. The bond coat's uneven, undulated, and irregular surface enhances prevention of de-bonding of elements in a thermal barrier coating system.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: April 9, 2002
    Assignee: General Electric Company
    Inventors: Ann Melinda Ritter, Melvin Robert Jackson, Yuk-Chiu Lau
  • Patent number: 6361873
    Abstract: Composite constructions of this invention comprise an ordered microstructure made up of multiple structural units that can be the same or different, and that comprise at least a first structural phase and a second structural phase. The first structural phase comprises a hard material that is selected from the group consisting of cermet materials, PCD, PCBN and mixtures thereof. The second structural phase is in contact with the first phase and comprises a material that is different than that selected to form the first structural phase. Additionally, the second structural phase is in contact with at least a portion of the first structural phase. Composite constructions of this invention can also have a multi-layer structures comprising two or more layers, wherein at least one of the layers comprises a composite construction having an ordered microstructure made up of the multiple structural units described above.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: March 26, 2002
    Assignee: Smith International, Inc.
    Inventors: Zhou Yong, Sujian J. Huang, Michael A. Siracki, Chris Cawthorne, J. Albert Sue, Ghanshyam Rai, Zhigang Fang
  • Patent number: 6361878
    Abstract: A method of providing a roughened bond coat, for example in a thermal barrier coating system, comprises providing an oxidation-resistant plasma-sprayed layer onto a substrate and disposing a slurry overlayer on the oxidation-resistant plasma-sprayed layer. These steps form a roughened bond coat possessing an uneven, undulated, and irregular surface. A roughened bond coat in a thermal barrier coating system reduces de-bonding of the bond coat and a thermal barrier coating layer, which is desirable to maintain the insulation features of the thermal barrier coating system.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: March 26, 2002
    Assignee: General Electric Company
    Inventors: Ann Melinda Ritter, Melvin Robert Jackson, Curtis Alan Johnson
  • Patent number: 6358625
    Abstract: Refractory metal articles having hither than normal impurity levels of concentrations of additive species near the surface that promote chemically enhanced sintering without any adverse effect on function properties, including, among others, tantalum or niobium lead wires that form assemblies useful as electrolytic capacitor anodes and the like, as made by surface oxidation of the wire, embedding a wire end in a loose mass of the powder and sintering to producing assemblies of enhanced structural integrity and affording stable electrical characteristics of electrical devices including such assemblies.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: March 19, 2002
    Assignee: H. C. Starck, Inc.
    Inventors: Prabhat Kumar, Howard V. Goldberg, Thomas Ryan
  • Patent number: 6355363
    Abstract: A support structure is provided for holding open lumina, the support structure having a stainless steel substrate and a platinum layer forming the surface of the structure. The structure has at least one gold layer arranged between the substrate and the platinum layer. The platinum layer is preferably applied with a pulsed current with current reversal, in order to avoid or reduce brittleness occurring by absorption of hydrogen during galvanic deposition of platinum. Such a support structure (stent) substantially withstands the high mechanical stresses, particularly bending and torsional forces that occur during application, without the formation of significant tears in the platinum layer.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: March 12, 2002
    Assignee: W. C. Hereaus GmbH & Co. KG
    Inventors: Günter Herklotz, Frank Krüger, Thomas Frey, Thomas Giesel
  • Patent number: 6344280
    Abstract: A swash plate for a swash plate compressor, wherein aluminum alloy containing 12 to 60% of Si and, as required, 0.1 to 30% of Sn is sprayed onto the iron or aluminum base plate of the swash plate compressor to form a seizure-resisting and abrasion-resisting surface layer dispersed with granulated Si.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: February 5, 2002
    Assignees: Taiho Kogyo Co., Ltd., Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Syogo Muramatsu, Masanori Akiduki, Hiroaki Kayukawa, Hideki Mizutani, Manabu Sugiura, Hiroyuki Nakaima
  • Patent number: 6340534
    Abstract: A wrapped slide bearing bushing consists of a composite bushing material including a metal bearing layer, a porous support layer sintered thereon, and a PTFE-based sliding layer, forming the sliding surface of an associated sliding member, said sliding layer also filling the pores of said support layer, and including at least 60 vol % of PTFE, 15-25 volume percent of a metal filler, preferably lead, and optionally 8-12 volume percent of PVDF. To obtain a low coefficient of friction, only varying in a narrow range over a long time period, said slide bearing bushing is formed such that the sliding layer includes 1-3 volume percent of carbon fibers, said carbon fibers being oriented substantially in a preferred direction relative to said composite bushing material, while the relative movement of said bearing bushing and said associated sliding member is substantially transverse to said preferred direction.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: January 22, 2002
    Assignee: KS Gleitlager GmbH
    Inventors: Wolfgang Bickle, Werner Schubert
  • Patent number: 6338780
    Abstract: 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 metallic
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: January 15, 2002
    Assignee: Bridgestone Metalpha Corporation
    Inventors: Tadashi Takahashi, Yukio Aoike, Tatsuo Hirayama
  • Patent number: 6338982
    Abstract: A flexible sheet used in manufacture of microelectronic components is held on a frame formed from a rigid material so that the frame maintains the sheet under tension during processing and thereby stabilizes the dimensions of the sheet. The frame may be formed from a rigid, light-transmissive material such as a glass, and the bond between the frame and sheet may be made or released by light transmitted through the frame. Preferred features of the framed sheet minimize entrapment of processing liquids such as etch solutions, thereby minimizing carryover of processing solutions between steps. The frame may have contact openings which permit engagement of a metallic layer on the sheet by an electrode carrying electroplating or etching current without disturbing the main portion of the sheet where features are to be formed or treated.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: January 15, 2002
    Assignee: Tessera, Inc.
    Inventors: Masud Beroz, Thomas H. DiStefano, Matthew T. Hendrickson, David Light, John W. Smith
  • Patent number: 6338906
    Abstract: A metal-infiltrated ceramic for use in tribological applications, such as in mechanical face seals, beatings and other sliding or rubbing components, which provides excellent durability and wear characteristics. The metal-infiltrated ceramic is useful in both the “harder” and “softer” one of two relatively sliding members which is in, or may come into, contact with each other during the motion of one of the members relative to the other. The material is a porous ceramic which has been infiltrated with a metal.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: January 15, 2002
    Assignee: CoorsTek, Inc.
    Inventors: Marcus A. Ritland, William Todd Howe
  • Patent number: 6337141
    Abstract: The seizure resistance of an Al-based flame-sprayed layer formed on the swash plate of a swash-plate type comressor is increased to such a level comparable to that of a flame-sprayed bronze layer. The Al-based flame-sprayed layer of the present invention contains: from 12 to 60% of Si and granular Si particles dispersed in the matrix thereof, and at least one dispersing phase of graphite carbon, amorphous carbon and carbon, the crystallizing degree of which is between the graphite carbon and amorphous carbon, and MoS2.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: January 8, 2002
    Assignees: Taiho Kogyo Co., Ltd., Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Toyokazu Yamada, Soo-Myung Hong, Masanori Akiduki, Takashi Kokubo, Hiroaki Kayukawa, Hideki Mizutani, Manabu Sugiura, Takeshi Imanishi
  • Patent number: 6337148
    Abstract: Copper precursors useful in liquid delivery CVD for forming a copper-containing material on a substrate. The disclosed copper precursors are particularly useful for metallization of interconnections in semiconductor device structures.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: January 8, 2002
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Chongying Xu, Thomas H. Baum
  • Patent number: 6335106
    Abstract: The invention relates to an aluminium-based slide bearing material, comprising an aluminium alloy with 10-25% wt. tin, as well as copper, nikel and manganese additions. The invention seeks to provide a material with improved load-bearing capacity and formability. To this end, copper, nickel and manganese are each present at a portion of 0.2 to 2% wt., and 0.2 to 2% wt. silicon is added. Furthermore, the ratio of the percentage by weight of copper to the percentage by weight of nickel, and the ratio of the percentage by weight of manganese to the percentage by weight of silicon is between 0.6 and 1.5.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: January 1, 2002
    Assignee: KS Gleitlager GmbH
    Inventors: Thomas Steffens, Werner Schubert
  • Patent number: 6332937
    Abstract: A method of improving the oxidation and corrosion resistance of a superalloy article comprises providing a superalloy substrate having a sulphur content which is less than 0.8 ppm by weight, and depositing on the substrate a protective antioxidation coating having a sulphur content also less than 0.8 ppm by weight. A heat barrier layer may also be provided by depositing on the protective anti-oxidation coating a ceramic coating of columnar structure.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: December 25, 2001
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “Snecma”
    Inventors: Yann Jaslier, Serge Alexandre Alperine, Jacques Louis Leger
  • Patent number: 6329078
    Abstract: A ferromagnetic tunnel junction structure includes an anti-ferromagnetic layer; a first ferromagnetic layer in contact with the anti-ferromagnetic layer; a tunnel barrier layer in contact with the first ferromagnetic layer; a second ferromagnetic layer in contact with the tunnel barrier layer so that the tunnel barrier layer is sandwiched between the first and second ferromagnetic layer, the second ferromagnetic layer includes at least a high polarization layer and at least a soft magnetic layer so that the high polarization layer is positioned closer to the tunnel barrier layer than the soft magnetic layer.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: December 11, 2001
    Assignee: NEC Corporation
    Inventor: Hisanao Tsuge
  • Patent number: 6326089
    Abstract: A multi-element composite object composed from first, second, and third metal components is provided, wherein the first metal and the third metal are weld incompatible. The multi-element composite object includes a first component fabricated from a first metal. A second component, fabricated from a second metal, is brazed to the first component A third component, fabricated from a third metal, is inertia welded to the second component . The first metal may be provided as a titanium alloy, e.g. a TiNi alloy. The second metal may be provided as low-carbon mild or alloy steel. The third metal may be provided as alloy steel, e.g., 9310 nickel alloy steel. In an embodiment, the multi-element composite object is a gear assembly, with the first element of the gear assembly object being a shaft and the third element of the gear assembly being a gear member with hardened teeth surfaces. The first and second components can be mechanically keyed together via an anti-rotational element.
    Type: Grant
    Filed: March 28, 1998
    Date of Patent: December 4, 2001
    Inventor: Raymond J. Claxton
  • Patent number: 6322907
    Abstract: Composite wire comprising a core made of carbon steel the chemical composition of which consists, by weight, of: 0.15%≦C≦0.6%; 0.1%≦Si≦0.3%; 0.3%≦Mn≦1%; 0% V≦0.3%; the remainder being iron and impurities resulting from processing; and an outer layer made of stainless steel the composition of which consists, by weight, of 0.005%≦C≦0.05%; 0.005%≦N≦0.05%; 0.1%≦Si≦2%; 0.1%≦Mn≦5%; 5%≦Ni≦12%; 10%≦Cr ≦20%; 0%≦Mo≦3%; 0%≦Cu≦4%; the remainder being iron and impurities resulting from processing. The diameter of the wire is less than 1 mm and the tensile strength of the wire is in excess of 2000 MPa.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: November 27, 2001
    Assignees: Aster, Ugine-Savoie Imphy
    Inventors: Jean-Michel Hauser, Marc Francois