Patents Examined by Robert R. Koehler
  • Patent number: 7094476
    Abstract: There is provided a surface treated product that moves relatively in a fluid, wherein a surface of the surface treated product has continuous dimples, each dimple having a diameter of 10 to 2500 ?m and a depth of 50 ?m or less. The surface treated product significantly reduces resistance of a fluid to an object in the fluid, and significantly improves a flow state of the fluid.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: August 22, 2006
    Assignee: Asahi Tec Corporation
    Inventors: Shiro Kawashima, Hiromi Akihori, Matuo Suzuki, Hidekatu Hirahara, Aturo Yamamoto, Katuya Kawamori
  • Patent number: 7087315
    Abstract: A method for forming a plating film, comprising the steps of: applying a plating film onto an object to be plated at a first current density for a predetermined period in a plating bath having a cathode capable of varying current and an anode and; and maintaining the object to be plated at a second current density lower than the first current density. According to the present invention, it is possible to improve solderability of a plating film for conventional lead-free solder by a simple method, which allows the productivity to further enhanced, resulting in a plating film with reduced production costs.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: August 8, 2006
    Assignees: Sharp Kabushiki Kaisha, Kobe Leadmikk Co., Ltd.
    Inventors: Yoshihiko Matsuo, Ryukichi Ikeda, Kimihiko Yoshida, Fumio Okuda
  • Patent number: 7074497
    Abstract: A coated steel sheet having a coated layer on surfaces of a steel sheet of a composition containing not less than 0.1 mass % and under 3 mass % of Al, wherein a following condition A or B is met: A: An AlN precipitate layer exists on a matrix side near an interface between said steel sheet and said coated layer B: Oxide of Al exists in said matrix right under said surfaces of said steel sheet.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: July 11, 2006
    Assignee: JFE Steel Corporation
    Inventors: Yoshitsugu Suzuki, Kazuaki Kyono
  • Patent number: 7060367
    Abstract: A blade with improved sharpness and durability is disclosed. The blade includes a base plate having an edge and a coating layer for coating the edge. The coating layer is formed of a material handling metal, and a tip of the coating layer is sharpened. It is preferred that an angle (Ba) between two tapered surfaces be between 15 to 45 degrees.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: June 13, 2006
    Assignee: Kai R&D Center Co., Ltd.
    Inventors: Katsuaki Yamada, Hiroshi Ohtsubo, Hiroyuki Tashita
  • Patent number: 7041386
    Abstract: A method of coating of steel products such as plate and sheet using an aluminum-zinc coating alloy includes modifying the coating bath with a particulate compound constituent in effective amounts to control the spangle facet size of the coated product, improve tension bend rust stain performance, and improve coated product paintability. Constituents include borides such as titanium boride and aluminum borides, carbides such as titanium carbide, andaluminides such as titanium aluminide. The method produces a coated steel product does not require temper rolling for painting.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: May 9, 2006
    Assignee: ISG Technologies Inc.
    Inventor: Erin T. McDevitt
  • Patent number: 7014923
    Abstract: A gas turbine component consists of a superalloy base material with a single crystal structure and a protective MCrAlY-coating. The MCrAlY-coating the MCrAlY has a ?/?-phase and single crystal structure, which is epitaxial with the base material.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 21, 2006
    Assignee: Alstom Technology LTD
    Inventors: Alexander Schnell, Cyrille Bezencon, Matthias Hoebel, Abdus Suttar Khan, Maxim Konter, Wilfried Kurz
  • Patent number: 7001499
    Abstract: A process for electroplating and annealing thin-films of nickel-iron alloys having from 63% to 81% iron content by weight to produce pole pieces having saturation flux density (BS) in the range from 1.9 to 2.3 T (19 to 23 kG) with acceptable magnetic anisotropy and magnetostriction and a coercivity (HC) no higher than 160 A/m (2 Oe). The desired alloy layer properties, including small crystal size and minimal impurity inclusions, can be produced by including higher relative levels of Fe++ ions in the electroplating bath while holding the bath at a lower temperature while plating from a suitable seed layer. The resulting alloy layer adopts a small crystal size (BCC) without significant inclusion of impurities, which advantageously permits annealing to an acceptable HC while retaining the high BS desired.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: February 21, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Mike Ming Yu Chen, Thomas Edward Dinan, April Hixson-Goldsmith, Murali Ramasubramanian, Neil Leslie Robertson
  • Patent number: 6994920
    Abstract: A fusion welding method is provided for fusion welding at juxtaposed interface surfaces a first member, for example made of a first metal based on at least one of Ru, Rh, Pd, and Pt, with a second member made of a second metal, for example a high temperature alloy based on at least one of Fe, Co, and Ni, including at least one identified element, for example Al, that can form a continuous layer of a brittle intermetallic compound with the first metal that is free of such element. With the interface surfaces disposed in contact, energy is generated at the interface surfaces in a combination of an amount and for a first time selected to be sufficient to heat the interface surfaces to a fusion welding temperature. However, the first time is less than a second time that enables formation at the fusion welding temperature of the continuous layer of the brittle intermetallic compound at the interface surfaces.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: February 7, 2006
    Assignee: General Electric Company
    Inventor: Gary Edward Trewiler
  • Patent number: 6994919
    Abstract: The invention relates to a brazing sheet product including a core sheet, on at least one side of the core sheet a clad layer of an aluminum alloy including silicon in an amount in the range of 4 to 14% by weight, and further including on at least one outersurface of the clad layer a plated layer of nickel-tin alloy, such that the clad layer and all layers exterior thereto form a metal filler for a brazing operation and have a composition with the proviso that the mol-ratio of Ni:Sn is in the range of 10:(0.5 to 9).
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: February 7, 2006
    Assignees: Corus Aluminium Walzprodukte GmbH, Corus Technology BV
    Inventors: Jacques Hubert Olga Joseph Wijenberg, Adrianus Jacobus Wittebrood, Joop Nicolaas Mooij
  • Patent number: 6991856
    Abstract: Reactive foils and their uses are provided as localized heat sources useful, for example, in ignition, joining and propulsion. An improved reactive foil is preferably a freestanding multilayered foil structure made up of alternating layers selected from materials that will react with one another in an exothermic and self-propagating reaction. Upon reacting, this foil supplies highly localized heat energy that may be applied, for example, to joining layers, or directly to bulk materials that are to be joined. This foil heat-source allows rapid bonding to occur at room temperature in virtually any environment (e.g., air, vacuum, water, etc.). If a joining material is used, the foil reaction will supply enough heat to melt or soften the joining material, which upon cooling will form a strong bond, joining two or more bulk materials.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: January 31, 2006
    Assignee: Johns Hopkins University
    Inventors: Timothy P. Weihs, Michael Reiss, Omar Knio, Albert Joseph Swiston, Jr., David van Heerden, Todd Hufnagel
  • Patent number: 6991855
    Abstract: Reactive foils and their uses are provided as localized heat sources useful, for example, in ignition, joining and propulsion. An improved reactive foil is preferably a freestanding multilayered foil structure made up of alternating layers selected from materials that will react with one another in an exothermic and self-propagating reaction. Upon reacting, this foil supplies highly localized heat energy that may be applied, for example, to joining layers, or directly to bulk materials that are to be joined. This foil heat-source allows rapid bonding to occur at room temperature in virtually any environment (e.g., air, vacuum, water, etc.). If a joining material is used, the foil reaction will supply enough heat to melt the joining materials, which upon cooling will form a strong bond, joining two or more bulk materials.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: January 31, 2006
    Assignee: Johns Hopkins University
    Inventors: Timothy P. Weihs, Omar Knio, Michael Reiss, David van Heerden
  • Patent number: 6986950
    Abstract: The invention relates to a partition (1) or a method for producing a partition (1) for a multilayer pressed packet (3), wherein the partition (1) can be placed as a pressing sheet in the composite of a multilayer pressed packet (3) to be produced, especially between two multilayers (2). The unfavorable image transfer between the multilayers (2) that has occurred in the prior art up to now is cost-effectively prevented in that the partition (1) is implemented as a steel sheet, but not as a high-grade steel sheet, and that the steel sheet—at a temperature of essentially 180?C—possesses a tensile strength of at least Rm ? 500 Mpa and/or—at a temperature of essentially 180?C—a yield strength of at least Rp0.2 ? 470 MPa.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: January 17, 2006
    Assignee: Monika Backhaus
    Inventor: Dieter Backhaus
  • Patent number: 6986951
    Abstract: The present invention relates to a cobalt-based alloy for the coating of organs subject to erosion by liquid comprising chromium 28–32% by weight, tungsten 6–8% by weight, silicon 0.1–2% by weight, carbon 1.2–1.7% by weight, nickel 3–6% by weight, molybdenum 1–3%, cobalt the complement to 100%. The invention also relates to an application method of the alloy on organs subject to erosion by liquid, in particular vapour turbine blades, to reduce the metal erosion rate following impact with liquids.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: January 17, 2006
    Assignee: Nuovo Pignone Holdings S.p.A.
    Inventor: Massimo Giannozzi
  • Patent number: 6984453
    Abstract: An object is the provision of a peelable electrodeposited copper foil with carrier foil that stabilizes the peel strength between the carrier foil and the electrodeposited copper foil layer even when used in manufacture of the printed wiring boards that requires pressing at the temperatures of 200° C. or higher. For the purpose of achieving the object, the electrodeposited copper foil with carrier foil 1, which includes an adhesive interface layer 4 arranged on one face of the carrier foil 2 and an electrodeposited copper foil layer 3 arranged on the adhesive interface layer 4, characterized in that the adhesive interface layer 4 is composed of a metal oxide layer ML and an organic material layer OL, and the like are used.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: January 10, 2006
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Akiko Sugimoto, Junshi Yoshioka, Makoto Dobashi
  • Patent number: 6984457
    Abstract: (1) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 ?m and containing no less than 90 mass % aluminum or aluminum plus silicon. (2) A titanium material composed of a substrate of pure titanium or titanium alloy and an aluminum-containing layer formed thereon having a thickness no smaller than 1 ?m and containing no less than 90 mass % aluminum or aluminum plus silicon, with a layer of Al—Ti intermetallic compound interposed between them. (3) A titanium material as defined in (1) wherein the substrate contains 0.5-10 mass % aluminum. (4) A titanium material as defined in (1) wherein that surface of the substrate with which the aluminum-containing layer is in contact contains 20-50 atomic % nitrogen. (5) A titanium material as defined in (1) wherein a layer of aluminum nitride is formed in the interface between the substrate and the aluminum-containing layer.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: January 10, 2006
    Assignee: Kobe Steel Ltd.
    Inventors: Kenji Yamamoto, Wataru Urushihara, Takashi Yashiki
  • Patent number: 6984458
    Abstract: The present invention relates to a method for treating organs subject to erosion by liquids, in particular vapour turbine components, which contemplates laser plating with a cobalt-based alloy comprising chromium from 28 to 32% by weight; tungsten from 5 to 7% by weight; silicon from 0.1 to 2% by weight; carbon from 1.2 to 1.7% by weight; nickel from 0.5 to 3% by weight; iron from 0.01 to 1% by weight; manganese from 0.01 to 1% by weight; molybdenum from 0.2 to 1% by weight; possible impurities or other elements from 0 to 0.5% by weight and cobalt the complement to 100%.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: January 10, 2006
    Assignee: Nuovo Pignone Holding S.p.A.
    Inventor: Massimo Giannozzi
  • Patent number: 6982012
    Abstract: A method of manufacturing a high strength steel sheet containing, in mass %, C: 0.02 to 0.04%, Si: at most 0.4%, Mn: 0.5-3.0%, P: at most 0.15%, S: at most 0.03%, Al: at most 0.50%, N: at most 0.01%, and Mo: 0.01-1.0%. The method includes performing hot rough rolling either directly or after heating to a temperature of at most 1300° C., commencing hot finish rolling either directly or after reheating or holding, completing finish rolling at a temperature of at least 780° C., performing coiling after cooling to a temperature of 750° C. or below at an average cooling rate of at least 3° C./second, heating to an annealing temperature of at least 700° C. and then cooling to a temperature of 600° C. or below at an average cooling rate of at least 3° C./second, then holding in a temperature range of 450-600° C. for at least 10 seconds, and performing hot dip galvanizing after cooling.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: January 3, 2006
    Assignee: Sumitomo Metal Industries Ltd.
    Inventors: Shigeki Nomura, Hiroyuki Nakagawa, Yoshiaki Nakazawa
  • Patent number: 6982123
    Abstract: A nickel-base superalloy article, such as a gas turbine stationary flowpath shroud that has previously been in service, is repaired by applying a restoration coating to a surface of the article. The restoration coating is applied by providing a precursor mixture, wherein the precursor mixture has no more than about 15 weight percent chromium and no more than about 0.01 percent yttrium, and wherein the precursor mixture includes a higher-melting-point alloy component and a lower-melting-point alloy component. The precursor mixture is applied to the surface of the article, in a form such as a preform of the alloy components. The article with the precursor mixture applied to the surface thereof is heated to a sufficiently high temperature to melt the lower-melting-point alloy component, thereby forming the restoration coating on the surface of the article.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: January 3, 2006
    Assignee: General Electric Company
    Inventors: David Edwin Budinger, Brent Ross Tholke, Matthew Nicklus Miller, Warren Davis Grossklaus, Jr., Joshua Leigh Miller, Melvin Robert Jackson
  • Patent number: 6974636
    Abstract: A turbine engine component comprising a substrate made of a nickel-base or cobalt-base superalloy and a protective coating overlying the substrate, the coating formed by electroplating at least two platinum group metals selected from the group consisting of platinum, palladium, rhodium, ruthenium and iridium. The protective coating is typically heat treated to increase homogeneity of the coating and adherence with the substrate. The component typically further comprises a ceramic thermal barrier coating overlying the protective coating. Also disclosed are methods for forming the protective coating on the turbine engine component by electroplating the platinum group metals.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: December 13, 2005
    Assignee: General Electric Company
    Inventors: Ramgopal Darolia, Mark Daniel Gorman, Melvin Robert Jackson, Ji-Cheng Zhao
  • Patent number: 6974533
    Abstract: An improved electrode and method for manufacturing the improved electrode wherein the electrode having a fractal surface coating of platinum [which the present inventor refers to as “platinum gray”] with a increase in surface area of at least 5 times when compared to shiny platinum of the same geometry and also having improved resistance to physical stress when compared to platinum black having the same surface area. The process of electroplating the surface coating of platinum gray comprising plating at a moderate rate, i.e., at a rate that is faster than the rate necessary to produce shiny platinum and that is less than the rate necessary to produce platinum black.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: December 13, 2005
    Assignee: Second Sight Medical Products, Inc.
    Inventor: Dao Min Zhou