Group Vib Metal-base Component Patents (Class 428/663)
  • Patent number: 6858320
    Abstract: A performance of a perpendicular magnetic recording medium, such as an increase in output or a decrease in noise, is improved by providing a good orientation of a magnetic recording layer in the perpendicular magnetic recording medium and by reducing an amount of an initial growth layer in the magnetic recording layer. The perpendicular magnetic recording medium includes an under layer, a magnetic recording layer, a protective film, and a liquid lubrication layer, which are sequentially provided on a non-magnetic substrate. The under layer contains non-magnetic NiFeCr or a permalloy-based soft magnetic material.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: February 22, 2005
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Shunji Takenoiri, Yasushi Sakai
  • Patent number: 6852210
    Abstract: 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: Grant
    Filed: January 7, 2002
    Date of Patent: February 8, 2005
    Assignees: 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
  • Patent number: 6853521
    Abstract: A seed layer is formed with a Cr layer in which the direction of a crystal face in at least one crystal grain is oriented in a different direction from the direction of an equivalent crystal face in another crystal grain. Consequently, wettability of the seed layer can be markedly improved and the unidirectional exchange bias magnetic field in a pinned magnetic layer can be increased while permitting the surface of each layer on the seed layer to have good lubricity.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: February 8, 2005
    Assignee: Alps Electric Co., Ltd.
    Inventors: Naoya Hasegawa, Masamichi Saito, Kenichi Tanaka
  • Patent number: 6838189
    Abstract: Magnetic recording media exhibiting high SNR and high thermal stability are produced by sputter depositing a magnetic alloy overlying a non-magnetic substrate, e.g., on an underlayer, heating to eliminate thermally unstable small grains thereby increasing the average grain size of the magnetic alloy layer but narrowing the grain size distribution, depositing a layer comprising a non-ferromagnetic element, and then heating to diffuse the non-ferromagnetic element into the grain boundaries of the heat treated magnetic alloy layer. Embodiments include heating to diffuse the non-ferromagnetic element leaving a layer comprising the non-ferromagnetic element, at a thickness up to about 3?, on the magnetic alloy layer, with the amount of the non-ferromagnetic element diffused into the grain boundaries of the magnetic alloy layer gradually decreasing from the upper surface of the magnetic alloy layer toward the underlayer.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: January 4, 2005
    Assignee: Seagate Technology LLC
    Inventors: Jing Gui, Gary Clark Rauch
  • Patent number: 6824888
    Abstract: The present invention provides a method of producing a bonded body of a beryllium member and a copper or copper alloy member, in which the bonding strength and thermal cycle resistance property are further increased. When the beryllium member and the copper or copper alloy member are bonded to each other, a thin layer of titanium, chromium, molybdenum, or silicon is formed as a diffusion inhibition layer on the surface of the beryllium; a copper layer is formed as a bonding layer on the surface of the diffusion inhibition layer; a thin layer of aluminum or zinc is formed as a bonding promotion layer on the surface of the bonding layer; and the beryllium member and the copper or copper alloy member are diffusion bonded to each other with the intermediate layer formation side being the bonding surface.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: November 30, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Toshihisa Hatano, Takaharu Iwadachi, Minoru Uda
  • Patent number: 6780496
    Abstract: A new capping multilayer structure for EUV-reflective Mo/Si multilayers consists of two layers: A top layer that protects the multilayer structure from the environment and a bottom layer that acts as a diffusion barrier between the top layer and the structure beneath. One embodiment combines a first layer of Ru with a second layer of B4C. Another embodiment combines a first layer of Ru with a second layer of Mo. These embodiments have the additional advantage that the reflectivity is also enhanced. Ru has the best oxidation resistance of all materials investigated so far. B4C is an excellent barrier against silicide formation while the silicide layer formed at the Si boundary is well controlled.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: August 24, 2004
    Assignee: EUV LLC
    Inventors: Sasa Bajt, James A. Folta, Eberhard A. Spiller
  • Patent number: 6777374
    Abstract: Organic molecules are partially oxidized in that the gas phase on supported and immobilized photocatalysts deposited having a nanostructure. the photocatalysts are semiconductors such as titanium dioxide and are preferentially coated onto a substrate by flame aerosol coating.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: August 17, 2004
    Assignee: The United States of America as represented by the Environmental Protection Agency
    Inventors: Endalkachew Sahle-Demessie, Pratim Biswas, Michale A. Gonzalez, Zhong-Min Wang, Subhas K. Sikdar
  • Patent number: 6770384
    Abstract: An article is coated with a multi-layer decorative and protective coating having the appearance of stainless steel. The coating comprises a polymer basecoat layer on the surface of said article and vapor deposited at relatively low pressure on the polymer layer a protective and decorative color layer comprised of the reaction products of refractory metal or refractory metal alloy, nitrogen and oxygen wherein the nitrogen and oxygen content of the reaction products are each from about 4 to about 32 atomic percent with the nitrogen content being at least about 3 atomic percent.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 3, 2004
    Assignee: Vapor Technologies, Inc.
    Inventor: Guocun Chen
  • Patent number: 6764775
    Abstract: An article is coated with a multi-layer decorative and protective coating having the appearance of stainless steel. The coating comprises a polymeric basecoat layer on the surface of said article and vapor deposited on the polymeric basecoat layer a stack layer containing layers of refractory metal or refractory metal alloy alternating with layers containing the reaction products of refractory metal or refractory metal alloy, nitrogen and oxygen. Over the stack layer is vapor deposited at relatively low pressures a protective color layer comprised of the reaction products of refractory metal or refractory metal alloy, oxygen and nitrogen wherein the total nitrogen and oxygen content of these reaction products is from about 4 to about 32 atomic percent, with the nitrogen content being at least about 3 atomic percent.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: July 20, 2004
    Assignee: Vapor Technologies, Inc.
    Inventor: Guocun Chen
  • Patent number: 6759141
    Abstract: The invention uses iridium and iridium compounds as a protective capping layer on multilayers having reflectivity in the deep ultra-violet to soft x-ray regime. The iridium compounds can be formed in one of two ways: by direct deposition of the iridium compound from a prepared target or by depositing a thin layer (e.g., 5-50 angstroms) of iridium directly onto an element. The deposition energy of the incoming iridium is sufficient to activate the formation of the desired iridium compound. The compounds of most interest are iridium silicide (IrSix) and iridium molybdenide (IrMox).
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: July 6, 2004
    Assignee: The Regents of the University of California
    Inventor: Shon T. Prisbrey
  • Patent number: 6759143
    Abstract: A tantalum or tungsten target-backing plate assembly which comprises a tantalum or tungsten target and a copper alloy backing plate that are subject to diffusion bonding via an aluminum- or aluminum alloy-sheet insert material at least 0.5 mm thick, and which is provided with diffusion bonded interfaces between the respective materials, wherein the assembly suffers only a small deformation after diffusion bonding and is free from separation between the target and the backing plate or from cracking even when the target material and the backing plate differ greatly in thermal expansion, and can survive high power sputtering; and a production method therefor.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: July 6, 2004
    Assignee: Nikko Materials Company, Limited
    Inventors: Kunihiro Oda, Takeo Okabe, Hirohito Miyashita
  • Publication number: 20040126613
    Abstract: A turbine component comprises a substrate; and a crystalline coating disposed on a surface of the substrate, wherein the crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating. A method of making a turbine component comprises disposing a coating composition on a substrate, wherein the coating composition comprises tin and yttrium in an amount greater than or equal to about 0.1 atomic percent based upon the total coating composition. A crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 1, 2004
    Inventors: Bernard Bewlay, Melvin Jackson, Ji-Cheng Zhao
  • Patent number: 6720089
    Abstract: Titanium architectural panels (20) are provided which have recrystallized surface portions on at least the outer surface (22) thereof to give a decorative appearance to the panels (20). Surface recrystallization is obtained by subjecting the panels (20) to multiple oven heating steps (H1, H2) with intermediate cooling steps (C1, C2), wherein during each heating step (H1, H2) maximum temperature ranges (TH1, TH2) are established and maintained for predetermined periods. The intermediate cooling steps (C1, C2) involve injection of an inert cooling gas (e.g., argon) into the oven to rapidly lower the temperature to minimum temperature ranges (TL1, TL2). Preferably, the individual panels (20) are framed using molybdenum frame assembly (42), and are then suspended on a graphite and molybdenum hanger assembly (72).
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: April 13, 2004
    Assignee: Architectural Titanium LLC
    Inventor: Gary Nemchock
  • Publication number: 20040043241
    Abstract: A porous molybdenum disilicide-based material prepared by preheating a preform consisting of size-controlled molybdenum (Mo) powder and content-controlled silicon (Si) powder and igniting the preform to initiate self-propagating high temperature synthesis, and a method for preparing the same, are disclosed. The method comprises the steps of a) mixing molybdenum (Mo) powder and silicon (Si) powder in the stoichiometric ratio of 1:2; b) molding the mixed powder into a preform; c) preheating the preform under inert atmosphere; and d) igniting the top end of the preheated perform. The porous molybdenum disilicide-based material can control its pore size by appropriately controlling the size of molybdenum (Mo) powder, the content of silicon (Si) powder and preheating condition. Therefore, since the pore size gradient of the porous material is possible to form, the porous material can be used for filters with improved dirt-holding capacity.
    Type: Application
    Filed: October 9, 2002
    Publication date: March 4, 2004
    Applicant: Korea Institute of Machinery and Materials
    Inventors: In-Hyuck Song, Hai-Doo Kim, Jung-Yeul Yun
  • Patent number: 6699588
    Abstract: Sputter-deposited amorphous NiNb films on glass or glass-ceramic substrates have good adhesion with the substrates, and reduce lithium migration significantly. Longitudinal magnetic recording media deposited on oxidized NiNb sealing layers have very good magnetic recording performances and are suitable for high density recording application.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: March 2, 2004
    Assignee: Seagate Technology, Inc.
    Inventors: Qixu (David) Chen, Liji Huang, Charles Leu, Rajiv Yadav Ranjan
  • Patent number: 6692833
    Abstract: The present invention is directed to a process for depositing at least one layer (3) based on tungsten and/or on molybdenum by chemical vapor deposition on a non-conductive substrate (1), such as glass, ceramic, glass-ceramic, or polymer, which includes providing at least one tungsten- and/or molybdenum-containing precursor in the form of a metal halide and/or of an organometallic compound, and at least one reducing agent, such as hydrogen or silane, to form the at least one metal layer. The present invention also relates to the substrate obtained by the preceding process and its applications, especially for producing a glazing, mirrors, or emissive screens.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: February 17, 2004
    Assignee: Saint-Gobain Vitrage
    Inventor: Georges Zagdoun
  • Patent number: 6682826
    Abstract: The present invention provides a magnetic recording medium having excellent magnetic read/write characteristics and thermal stability, a method of manufacturing therefor, and a magnetic read/write apparatus. The magnetic recording medium comprises a soft magnetic undercoat film, an orientation control film, a perpendicular magnetization film, and a protective film, that are formed on a non-magnetic substrate, wherein the orientation control film has an hcp structure and, at the same time, &Dgr;&thgr;50 of the (0002) orientation plane is set within a range from 3 to 10 degrees and a difference (&Dgr;&thgr;50 (mag)−&Dgr;&thgr;50 (ori)) between &Dgr;&thgr;50 (ori) of the orientation control film and &Dgr;&thgr;50 (mag) of the perpendicular magnetization film is set within a range from 1 to 8 degrees.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 27, 2004
    Assignees: Showa Denko K.K., Toshiba Corporation
    Inventors: Kenji Shimizu, Akira Sakawaki, Hiro Mochizuki, Hiroshi Sakai, Soichi Oikawa, Takashi Hikosaka
  • Publication number: 20040013899
    Abstract: The target for the transparent conductive thin film having indium oxide as its major component and containing tungsten and/or molybdenum, obtained by forming a body of indium oxide powder, and tungsten oxide power and/or molybdenum oxide powder and then heating or sintering the formed body such that the thin film after sputtering has indium oxide as the main component and contains tungsten and/or molybdenum with an atomic ratio (W+Mo)/In of 0.0040 to 0.0470, whereby a transparent conductive thin film having excellent surface smoothness and low specific resistance of 6.0×10−4 &OHgr;·cm or less, and whose surface smoothness and specific resistance properties do not change even when heated at 170° C. is provided.
    Type: Application
    Filed: May 27, 2003
    Publication date: January 22, 2004
    Inventor: Yoshiyuki Abe
  • Patent number: 6663986
    Abstract: A magneto-resistive (MR) stripe element includes a magnetically active body portion and a tri-layer electrical conductor structure arranged proximate the magnetically active body portion. The conductor structure has an alpha-Ta bi-layer film and a chromium capping layer. The alpha-Ta bi-layer film includes a chromium base layer and a tantalum layer. The capping layer caps the alpha-Ta bi-layer film such that the tantalum layer is disposed between the chromium base layer and the chromium capping layer. The tri-layer conductor structure has minimized compressive stress after deposition of the three layers and an even lower compressive stress after annealing. The thickness of the chromium capping layer is dependent at least upon the thickness of the chromium base layer such that the tri-layer conductor has a minimized compressive stress after deposition and annealing. The MR stripe element may be incorporated in a magnetic read head for reading data from a magnetic storage medium.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: December 16, 2003
    Assignee: Storage Technology Corporation
    Inventor: Steven Castle Sanders
  • Patent number: 6660413
    Abstract: A component of a recording device comprising a magnetic layer, means for improving corrosion resistance of the magnetic layer and a carbon overcoat, and a method of making and using the same are disclosed. The means for improving corrosion resistance of the magnetic layer comprises a sealing layer comprising a refractory metal or a refractory metal-containing alloy.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 9, 2003
    Assignee: Seagate Technology LLC
    Inventors: Raj Thangaraj, Kueir-Weei Chour, Xiaoding Ma, Huan Tang, Jing Gui
  • Patent number: 6660375
    Abstract: A thin-film magnet formed from a gas-phase reaction of tetracyanoetheylene (TCNE) OR (TCNQ), 7,7,8,8-tetracyano-P-quinodimethane, and a vanadium-containing compound such as vanadium hexcarbonyl (V(CO)6) and bis(benzene)vanalium (V(C6H6)2) and a process of forming a magnetic thin film upon at least one substrate by chemical vapor deposition (CVD) at a process temperature not exceeding approximately 90° C. and in the absence of a solvent. The magnetic thin film is particularly suitable for being disposed upon rigid or flexible substrates at temperatures in the range of 40° C. and 70° C. The present invention exhibits air-stable characteristics and qualities and is particularly suitable for providing being disposed upon a wide variety of substrates.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: December 9, 2003
    Assignee: University of Utah Research Foundation
    Inventors: Joel S. Miller, Kostyantyn I. Pokhodnya
  • Publication number: 20030219622
    Abstract: Electrical connectors incorporate a composite coating of molybdenum disulfide and a metal, preferably tin, for one or both of the contact surfaces of the electrical connector. The coating provides for a low coefficient of friction, low contact resistance, and good electrical conductivity, as well as good mechanical properties. The coating also reduces the insertion force of the electrical connectors, thereby increasing the number of possible terminal pairs and/or reducing terminal bending and breakage for a manually mated connector. The coating can be deposited on copper, tin-plated copper, tin alloy-plated copper or other metallic substrates, using any of several physical vapor deposition methods.
    Type: Application
    Filed: April 22, 2003
    Publication date: November 27, 2003
    Inventor: Daniel A. Niebauer
  • Patent number: 6630248
    Abstract: A spin valve structure is described that has greater pinned layer robustness than is found in spin valves of the existing known art, making it well suited for use in high density recording. This has been achieved by a using a modified pinned layer that is a laminate of five layers—a first layer of cobalt-iron, a layer of ruthenium, a second layer of cobalt-iron, a layer of nickel-chromium, and a third layer of cobalt-iron. The second layer of cobalt-iron should be about twice the thickness of the third cobalt-iron layer. The sum of the second and third cobalt-iron layer thicknesses may be greater or smaller than the thickness of the first cobalt-iron layer. A process for manufacturing the structure is also described.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: October 7, 2003
    Assignee: Headway Technologies, Inc.
    Inventors: Cheng T. Horng, Min Li, Ru-Ying Tong, Simon H. Liao, Kochan Ju
  • Publication number: 20030186074
    Abstract: This specification discloses a metal electrode that uses MoW (molybdenum-tungsten) alloy as its barrier layers and the method for making the same. Using MoW alloy as the barrier layer of a metal electrode can effectively solve the spiking and hillock problems occurred in aluminum electrodes. The MoW alloy barrier layer is thermally stable, preventing the resistance from rising due to the high-temperature manufacturing process. The metal electrode using the MoW alloy as the barrier layer can be prepared using the dry etching process. The resulting resistance is lower than other kinds of barrier layers. The MoW alloy barrier layer can be used in TFT metal electrodes for high-resolution and large-area displays.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 2, 2003
    Inventors: Chi-Lin Chen, Chich-Shang Chang
  • Patent number: 6627304
    Abstract: The invention relates to an absorbent thin-film system made up of alternate metal and dielectric layers. With this system, color-neutral absorption results in the visual spectral region are obtained, as are a defined phase shift and a defined transmission. This film system is used for contrasting methods or contrasting systems in microscopy.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 30, 2003
    Assignee: Leica Microsystems Wetzlar GmbH
    Inventor: Frank Eisenkrämer
  • Patent number: 6607847
    Abstract: An article, such as an airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first molybdenum-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece comprises a first metallic element and a second metallic element, wherein the first metallic element is one of titanium, palladium, zirconium, niobium, and hafnium, and wherein the second metallic element is one of titanium, palladium, zirconium, niobium, hafnium, aluminum, chromium, vanadium, platinum, gold, iron, nickel, and cobalt, the first metallic element being different from the second metallic element.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: August 19, 2003
    Assignee: General Electric Company
    Inventors: Ji-Cheng Zhao, Melvin Robert Jackson, Bernard Patrick Bewlay
  • Patent number: 6593009
    Abstract: A thin film magnetic media structure comprising a pre-seed layer CrTi is disclosed. The CrTi pre-seed layer presents an amorphous or nanocrystalline structure. The preferred seed layer is RuAl. The use of the CrTi/RuAl bilayer structure provides superior adhesion to the substrate and resistance to scratching, as well as, excellent coercivity and signal-to-noise ratio (SNR) and reduced cost over the prior art.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: July 15, 2003
    Assignee: Hitachi Global Storage Technologies Netherlands N.V.
    Inventors: Xiaoping Bian, Mary Frances Doerner, Mohammad Taghi Mirzamaani, Tim Minvielle, Kai Tang
  • Patent number: 6586118
    Abstract: An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece is a semi-solid braze that comprises a first component and a second component.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: July 1, 2003
    Assignee: General Electric Company
    Inventors: Melvin Robert Jackson, Bernard Patrick Bewlay, Ji-Cheng Zhao
  • Patent number: 6586114
    Abstract: An article, particularly a metallic article, is coated with a multi-layer coating having the color or appearance of dark copper. The coating comprises a chromium, refractory metal or refractory metal alloy adhesion promoting layer, a titanium-zirconium alloy nitride or titanium-zirconium alloy carbonitride protective and color layer, and a titanium-zirconium alloy oxide or titanium-zirconium oxynitride color enhancing layer.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 1, 2003
    Assignee: Vapor Technologies, Inc.
    Inventor: Bryce Randolph Anton
  • Patent number: 6565989
    Abstract: An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first molybdenum-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece comprises one of germanium and silicon, and one of chromium, titanium, gold, aluminum, palladium, platinum, and nickel. This abstract is submitted in compliance with 37 C.F.R. 1.72(b) with the understanding that it will not be used to interpret or limit the scope of or meaning of the claims.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 20, 2003
    Assignee: General Electric Company
    Inventors: Ji-Cheng Zhao, Melvin Robert Jackson, Bernard Patrick Bewlay
  • Patent number: 6565990
    Abstract: An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined at a bonded region to the first piece by a diffusion bond. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first molybdenum-based refractory metal intermetallic composite. The second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The diffusion bond is formed from a first metallic element disposed on a first surface of the first piece and a second metallic element disposed on at least one of the first surface and a second surface of the second piece, the second surface contacting the first surface, wherein the first and second metal form a composition having a melting temperature less than about 1400° C. This abstract is submitted in compliance with 37 C.F.R. 1.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: May 20, 2003
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Melvin Robert Jackson, Ji-Cheng Zhao
  • Patent number: 6562480
    Abstract: A wear resistant coating for protecting surfaces undergoing sliding contact is disclosed. The wear resistant coating is applied by high velocity oxygen-fuel (HVOF) deposition of a powdered blend of the coating constituents. The powdered blend includes a nickel-chromium alloy, chromium carbide, and molybdenum. The disclosed coating should find use as a bearing surface on piston rings, cylinder liners, and other components of a power cylinder assembly of an internal combustion engine.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: May 13, 2003
    Assignee: Dana Corporation
    Inventors: Thomas C. Stong, Peter J. Einberger, Thomas J. Smith
  • Patent number: 6558816
    Abstract: An article is coated with a multi-layer decorative and protective coating having the appearance of stainless steel. The coating comprises a polymeric layer on the surface of said article and vapor deposited on the polymeric layer a stack layer containing layers of refractory metal or metal alloy alternating with layers containing the reaction products of refractory metal or refractory metal alloy, nitrogen and oxygen wherein the total nitrogen and oxygen content of these reaction products is from about 4 to about 32 atomic percent, with the nitrogen content being at least about 3 atomic percent.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: May 6, 2003
    Assignee: Vapor Technologies, Inc.
    Inventor: Guocun Chen
  • Patent number: 6551722
    Abstract: An article is coated with a multi-layer coating having a stainless steel color. The coating comprises an electroplated layer or layers on the article surface, a refractory metal or refractory metal alloy strike layer on the electroplated layer or layers, a color layer containing a refractory metal oxide or refractory metal alloy oxide having a substoichiometric oxygen content on the strike layer, and a refractory metal oxide or refractory metal alloy oxide having a substantially stoichiometric oxygen content layer on said color layer.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: April 22, 2003
    Assignee: Masco Corporation of Indiana
    Inventors: Patrick B. Jonte, James S. Lipe, Guocun Chen
  • Patent number: 6548192
    Abstract: An article is coated with a multi-layer decorative and protective coating having the appearance of stainless steel. The coating comprises one or more electroplated layers on the surface of said article and vapor deposited on the electroplated layers a stack layer containing layers of refractory metal or metal alloy alternating with layers containing the reaction products of refractory metal or refractory metal alloy, nitrogen and oxygen wherein the total nitrogen and oxygen content of these reaction products is from about 4 to about 32 atomic percent with the nitrogen content being at least about 3 atomic percent.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: April 15, 2003
    Assignee: Vapor Technologies, Inc.
    Inventor: Guocun Chen
  • Publication number: 20030054194
    Abstract: An environmentally resistant coating comprising silicon, titanium, chromium, and a balance of niobium and molybdenum for turbine components formed from molybdenum silicide-based composites. The turbine component may further include a thermal barrier coating disposed upon an outer surface of the environmentally resistant coating comprising zirconia, stabilized zirconia, zircon, mullite, and combinations thereof. The molybdenum silicide-based composite turbine component coated with the environmentally resistant coating and thermal barrier coating is resistant to oxidation at temperatures in the range from about 2000° F. to about 2600° F. and to pesting at temperatures in the range from about 1000° F. to about 1800° F.
    Type: Application
    Filed: September 24, 2002
    Publication date: March 20, 2003
    Inventors: Ji-Cheng Zhao, Bernard Patrick Bewlay, Melvin Robert Jackson
  • Patent number: 6534196
    Abstract: The present invention relates to articles, having an extended useful life, which are used in contact with high temperature molten aluminum or molten zinc baths. One aspect of the invention encompasses articles, such as bearings, bushings, couplings or rollers, used in contact with molten aluminum or molten zinc which is coated with a high density coating consisting of a metal selected from Groups Vb, VIb, or VIIb metals (preferably molybdenum or tungsten), in pure or alloyed form. These coatings generally have a thickness of from about 0.06 to about 0.30 inch. Another aspect of the present invention encompasses a roll for guiding steel strip through a high temperature aluminizing bath, which utilizes a multi-layer structure, the first primer layer being a Group Vb, VIb or VIIb metal, preferably tungsten or molybdenum (in pure or alloyed form), the second layer comprising MCrAlY in which M is either nickel or cobalt, and the third layer comprising a refractory metal oxide of Al, Zr, Si or Cr.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: March 18, 2003
    Assignee: Cincinnati Thermal Spray
    Inventor: Robert K. Betts
  • Patent number: 6531226
    Abstract: A multilayer brazeable metallization structure for diamond components is described. The brazeable metallization finds particular application for the attachment of diamond components such as heat spreaders in electronic packages that incorporate high power semiconductor devices. In the present invention, a diamond component is provided with a multilayer coating of metals including a first layer of chromium for adhesion, a second barrier layer of a refractory metal for a barrier that may be alloyed with chromium, and a top layer of copper, silver or gold for wetting. The refractory metals for the second layer include tungsten, molybdenum, tantalum and niobium. Tungsten or tungsten-chromium alloy is preferred as the second layer. This multilayer metallization structure provides a robust interface between diamond and standard brazing alloys which are used to join the diamond to electrical leads or a flange made of metals such as copper-tungsten.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: March 11, 2003
    Assignee: Morgan Chemical Products, Inc.
    Inventor: Ronald R. Petkie
  • Patent number: 6503641
    Abstract: An electrical conductor for use in an electronic structure is disclosed which includes a conductor body that is formed of an alloy including between about 0.001 atomic % and about 2 atomic % of an element selected from the group consisting of Ti, Zr, In, Sn and Hf; and a liner abutting the conductor body which is formed of an alloy that includes Ta, W, Ti, Nb and V. The invention further discloses a liner for use in a semiconductor interconnect that is formed of a material selected from the group consisting of Ti, Hf, In, Sn, Zr and alloys thereof, TiCu3, Ta1−XTix, Ta1−X, Hfx, Ta1−X, Inxy, Ta1−XSnx, Ta1−XZrx.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: January 7, 2003
    Assignee: International Business Machines Corporation
    Inventors: Cyril Cabral, Jr., Roy Arthur Carruthers, James McKell Edwin Harper, Chao-Kun Hu, Kim Yang Lee, Ismail Cevdet Noyan, Robert Rosenberg, Thomas McCarroll Shaw
  • Patent number: 6497968
    Abstract: An environmentally resistant coating comprising silicon, titanium, chromium, and a balance of niobium and molybdenum for turbine components formed from molybdenum silicide-based composites. The turbine component may further include a thermal barrier coating disposed upon an outer surface of the environmentally resistant coating comprising zirconia, stabilized zirconia, zircon, mullite, and combinations thereof. The molybdenum silicide-based composite turbine component coated with the environmentally resistant coating and thermal barrier coating is resistant to oxidation at temperatures in the range from about 2000° F. to about 2600° F. and to pesting at temperatures in the range from about 1000° F. to about 1800° F.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: December 24, 2002
    Assignee: General Electric Company
    Inventors: Ji-Cheng Zhao, Bernard Patrick Bewlay, Melvin Robert Jackson
  • Patent number: 6492037
    Abstract: A friction welded joint structure includes friction welded dissimilar first and second metallic materials. The first metallic material has a rigidity greater than the second metallic material. The angle of the first metallic material to a free edge of the first metallic material, at an end portion of a joined surface between the first and second metallic materials, is greater than or equal to 120 degrees or in the range of from 55 degrees to 85 degrees. A reaction layer between the first and second metallic materials is more than zero and less than or equal to 20 &mgr;m. The first metallic material is copper. The second, which has the smaller rigidity, is aluminum.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: December 10, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takahiko Shindo, Yoshiyasu Itoh, Katsumi Suzuki
  • Patent number: 6488862
    Abstract: Copper can be pattern etched at acceptable rates and with selectivity over adjacent materials using an etch process which utilizes a solely physical process which we have termed “enhanced physical bombardment”. Enhanced physical bombardment requires an increase in ion density and/or an increase in ion energy of ionized species which strike the substrate surface. To assist in the removal of excited copper atoms from the surface being etched, the power to the ion generation source and/or the substrate offset bias source may be pulsed. In addition, when the bombarding ions are supplied from a remote source, the supply of these ions may be pulsed. Further, thermal phoresis may be used by maintaining a substrate temperature which is higher than the temperature of a surface in the etch chamber.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: December 3, 2002
    Assignee: Applied Materials Inc.
    Inventors: Yan Ye, Diana Xiaobing Ma, Gerald Yin
  • Publication number: 20020119340
    Abstract: An environmentally resistant coating comprising silicon, titanium, chromium, and a balance of niobium and molybdenum for turbine components formed from molybdenum silicide-based composites. The turbine component may further include a thermal barrier coating disposed upon an outer surface of the environmentally resistant coating comprising zirconia, stabilized zirconia, zircon, mullite, and combinations thereof. The molybdenum silicide-based composite turbine component coated with the environmentally resistant coating and thermal barrier coating is resistant to oxidation at temperatures in the range from about 2000° F. to about 2600° F. and to pesting at temperatures in the range from about 1000° F. to about 1800° F.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 29, 2002
    Applicant: General Electric Company
    Inventors: Ji-Cheng Zhao, Bernard Patrick Bewlay, Melvin Robert Jackson
  • Patent number: 6420053
    Abstract: An article includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that a planar surface of the coating exhibits a visual first color when viewed from a first angle to the surface and a visual second and different color when viewed at a second angle to the surface. The electrode position is carried out from a bath which comprises ions selected from the group consisting of molybdenum(VI)-containing ions and (Ni(II)−+Zn(II))− containing ions, wherein the parameters ionic concentration, pH, bath temperature current density and current quantity are so selected that a bi-colored coating is obtained, provided that a current density is applied to the underplate as cathode within the range of 0.005 to 0.5 A/dm2.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 16, 2002
    Assignee: Nickel Rainbow Ltd.
    Inventor: Leonid Levinson
  • Patent number: 6391473
    Abstract: A Cu plated ceramic substrate is used in a semiconductor. On a ceramic substrate layer, a thin-film Cr layer is put, and a thin-firm Au layer is put on the Cr layer. The Au layer is plated with Cu. By providing the Au and Cr layers between the ceramic plate and Cu layer, adhesibility is increased. A Pertier element which includes the Cu plated ceramic layer is employed in a semiconductor to absorb and generate heat efficiently.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: May 21, 2002
    Assignee: Yamatoya & Co., Ltd.
    Inventors: Iwao Numakura, Noriaki Tsukada
  • Patent number: 6376103
    Abstract: A molybdenum-based composite powder for thermal spray applications. The composite powder includes a molybdenum-chromium, molybdenum-tungsten, or molybdenum-tungsten-chromium alloy dispersion strengthened with molybdenum carbide (Mo2C). The molybdenum-based composite powder may be combined with a nickel-based or cobalt-based alloy to form a two-phase powder blend. The coatings from such powders are made up of molybdenum-based alloy lamellae and, in the two-phase embodiments, nickel-based or cobalt-based alloy lamellae. The coatings exhibit improved corrosion resistance and strength while retaining good sprayability.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: April 23, 2002
    Assignee: Osram Sylvania Inc.
    Inventors: Sanjay Sampath, Jack E. Vanderpool
  • Patent number: 6361581
    Abstract: A protective coat formed by thermal spraying, and having an outstanding durability against corrosion by a molten light alloy. A thermal spraying composite material used to form such a coat contains from about 30 to about 70% by weight of molybdenum boride, from about 20 to about 40% by weight of nickel or cobalt, from about 5 to about 20% by weight of chromium, and from about 5 to about 10% by weight of at least one metal boride selected from the borides of Cr, W, Zr, Ni and Nb.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: March 26, 2002
    Assignees: Chubu Sukegawa Enterprise Co., LTD, Showa Denko K.K.
    Inventors: Tsujihiko Yasuda, Akiyoshi Banno, Tamio Ito, Koji Kiyoshi, Kunimoto Ishibayashi
  • Patent number: 6355362
    Abstract: Electronics packages having a primary metallic material, such as a titanium metallic material, metallurgically bonded to one or more secondary regions within the primary metallic material, the composite regions having desirable thermal conductivity properties and having a coefficient of thermal expansion (“CTE”) that generally matches the CTE of the primary metallic material are provided. Electronics packages comprising titanium having heat sinks comprising a metal matrix material such as aluminum silicon carbide or a composite metallic structure such as titanium aluminide/copper, are described. Methods for manufacturing electronics packages having a composite structure are also disclosed.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: March 12, 2002
    Assignee: Pacific Aerospace & Electronics, Inc.
    Inventors: Herman L. Jones, Edward A. Taylor
  • Patent number: 6337146
    Abstract: A hydrogen storage laminated material can be obtained which is capable of achieving reduction in weight as well as being mass-produced industrially while assuring excellent hydrogen storage capability. The hydrogen storage laminated material (10) has a laminated structure of a first layer (6a) and a second layer (7a), wherein the first layer is formed from an alloy or compound including an element of a group 2A or 3A or an element of at least one of the groups 2A and 3A, and at least partially includes a bcc structure, and the second layer is formed from an alloy or compound including an element of one of groups 6A, 7A and 8A or an element of at least one of the groups 6A, 7A and 8A.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: January 8, 2002
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kouichi Sogabe, Shousaku Yamanaka, Yoshinobu Takeda, Nozomu Kawabe, Hideo Itozaki, Akira Nakayama, Takashi Uemura
  • Patent number: 6326685
    Abstract: A reduced CTE composite structure is made by providing a matrix material whose CTE is to be reduced, adding negative CTE bodies to the matrix material and mechanically coupling the matrix material to the negative CTE bodies as by deforming the composite structure. A preferred application is to make an improved composite material for use as a heat sink for semiconductor substrates with a minimum of thermal expansion mismatch.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: December 4, 2001
    Assignee: Agere Systems Guardian Corp.
    Inventors: Sungho Jin, Hareesh Mavoori