Cr-base Component Patents (Class 428/666)
-
Patent number: 6838189Abstract: 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: GrantFiled: March 24, 2003Date of Patent: January 4, 2005Assignee: Seagate Technology LLCInventors: Jing Gui, Gary Clark Rauch
-
Publication number: 20040247906Abstract: An optical thin film stack for a dark aperture is deposited using thermal ion-assisted deposition (“IAD”). The IAD provides an energetic deposition of chromium and chromium oxide that results in a dark mirror optical thin film stack with superior etch properties. Edge definition is improved, and the edge profile is controllable by the selection of IAD parameters. An in situ IAD cleaning process can be used to clean the substrate sufficiently so that an intermediate adhesion layer of chromium is not required.Type: ApplicationFiled: May 24, 2002Publication date: December 9, 2004Applicant: Optical Coating Laboratory, Inc., a JDS Uniphase CompanyInventor: Paul J. Gasloli
-
Patent number: 6803133Abstract: An article is coated with a multi-layer coating having a bronze color. The coating comprises a polymeric basecoat layer, and a color and protective stack layer comprised of layers of carbon-rich refractory metal or refractory metal alloy carbonitride alternating with layers of nitrogen-rich refractory metal or refractory metal alloy carbonitride.Type: GrantFiled: November 27, 2002Date of Patent: October 12, 2004Assignee: Vapor Technologies, Inc.Inventor: Guocun Chen
-
Patent number: 6787248Abstract: This invention relates to a structure on a bi-color rust-proof barrier layer of a tool head, mainly used to form a surrounding recessed section marked with indication of a size, a model, a trademark and the like on a surface of a tool head (a metallic object) so that the structure on the rust-proof barrier layer painted with the different two colors is provided between the recessed section and the peripheral surface, thereby highlighting the indication marked at the recessed section so as to increase the distinctions of said object from other object.Type: GrantFiled: November 5, 2003Date of Patent: September 7, 2004Inventor: Wen-chih Liu
-
Patent number: 6770384Abstract: 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: GrantFiled: December 19, 2001Date of Patent: August 3, 2004Assignee: Vapor Technologies, Inc.Inventor: Guocun Chen
-
Patent number: 6767651Abstract: In a magnetic recording medium, a plurality of non-magnetic metallic intermediate layers is laminated between an under-layer and a magnetic layer. One of the intermediate layers is composed of at least an element selected from the group consisting of Ru, Re and Os and contains oxygen, and another is composed of a CoCr alloy containing at least an element selected from the group consisting of Nb, Mo, Ru, Rh, Pd, Ta, W, Re Os, Ir and Pt. The resulting magnetic recording medium provides reduced costs and improved recording characteristics.Type: GrantFiled: January 3, 2002Date of Patent: July 27, 2004Assignee: Fuji Electric Co., Ltd.Inventors: Hiroyuki Uwazumi, Tadaaki Oikawa, Takahiro Shimizu, Naoki Takizawa
-
Patent number: 6767653Abstract: 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: GrantFiled: December 27, 2002Date of Patent: July 27, 2004Assignee: General Electric CompanyInventors: Bernard Bewlay, Melvin Jackson, Ji-Cheng Zhao
-
Patent number: 6764775Abstract: 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: GrantFiled: December 19, 2001Date of Patent: July 20, 2004Assignee: Vapor Technologies, Inc.Inventor: Guocun Chen
-
Patent number: 6759138Abstract: In a magnetic recording medium which includes a base body (1-4), first and second magnetic layers (5 and 7), each being of a ferromagnetic material, and a spacer layer (6) formed between the first and the second magnetic layers for inducing antiferromagnetic exchange interaction between the first and the second magnetic layers, the second magnetic layer located farther from the base body than the first magnetic layer includes a primary layer (72) and a secondary layer (71) located nearer to the base body than the primary layer. The primary layer has a primary anisotropic magnetic field while the secondary layer has a secondary anisotropic magnetic field which is smaller than the primary anisotropic magnetic field. The first magnetic layer is for controlling the antiferromagnetic exchange interaction.Type: GrantFiled: July 2, 2002Date of Patent: July 6, 2004Assignees: Hoya Corporation, Hoya Magnetics Singapore PTE, Ltd.Inventors: Hiroshi Tomiyasu, Keiji Moroishi, Teiichiro Umezawa, Kenji Ayama
-
Publication number: 20040126613Abstract: 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: ApplicationFiled: December 27, 2002Publication date: July 1, 2004Inventors: Bernard Bewlay, Melvin Jackson, Ji-Cheng Zhao
-
Publication number: 20040121178Abstract: An ultra-thin copper foil with a carrier having a peeling layer able to withstand even high temperature working in the case of using a high heat resistant resin, enabling the carrier foil and the ultra-thin copper foil to be easily peeled apart, and reduced in the number of pinholes by uniform plating without impairing the peelability of the peeling layer, that is, an ultra-thin copper foil with a carrier comprised of a carrier foil, a peeling layer, and an ultra-thin copper foil, wherein the peeling layer and the ultra-thin copper foil are provided between them with a strike plating layer at the surface on the peeling layer side, an ultra-thin layer of copper is provided on this according to need, and an ultra-thin copper foil comprised of copper or a copper alloy or a phosphorus-containing copper or phosphorus-containing copper alloy is provided.Type: ApplicationFiled: October 31, 2003Publication date: June 24, 2004Inventors: Yuuji Suzuki, Akira Matsuda
-
Patent number: 6749941Abstract: An insulating glass (IG) window unit, or other suitable window unit, includes a glass substrate with a coating thereon. The coating includes at least one silicon nitride inclusive layer that is Si-rich (i.e., non-stoichiometric). By making the silicon nitride inclusive layer Si-rich, it has been found that coloration can be adjusted in order to achieve certain desirable optical characteristics.Type: GrantFiled: March 14, 2002Date of Patent: June 15, 2004Assignee: Guardian Industries Corp.Inventor: Philip J. Lingle
-
Patent number: 6716532Abstract: A heat treatable coated article including a solar management layer for reflecting infrared (IR) or the like, is provided between a substrate and an overlying dielectric layer. An underlying dielectric layer between the substrate and solar management layer is optional. In certain embodiments, the solar management layer may include NiCrNx while the dielectric layer(s) may include a nitride such as silicon nitride. By nitriding the solar management layer, it has been found that the resulting coated article is more color stable upon heat treatment (HT). For example, the coated article may have a &Dgr;E* value (transmissive and/or glass side reflective) of no greater than 5.0, more preferably no greater than 4.0, and most preferably no greater than 3.0. Coated articles herein may be used in the context of insulating glass (IG) window units, vehicle windows, or the like.Type: GrantFiled: December 13, 2002Date of Patent: April 6, 2004Assignee: Guardian Industries Corp.Inventors: George Neuman, Grzegorz Stachowiak, Hong Wang
-
Patent number: 6716540Abstract: A multilayer film formed body comprises an outermost layer comprising a diamondlike carbon film, a substrate comprising an iron material, and an intermediate layer comprising a first layer on the substrate side, and a second layer on the outermost layer side. The first layer comprises at least either metal of Cr and Al, and a second layer comprises an amorphous layer including carbon and at least either metal of Cr and Al. The second layer has a gradient structure where the metal decreases as the position becomes closer to the outermost layer. The hardness of the second layer increases stepwise or continuously as the position becomes closer to the outermost layer. The hardness of the second layer close to the first layer is close to the hardness of the first layer. The hardness of the second layer close to the outermost layer is close to the hardness of the outermost layer.Type: GrantFiled: March 5, 2002Date of Patent: April 6, 2004Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Toshimitsu Kohara, Koichiro Akari, Eiji Iwamura
-
Patent number: 6703145Abstract: The present invention relates to a process for electrolytic coating of a substratum, especially a piston ring, with a ceramic chrome layer, the substratum being arranged at an electrode connected to voltage and chromium ions for coating the substratum being present in the electrolyte. Furthermore the electrolyte contains a crystalline carrier structure which is present in the form of ions in the electrolyte, said carrier structure acting as a carrier of the chromium ions which are present in the electrolyte, and being incorporated in the ceramic chrome layer forming on the substratum by the process. The invention also relates to a ceramic chrome layer which is applied to a substratum, especially a piston ring, and is characterised in that the chrome layer is formed by a process as stated above and comprises a crystalline carrier structure.Type: GrantFiled: September 27, 2001Date of Patent: March 9, 2004Assignee: Koncentra Holding ABInventor: Per Samuelsson
-
Patent number: 6692833Abstract: 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: GrantFiled: March 11, 2002Date of Patent: February 17, 2004Assignee: Saint-Gobain VitrageInventor: Georges Zagdoun
-
Patent number: 6686058Abstract: On the outer surface of a metal pipe 10 there is formed a zinc plating layer 20 having a predetermined thickness by electroplating method. A coating layer 30 predominantly composed of a chromium compound and a phosphoric acid compound is formed by dipping the metal pipe 10 with layers up to the zincplating layer 20 formed thereon in a coating liquid containing chromium (a source of chromium) and at least one substance selected from the group consisting of oxyacid of phosphorus, oxysalt of phosphorus, anhydride of oxyacid of phosphorus, and anhydride of oxysalt of phosphorus. A fluorocarbon resin layer 40 is formed by coating, with polyvinyl fluoride, the metal pipe 10 with layers up to the coating layer 30 formed thereon and baking at a predetermined temperature for a predetermined time.Type: GrantFiled: October 4, 2002Date of Patent: February 3, 2004Assignee: Maruyasu Industries Co., Ltd.Inventor: Yuichiro Yoshida
-
Patent number: 6682826Abstract: 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: GrantFiled: July 25, 2002Date of Patent: January 27, 2004Assignees: Showa Denko K.K., Toshiba CorporationInventors: Kenji Shimizu, Akira Sakawaki, Hiro Mochizuki, Hiroshi Sakai, Soichi Oikawa, Takashi Hikosaka
-
Patent number: 6677052Abstract: A magnetic recording disk is provided having an amorphous preseed layer of chromium, titanium, and yttrium. The use of the preseed layer improves the magnetic performance of the disk including signal to noise, inplane orientation, and readback pulsewidth.Type: GrantFiled: May 29, 2002Date of Patent: January 13, 2004Assignees: Hitachi Global Storage Technologies, Netherlands B.V.Inventors: Xiaoping Bian, Mary Frances Doerner, Kai Tang, Qi-Fan Xiao
-
Patent number: 6673467Abstract: A metallic component exposed to high temperature steam is provided with a coating comprising a thin primer layer deposited on the surface of the metallic component and a thicker overlay layer on top of the primer layer. The primer layer consists of highly ductile, oxidation resistant material such that it remains free of any defects over a long period of exposure. The overlay layer consists of an oxidation resistant, less ductile, and low-cost material. It protects the thin primer layer from mechanical damage and chemical degradation. The primer layer protects the base material of the metallic component from oxidizing steam that may penetrate through cracks of the overlay layer. Due to suitable choice of coating materials and thicknesses of the layers the coating is low-cost.Type: GrantFiled: October 1, 2001Date of Patent: January 6, 2004Assignee: Alstom (Switzerland) LtdInventors: Richard Brendon Scarlin, Reinhard Knödler
-
Patent number: 6673476Abstract: A magnetic recording medium has a non-magnetic ground layer, a non-magnetic recording layer, a protecting layer formed sequentially on a non-magnetic substrate, one on top of another. A double-layered non-magnetic ground layer consists of a pure chromium layer, positioned closer to a substrate, and a chromium-molybdenum-tungsten ternary alloy layer, positioned closer to a magnetic recording layer. This provides the non-magnetic recording layer formed on such a ground layer with cobalt alloy grains having uniform dimensions. The resulting magnetic recording medium has an excellent SNR.Type: GrantFiled: November 28, 2001Date of Patent: January 6, 2004Assignee: Fuji Electric Co., Ltd.Inventors: Yoshiharu Kashiwakura, Yoshihumi Ajishi, Tetsu Ikegami
-
Patent number: 6670055Abstract: A magnetic recording medium that is high coersive force, hard to receive influence of thermal fluctuation, and brings about a considerable improvement of S/N ratio, and in which at least an underlayer and a magnetic layer are sequentially laminated on a substrate, wherein a pre-coat layer is interposed between said underlayer and said substrate and said pre-coat layer is constructed by sequentially laminating a lower layer containing Ni and P and an upper layer made of a Cr alloy.Type: GrantFiled: August 9, 2001Date of Patent: December 30, 2003Assignee: Hoya CorporationInventors: Hiroshi Tomiyasu, Junichi Horikawa, Teiichiro Umezawa, Kenji Ayama, Tomotaka Yokoyama
-
Patent number: 6667121Abstract: A heat treatable coated article includes an oxidation graded layer designed so as to include an at least partially oxided anti-migration or barrier layer(s) portion provided between a solar management layer portion (e.g., NiCr layer portion) and a dielectric layer (e.g., silicon nitride). In certain example embodiments, the anti-migration or barrier layer(s) portion may include a metal oxide, and function(s) to prevent element(s) from migrating between the solar management layer and the dielectric layer upon heat treatment (HT) of the coated article. As a result, the coated article has improved color stability (and thus a lower &Dgr;E* value) upon HT. In certain example embodiments, a single target may be used to sputter the graded layer including the anti-migration layer portions and the more metallic central portion. Coated articles herein may be used in the context of insulating glass (IG) window units, other architectural windows, vehicle windows, or the like.Type: GrantFiled: November 29, 2001Date of Patent: December 23, 2003Assignee: Guardian Industries Corp.Inventor: Hong Wang
-
Publication number: 20030232214Abstract: A method is provided for making vehicle trim components that have a layer(s) including chromium (Cr), in metallic, oxide, nitride, and/or carbide form. In certain embodiments, a Cr inclusive gas is used in conjunction with a vapor deposition apparatus (e.g., PECVD apparatus) in order to form a Cr inclusive layer on a substrate. In certain example embodiments, the substrate may be provided with a conductive layer thereon, and may be electrically biased in the deposition chamber. The Cr inclusive layer may be at least partially amorphous in certain example embodiments.Type: ApplicationFiled: June 18, 2002Publication date: December 18, 2003Inventor: Vijayen S. Veerasamy
-
Patent number: 6663986Abstract: 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: GrantFiled: December 27, 2001Date of Patent: December 16, 2003Assignee: Storage Technology CorporationInventor: Steven Castle Sanders
-
Patent number: 6641932Abstract: A flash chromium capping layer is deposited on a magnetic layer for improved corrosion resistance, reduced poisoning due to the absence of a protective overcoat or presence of discontinuities in a protective overcoat, and for reduced media noise do to inter-granular exchange coupling. Embodiments include depositing a flash chromium layer having a thickness up to about 10 Å on an upper magnetic layer and depositing an overlying lubricant topcoat. An optional protective overcoat, such as a carbon-containing protective overcoat, can also be deposited on the chromium capping layer. The chromium capping layer forms a protective oxide coating where exposed, as due to the absence of or at discontinuities in the protective overcoat.Type: GrantFiled: June 28, 2001Date of Patent: November 4, 2003Assignee: Seagate Technology, LLCInventors: Weilu Xu, Yuanda R. Cheng, Taesun Ernest Kim, Chung Shih, Liji Huang, Kueir Weii Chour, Steve Hwang, Roger Shih
-
Patent number: 6635358Abstract: A composite member includes a ceramic base and a metallic member which are bonded to each other. An active metal foil is disposed on the surface of the ceramic base and a solder material including Au or a solder material including an Au—Ag alloy is disposed on the active metal foil. The active metal foil and the solder material are heated to form a bonding layer and the metallic member is disposed on the surface of the bonding layer, and these are pressed and heated to bond the bonding layer and the metallic member through solid phase bonding. Since in this composite member the bonding layer and the metallic member are bonded by solid phase bonding, the composite members can be effectively inhibited from breakage caused by residual stress at the time of bonding and, moreover, is excellent in thermal cycle characteristics and thermal shock characteristics.Type: GrantFiled: July 19, 2001Date of Patent: October 21, 2003Assignee: NGK Insulators, Ltd.Inventor: Masayuki Shinkai
-
Patent number: 6627317Abstract: A heat treatable coated article includes an anti-migration or barrier layer(s) provided between a solar management layer (e.g., NiCr layer) and a dielectric layer (e.g., silicon nitride). In certain example embodiments, the anti-migration or barrier layer(s) may include a metal oxide, and functions to prevent element(s) from migrating between the solar management layer and the dielectric layer upon heat treatment (HT) of the coated article. As a result, the coated article has improved color stability (and thus a lower &Dgr;E* value) upon HT. For example, the coated article may have a &Dgr;E* value (transmissive and/or glass side reflective) upon HT of no greater than 5.0, more preferably no greater than 4.0. Coated articles herein may be used in the context of insulating glass (IG) window units, other architectural windows, vehicle windows, or the like.Type: GrantFiled: May 17, 2001Date of Patent: September 30, 2003Assignee: Guardian Industries Corp.Inventor: Hong Wang
-
Patent number: 6607847Abstract: 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: GrantFiled: May 30, 2001Date of Patent: August 19, 2003Assignee: General Electric CompanyInventors: Ji-Cheng Zhao, Melvin Robert Jackson, Bernard Patrick Bewlay
-
Patent number: 6607844Abstract: Provided are a Zn—Mg electroplated metal sheet excellent in corrosion resistance, formability and productivity, and a fabrication process therefor. The Zn—Mg electroplated metal sheet comprises a Zn—Mg electroplated layer including Mg and Zn, the Zn being a main component, formed on at least one surface of a metal substrate material. The Zn—Mg electroplated layer shows more excellent corrosion resistance by including a C component therein. The Zn—Mg electroplated metal sheet can be fabricated by performing electroplating with an acidic aqueous solution including metal salts of Zn and Mg, and in addition, a surface active agent.Type: GrantFiled: March 9, 2000Date of Patent: August 19, 2003Assignee: Kobe Steel, Ltd.Inventors: Kuniyasu Araga, Hiroo Shige, Masatoshi Iwai, Takeshi Watase, Yutaka Kitou
-
Patent number: 6602608Abstract: A coated article, and a corresponding method of making the same are provided. The coated article includes a coating supported by a substrate, the coating including a thin metal or metal nitride contact layer (e.g., NiCr, Ni, Cr, CrNx or NiCrNx) located directly between and contacting an infrared (IR) reflecting layer (e.g., Ag) and an oxide barrier layer (e.g., NiCrOx).Type: GrantFiled: November 13, 2001Date of Patent: August 5, 2003Assignee: Guardian Industries, Corp.Inventor: Grzegorz Stachowiak
-
Patent number: 6593009Abstract: 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: GrantFiled: March 2, 2001Date of Patent: July 15, 2003Assignee: Hitachi Global Storage Technologies Netherlands N.V.Inventors: Xiaoping Bian, Mary Frances Doerner, Mohammad Taghi Mirzamaani, Tim Minvielle, Kai Tang
-
Patent number: 6586102Abstract: Coated articles are provided with an anti-reflective (AR) layer(s) system which enables reduced reflection, increased visible transmission, and/or neutral color. In certain embodiments, the AR layer(s) system includes a silicon nitride layer(s), a silicon oxynitride layer, and/or a silicon oxide layer on the substrate over an infrared (IR) reflecting layer(s) such as silver. The AR system surprisingly enables improved visible transmission and/or reflection to be combined with more neutral color.Type: GrantFiled: November 30, 2001Date of Patent: July 1, 2003Assignee: Guardian Industries Corp.Inventor: Grzegorz Stachowiak
-
Patent number: 6586118Abstract: 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: GrantFiled: May 30, 2001Date of Patent: July 1, 2003Assignee: General Electric CompanyInventors: Melvin Robert Jackson, Bernard Patrick Bewlay, Ji-Cheng Zhao
-
Patent number: 6586114Abstract: 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: GrantFiled: July 24, 2002Date of Patent: July 1, 2003Assignee: Vapor Technologies, Inc.Inventor: Bryce Randolph Anton
-
Patent number: 6576349Abstract: A heat treatable coated article (e.g., vehicle windshield, IG unit, etc.) is provided with a dual-silver low-E coating. Before and/or after heat treatment (HT), the coating and/or coated article has a visible transmittance of at least 70%, more preferably at least 75%. Moreover, the coating and/or coated article is designed so as to have approximately the same color when viewed over a wide range of viewing angles. In certain embodiments, at least one contact layer (e.g., of or including NiCrOx) that contacts an infrared (IR) reflecting layer (e.g., Ag) is oxidation graded so that it progressively becomes less oxidized through its thickness as it nears the IR reflecting layer. In still other embodiments, a Si-rich silicon nitride layer(s) may be utilized to reduce haze.Type: GrantFiled: February 28, 2001Date of Patent: June 10, 2003Assignees: Guardian Industries Corp., Centre Luxembourgeois de Recherches pour le Verra et la Ceramique S.A.(C.R.V.C.)Inventors: Philip J. Lingle, Anton Dietrich, Ronald E. Laird, Jean-Marc Lemmer
-
Patent number: 6572989Abstract: In a thin film magnetic disk, a crystalline CrNi pre-seed layer is sputtered onto a substrate such as glass, followed by a RuAl seed layer. The CrNi pre-seed layer reduces grain size and its distribution, and improves in-plane crystallographic orientation, coercivity (Hc) and SNR. In a preferred embodiment the RuAl seed layer is followed by a Cr alloy underlayer. In a preferred embodiment the Cr alloy underlayer is followed by an onset layer and a magnetic layer, or by two or more magnetic layers antiferromagnetically coupled through one or more spacer layers. The crystalline CrNi pre-seed layer allows use of a thinner RuAl seed layer which results in smaller overall grain size, as well as a reduction in manufacturing cost due to relatively high cost of ruthenium. The CrNi pre-seed layer also allows use of a thinner Cr alloy underlayer which also contributes to reduce overall grain size.Type: GrantFiled: June 6, 2001Date of Patent: June 3, 2003Assignee: International Business Machines CorporationInventors: Xiaoping Bian, Mary Frances Doerner, Tim Minvielle, Mohammad Taghi Mirzamaani, Kai Tang
-
Patent number: 6565990Abstract: 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: GrantFiled: May 30, 2001Date of Patent: May 20, 2003Assignee: General Electric CompanyInventors: Bernard Patrick Bewlay, Melvin Robert Jackson, Ji-Cheng Zhao
-
Patent number: 6567236Abstract: An antiferromagnetically coupled layer structure for magnetic recording wherein the top ferromagnetic structure is a bilayer structure including a relatively thin first sublayer of ferromagnetic material in contact with the coupling/spacer layer. The first sublayer has a higher magnetic moment than the second sublayer. The layer structure of the invention results improved manufacturability and improved performance. A preferred embodiment of a layer structure according to the invention includes: a bottom ferromagnetic layer preferably of CoCr; an antiferromagnetic coupling/spacer layer preferably of Ru; and a top ferromagnetic structure including a thin first sublayer of material preferably of CoCr, CoCrB or CoPtCrB, and a thicker second sublayer of material preferably of CoPtCrB with a lower moment than the first sublayer.Type: GrantFiled: November 9, 2001Date of Patent: May 20, 2003Assignee: International Business Machnes CorporationInventors: Mary Frances Doerner, Eric E. Fullerton, David T. Margulies, Kai Tang
-
Patent number: 6565989Abstract: 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: GrantFiled: May 30, 2001Date of Patent: May 20, 2003Assignee: General Electric CompanyInventors: Ji-Cheng Zhao, Melvin Robert Jackson, Bernard Patrick Bewlay
-
Patent number: 6562480Abstract: 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: GrantFiled: January 10, 2001Date of Patent: May 13, 2003Assignee: Dana CorporationInventors: Thomas C. Stong, Peter J. Einberger, Thomas J. Smith
-
Patent number: 6558816Abstract: 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: GrantFiled: April 5, 2001Date of Patent: May 6, 2003Assignee: Vapor Technologies, Inc.Inventor: Guocun Chen
-
Patent number: 6551722Abstract: 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: GrantFiled: April 11, 2001Date of Patent: April 22, 2003Assignee: Masco Corporation of IndianaInventors: Patrick B. Jonte, James S. Lipe, Guocun Chen
-
Patent number: 6548192Abstract: 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: GrantFiled: April 5, 2001Date of Patent: April 15, 2003Assignee: Vapor Technologies, Inc.Inventor: Guocun Chen
-
Patent number: 6548193Abstract: 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 color layer comprised of the reaction products of refractory metal or refractory metal alloy, nitrogen and oxygen wherein the total nitrogen and oxygen content is from about 4 to about 32 atomic percent with the nitrogen content being at least about 3 atomic percent.Type: GrantFiled: April 5, 2001Date of Patent: April 15, 2003Assignee: Vapor Technologies, Inc.Inventor: Guocun Chen
-
Patent number: 6544664Abstract: A copper foil for use in making a printed wiring board and a copper clad laminate comprising the copper foil are herein disclosed and the copper foil is characterized in that a metal chromium layer is formed on at least one side of the copper foil by vapor deposition or characterized in that one side of the copper foil is supported by a carrier through a releasing layer and a metal chromium layer is formed on the other side of the foil by vapor deposition. The copper foil is excellent in the adhesion to various substrates (the peel strength between the substrate and the copper foil), moisture resistance, chemical resistance and heat resistance and therefore, the copper foil can suitably be used in the production of printed wiring boards.Type: GrantFiled: May 24, 2000Date of Patent: April 8, 2003Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Naotomi Takahashi, Yoichi Babasaki, Tsutomu Higuchi, Osamu Nakano, Hiroshi Watanabe, Masaru Takahashi, Makoto Dobashi
-
Patent number: 6531226Abstract: 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: GrantFiled: May 30, 2000Date of Patent: March 11, 2003Assignee: Morgan Chemical Products, Inc.Inventor: Ronald R. Petkie
-
Patent number: 6509108Abstract: A magnetic recording medium has a nonmagnetic substrate having applied thereon through a nonmagnetic underlayer a magnetic recording layer composed of a magnetic metal material. The nonmagnetic substrate has a smooth surface with an average surface roughness Ra of not more than 20 Å, a recesses-and protrusions-forming layer having stripe-like protrusions and recesses in the circumferential direction, formed on the substrate. A CrP or CrMoP reinforcing coat layer having a hardness higher than that of the recesses-and protrusions-forming layer is sandwiched between the substrate and the recesses-and-protrusions-forming layer.Type: GrantFiled: March 19, 2001Date of Patent: January 21, 2003Assignee: Fujitsu LimitedInventors: Chiaki Okuyama, Yuki Yoshida, Kenji Sato, Kiyoshi Yamaguchi, Yoshita Kitamoto
-
Publication number: 20030012975Abstract: A composite copper foil (10) comprises a carrier foil (12) formed by electrodeposition onto a cathode, the carrier foil (12) having a cathode side formed in contact with the cathode and an opposite electrolyte side. A very thin release layer (14) is on the electrolyte side of said carrier foil (12). A thin functional foil (16) formed by deposition of copper has a front side in contact with the release layer (14) and an opposite back side. The electrolyte side of the carrier foil (12) has a surface roughness Rz less than or equal to 3.5 &mgr;m. There is also presented a method for manufacturing such a composite copper foil.Type: ApplicationFiled: August 19, 2002Publication date: January 16, 2003Inventors: Raymond Gales, Rene ` Lanners, Michel Streel, Akitoshi Suzuki
-
Patent number: 6503642Abstract: In an electrodeposited hard-chromium coat, particularly for a piston ring, which is substantially formed of an electrolyte containing hexavalent chromium, wherein there are cracks in the coat and diamond particles are embedded in these cracks, the diamond particles have a size ranging from 0.25 to 0.5 &mgr;m.Type: GrantFiled: March 7, 2001Date of Patent: January 7, 2003Assignee: Federal Mogul Burscheid GmbHInventor: Rudolf Linde