Oxide-containing Component Patents (Class 428/632)
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Patent number: 5041342Abstract: In a multilayered ceramic substrate having a ceramic substrate fireable in low temperatures and a metal member for input/output brazed to the ceramic substrate, an intermediate layer including a ceramic component is arranged between the ceramic substrate and the metal member in such a manner that thermal coefficients .alpha..sub.1, .alpha..sub.2 and .alpha..sub.3 between a room temperature and near a brazing temperature of the metal member, the ceramic component in the intermediate layer and the ceramic layer, respectively, maintains a relation of .alpha..sub.1 >.alpha..sub.2 >.alpha..sub.3. Moreover, the ceramic substrate fireable in low temperatures is constructed by first ceramic layer having a flexural strength more than 25 kg/mm.sup.2 and a second ceramic layer having a dielectric constant less than 7.Type: GrantFiled: July 6, 1989Date of Patent: August 20, 1991Assignee: NGK Insulators, Ltd.Inventors: Yuhji Umeda, Tadashi Otagiri, Go Suzuki
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Patent number: 5035957Abstract: Disclosed are coated metal articles having protective coatings which are applied to substrate metals by coating the metal surface, e.g. by dipping the substrate metal in a molten alloy of the coating metals, and then exposing the coating at an elevated temperature to an atmosphere containing a reactive gaseous species which forms an oxide, a nitride, a carbide, a boride or a silicide. The coating material is a mixture of the metals M.sub.1 and M.sub.2, M.sub.1 being zirconium and/or titanium, which forms a stable oxide, nitride, carbide, boride or silicide under the prevailing conditions. The metal M.sub.2 does not form a stable oxide, nitride, carbide, boride or silicide. M.sub.2 serves to bond the oxide, etc. of M.sub.1 to the substrate metal. Mixtures of M.sub.1 and/or M.sub.2 metals may be employed. Eutectic alloys of M.sub.1 and M.sub.2 which melt substantially lower than the melting point of the substrate metal are preferred.Type: GrantFiled: February 23, 1990Date of Patent: July 30, 1991Assignee: SRI InternationalInventors: Robert W. Bartlett, Paul J. Jorgensen, Ibrahim M. Allam, David J. Rowcliffe
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Patent number: 5029149Abstract: An object, which is particularly destined for use in horology or jewelry, includes a substrate which constitutes the framework and which is preferably formed from injected cast aluminium. A decorative and protective coating overlays the substrate, such coating consisting of a deposit of a first layer of aluminium in a substantially pure state and a second layer capping the first, said second layer being constituted of aluminium oxide formed from the first layer. The object may be a watch case or a bracelet link.Type: GrantFiled: August 27, 1990Date of Patent: July 2, 1991Assignee: ETA S.A. Fabriques d'EbauchesInventors: Jacques Muller, Andre Triponez
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Patent number: 5028495Abstract: A composite foil brazing material for joining ceramics to each other or to metal, which is made up of a core of Ti and outer layers of Ni or Ni alloy containing less than 80% of Cu, with the core and the composite foil having the respective sectional areas whose ratio is 5/10 to 9/10.Type: GrantFiled: June 20, 1990Date of Patent: July 2, 1991Assignee: Sumitomo Special Metal Co., Ltd.Inventors: Kenji Hirano, Minoru Suenaga, Masaaki Ishio
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Patent number: 5023147Abstract: A ceramics-metal joined body which excels in high temperature characteristics and joint strength is formed by metallizing the surface of ceramics such as oxides, carbides, borides, nitrides, and composites thereof, and joining a metallic member through a solder to the metallized surface.Type: GrantFiled: July 31, 1989Date of Patent: June 11, 1991Assignee: Sumitomo Electric Industries, Ltd.Inventors: Hirohiko Nakata, Takao Nishioka, Nobuya Oooka, Kenya Motoyoshi
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Patent number: 5023146Abstract: Disclosed are a black surface-treated steel sheet, which comprises a steel sheet or plated steel sheet and a electrodeposited composite plating coating formed in a deposition amount of 0.1 to 5 g/m.sup.2 on the surface of the steel sheet or plated steel sheet, the plating coating containing metallic zinc or Zn--Ni alloy and oxides or hydrous oxides and sulfur compound, and a process for the preparation of a black surface-treated steel sheet, which comprises carrying out the electrolysis in an acidic aqueous solution containing Zn.sup.2+ and, as the main components, at least one member selected from the group consisting of Fe.sup.2+, Co.sup.2+ and Ni.sup.2+, and oxidative ion, and a thio compound, by electrolysis a steel sheet or plated steel sheet as the cathode, and water-washing and drying the treated steel sheet.Type: GrantFiled: March 20, 1990Date of Patent: June 11, 1991Assignee: Nippon Steel CorporationInventors: Katsushi Saito, Yujiro Miyauchi, Toshimichi Murata, Yoshio Shindo
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Patent number: 5019891Abstract: A semiconductor device and the method of fabricating the semiconductor device include a semiconductor substrate and a plurality of conductor films formed on the substrate. Each of the conductor films is made of aluminum alloy including at least one element selected from palladium and platinum and, more preferably, further including at least one element selected from lithium, beryllium, magnesium, manganese, iron, cobalt, nickel, copper, lanthanum, cerium, chromium hafnium, zirconium, cadmium, titanium, tungsten, vanadium, tantalum, and niobium, with a protective film which includes oxide of the selected one of palladium and platinum being formed on the side wall of the conductor film.Type: GrantFiled: January 12, 1989Date of Patent: May 28, 1991Assignee: Hitachi, Ltd.Inventors: Jin Onuki, Yasushi Koubuchi, Shinichi Fukada, Katuhiko Shiota, Kunio Miyazaki, Tatsuo Itagaki, Genji Taki
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Patent number: 5019458Abstract: The invention provides a protected silvered substrate of the type comprising in combination, a substrate having a layer of substantially silver deposited thereon, a layer of aluminum oxide secured to the silver layer, and a layer of silicon dioxide secured to the layer of aluminum oxide, characterized by a layer of zinc sulfide between the layer of substantially silver and the layer of aluminum oxide to improve the adhesion of the alumina to the silver and front surface mirrors and low emissivity glass utilizing the same.Type: GrantFiled: April 19, 1989Date of Patent: May 28, 1991Assignee: Luz Industries Israel, Ltd.Inventors: Zvi Elgat, Joel P. Warschawski
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Patent number: 5017439Abstract: A process for treating the surface of a die-cast article including the steps of chemically cleaning the surface, cleaning the surface with an argon plasma, depositing an ion vapor generated metallic coating, mechanically treating the deposited coating, and chromate converting the mechanically treated coating. Preferably, the die-cast metal article consists essentially of an aluminum or magnesium alloy while the metallic coating is aluminum. The mechanical treatment may be carried out by bead blasting, tumbling or barreling and may be followed by walnut shell polishing.Type: GrantFiled: July 19, 1989Date of Patent: May 21, 1991Assignee: Seagate Technology, Inc.Inventors: Amarjit S. Brar, Prativadi B. Narayan
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Patent number: 5015537Abstract: An improved ornamental member including at least two types of Cr or Ti hard films of different color tones disposed by ion plating on a substrate is prepared. The laminate includes a combination of Cr and Ti hard films including a stainless steel colored Cr hard film layer containng Cr, N and C as the main constituents, a gold colored Ti hard film having Ti and N as the main constitutents, a dark grey Ti hard film having Ti, N and C as the main constituents, a blue Ti hard film having Ti and O as the main constituents and a brown Ti hard film having Ti, O and C as the main constituents. The thickness of a single year of hard film is between about 0.2 and 1.5 .mu.m and the total film thickness at the laminated portion is less than about 3 .mu.m. Preferably, each hard film layer is between about 0.2 and 0.8 .mu.m.Type: GrantFiled: September 11, 1989Date of Patent: May 14, 1991Assignee: Seiko Epson CorporationInventors: Akira Uchiyama, Kiyohiro Imai
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Patent number: 5015536Abstract: A metal shaft is joined to a permanent magnet by a seal formed of a thin layer of a metal on the magnet which forms a bond with the magnet. A layer of a solorable metal provided on the thin layer and a layer of a low melting point solder contacting the metal shaft and layer of solderable metal.Type: GrantFiled: July 14, 1989Date of Patent: May 14, 1991Assignee: North American Philips CorporationInventors: Richard C. Sweet, Jose M. I. Azevedo, Robert L. Bronnes
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Patent number: 5013612Abstract: An improved active metal braze filler material is provided in which the coefficient of thermal expansion of the braze filler is more closely matched with that of the ceramic and metal, or two ceramics, to provide ceramic to metal, or ceramic to ceramic, sealed joints and articles which can withstand both high temperatures and repeated thermal cycling without failing.Type: GrantFiled: November 13, 1989Date of Patent: May 7, 1991Assignee: Ford Motor CompanyInventors: Thomas K. Hunt, Robert F. Novak
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Patent number: 5011745Abstract: Process for the production of contact strips on substrates, especially on plates of mineral glass. These substrates are provided with an electrically conductive surface coating which is coated on the side facing away from the substrate with at least one surface layer of a dielectric material. For the production of the contact strips, a noble metal suspension in a liquid is deposited according to the invention on the surface layer in the pattern of the contact strips. Then the substrate with the pack of layers is exposed to a heat treatment at at least 100.degree. C. until a lowered total resistance occurs through the conductive surface coating between the contact strips.Type: GrantFiled: January 24, 1989Date of Patent: April 30, 1991Assignee: Leybold AktiengesellschaftInventors: Anton Dietrich, Klaus Hartig, Hans-Christian Schaefer, Joachim Szczyrbowski
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Patent number: 5011744Abstract: A colored zinc composite-plated steel sheet which comprises a steel sheet or a plated steel sheet, a colored composite-plating film comprising zinc and an oxide of a coloring metal such as nickel, cobalt, iron, chromium, tin or copper and provided on the steel sheet at a coverage of 0.1-5 g/m.sup.2 and a transparent guard coat of 3 .mu.m or less thick provided on the film is obtained by carrying out electrolysis in an acidic aqueous solution containing zinc ion, a coloring metal ion and nitrate ion, nitrite ion, perchlorate ion, chlorate ion, condensed phosphate ion and having a pH of 1-4 using the steel sheet or plated steel sheet as a cathode at a current density of 5-100 A/dm.sup.2 and a current quantity of 20-200 coulomb/dm.sup.2.Type: GrantFiled: May 11, 1989Date of Patent: April 30, 1991Inventors: Katushi Saito, Yoshio Shindou, Toshimichi Murata, Fumio Yamazaki, Takashi Shimazu
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Patent number: 5009966Abstract: The invention discloses a coated substrate product comprised of a titanium of titanium alloy substrate, at least one thin interlayer composed of a non-reactive noble metal and a hard outer coating selected from the group comprised of a ceramic, a hard metal, a hard metal compound and a diamond-like carbon, wherein at least the non-reactive noble metal interlayer which is immediately adjacent to the titanium or titanium alloy substrate is deposited onto the substrate by means of an electroless plating procedure, and the hard outer coating is deposited onto the non-reactive interlayer(s) by means of known chemical and physical vapor deposition techniques. The invention also discloses a method for making these coated substrate products.Type: GrantFiled: September 19, 1989Date of Patent: April 23, 1991Inventors: Diwakar Garg, Carl F. Mueller, Leslie E. Schaffer, Paul N. Dyer
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Patent number: 5006419Abstract: A structural component of titanium or titanium alloy is provided with a protective coating made substantially of an oxidation resistant and diffusion inhibiting base layer (2), an intermediate layer (3) forming a titanium fire inhibiting layer, and a cover layer (4) forming a passivating sealing layer. These layers are applied by various methods.Type: GrantFiled: February 26, 1990Date of Patent: April 9, 1991Assignee: MTU Motoren-und Turbinen-Union Muenchen GmbHInventors: Richard Grunke, Lothar Peichl, Franz Puchinger, Gerhard Wydra
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Patent number: 5001019Abstract: Joined ceramic and metal is characterized by ceramic and metal thermally joined through an intermediate layer. The intermediate layer is composed of 20-70% by weight of silver, 1-20% by weight of palladium, 10-60% by weight of nickel and 1-10% by weight of titanium. The joined ceramic and metal has sufficient joining strength both at normal temperature and at high temperature, because the joined ceramic and metal suffers little deterioration even at high temperature. Since the joined ceramic and metal has the characteristics of ceramic such as resistance to heat, corrosion and wear, it can be used for a structure operated at high temperature such as a gas turbine engine, a turbo charger rotor, a piston, a suction valve, and an exhaust valve.Type: GrantFiled: September 21, 1989Date of Patent: March 19, 1991Assignee: NGK Spark Plug Co., Ltd.Inventors: Masaya Ito, Katsumi Miyama
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Patent number: 4999258Abstract: Surface treated steel sheets having excellent rust resistance and weldability, suitable for manufacturing various kinds of cans, produced by a process comprising applying 0.2 to 1 g/m.sup.2 of tin coating on a surface of a nickel coated cold rolled steel sheet, applying 0.01 to 0.3 g/m.sup.2 of zinc coating on the tin coating in such an amount that the ratio of the zinc coating amount to the tin coating amount is in a range from 2 to 30% by weight, and heating the coatings to alloy substantially all of the zinc into the tin coating layer with substantially no non-alloyed zinc left on the tin coating.Type: GrantFiled: May 19, 1988Date of Patent: March 12, 1991Assignee: Nippon Steel CorporationInventors: Ryousuke Wake, Kazuya Ezure
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Patent number: 4996116Abstract: A direct (metal-metal compound eutectic) bond process is improved by disposing a eutectic/substrate-wetting enhancement layer on the substrate prior to performing the direct bond process to bond a metal foil to the substrate. Where the metal is copper, the direct bond process is rendered more effective than prior art direct bond processes on alumina and beryllia and makes the direct bond process effective on tungsten, molybdenum and aluminum nitride, all of which were unusable with the prior art direct bond copper process. A variety of new, useful structures may be produced using this process. The eutectic/substrate-wetting enhancement layer is preferably a noble-like metal or includes a noble-like metal such as platinum, palladium and gold.Type: GrantFiled: December 21, 1989Date of Patent: February 26, 1991Assignee: General Electric CompanyInventors: Harold F. Webster, Constantine A. Neugebauer, James F. Burgess
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Patent number: 4985313Abstract: An article of manufacture, for example a conductor for an electrical wire or cable, is provided with a refractory coating preferably formed from a refractory metal or semi-metal oxide or nitride and preferably deposited on the surface of the article by a vacuum deposition process such as a sputter ion plating method. Adhesion of the refractory coating, especially at high temperatures may be improved, and migration of the substrate metal through the coating may be suppressed by varying the stoichiometry of the coating through its thickness and/or by the provision of a metallic or refractory intermediate layer. The articles are particularly suitable for use in circuit and signal integrity cables.The vacuum deposited refractory layer may constitute the sole refractory, or additional refractory layers may be deposited by other methods e.g. a sol-gel method.Type: GrantFiled: January 14, 1986Date of Patent: January 15, 1991Assignee: Raychem LimitedInventors: Richard J. Penneck, James M. O'Brien, Stephen J. Duckworth, Nicholas J. G. Smith
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Patent number: 4985312Abstract: The invention provides a heat reflecting glass plate with a multilayer coating on a transparent glass plate. The multilayer coating comprises a film of indium-tin oxide (ITO) of Al=N deposited on the glass surface, a heat reflective film of Ag or Cu deposited on the ITO or AlN film to a thickness of 40-200 .ANG., a metal Zn film deposited on the Ag or Cu film to a thickness of 20-200 .ANG. and an ITO or AlN film as the outermost layer. The multilayer coating may further comprise at least one set of the Ag or Cu film, metal Zn film and ITO or AlN film such that each Ag or Cu film overlies an ITO or AlN film and is overlaid with a metal Zn film and that the outermost layer is an ITO or AlN film. The multilayer coating is excellent in the fundamental characteristics as a heat reflecting and transparent coating and also in moisture resistance.Type: GrantFiled: December 1, 1989Date of Patent: January 15, 1991Assignee: Central Glass Company, LimitedInventors: Koichi Furuya, Hiroshi Nakashima, Yasunobu Iida, Nobuyuki Takeuchi, Masato Nakamura
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Patent number: 4983576Abstract: A superconducting structural body comprisinga superconducting ceramics anda metal sheath surrounding the superconducting ceramics,the metal sheath includingan Ag portion anda non-Ag metal portion, the Ag portion existing from inner to outer faces of the metal sheath, and the superconducting ceramics portion existing in the structural body and the non-Ag metal portion used as a structural material for the metal sheath as the outermost indirectly contacting each other through the Ag material.Type: GrantFiled: August 24, 1989Date of Patent: January 8, 1991Assignee: Mitsubishi Kinzoku Kabushiki KaishaInventors: Sadaaki Hagino, Motokazu Suzuki, Shigeru Nishikawa, Kenichi Hayashi
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Patent number: 4978586Abstract: The invention relates to a steel substrate with metal coatings for the reinforcement of vulcanizable elastomers, as well as a method for the continuous manufacture of a thus coated substrate and elastomer objects reinforced with said substrate.The substrate is provided with a first coating and a second coating at least covering part of the first one and a bonding layer being present between the two said coatings. The second coating comprises e.g. cobalt that can be applied by plasma sputtering. The coating combination can be easily adapted to the specific elastomer compositions and the reinforcement requirements aimed at.Type: GrantFiled: October 14, 1988Date of Patent: December 18, 1990Assignee: N. V. Bekaert S.A.Inventors: Daniel Chambaere, Wilfred Coppens, Hugo Lievens, Roger De Gryse, Robert Hoogewijs, Joost Vennik, Lucien Fiermans
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Patent number: 4970126Abstract: This invention relates to a highly corrosion-resistant, multi-layer coated steel sheet, and includes an undercoat film obtained by galvanization or zinc-alloy plating and a chromate coated film thereon, on which a resin-composition film is further applied, comprising an organic high-molecular weight resin having a glass transision temperature of 343.degree. to 423.degree. K. and soluble in organic solvent and hydrophobic silica.For the purpose of improvement of corrosion preventiveness, a sparingly water soluble Cr compound may be contained in this resin composition film. Together with this sparingly water soluble Cr compound, a di- or tri-alkoxysilane compound may be also contained in the resin composition film.Type: GrantFiled: March 1, 1988Date of Patent: November 13, 1990Assignees: Nippon Kokan Kabushiki Kaisha, Kansai Paint Co., Ltd.Inventors: Takeshi Adaniya, Masaaki Yamashita, Takahiro Kubota, Norio Nikaido, Yoshiaki Miyosawa, Tadashi Nishimoto, Kazuhiko Ozawa
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Patent number: 4966816Abstract: A pack assembly for use in hot rolling a material sensitive to heat loss, such as gamma titanium aluminide. The pack assembly has a pair of opposed deformable metal cover plates adjacent opposite outer major surfaces of at least one flat product of the material to be hot rolled positioned between the cover plates. A continuous thermal barrier is positioned between each of the outer major surfaces of each of the cover plates.Type: GrantFiled: June 7, 1989Date of Patent: October 30, 1990Assignee: Titanium Metals Corporation of America (TIMET)Inventors: Tommie L. Wardlaw, Paul J. Bania
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Patent number: 4963974Abstract: The present invention relates to an electroless gold plating solution, a method of plating by using the same, and an electronic device plated with gold by using the same.According to the present electroless gold plating solution, the plating solution components contain no cyanide ions, the amount of a reducing agent used is small, and gold plating can be carried out without causing the gold plating on conducting paths having a fine interval between them to short-circuit the conducting paths.Therefore, according to the method of gold plating by using said electroless gold plating solution, a plating method that is safe in the plating work and in the treatment of its waste liquor can be accomplished. The method has a feature that the method can provide an electronic device on which parts can be mounted highly densely, and wherein the joint reliability to the parts is high.Type: GrantFiled: April 20, 1988Date of Patent: October 16, 1990Assignee: Hitachi, Ltd.Inventors: Jiro Ushio, Osamu Miyazawa, Akira Tomizawa, Hitoshi Yokono, Naoya Kanda, Naoko Matsuura, Setsuo Ando, Hiroaki Okudaira
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Patent number: 4959277Abstract: The present invention relates to a process for surface treatment for cathodic electrodeposit coating of a zinc-plated or zinc alloy-plated steel sheet comprising coating and drying a protective coating material on said steel sheet chromate-treated beforehand, to form a protective film before subjecting the sheet to the cathodic electrodeposit coating, which comprises coating a protective coating material having as a principal constituent of film-forming organic component a block isocyanate-containing prepolymer containing in one and the same molecule respectively at least one blocked isocyanate group, hydroxyl group, and tertiary amono group and containing 10-100 parts by weight of silica sol relative to 100 parts by weight of said prepolymer, in an amount of 0.3 g-4 g/m.sup.2, and then heat-drying the same.Type: GrantFiled: December 1, 1989Date of Patent: September 25, 1990Assignees: Nihon Parkerizing Co., Ltd., Mitsubishi Kasei CorporationInventors: Kenshi Saeki, Takao Ogino, Noriaki Yoshitake, Takumi Honda, Akira Nishihara, Hiroshi Okita, Yukio Tsuge, Haruo Iizuka
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Patent number: 4957594Abstract: A zinc- or zinc alloy-coated steel sheet having an excellent spot-weldability, comprising: a base steel sheet; one or more layers coated on the steel sheet, at least one of the coated layers containing zinc as a major component; and an oxidized layer formed on the outermost of the coated layers and containing zinc in an amount of from 0.03 to 3.0 g/m.sup.2, the oxidized layer containing at least one of zinc oxide and zinc hydroxide.Type: GrantFiled: February 13, 1989Date of Patent: September 18, 1990Assignee: Nippon Steel CorporationInventors: Kazumasa Yamazaki, Yaichiro Mizuyama, Takashi Horita, Shinichi Suzuki
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Patent number: 4948678Abstract: The present invention provides an organic composite plated steel sheet highly susceptible to cationic electrodeposition comprising a steel substrate plated with one selected from the group consisting of zinc, a zinc alloy, a zinc composite alloy, or aluminum, and a first layer of a less soluble chromate film having a water soluble content of 5% or less formed on the substrate in an amount of 10 to 150 mg as the total amount of chromium per square meter, and a second layer as a solid thin coating film of 0.1 to 2 .mu.m formed on the first layer, the second layer being formed with a coating composition containing 10 to 50% by weight of solids comprising:(a) 30% by weight or more of a bisphenol A type epoxy resin having a number average molecular weight of 300 to 100,000 based on the total solids in the coating composition;(b) a weight ratio of at least one curing agent selected from the group consisting of polyisocyanate compounds and block polyisocyanate compounds to the epoxy resin solid of 0.1 to 2.Type: GrantFiled: January 22, 1990Date of Patent: August 14, 1990Assignee: Nippon Steel CorporationInventors: Yoshio Shindou, Takashi Shimazu
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Patent number: 4940495Abstract: A light transmitting electrically conductive stacked film, useful as a light transmitting electrode, including a first light transmitting electrically conductive layer, having a first optical thickness, a second light transmitting layer, having a second optical thickness different from the optical thickness of the first layer, and an electrically conductive metallic layer interposed between and in initimate contact with the first and second layers.Type: GrantFiled: December 7, 1988Date of Patent: July 10, 1990Assignee: Minnesota Mining and Manufacturing CompanyInventors: Michael F. Weber, Nang T. Tran, Frank R. Jeffrey, James R. Gilbert, Frank E. Aspen
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Patent number: 4929514Abstract: A magnetic thin film materials system (10, 10') is provided, comprising a thin magnetic film (16) formed on a non-magnetic underlayer (14) formed on a substrate (12). In particular, the magnetic film comprises a composition consisting essentially of CoCrPt, with Cr ranging from about 10 to 20 at %, Pt ranging from about 1 to 20 at % and the balance Co. The underlayer consists essentially of chromium. The magnetic layer ranges in thickness from about 200 to 1,200 .ANG., while the non-magnetic underlayer ranges in thickness from about 500 to 5,000 .ANG.. The platinum control film coercivity, while chromium provides corrosion resistance. In addition, chromium controls the recorded magnetic transition noise properties. An increase in Cr content in these alloys beyond about 10 at % increases the corrosion resistance and unexpectedly lowers the transition noise significantly. Coercivities of from about 500 to greater than 2,000 Oe and magnetization-thickness products from 1 to 6.times.10.sup.-3 emu/cm.sup.Type: GrantFiled: March 22, 1988Date of Patent: May 29, 1990Assignee: Hewlett-Packard CompanyInventors: Bangalore R. Natarajan, Robert G. Walmsley
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Patent number: 4927714Abstract: The coated article includes a refractory metal substrate having an oxidation resistant intermetallic layer formed in situ thereon; e.g., a fused refractory metal silicide layer, and a ceramic layer applied on and adhering to the intermetallic layer to provide enhanced high temperature properties and improved resistance to premature catastrophic failure in high temperature oxidizing environments where dissimilar materials are present that may destructively react with the intermetallic layer.Type: GrantFiled: March 13, 1989Date of Patent: May 22, 1990Assignee: Barson CorporationInventor: Seymour Priceman
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Patent number: 4923764Abstract: An article having a colored surface comprises an article having a working surface and a coating applied on the working surface comprising a cermet composed of alumina and one of chromium and nichrome and exhibiting a black silver color.Type: GrantFiled: September 1, 1987Date of Patent: May 8, 1990Assignee: Seikosha Co., LtdInventors: Kouji Hirose, Hitoshi Ito, Kazuhito Yoshida
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Patent number: 4917968Abstract: A structure which is resistant to corrosion at high temperatures comprises a ductile layer of a platinum group metal, such as iridium, and a layer of a refractory metal having a high strength at high temperatures, such as rhenium. A solid solution of the two metals is present between and metallurgically bonded to the two metal layers. Further, the structure may include a layer of ceramic such as zirconia or hafnia on the exposed face of the platinum group metal layer.Type: GrantFiled: April 15, 1988Date of Patent: April 17, 1990Assignee: ULTRAMETInventors: Robert H. Tuffias, John Harding, Richard Kaplan
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Patent number: 4916002Abstract: A microminiature tip and tip assembly is fabricated using microelectronic fabrication techniques. A masking aperture is formed in a dielectric layer which overlies a (100) silicon substrate. For a square aperture, a pyramidal pit is anisotropically etched into the surface of the silicon substrate. Tungsten is selectively deposited in the pit to form a pyramid-shaped microminiature point. Continued deposition of tungsten fills the aperture to form a base portion of the tip which integrally locks the tip to the dielectric layer, which is fabricated to form a support member for the tip.Type: GrantFiled: January 13, 1989Date of Patent: April 10, 1990Assignee: The Board of Trustees of the Leland Jr. UniversityInventor: Thomas E. Carver
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Patent number: 4916022Abstract: A ceramic thermal barrier coating system for superalloy components subjected to high operating temperatures, such as gas turbine engine airfoils, is disclosed which includes a titania doped interfacial layer between the metallic substrate and the ceramic overcoat in order to better resist failure by spalling.Type: GrantFiled: November 3, 1988Date of Patent: April 10, 1990Assignee: Allied-Signal Inc.Inventors: Patricia A. Solfest, Thomas E. Strangman
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Patent number: 4913980Abstract: A method of protecting ferrous metal structures from oxidative attack in an aqueous, corrosive, oxidative environment by applying a thin, impervious coating of an oxide of titanium, zirconium, tantalum or niobium (or a mixture of two or more such oxides). The coating is applied as an alloy (preformed or form in situ) of the respective metal and a more noble metal such as nickel, cobalt, copper or iron and the alloy is preferably thermally oxidized under conditions to oxidize the titanium, zirconium and/or niobium without oxidizing the more noble metal, which serves to bind the oxide coating to the substrate. Alternatively the alloy may be applied, and then oxidized by the conditions of use.Type: GrantFiled: April 22, 1988Date of Patent: April 3, 1990Assignee: S R I InternationalInventors: David J. Rowcliffe, Ibrahim M. Allam, Paul J. Jorgensen
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Patent number: 4913973Abstract: The present invention is directed to a novel anode suitable for producing high purity, pore-free coper foil at high speed and low cost under severe conditions. The anodes of the present invention are capable withstanding high acid concentrations, current densities and temperatures which would rapidly destroy the prior art anodes. This is accomplished by producing the anodes of the present invention by a new and novel process which results in structural superior anodes. The anodes of the present invention are produced by first electrodepositing on a valve metal substrate platinum to a thickness of at least about 150 microinches to about 400 microinches. The next step in the process involves "densification" of the platinum layer by heat treatment so as to close the pores of the platinum layer. This results in a substantially closed pore platinum layer.Type: GrantFiled: September 8, 1988Date of Patent: April 3, 1990Assignee: Engelhard CorporationInventor: Mark J. Geusic
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Patent number: 4910097Abstract: A corrosion preventive steel sheet having an organic coating layer is described. The steel sheet is comprised of a zinc alloy-plated steel sheet, and a chromate layer and an organic coating layer formed in this order on at least one side of the steel sheet. The organic coating layer is formed from a coating composition comprised of 100 parts by weight of a water-soluble urethane resin and from 5 to 80 parts by weight of colloidal silica. A method for making the corrosion preventive steel sheet is also described.Type: GrantFiled: December 15, 1988Date of Patent: March 20, 1990Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Shingo Nomura, Hirohiko Sakai, Kanji Nakamura, Etuo Yamamoto
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Patent number: 4910095Abstract: An electroplated composite steel strip having a high corrosion resistance comprises a steel strip substrate and a corrosion resistant coating layer which comprises at least a base plating layer comprising a zinc-based metal matrix, a number of corrosion-preventing fine solid particles consisting essentially of core fine particles of, for example, chromate, phosphate, aluminum, molybdenum or titanium compounds, and encapsulated by very thin coating membranes consisting of, for example, SiO.sub.2, Al.sub.2 O.sub.3, ZrO.sub.2 or TiO.sub.2, and optionally a number of additional fine particles consisting essentially of, for example, SiO.sub.2, TiO.sub.2, Cr.sub.2 O.sub.3, Al.sub.2 O.sub.3, ZrO.sub.2, SnO.sub.2 or Sb.sub.2 O.sub.5.Type: GrantFiled: December 14, 1988Date of Patent: March 20, 1990Assignee: Nippon Steel CorporationInventors: Teruaki Izaki, Makoto Yoshida, Masami Osawa, Seijun Higuchi, Sato Hisaaki
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Patent number: 4902581Abstract: A transparent article for reflecting solar energy comprising a metal oxide film which exhibits color by absorption and interference effects and a highly reflective metal film is disclosed along with a sputtering method for its production.Type: GrantFiled: December 17, 1984Date of Patent: February 20, 1990Assignee: PPG Industries, Inc.Inventor: Russell C. Criss
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Patent number: 4898789Abstract: A multiple-layer, high transmittance, low emissivity coated article is disclosed comprising at least two infrared reflective metal layers alternatingly combined with at least three metal oxide antireflective layers to produce a coating with superior low emissivity and low visible reflectance, especially for use to reduce heat load in automobiles.Type: GrantFiled: April 4, 1988Date of Patent: February 6, 1990Assignee: PPG Industries, Inc.Inventor: James J. Finley
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Patent number: 4898791Abstract: In a solderable layer system in which a conductor layer which is partially covered with a layer of solder is applied to a support, the solder layer consists of an alloy in which a reducing agent is contained. The alloy is preferably brass.Type: GrantFiled: February 5, 1988Date of Patent: February 6, 1990Assignee: VDO Adolf Schindling AGInventor: Dieter Schurig
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Patent number: 4898790Abstract: A multiple-layer, high transmittance, low emissivity coated article which can be subjected to high temperature processing such as bending, annealing, tempering, laminating or glass welding as a result of primer layers comprising metal and metal oxide is disclosed.Type: GrantFiled: April 1, 1988Date of Patent: February 6, 1990Assignee: PPG Industries, Inc.Inventor: James J. Finley
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Patent number: 4891273Abstract: A multiple coated composite steel strip having an excellent corrosion (rust) resistance, weldability and paint adhesion, and thus useful for car bodies, comprises a steel strip substrate, a first metal coating layer, a second chlorate coating layer formed by an electrolytic chromate treatment method, containing 40 to 120 mg/m.sup.2 of chromium and having a content of Cr.sub.2 O.sub.3 of 45% by weight or more, and a third resinous coating layer comprising a homopolymer or copolymer of acrylic acid, methacrylic acid, acrylic acid ester or methacrylic acid ester and 15% to 40% of colloidal silica particles having a very small size of 1 to 12 m .mu.m.Type: GrantFiled: May 12, 1988Date of Patent: January 2, 1990Assignee: Nippon Steel CorporationInventors: Hisao Odashima, Yoshihiko Hirano, Teruyoshi Hiraoka
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Patent number: 4889775Abstract: The present invention relates to a highly corrosion resistant surface-treated steel plate. The steel plate of the invention comprises a zinc deposition or zinc alloy deposition film as the undercoat deposition layer, a chromate film formed on the undercoat deposition layer and a film of a resin composition formed on the chromate film. This resin composition comprises a substrate resin formed by adding at least one basic nitogen atom and at least two primary hydrogen groups to terminal of an epoxy resin, silica and sparingly water soluble Cr compound. The resin composition may comprise a polyisocyanate compound as the curing agent. Moreover, the resin composition may comprise a silane compound as the crosslinking agent for the substrate resin and silica.Type: GrantFiled: February 25, 1988Date of Patent: December 26, 1989Assignees: Nippon Kokan Kabushiki Kaisha, Kansai Paint Co., Ltd.Inventors: Takeshi Adaniya, Masaaki Yamashita, Takahiro Kubota, Akira Enatsu, Norio Nikaido, Yoshiaki Miyosawa, Tadashi Nishimoto
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Patent number: 4886712Abstract: The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greating improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof.The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.Type: GrantFiled: June 26, 1987Date of Patent: December 12, 1989Assignee: Nuova Italsider S.p.A.Inventors: Nazzareno Azzerri, Leonardo Giorgi
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Patent number: 4885215Abstract: An exterior stainless steel sheet is provided comprising a stainless steel substrate and a coating layer formed on one surface of the steel substrate from Al, Al alloy, Zn or Zn alloy to a thickness of 0.1 to 70 .mu.m, preferably 1 to 70 .mu.m. A Zn or Zn-Ni alloy plated stainless steel strip is prepared by degreasing a stainless steel strip, substantially activating the surface of the strip, and electroplating the strip in a zinc or zinc-nickel alloy plating bath at pH 3.5 or lower. During electroplating of one side, the other side of the strip not to be plated is covered with a protective film. A stainless steel sheet comprising a stainless steel substrate and a coating layer formed on one surface of the steel substrate from Zn or Zn alloy to a thickness of 0.1 to 50 .mu.m, preferably 1 to 50 .mu.m is useful in preparing welded pipes.Type: GrantFiled: September 29, 1987Date of Patent: December 5, 1989Assignee: Kawasaki Steel Corp.Inventors: Keiichi Yoshioka, Kenji Watanabe, Yasushi Kato
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Patent number: 4885213Abstract: A sprayed member which has a ceramic-sprayed layer formed on the surface of a parent material of an aluminum alloy through a sprayed bond layer. A diffusion layer occupies 20 to 50% of the entire interface between the bond layer and the parent material. The interface between the diffusion layer and the parent material and the interface between the bond layer and the parent material are finely roughened to have a height of several microns. The diffusion layer and the fine roughness are formed by preheating the surface of the parent material at a temperature ranging from 260.degree. to 500.degree. C. prior to spraying the parent material with a material for the bond layer so that they can together enhance the adherency between the bond layer and the parent material.Type: GrantFiled: April 28, 1988Date of Patent: December 5, 1989Assignee: Toyota Jidosha Kabushiki KaishaInventors: Noritaka Miyamoto, Miyuki Koujiya, Joji Miyake, Takashi Iomoda, Hidetoshi Ohsawa, Tetsuo Nagami
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Patent number: 4883721Abstract: A multi-layer of thin film for application to a transparent substrate such as glass provides excellent visible light transmission while controlling both near infra-red solar energy and far infra-red reflected energy. The film comprises a layer of sputtered zinc, tin, or bismuth oxide, a layer of sputtered silver or silver alloy, a layer of sputtered titanium or stainless steel and a final layer of zinc, tin, or bismuth oxide. The product exhibits a nominal visible light transmittance of 55% and a reflectance less than about 15% for incident light on the substrate (glass) side at visible light wavelengths and reflectance less than about 6% for incident light on the film side in the visible wavelengths. Emissivity is less than 0.15. A method of fabricating the product is also disclosed.Type: GrantFiled: July 24, 1987Date of Patent: November 28, 1989Assignee: Guardian Industries CorporationInventors: Raymond Nalepka, Russell Huffer