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| Number | Title | Issue Date |
| 7396446 | Magnesium anodisation methods This invention relates to a method of anodising magnesium material which includes anodising the magnesium while it is immersed in an aqueous electrolyte solution having a pH above 7, and in the presence of a phosphate, the electrolyte solution also containing a sequ... | 07/08/2008 |
| 7361626 | Supported catalyst The present invention relates to a Catalyst comprising a, preferably oxidic, core material, a shell of zinc oxide around said core material, and a catalytically active material in or on the shell, based on one or more of the metals cobalt, iron, ruthenium and/or nic... | 04/22/2008 |
| 6986838 | Nanomachined and micromachined electrodes for electrochemical devices A nanomachined and micromachined electrode (10) is disclosed that is produced by providing a layer of aluminum (11) positioned upon a conductive substrate (12), anodizing the layer of aluminum to produce a layer of aluminum oxide (13) hav... | 01/17/2006 |
| 6919012 | Method of making a composite article comprising a ceramic coating A ceramic coating is formed on a conductive article by immersing a first anodic electrode, including the conductive article, in an electrolyte comprising an aqueous solution of alkali metal hydroxide and an alkali metal silicate, providing a second cathodic electrod... | 07/19/2005 |
| 6916414 | Light metal anodization Using pulsed current and relatively low average voltages, articles containing light metals such as magnesium may be rapidly anodized to form protective surface coatings. The anodizing solutions employed may contain phosphate, permanganate, silicate, zirconate, vanad... | 07/12/2005 |
| 6875334 | Method of anodizing of magnesium and magnesium alloys and producing conductive layers on an anodized surface A method, a composition and a method for making the composition for anodizing metal surfaces, especially magnesium surfaces is disclosed. The composition is a basic aqueous solution including hydroxylamine, phosphate anions and nonionic surfactants. A complementary ... | 04/05/2005 |
| 6858126 | High capacitance anode and system and method for making same A method of producing electrodes for electrolytic capacitors by etching metal foil in a low pH etching electrolyte is disclosed. The low pH electrolyte is an aqueous solution, which comprises hydrochloric acid, glycerol, sodium perchlorate or perchloric acid, sodium... | 02/22/2005 |
| 6838297 | Nanostructure, electron emitting device, carbon nanotube device, and method of producing the same The invention provides a nanostructure including an anodized film including nanoholes. The anodized film is formed on a substrate having a surface including at least one material selected from the group consisting of semiconductors, noble metals, Mn, Fe, Co, Ni, Cu ... | 01/04/2005 |
| 6808615 | Surface mount aluminum capacitor having anode foil anodized in an aqueous phosphate solution Aluminum surface mount capacitors containing one or more anode foil coupons are initially anodized in an aqueous phosphate solution in order to produce an anodic oxide film having extreme resistance to hydration and attack by corrosive anions for the purpose of prod... | 10/26/2004 |
| 6797147 | Light metal anodization Using aqueous electrolytes containing complex fluorides or oxyfluorides such as fluorozirconates, fluorotitanates, and fluorosilicates, articles containing light metals such as magnesium and aluminum may be rapidly anodized to form protective surface coatings. White... | 09/28/2004 |
| 6365028 | Method for producing hard protection coatings on articles made of aluminum alloys This invention relates to the sphere of plasma electrolyte oxide coating of aluminium alloys. The method incorporates anode-cathode oxide coating in an alkaline electrolyte at a temperature of 15-50° C., using 50-60 Hz frequency alternating current. In t... | 04/02/2002 |
| 6238540 | Method for microplasma electrolytic processing of surfaces of electroconductive materials A method for microplasma electrolytic processing a surface of an electroconductive material, involves establishing an electrical circuit between this material, as a first electrode, and a counterelectrode, as a second electrode, by immersing the first ele... | 05/29/2001 |
| 6197178 | Method for forming ceramic coatings by micro-arc oxidation of reactive metals A process and apparatus for forming oxide coatings on bodies of aluminum and aluminum alloys are described. The process includes forming an electrolyte bath in an inert container. At least two reactive metal bodies are suspended in the bath. The bodies ar... | 03/06/2001 |
| 5775892 | Process for anodizing aluminum materials and application members thereof According to the present invention, an aluminum alloy containing silicon is anodized using an electrolyte including a compound containing an anion having complexing capability such as sodium hydrogenphosphate or tribasic sodium phosphate, a salt of an org... | 07/07/1998 |
| 5427678 | Composite oxide thin film The present invention provides a composite oxide thin film which is characterized in that said thin film is formed, by energizing a work electrode and an opposite electrode immersed in a solution containing reactive components, through the reaction betwee... | 06/27/1995 |
| 5069763 | Method of coating aluminum with vanadium oxides A method is provided for electrolytic coating of a rectifier metal with a hard, adherent, uniform and corrosion-resistant coating which predominates in vanadium oxides. A rectifier metal (anode) and a metal cathode are immersed in the electrolytic bath an... | 12/03/1991 |
| 4853093 | Aluminum or an aluminum alloy support material for use in offset printing plates There is disclosed a plate-, foil- or web-shaped support material for offset printing plates, made of mill-finished, mechanically and/or chemically or mechanically and electrochemically grained aluminum or an aluminum alloy, which has been anodized in aqu... | 08/01/1989 |
| 4833065 | Process for producing support for presensitized lithographic printing plate using alkaline electrolyte In a process for producing a support for a lithographic printing plate, at least one surface of an aluminum sheet is subjected to roughening treatment and subsequently to anodic oxidation treatment at a current density of at least 1 A/dm2 in an... | 05/23/1989 |
| 4715936 | Process for anodizing aluminum for an aluminum electrolytic capacitor An electrolyte capable of anodizing aluminum consists essentially of a solution of an amino acid having a pH of 5.5 to 8.5. The amino acid is preferably a 2-amino acid, more preferably a dicarboxylic acid, and specifically aspartic or glutamic acid. The e... | 12/29/1987 |
| 4439287 | Method for anodizing aluminum materials and aluminized parts Aluminum materials and aluminized parts are oxidatively anodized at a bath temperature of 0° to 15° C. and preferably, 0° to 10° C. to produce an anodized layer of aluminum oxide more than 4 microns thick, which is hard, abrasion-proof and can be stai... | 03/27/1984 |
| 4421612 | Process for the preparation of a dark-colored, wave-length selective oxide film on aluminum A dark-colored, wave-length selective oxide film on aluminum is prepared thereby that the metal subsequent to a cleaning treatment is submerged into a bath consisting of an aqueous solution having pH 8.9-10.9 and at a temperature of from 20° to 100° C. ... | 12/20/1983 |
| 4221640 | Method of treating a surface of an aluminum or aluminum alloy An aluminum or aluminum alloy is electrolyzed in an electrolytic bath composed of an aqueous solution containing at least one of hydroxides and salts of alkali or alkaline earth metal and further optionally including at least one substance capable of form... | 09/09/1980 |
| 4212685 | Protective and color receptive coating for aluminum The invention is for a process for providing a protective, color receptive coating over aluminum using chemical means without a requirement for the use of an electric current as in electrical anodizing. Absent conventional steps such as water rinses, the ... | 07/15/1980 |
| 4188270 | Process for electrolytically forming glossy film on articles of aluminum or alloy thereof A process for electrolytically treating an article of aluminum or alloy thereof to form a glossy film thereon, the process comprising the step of subjecting the article to electrolysis in an aqueous alkaline bath containing sodium phosphate and at least o... | 02/12/1980 |
| 3956082 | Anodizing bath for composite metal material composed of aluminum or aluminum alloy and different metal having a lower ionization tendency An electrolytic bath for a composite metal material composed of aluminum or aluminum alloy and metal different therefrom prepared by adding 0.3 to 12% by volume of hydrogen peroxide or 1 to 15% by weight of potassium ferricyanide to 0.1 to 4.0M aqueous so... | 05/11/1976 |
