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| Number | Title | Issue Date |
| 7569132 | Process for anodically coating an aluminum substrate with ceramic oxides prior to polytetrafluoroethylene or silicone coating An article of manufacture and a process for making the article by the anodization of aluminum and aluminum alloy workpieces to provide corrosion-, heat- and abrasion-resistant ceramic coatings comprising titanium and/or zirconium oxides, and the subsequent coating o... | 08/04/2009 |
| 7560015 | Process for electrolytic coating of a strand casting mould Apparatus and method for electrolytic coating of a mould, the internal surfaces of which demarcate a mould cavity, with a coating material for the purpose of achieving or re-achieving intended mould cavity dimensions. The mould, as the cathode, and an anode position... | 07/14/2009 |
| 7364648 | Electromechanical reduction of a diazonium salt to modify the surface of a metallic material The invention concerns a metal material with a surface which is modified by bonding an aromatic group, optionally substituted by a functional group, on the surface. In one embodiment, an aromatic group is attached to the surface by electrochemical reduction of a dia... | 04/29/2008 |
| 7291566 | Barrier layer for a processing element and a method of forming the same In order to mitigate erosion of exposed processing elements in a processing system by the process and any subsequent contamination of the substrate in the processing system, processing elements exposed to the process are coated with a protective barrier. The protect... | 11/06/2007 |
| 7229545 | Process for the coating for metallic implant materials A biomimetically produced bone-analogous coating, comprising organic and inorganic main constituents, is suitable for coating metallic implant materials of any desired surfaces. The coating comprises a collagen matrix mineralized with calcium phosphate. ... | 06/12/2007 |
| 7187566 | Three-phase rectifier A capacitor-input type three-phase rectification circuit comprises a three-phase AC power supply (1), a diode rectifier circuit (4), and a low-frequency filter connected between the three-phase AC power supply (1) and the diode rectification cir... | 03/06/2007 |
| 7186327 | Method and apparatus for scaling control and in-situ cathodic protection A method and apparatus wherein an electrically conductive element is placed inside a previously installed metallic water vessel such as a supply pipe or well. A direct current voltage is then applied between the element and the conductive wall of the vessel. The con... | 03/06/2007 |
| 7153179 | Oxidation-protected metallic foil and method An electrical lead assembly for devices such as electrical lamps having a metallic foil for providing an electrically conducting path through a hermetic seal formed by pinch sealing a vitreous material. The metallic foil includes an oxidation-inhibiting coating of s... | 12/26/2006 |
| 7029566 | Process of forming HA/ZrOcomplex coating on Co—Cr—Mo alloy In a process of forming a HA/ZrO2 complex coating on a Co—Cr—Mo alloy substrate, the substrate is subjected to electrolytic deposition respectively in a ZrO(NO3)2 bath and a mixed solution of Ca(NO3)2.4H | 04/18/2006 |
| 7014661 | Transcutaneous prosthesis A transcutaneous prosthesis is disclosed comprising a first component (1) shaped for implantation into a bone (2), a second component (4) intended for location between the bone (2) and the skin, and a third component (5) intended f... | 03/21/2006 |
| 6974532 | Method for producing adherent coatings of calcium phosphate phases on titanium and titanium alloy substrates by electrochemical deposition A method for forming a highly adherent coating of a desired calcium phosphate phase on titanium-based substrates for use as orthopedic and dental implants. The calcium phosphate phase coating is electrochemically deposited onto the substrate from a metastable calciu... | 12/13/2005 |
| 6927121 | Method for manufacturing ferroelectric random access memory capacitor A method for manufacturing an FeRAM capacitor is employed to enhance an adhesive property between a dielectric layer and a first bottom electrode of iridium. The method including the steps of: preparing an active matrix including a semiconductor substrate, a transis... | 08/09/2005 |
| 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 |
| 6893551 | Process for forming coatings on metallic bodies and an apparatus for carrying out the process A process for forming oxide based dense ceramic composite coatings on reactive metal and allow bodies involves suspension of at least two reactive metal or alloy bodies in a non-metallic, non-conducting, non-reactive chamber in such a way that it causes either parti... | 05/17/2005 |
| 6808613 | Oxidizing electrolytic method for obtaining a ceramic coating at the surface of a metal Process for obtaining a ceramic coating on the surface of a metal having semiconducting properties, such as aluminium, titanium, magnesium, hafnium, zirconium and their alloys, by a physico-chemical transformation reaction of the treated metal. This process consists... | 10/26/2004 |
| 6783657 | Systems and methods for the electrolytic removal of metals from substrates The present invention provides methods and systems for the electrolytic removal of platinum and/or other of the Group 8-11 metals from substrates. ... | 08/31/2004 |
| 6758956 | Method for darkening a superficial layer which contains zinc and which is of a material piece The invention relates to a method for darkening a superficial layer of a workpiece which contains zinc by anodic oxidation. The workpiece is oxidized in a soaking bath containing an aqueous solution comprised of a hydroxide and of a nitrate. The anodic oxidation may... | 07/06/2004 |
| 6755955 | Catalytic converter and method for producing a catalytic converter A method for producing a catalytic converter includes depositing a layer of catalytically active metallic material by electrochemical deposition on a planar substrate by immersing the substrate in an electrolyte that contains the catalytically active metallic materi... | 06/29/2004 |
| 6716333 | Spinning rotor A hard, wear-resistant ceramic surface is applied to spinning rotor cups in an electrolytic bath on which is imposed a shaped-wave electric current. A special electrode has been designed to facilitate application of the coating to the unique shape of a spinning roto... | 04/06/2004 |
| 6620306 | Method of manufacturing electrode foil for aluminum electrolytic capacitor and AC power supply unit A method of manufacturing electrode foil for aluminum electrolytic capacitors and an AC power supply unit used therewith are disclosed. An etching is performed on an aluminum foil immersed in an electrolytic solution by applying an AC current to a pair of... | 09/16/2003 |
| 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 |
| 5723038 | Process for producing a gradient coating made of calcium phosphate phases and metal oxide phase on metallic implants The invention concerns a process for producing a gradient coating of calcium phosphat phases and metal oxide phases on metallic implants, in particular made of titanium or titanium alloys, for use as dental, jaw or joint implants. A solution containing ca... | 03/03/1998 |
| 5620582 | Energy-saving process for architectural anodizing A method for low-voltage architectural anodizing of aluminum and aluminum alloy articles by using a direct anodizing current ranging for different machines from 10 kA up to 50 kA and more, plus a superimposed alternating current of industrial frequency. T... | 04/15/1997 |
| 5616229 | Process for coating metals The invention provides a process for forming a ceramic coating on a valve metal selected from the group consisting of aluminum, zirconium, titanium, hafnium and alloys of these metals. The process comprises the steps of (a) immersing the metal as an elect... | 04/01/1997 |
| 5612146 | Soft-magnetic multilayer thin film for use in a thin-film magnetic head and a method of manufacturing the same A soft-magnetic multilayer thin film produced by electroplating, wherein an anode-dissolution process is effected by intermittently applying a reverse d.c. bias current with respect to the plating-forward current. Involving the anode-dissolution process a... | 03/18/1997 |
| 5605615 | Method and apparatus for plating metals A method and apparatus for plating metals which delivers a voltage pulse with the possibility of a widely varying current magnitude characteristic to a plating electrode and an object having a large electrical reactance in terms of a parallel resistance a... | 02/25/1997 |
| 5595638 | Method for manufacturing a semiconductor device utilizing an anodic oxidation An anodic oxide containing impurities at a low concentration and thereby improved in film quality, and a process for fabricating the same. The process comprises increasing the current between a metallic thin film and a cathode until a voltage therebetween... | 01/21/1997 |
| 5560752 | Process for activation of metal hydrides Metals useful in the formation of hydrides for applications such as batteries are advantageously activated by hydriding/dehydriding process. This process involves repeatedly stepping the potential of metal/metal hydride electrodes in electrochemical cells... | 10/01/1996 |
| 5122237 | High molecular humidity sensor and manufacturing method thereof by electrochemical method A high molecular humidity sensor and manufacturing method thereof in which polypyrrole being of conductive high molecule is electrochemically polymerized and then reduced whereby ionic conductive property is given go that humidity sensibility becomes exce... | 06/16/1992 |
| 5030331 | Process for preparing iridium oxide film The present invention provides a process for preparing an iridium oxide film which comprises evaporating iridium and carbon by electron beam or sputtering to prepare an iridium-carbon composite film, heating said composite film in an oxidizing atmosphere ... | 07/09/1991 |
| 4915799 | Electrolytic coloring method for chromium alloy In this electrolytic coloring method for chromium alloy, first, an aqueous solution containing, for example, chromic acid of 250 g/l as a main material and, for example, sulfuric acid of 490 g/l as an electrolyte is prepared. Then, in this aqueous solutio... | 04/10/1990 |
| 4879791 | Method of producing a pitted roll for an offset litho printing press A method of producing a pitted roll for an offset litho press inking unit, more especially as part of a short inking unit, comprising the application of a dual coating layer of which the inner layer is formed of a material such as copper with a high affin... | 11/14/1989 |
| 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 |
| 4808280 | Method for electrolytic coloring of aluminim or aluminum alloys A method for electrolytic coloring of anodized aluminum or aluminum alloys in an electrolyte containing metal salts is disclosed, in which the aluminum or aluminum alloy is preliminarily treated in an electrolyte by applying a voltage of substantially pos... | 02/28/1989 |
| 4798656 | Process for electrolytically dyeing an anodic oxide layer on aluminum or aluminum alloys In processes for electrolytically dyeing anodic oxide layers on aluminum or aluminum alloys with direct or alternating current in electrolytes containing metal salts, high requirements are imposed on the uniformity of the dyeing and on the dyeing rate. Th... | 01/17/1989 |
| 4704196 | Process for surface treatment of carbon fiber A process for the surface treatment of carbon fiber tows each consisting of a multiplicity of filaments, comprises treating the tows by electrolytic oxidation, using each tow as a positive electrode and applying an electric current in the form of pulses. ... | 11/03/1987 |
| 4671858 | Method for making anode foil for an aluminum electrolytic capacitor The present invention relates, in an aluminum electrolytic capacitor using aluminum foil as its electrode, to a method for producing safely an anode foil having a high surface-area-enlarging factor at a low cost, by adding anions, which have oxide film-fo... | 06/09/1987 |
| 4632735 | Process for the electrolytic coloring of aluminum or aluminum alloys A process for the electrolytic coloring of aluminum or aluminum alloys consisting of subjecting the previously anodized piece to two electrolytic treatments in a coloring solution (solution of soluble metal salts). The first consists of an alternating cur... | 12/30/1986 |
| 4597837 | Method and apparatus for electrolytic treatment A method and apparatus for electrolytic treatment employing graphite electrodes wherein an asymmetrical waveform alternating current is applied to the electrodes to subject a metal web to a continuous electrolytic treatment. A graphite electrode in a trea... | 07/01/1986 |
