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| Number | Title | Issue Date |
| 8323472 | Method of surface treatment of metal base material The method of surface treatment, as applied onto a metal base material, of the present invention includes a reduction treatment step of reduction-treating the oxide film formed on the metal base material and an oxidation treatment step of oxidation-treating the oxid... | 12/04/2012 |
| 7422629 | Nonsludging zinc phosphating composition and process Electrolysis using a suitable electrolyte provides a completely nonsludging zinc phosphate conversion coating process that produces a high quality conversion coating in a very short time. The suitable electrolyte contains at least water, dissolved nitric acid, and d... | 09/09/2008 |
| 7296517 | Roll for metal rolling, and support for lithographic printing plate A roll for metal rolling has a roughened surface formed by an electrolytic treatment in an electrolytic solution while using the roll as an anode. When the roll is used to emboss an aluminum plate, it is possible to obtain an aluminum plate with an uneven structure ... | 11/20/2007 |
| 7185055 | Chat system and record medium readable by chat system A server and plural terminal devices form a network. Messages are transferred among the terminal devices via a plurality of virtual communication spaces formed on the network. The transmitted and received messages are displayed on a display device of each terminal d... | 02/27/2007 |
| 7144637 | Multilayer, corrosion-resistant finish and method The present invention provides a black, chrome-free, multilayer corrosion protection finish designed to meet extended corrosion properties. This corrosion-resistant finish is engineered to meet a minimum of 500 salt spray testing hours to white corrosion, and 1500 s... | 12/05/2006 |
| 7011738 | Activation of a cathode The present invention relates to a method for activation of a cathode comprising at least a cathode substrate wherein the cathode is cleaned by means of an acid, the cleaned cathode is coated with at least one electrocatalytic coating solution, drying the coated cat... | 03/14/2006 |
| 6960370 | Methods of forming medical devices Medical devices that include oxidizable portions can be plated after a two step activation process that includes successive applications of two aqueous solutions of ammonium bifluoride. Once plated, such materials can be soldered using conventional solders and fluxe... | 11/01/2005 |
| 6416648 | Method of manufacturing steel sheets coated with Zn-Fe alloy The present invention relates to a method to manufacture steel sheets coated with Zn--Fe alloy with an excellent corrosion resistance used in producing a body frame and a chassis of an automobile under optimal coating conditions by adjusting the temperatu... | 07/09/2002 |
| 6290836 | Electrodes An electrode (1) having an active surface for contacting an electrolyte. The electrode (1) comprises first and second metallic materials (2, 3) arranged to provide a number of first metallic material to second metallic material interfaces at the active su... | 09/18/2001 |
| 6174426 | Tin-plated steel with adhesion promoter A method is provided for enhancing the adhesion of organic polymer coatings to electrolytically passivated (CDC) tin-plated steel strip. The method includes applying a solution comprising 0.1 to 7 percent of an adhesion promoter to the electrolytically ti... | 01/16/2001 |
| 6146735 | Information storage device having coated metal hub A mini-floppy disk or like information storage device is comprised of a circle of data storage medium having a central metal hub. In use, the hub is contacted with and driven by a magnetized spindle. The hub comprises a ferromagnetic substrate and a metal... | 11/14/2000 |
| 6146516 | Method and device for the repair and/or touch-up of small surface flaws in a press plate or an endless band for surface-embossing of plastic-coated wooden or laminated panels A method and a device are described for the repair and/or touch-up of small surface flaws in large press plates or endless bands of sheet metal, especially steel sheet, having a structured metal coating and a hard-chrome plating for surface-embossing plas... | 11/14/2000 |
| 6090254 | Process for coating metallic molding articles A process for coating a metallic molding article comprising transporting said article by conveyer means continuously and serially through a degreasing stage (1), a first water rinsing stage (2), a surface conditioning stage (3), a chemical conversion trea... | 07/18/2000 |
| 6066403 | Metals having phosphate protective films Novel metallic bodies are provided which present an essentially oxide-free surface protected by phosphate groups which directly and chemically bond to surface metal atoms. Metal surfaces such as Al or Fe can be protected by deposition of a phosphate film ... | 05/23/2000 |
| 5630933 | Processes involving metal hydrides Metal hydrides are activated by an electrochemical procedure. In this procedure, a bulk sample of the corresponding metal is immersed in an aqueous electrolyte and contacted by a cathode. Current passed through the aqueous electrolyte causes electrolysis ... | 05/20/1997 |
| 5618401 | Inner-shield material to be attached inside a color cathode ray tube and manufacturing method thereof A method of making, for cathode ray tubes and the like, an inner shield material that has superior magnetic characteristics and rust resistance. The method does not require conventional blackening processes. Sheet steel or strip is nickel-plated with a ni... | 04/08/1997 |
| 5546215 | Optical scanning apparatus An optical scanning apparatus is disclosed which comprises: a polygonal mirror for receiving a laser beam modulated by an image signal and for repetitively deflecting the laser beam by every line of the image signal; a single lens having spherical surface... | 08/13/1996 |
| 5476581 | Method of producing a weapon barrel having a wear-resistant inner coating A method of producing a weapon barrel (1) having a wear-resistant inner coating (10) applied by an electrolytic method. To enable the application of a relatively thick protective layer to the inner wall or surface of a large-caliber weapon barrel (1), in ... | 12/19/1995 |
| 5395510 | Efficient preparation of blackened steel strip A blackened steel strip having improved blackness is produced in an efficient manner by anodizing a zinc alloy-plated steel strip in a solution containing 5 to 100 g/l of ClO3- and 10 to 300 g/l of SO42- at pH... | 03/07/1995 |
| 5348639 | Surface treatment for iron-based permanent magnet including rare-earth element A surface treatment for a R-TM-X type of permanent magnet comprising the steps: Etching the magnet with nitric acid having a concentration of 0.2 to 10 vol %, then etching the magnet with a mixture of oxygenated water having a hydrogen peroxide concentrat... | 09/20/1994 |
| 5286366 | Surface treatment for iron-based permanent magnet including rare-earth element A magnetically anisotropic magnet substrate is coated with a triple layer of nickel plating preferably followed by a chromate layer. The layer of nickel plating includes an inner layer of a non-bright nickel plating, followed by an intermediate nickel-str... | 02/15/1994 |
| 5246565 | High adherence copper plating process A process for applying copper to a substrate of aluminum or steel by electrodeposition and for preparing an aluminum or steel substrate for electrodeposition of copper. Practice of the invention provides good adhesion of the copper layer to the substrate.... | 09/21/1993 |
| 5240783 | Steel plate for the outside of automobile bodies electroplated with a zinc alloy and a manufacturing method therefor Steel plate for automobile bodies and a method for manufacturing the steel plate are disclosed, the steel plate containing 0.02~0.03% of P as an alloying element with a total amount of Cu, Ni, Cr, and Mo being more than 0. 01% but less than 0.08 weight % ... | 08/31/1993 |
| 5209988 | Steel plate for the outside of automobile bodies electroplated with a zinc alloy and a manufacturing method therefor Steel plate for automobile bodies and a method for manufacturing the steel plate are disclosed, the steel plate containing 0.02~0.03% of P as an alloying element with a total amount of Cu, Ni, Cr, and Mo being more than 0.01% but less than 0.08 weight % a... | 05/11/1993 |
| 5151167 | Coins coated with nickel, copper and nickel and process for making such coins This invention overcomes problems such as pinholes and blisters in making plated coin blanks and similar articles. A ferrous metal blank is electroplated with a strike of nickel, following which a coating of copper is applied at an initial low current den... | 09/29/1992 |
| 5094730 | Method for forming a metallic coating on steel pipes A method of applying a metallic coating to metallic sealing and/or threaded regions of steel pipes which are under high pressure per unit of surface by a pretreatment of the surface to be coated which consists of a cleaning and degreasing and an electroly... | 03/10/1992 |
| 5084145 | Method for manufacturing one-sided electroplated steel sheet In a method for manufacturing a one-sided electroplated steel sheet by electroplating of a steel sheet in an acidic bath, an adsorption film-forming organic inhibitor is added to either (a) the electroplating solution or (b) a pickling solution used prior... | 01/28/1992 |
| 5013411 | Method for producing a corrosion resistant rare earth-containing magnet Corrosion-resistant rare earth magnets and a method for their manufacture, said magnets containing at least one rare earth element in an amount of 5 to 40 weight %, Fe in an amount of 50 to 90 weight %, Co in an amount of 0 to 15 wt %, B in an amount of 0... | 05/07/1991 |
| 5000828 | Process for producing one-side electrogalvanized steel sheet with distinguished susceptibility to phosphate salt treatment and distinguished appearance on the non-electrogalvanized side A one-side electrogalvanized steel sheet with a distinguished susceptibility to a phosphate salt treatment and a distinguished appearance on the non-electrogalvanized side is produced by subjecting the non-electrogalvanized side of a steel sheet after one... | 03/19/1991 |
| 4969980 | Process for electroplating stainless steel strips with zinc or zinc-nickel alloy 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 μm, preferably 1 to 70 μm. A Zn or Zn-Ni ... | 11/13/1990 |
| 4966660 | Process for electrodeposition of aluminum on metal sheet In electroplating aluminum on a metal sheet with use of a molten salt bath comprised of from 40 to 80 mol % of an aluminum halide and from 20 to 60 mol % of an N-alkylpyridinium halide, or a molten salt bath obtained by mixing an organic solvent in said f... | 10/30/1990 |
| 4966659 | Method for molten salt electroplating of steel A method and apparatus for molten salt electroplating a steel member are disclosed, in which the surface of the steel member is activated by anodic treatment and the molten salt electroplating is performed on the activated surface of said steel member.... | 10/30/1990 |
| 4886585 | Electrolytic process for applying thin silver coatings to stainless steel, particularly in bearing races In an electrolytic process of silvering stainless steel parts having a hardness of at least 58 HRc, the parts are subjected to degreasing with a solvent and by electrolysis in an alkaline atmosphere before undergoing electrolytic attack in an acid atmosph... | 12/12/1989 |
| 4859289 | Process for producing a metal wire useful as rubber product reinforcement A process for producing a metal wire for use as a reinforcement of rubber products, in which the step of drawing a steel wire is preceded by a preliminary treatment that includes the step of smoothing the surface of the steel wire by electropolishing and ... | 08/22/1989 |
| 4859287 | Method for producing colored stainless steel stock A method for producing a chemically colored stainless steel stock widely used as building material or the like is characterized in that a stainless steel stock is subjected to alternating current electrolysis or dipped and then subjected to an electrolyti... | 08/22/1989 |
| 4846939 | Method for producing a grain-oriented electrical steel sheet having an ultra low watt loss The heat resistant subdivision of magnetic domains of a grain-oriented electrical steel sheet for improving the watt loss characterized by forming intruders therein is improved by pickling the steel sheet prior to the electroplating of the intrudable mean... | 07/11/1989 |
| 4731166 | Method of producing an adherent, smooth deposit of chromium on a nodular iron substrate An adherent, smooth electrodeposit of chromium is produced on a nodular cast iron substrate from a chromium plating bath. The desired deposit is provided herein by activating the substrate, subjecting the activated substrate to an ultrasonic treatment, an... | 03/15/1988 |
| 4717456 | Two-step electrolytic activation process for chromium electrodeposition The two-step electrolytic activation process comprises anodic treatment in a polarizing solution followed sequentially by a cathodic treatment in an electrolyte solution. The activation process is useful for cast iron substrates to enable electrodepositio... | 01/05/1988 |
| 4711705 | Activation composition and method for forming adherent chromium electrodeposits on ferrous metal substrates from high energy efficient baths An activation composition and method for producing chromium electrodeposits having excellent adhesion on both soft and hardened ferrous substrates from high energy efficient chromium baths is described. The activation composition is a solution containing ... | 12/08/1987 |
| 4668348 | Method for forming adherent, bright, smooth and hard chromium electrodeposits on ferrous metal substrates from high energy efficient chromium baths An activation solution is provided for forming adherent chromium electrodeposits on metal substrates, preferably ferrous metals such as cast iron, from high energy efficient chromium baths. The solution suitably is a mixture of sulfuric acid, added sulfat... | 05/26/1987 |
