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| Number | Title | Issue Date |
| 7204925 | Structure and method of preventing electrolytic corrosion for magnesium alloy member A structure and a method of preventing electrolytic corrosion for a magnesium alloy member (20), the structure wherein a first coated layer (11) formed by electro deposition and a second coated layer (12) formed by distributing PTFE particles on... | 04/17/2007 |
| 7195796 | Polymeric coating formulations and steel substrate composites A process is provided for making a composite work article suitable for fabricating rigid sheet metal can components. A steel sheet having first and second surfaces is pre-treated to enhance reception and retention of a multi-layer polymer coating on the pre-treated ... | 03/27/2007 |
| 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 |
| 7014749 | Electrolytic deposition of coatings for prosthetic metals and alloys An article coated with an electrolytically deposited bio-compatible composite layer useful as an internal prosthetic device is disclosed. The bio-compatible composite coating that is electrolytically deposited onto the article comprises hydroxyapatite and chitosan. ... | 03/21/2006 |
| 6951603 | Method of producing a conductive structured polymer film A two-layered anode (1′) has a lower layer (2) including a non-conductive carrier material to which a conductive electrode layer (3′) is applied. Non-conductive areas, formed by partial removal of the electrode layer, have a predetermined st... | 10/04/2005 |
| 6905587 | Method for enhancing the solderability of a surface A method for enhancing the solderability of a metallic surface is disclosed where the metallic surface is plated with an immersion silver plate prior to soldering, which immersion silver plate is treated with an additive selected from the group consisting of fatty a... | 06/14/2005 |
| 6875471 | Metallization of polymer parts for painting The quality of painted surfaces of polymeric articles is improved by depositing a coating of a metal such as zinc or zinc alloy on the surface of the article to be painted. For example, zinc is electrodeposited on a conductive surface of the article. The metal coate... | 04/05/2005 |
| 6872294 | Metallization of polymer composite parts for painting The quality of painted surfaces of polymer composites is improved by first forming an electroless metal coating on the molded surface of the composite and then electroplating a coating of zinc or zinc alloy on the metallized composite surface. The “galvanized” c... | 03/29/2005 |
| 6811674 | Palladium plating solution The present invention provides a palladium plating solution comprising at least 1 to 60 g/L, in terms of the amount of palladium, of a soluble palladium salt and 0.1 to 300 g/L of a sulfamic acid or its salt, the palladium plating solution being substantially free f... | 11/02/2004 |
| 6811675 | Apparatus and method for electrolytically depositing copper on a semiconductor workpiece This invention employs a novel approach to the copper metallization of a workpiece, such as a semiconductor workpiece. In accordance with the invention, an alkaline electrolytic copper bath is used to electroplate copper onto a seed layer, electroplate copper direct... | 11/02/2004 |
| 6783653 | Solar selective absorption coatings A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for in... | 08/31/2004 |
| 6767445 | Method for the manufacture of printed circuit boards with integral plated resistors The present invention is a process for manufacturing resistors integral with the printed circuit board by plating the resistors onto the insulative substrate. The invention uses a mask during the activation step so as to selectively activate only selected portions o... | 07/27/2004 |
| 6755957 | Method of plating for filling via holes A method of plating for filling via holes, in which each via hole is formed in an insulation layer covering a substrate so as to expose, at its bottom, part of a conductor layer located on the substrate. A copper film is formed on the top surface of the insulation l... | 06/29/2004 |
| 6632342 | Methods of fabricating a microstructure array In a method of fabricating an array of microstructures, a substrate with an electrically-conductive portion is provided, an insulating mask layer is formed on the electrically-conductive portion of the substrate, a plurality of openings are formed in the ... | 10/14/2003 |
| 6420053 | Articles having a colored metallic coating with special properties An article includes a bi-colored metallic coating electrodeposited directly on a metallic cathode, such that a planar surface of the coating exhibits a visual first color when viewed from a first angle to the surface and a visual second and different colo... | 07/16/2002 |
| 6254979 | Low friction electrical terminals A low friction, low contact resistance coating for electrical terminal members, especially members made of copper base alloys and low carbon steel alloys and plastics, is formed of a coarse electroplate of tin or silver characterized by grains having an a... | 07/03/2001 |
| 6242105 | Process for coating metallic parts and metallic product thus coated Before the application of an external coating having a base of polyester or epoxy resin, or of a mixture of the two by spraying with an electrostatic spray gun, the parts to be coated are subjected to an initial zinc coating treatment by electrolytic proc... | 06/05/2001 |
| 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 |
| 6149790 | Method of making iron-electroplated aluminum materials A method for making an aluminium material which is electroplated on its aluminum or aluminium alloy base with iron or an iron alloy containing 2-20 weight % of chromium, and which can be utilized as a new structural or functional material in various indus... | 11/21/2000 |
| 5897762 | Method for coloring tool bit A method for coloring tool bits includes cutting a beam having a hexagonal cross section into a number of segments. The segments are electroplated for forming an outer layer on the segments. The segments each have one or two of the ends machined to form a... | 04/27/1999 |
| 5700362 | Method of treating copper foil for printed circuits A copper foil for printed circuits of which a shiny side has resin dust resistance, excels in heat discoloration resistance and rust preventiveness, and does not adversely affect the solderability and resist adhesion, and a method of treating the surface ... | 12/23/1997 |
| 5658611 | Surface protection material for printed circuit board and process of forming surface protection films The surface protection material for printed circuit boards disclosed is one in which a compound having a benzimidazole derivative as an effective component is adjusted to pH range from 1 to 5 with a salt-forming acid and which is an aqueous solution whose... | 08/19/1997 |
| 5639515 | Method for post-treatment of plated steel sheet for soldering Electroplated steel sheet suitable for soldering is provided herein by coating the plated steel sheet with a post-treatment solution in the range of 0.02 to 2 μm in dry thickness. The post-treatment solution contains from 2 to 100 g/l of at least one wat... | 06/17/1997 |
| 5480536 | Corrosion-inhibited iron-based members and method of producing the same A corrodible iron-based work such as a cylinder rod is subjected to hard chrome plating, heat-treatment by high frequency heating or baking at a temperature of not less than 150° C. (e.g. 170° to 600° C.), resin impregnation treatment and finish buffin... | 01/02/1996 |
| 5427677 | Flux for reflowing tinplate An improved process for reflowing tinplate by treating a matte finish of tinplate with a flux, and reflowing the fluxed matte tinplate to produce bright tinplate, wherein the flux is a naphthalenesulfonic compound, preferably having the a naphthalene ring... | 06/27/1995 |
| 5362374 | Method for making decorative stickers The method for making a decorative sticker includes the steps of (a) providing a polyester (trade name: Tetoron) base film which has a top surface and a bottom surface, (b) applying a metal coating on the polyester base film by electroplating so that the ... | 11/08/1994 |
| 5356528 | Copper foil for printed circuits and method of producing same A copper foil for printed circuits having a rust-preventive and heat-discoloration resistant coat, comprising a first layer of zinc or an alloy or a compound or a composition including zinc mainly, and a second layer including a silane coupling agent and ... | 10/18/1994 |
| 5298149 | Method for making a tin-plated steel sheet with a chromium bilayer and a copolyester resin laminate A copolyester film was laminated onto a steel sheet, this sheet having double layers consisting of a lower layer of metallic chromium and an upper layer of hydrated chromium oxide on a tin plated steel sheet in which 5 to 40% of the surface of the steel s... | 03/29/1994 |
| 5284711 | Method for forming a fluororesin film and articles having a fluororesin film formed by the method A method for forming a fluororesin film on a metallic substrate is described, which method comprising forming a chromium oxide film on at least one side of a metallic substrate and then forming a fluororesin film on the chromium oxide film. By this, good ... | 02/08/1994 |
| 5259937 | Process for forming colorless chromate coating film on bright aluminum wheel A colorless chromate coating film is formed on a bright aluminum wheel by subjecting the surface of an aluminum wheel to a cathodic electrolytic treatment in an acidic aqueous solution containing not less than 2 g/l of hexavalent chromium ions, 20 to 2,00... | 11/09/1993 |
| 5217599 | Bonding of polyimide film Disclosed is a method for electroplating a metal sheet adapted for being used in electronic packaging material, such as printed circuit boards. Bismaleimide and its derivative are added into the plated solution so as to form insoluble particles of bismale... | 06/08/1993 |
| 5106473 | Process for metallizing a through-hole board A process is provided for metallizing the hole-wall surface of a through-hole provided in a printed circuit board precursor. In an initial step, the hole-wall surface is pre-treated with an oxidizing agent which micro-roughens it. An electro-conductive po... | 04/21/1992 |
| 5085743 | Electrode for current-limited cell, cell including the electrode method for using the cell and a method of making the electrode The gas-sensing electrodes prepared according to this invention are specifically designed for cells which operate in a current-limited mode, i.e. at current densities well below 20 mA/cm2. Such cells are particularly useful to measure or detect... | 02/04/1992 |
| 5084358 | Composite-coated flat-rolled sheet metal manufacture and product Composite-coated flat-rolled steel, product, method of manufacture and method of fabrication in which single or double-reduced low-carbon steel, after surface preparation, is flash-coated with tin (about 0.05 #/bb) which is alloyed with the base metal. Di... | 01/28/1992 |
| 5059455 | Method for galvanizing perforated steel sheet A process for producing a galvanized perforated steel sheet material is described. A fully processed, unfinished sheet steel material is perforated to provide an area or areas of holes therein. The sheet material is then temper rolled to force any burrs f... | 10/22/1991 |
| 5032236 | Process for producing a surface-blackened steel sheet A surface-blackened steel sheet is produced by electrolyzing a steel sheet at a cathode in an acidic aqueous solution containing Zn2+, at least one of Fe2+, Co2+ and Ni2+, a film-improving ion consisting of at ... | 07/16/1991 |
| 5000826 | Method of joining metal member to resin member A method of firmly joining a metal member developed by electroforming to a resin member. A metal member having a roughened, sponge-like surface is formed by electroforming on an electroform matrix. Then, a resin such as epoxy is applied thereto to develop... | 03/19/1991 |
| 4975337 | Multi-layer corrosion resistant coating for fasteners and method of making A corrosion resistant coating and process comprises the following layers applied in sequence over a ferrous metal substrate: a micro-throwing nickel-zinc alloy plating; an optional galvanically protective zinc metal plating; a zinc-nickel alloy plating co... | 12/04/1990 |
| 4968391 | Process for the preparation of a black surface-treated steel sheet 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/m2 on the surface of the steel sheet or plated s... | 11/06/1990 |
| 4915985 | Process for forming articles of filled intrinsically conductive polymers A method of fabricating an electrode which comprises an intimate mixture of finely divided electroactive material in a matrix composed of a conjugated backbone polymer which comprises the steps of: derivatizing the surface of finely divided alkali-metal a... | 04/10/1990 |
