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| Number | Title | Issue Date |
| 5437777 | Apparatus for forming a metal wiring pattern of semiconductor devices A plating apparatus for forming a wiring pattern on a surface of a semiconductor wafer by causing a plating liquid into contact with the surface of the semiconductor wafer, comprises a storage tank storing and heating a plating liquid, a plating tank prov... | 08/01/1995 |
| 5316650 | Electroforming of metallic glasses for dental applications In a process of electroforming a metal to produce a dental prosthesis, the improvement comprising employing as the metal a metallic glass alloy such as cobalt and phosphorus containing 8-30% by weight of phosphorus. The electrolytic bath comprises: 15-300... | 05/31/1994 |
| 5304297 | Reducing agent regeneration system A system is provided for regenerating reducing agents used in ancillary chemical or electrochemical processes such as restoring solderability of electronic components. The system includes a cathode, an anode, and an electrolyte system that is separated by... | 04/19/1994 |
| 5290425 | Organic solvent electrolyte for plating film of R2 T14 B intermetallic compound permanent magnet An organic solvent electrolyte is provided for electrolytically forming a plating film on the surface of a R2 T14 B intermetallic compound permanent magnet. The organic solvent electrolyte comprises a metallic salt including at least... | 03/01/1994 |
| 5290422 | Process for applying silver-graphite dispersion electrodeposits A process for applying silver-graphite dispersion electrodeposits from an electrolyte with a conducting salt that is free of free cyanide. The process facilitates working at relatively high current densities to achieve high speed plating.... | 03/01/1994 |
| 5284571 | Method of making electrodes for electrochemical cells and electrodes made thereby The method of the invention deposits positively charged metal species, preferably platinum-amine, at sites where the negatively charged sulfonic acid groups of the SPE are in contact with carbon. Then an electrochemical reaction causes formation of elemen... | 02/08/1994 |
| 5282955 | Electrically conductive polymer composition, method of making same and device incorporating same The disclosure relates, inter alia, to a composition and, a method of making the composition. The composition comprises an electrically conductive polymer having a porous structure and a compound formed in situ and coating at least a portion of the surfac... | 02/01/1994 |
| 5281325 | Uniform electroplating of printed circuit boards A method and apparatus for the uniform electroplating of printed circuit boards is described. At least one non conductive apertured mask covers selected areas of the electroactive surface of the anode or cathode electrode, whereby to establish substantial... | 01/25/1994 |
| 5279725 | Apparatus and method for electroplating a workpiece An apparatus and method for electroplating a graphite-epoxy workpiece in-situ. An electroplating assembly includes a rigid base that is retained a fixed distance about the surface region by insulated standoff legs. A flexible vacuum bag is coupled to the ... | 01/18/1994 |
| 5277785 | Method and apparatus for depositing hard chrome coatings by brush plating Thick layers of hard dense chromium coatings are formed on metal substrates by an electrolytic brush plating operation in which a lead-tin electrode having a porous polypropylene felt topped by an polypropylene molded brush element is maintained during co... | 01/11/1994 |
| 5277784 | Manufacturing method for a vacuum fluorescent display A manufacturing method for a vacuum fluorescent display is performed by the steps of dividing a substrate into a plurality of areas, and sequentially forming a signal line, an insulating layer, and a segment electrode on each area, arranging common wiring... | 01/11/1994 |
| 5277787 | Method of manufacturing printed wiring board A method of manufacturing printed wiring board is disclosed. The method comprising steps of providing a double-sided copper clad laminate; embedding a conductive ink into a through hole provided in the copper clad laminate; subjecting the opposing surface... | 01/11/1994 |
| 5277783 | Manufacturing method for orifice plate The present invention relates to a manufacturing method for an orifice plate to be used for an ink jet printer or the like. First, a master having a predetermined pattern firmly provided on a substrate is prepared. An electroformed film is then formed on ... | 01/11/1994 |
| 5277782 | Baffled cold shields for infrared detector An infrared cold shield comprises a side wall, a top wall and at least one baffle extending across the interior of the cold shield. The top wall and baffles comprise aligned apertures. The cold shield is preferably made by securing one or more metal foil ... | 01/11/1994 |
| 5275716 | Method for manufacturing tin-electroplated cold-rolled steel strip A method for manufacturing a tin-electroplated cold-rolled steel strip, which comprises the steps of: continuously annealing a degreased cold-rolled steel strip; then, subjecting, following the continuous annealing treatment, the continuously annealed col... | 01/04/1994 |
| 5275717 | Process for the manufacture of prosthetic elements and elements produced thereby Process for the manufacture of dental or maxillo-facial prostheses, particularly endo-osseous prostheses or pivots, in which a layer of pure aluminum is deposited on a conductive substrate, preferably a metal, which forms the core of the prosthesis. The a... | 01/04/1994 |
| 5273642 | Apparatus and method for electroplating wafers An apparatus and corresponding method for electroplating wafers includes supporting a plurality of wafers on a backing board in the electroplating tank such that one surface of each wafer is masked from the electrolytic reaction. A programmable controller... | 12/28/1993 |
| 5273643 | Method of producing zinc-chromium alloy plated steel sheet with excellent plating adhesiveness The present invention provides a method of producing a zinc-chromium alloy-plated steel sheet having excellent properties such as bare corrosion resistance, corrosion resistance after coating, plating adhesiveness and weldability. The method is characteri... | 12/28/1993 |
| 5271822 | Methods and apparatus for electroplating electrical contacts A method for selectively electroplating a metallic coating, such as solder, onto a plurality of small and closely spaced electrical contacts. The method includes sealingly enclosing the contacts in an electroplating cell having an anode, a cathode and a c... | 12/21/1993 |
| 5269890 | Electrochemical process and product therefrom Removal of non-diamond carbon from a diamond substrate surface is accompled in an electrochemical apparatus comprising an electrolyte and spaced electrodes immersed in the electrolyte and having impressed voltage producing a sufficient electric field in ... | 12/14/1993 |
| 5269889 | Electrolytic cleaning and refurbishing of grinding wheels In a method of grinding a workpiece employing a metallic grinding wheel sorting a non-conductive abrasive medium, a cathode is provided in spaced relationship with the abrasive surface so as to define a gap therewith. Electrolyte is caused to flow throug... | 12/14/1993 |
| 5266181 | Controlled composite deposition method A composite deposit in which insoluble particles are co-deposited and dispersed in a metal matrix is formed on an article by dipping the article in a metal plating solution having insoluble particles dispersed therein and effecting an electroplating or ch... | 11/30/1993 |
| 5266183 | Method for plating an x-ray mask A method for making an x-ray mask having a low-stress absorber layer. A substrate is placed in an electroplating system and an electroplating solution is provided to the electroplating system. The electroplating solution has a gold sulfite based component... | 11/30/1993 |
| 5262041 | Additive plating process A method for electroplating over a nonconducting substrate comprising the steps of applying a thin film of a non-metallic conductive coating having a surface resistivity not exceeding 100 megaohms over said substrate, applying an electrically nonconductiv... | 11/16/1993 |
| 5262020 | Hydrometallurgical method of producing metallic lead from materials containing oxides, particularly from the active material of accumulators In a method of producing metallic lead from a material including lead dioxide and/or metallic lead, including a step for dissolving the lead contained in the material and an electrolysis step for the cathodic deposition of the dissolved lead, the dissolvi... | 11/16/1993 |
| 5262021 | Method of manufacturing a perforated workpiece A method of forming holes extending perpendicular to a first surface of a workpiece comprises providing the substrate wafer of n-doped, single-crystal silicon, and then electrochemically etching the substrate wafer to form a structured layer having the de... | 11/16/1993 |
| 5262039 | Silicon-containing iron sheet for electrical applications and methods for its manufacture In the manufacture of a silicon-containing iron sheet for electrical applications consisting of 0.1-8% by weight Si, optionally up to 1% by weight Al, remainder iron and unavoidable impurities, iron sheet is made by electrodeposition, and silicon or a sil... | 11/16/1993 |
| 5254224 | Method for increasing the molar ratio of aluminum to chlorine in polyaluminum chloride solutions Disclosed is a method for increasing the molar ratio of aluminum to chlorine in a polyaluminum chloride solution by the electrochemical dissolving of aluminum, including contacting a polyaluminum chloride solution having a molar ratio of aluminum to chlor... | 10/19/1993 |
| 5254239 | Mask stripper for electroform parting A method for separating an electroformed article from a mandrel comprising: (a) masking a portion of a mandrel with a mask comprising an electrically nonconductive outer surface; (b) electroforming an article on the mandrel wherein the electroforming mate... | 10/19/1993 |
| 5252195 | Process for producing a printed wiring board A process for the production of a printed wiring board, which comprises preparing a copper-clad laminate having a through-hole formed by drilling; providing a first resist pattern on the surface of the copper-clad laminate so as to cover a portion to be f... | 10/12/1993 |
| 5250173 | Process for producing anodic films exhibiting colored patterns and structures incorporating such films A process for producing a structure including an anodic film exhibiting a colored pattern, and the resulting structures. The process involves anodizing a surface of a metal substrate or article made of or coated with aluminum or an anodizable aluminum all... | 10/05/1993 |
| 5250162 | Method of reducing Ti(IV) to Ti(III) in acid solution A method of reducing Ti(IV) to Ti(III) in which the Ti(IV) in acid solution is fed to an electrochemical cell having a semi-hydrophobic gas diffusion anode to which hydrogen gas is supplied. A current is passed through the cell to effect the electrochemic... | 10/05/1993 |
| 5250172 | Method to fabricate metallic containers by electroplating for use in hot isostatic pressing of metallic and/or ceramic powders Wax, alloy or plastic molds for containers used in hot isostatic pressing of metal and/or ceramic powders are surface conditioned for electroplating, coated with several metallic layers and removed from the resulting container.... | 10/05/1993 |
| 5248399 | Method of regenerating aluminum surface cleaning agent A cleaning agent is used to wash surfaces of aluminum products in a cleaning bath. The cleaning agent is a water-soluble acid containing ferric ions. During the cleaning process, the ferric ions are reduced to ferrous ions. The used cleaning agent is sent... | 09/28/1993 |
| 5246564 | Method of manufacturing copper-polyimide substrate A method of manufacturing a copper-polyimide substrate, includes hydrophilicating the surface(s) of a polyimide film, applying a catalyst thereto, subjecting the film to electroless plating, heat-treating it in an inert atmosphere, and subjecting it to el... | 09/21/1993 |
| 5246553 | Tetravalent titanium electrolyte and trivalent titanium reducing agent obtained thereby An electrolyte containing a tetravalent salt of titanium in a methanesulfonic acid solution. A reducing agent consisting of trivalent titanium in the same solution. A cell wherein the catholyte is the above electrolyte. The reduction of tetravalent titani... | 09/21/1993 |
| 5244564 | Apparatus for electrolytic surface coating of pourable material and method for operating the apparatus The bulk material is transportable in an electrolyte in the conveying trough of a vibrator conveyor. The perforated conveying trough constitutes one of the two electrodes. According to the invention, the polarity of the conveying trough (21) and of the ot... | 09/14/1993 |
| 5244563 | Apparatus and method for electroplating An apparatus for electroplating, particularly in the production of metal matrices for manufacturing articles of plastic, such as compact discs, said apparatus comprising a container having a peripheral wall and opposed first and second end walls so as to ... | 09/14/1993 |
| 5242571 | Method and apparatus for the electrolytic production of copper wire A method and apparatus are disclosed for producing copper wire by electrolytically engrossing a copper starting wire. Basically the invention utilizes an electrolytic tank employing a pair or pairs of shafts positioned externally of the tank upon which a ... | 09/07/1993 |
| 5242562 | Method and apparatus for forming printed circuits A method and apparatus for continuously forming printed circuits, the apparatus including a cylindrical drum rotatable about a generally vertical axis and a tank for holding an electrolytic plating solution. The tank is dimensioned to surround a lower por... | 09/07/1993 |
