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| Number | Title | Issue Date |
| 8083866 | Method for hardening the surfaces of work pieces made of stainless steel, and a molten salt bath for realizing the method A method for hardening the surfaces of work pieces made from stainless steel includes submerging the work pieces into a molten salt bath having the composition: potassium acetate 60-100 weight %; sodium acetate 0-100 weight %; metal salt 0-2 weight %, and are subjec... | 12/27/2011 |
| 7284461 | Colored razor blades Colored razor blades are provided. Methods for manufacturing such blades are also provided, including methods involving subjecting a blade material to a hardening process; and, during the hardening process, oxidizing the blade material to form an oxide layer on the ... | 10/23/2007 |
| 7279423 | Forming a copper diffusion barrier Noble metal may be used as a non-oxidizing diffusion barrier to prevent diffusion from copper lines. A diffusion barrier may be formed of a noble metal formed over an adhesion promoting layer or by a noble metal cap over an oxidizable diffusion barrier. The copper l... | 10/09/2007 |
| 7246570 | Indication film for temperature and temperature distribution measurement and related method A method of determining temperature and temperature distribution over the surface of an object includes (a) applying a temperature sensitive film composed of material displaying change in color as a function of temperature on a surface of an object; and (b) comparin... | 07/24/2007 |
| 7238244 | Nitriding of iron and steel parts in salt bath having improved corrosion resistance A new nitriding process by using a salt bath to produce iron and steel parts having excellent abrasion resistance and corrosion resistance includes forming an iron lithium complex oxide layer at the outermost surface of the iron part by immersing the iron and steel ... | 07/03/2007 |
| 7217327 | Method of producing metal member with enhanced corrosion resistance by salt bath nitriding A metal member is produced with enhanced corrosion resistance by salt bath nitriding. Specifically, in a nitriding salt bath containing Li+, Na+ and K+ ions as cation components and CNO− and CO3−− | 05/15/2007 |
| 7132129 | Method of forming a diamond coating on an iron-based substrate and use of an iron-based substrate for hosting a CVD diamond coating A method of forming a diamond coating on an iron-based substrate, comprising: providing an iron based substrate with an outer layer which substantially comprises metal borides; and depositing the diamond coating on the outer layer using a process of Chemical Vapor D... | 11/07/2006 |
| 7118994 | Semiconductor device and method for manufacturing same Disclosed is a semiconductor device having a driver circuit operable at high speed and a method for manufacturing same. An active matrix liquid crystal display device uses a polysilicon film for its TFT active layer constituting a pixel matrix circuit because of low... | 10/10/2006 |
| 7066375 | Aluminum coating for the corrosion protection of welds A method for coating and an associated assembly including such a coating are provided. The assembly includes a workpiece defining a weld portion, such as a friction weld joint and a heat affected zone. A coating is disposed on the weld portion to at least partially ... | 06/27/2006 |
| 6953146 | Low-temperature flux for soldering nickel-titanium alloys and other metals A low-temperature flux is described which dissolves the refractory oxide layer from a shape memory alloy containing both nickel and titanium, such as Nitinol, and from other metals like stainless steel. The flux is particularly useful for preparing shape memory allo... | 10/11/2005 |
| 6875291 | Method for producing a tin-zinc alloy film A tin layer and a zinc layer are stacked sequentially on a given substrate to form a multilayered film composed of the tin layer and the zinc layer. Then, the multilayered film is heated to a given temperature to form a tin-zinc alloy film through the diffusion of t... | 04/05/2005 |
| 6858097 | Brightening/passivating metal surfaces without hazard from emissions of oxides of nitrogen A chromium- and nitrogen-free brightening and passivating treatment for metal surfaces, particularly iron and steel, comprises: at least one acid; at least one substance containing a peroxy moiety; and at least one organic substance selected from the group consistin... | 02/22/2005 |
| 6830700 | Method and device for removing particles from liquid A method and device for removing particulate matter from a liquid medium, especially a molten salt bath. The structure includes a device for capturing and removing particulate matter from a liquid medium. In operation, the device is inserted into the liquid having t... | 12/14/2004 |
| 6746546 | Low temperature nitriding salt and method of use A composition for nitrocarburizing stainless steel parts and a method for producing a nitride or hard case on such parts using the composition, are provided. The composition includes alkali metal cyanate and alkali metal carbonate, wherein the cyanate ion is present... | 06/08/2004 |
| 6632293 | Highly activated hydrogen containing material and method for producing the material A hydrogen containing material comprises a first compound including hydrogen containing material and fluoride, and a second compound including a metal which becomes highly reactive with hydrogen when the metal becomes a compound including fluorine, and a ... | 10/14/2003 |
| 6602354 | Method for producing a tin-nickel alloy film A tin layer and a nickel layer are stacked sequentially on a given substrate to form a multilayered film composed of the tin layer and the nickel layer. Then, the multilayered film is heated to a given temperature to form a tin-nickel alloy film through t... | 08/05/2003 |
| 6569268 | Process and alloy for decorative galvanizing of steel A process and an alloy for galvanizing non-reactive steel and mixed or moderately reactive steel for providing a decorative spangle to the galvanized coating. The alloy contains 0.1 to less than 0.8 wt % tin, 0.05 to 0.2 wt % bismuth, 0.001 to 0.008 wt % ... | 05/27/2003 |
| 6548183 | Metal-based composite material and method of producing the same A metal-based composite material is formed by impregnating a matrix metal of Al or Al alloy into ores of a porous preform of a hydrogenatable metal having a metal hydride in at least a part of its surface.... | 04/15/2003 |
| 6544353 | Surface chemical treatment for liquid gallium or gallium alloy mirrors The invention relates to a method of treating a liquid gallium or gallium alloy surface for prolonged use as a liquid mirror. The method of the invention comprises the steps of (a) contacting the surface of liquid gallium or gallium alloy with an aqueous ... | 04/08/2003 |
| 6521053 | In-situ formation of a protective coating on a substrate A substrate is protected by first providing the substrate, and applying a ceramic coating overlying and bonded to the substrate. The ceramic coating is formed of an open-cell solid foam of ceramic cell walls having an interconnected intracellular volume t... | 02/18/2003 |
| 6406561 | One-step noble metal-aluminide coatings A "one-step" method of forming diffused noble metal-aluminide coatings with or without minor incorporations of Si, Cr, Mn, Hf, La, and Y, is disclosed. With the inventive method, two or more powdered metals or metal alloys are applied and diffused into th... | 06/18/2002 |
| 6284058 | Method of aluminizing metal alloys by weld overlay using aluminum and aluminum alloy filler metal A method of aluminizing metals with a coating of aluminum or aluminides.... | 09/04/2001 |
| 6221175 | Method for the production of a ceramic layer on a metallic base material The method for the production of a ceramic layer on a metallic base material combines the following measures: The base material is preheated. Ceramic coating material is applied to a locally melted surface region of the base material. The coating material... | 04/24/2001 |
| 6187116 | Alloy and process for galvanizing steel This disclosure relates to an Sn-containing and/or Bi-containing zinc alloy for hot galvanizing steel, more particularly for component galvanizing. The alloy is composed of 1 to 5% by weight of Sn+Bi, 0 to saturation of Pb, 0.025 to 0.200% by weight of at... | 02/13/2001 |
| 5904783 | Method for reducing lead leaching in fixtures A method for treating a brass fixture having a fluid-contacting surface with lead dispersoids exposed thereon to reduce lead leaching into a fluid supply by contacting the brass fixture with a liquid metal solution selected from the group consisting of a ... | 05/18/1999 |
| 5873951 | Diffusion coated ethylene furnace tubes The inner surface of ethylene furnace tubes is diffusion coated with a sufficient amount of chromium or chromium and silicon to form a first coating having a thickness of at least two mils. This coating is then cleaned, neutralized, and grit blasted. Then... | 02/23/1999 |
| 5798002 | Method of and device for producing carbide and carbon solid solution containing surface layers In order to produce a carbon solid solution or carbide-containing surface layer on a substrate, the substrate is immersed into a cold bath of liquid active medium, and heated inside the liquid active medium by heating means immersed in the liquid active m... | 08/25/1998 |
| 5769966 | Insulator coating for high temperature alloys method for producing insulator coating for high temperature alloys A method for fabricating an electrically insulating coating on a surface is disclosed comprising coating the surface with a metal, and reacting the metal coated surface with a nonmetal so as to create a film on the metal-coated surface. Alternatively, the... | 06/23/1998 |
| 5753052 | Method of treating ferrous surfaces subjected to high friction strains In a method of increasing the wear resistance and the corrosion resistance f opposed bearing surfaces of parts subjected to reciprocal friction, in particular when the product of the pressure distributed over the bearing surfaces by the relative speed of t... | 05/19/1998 |
| 5735971 | Method for the Pre-treatment of steel parts prior to salt bath nitriding Flawless nitrating layers are obtained during the nitro-carburizing of components made from steels which form passive layers in salt baths if these components are first pre-treated in an oxidizing salt melt at 300° to 500° C. prior to the nitro-carburiz... | 04/07/1998 |
| 5683415 | Surgical needle The invention relates to a surgical needle with a suture material or thread fixed to the end opposite to the perforation tip, characterized in that the puncturing tip and the area of the needle following onto the latter is made up to approximately 50% of ... | 11/04/1997 |
| 5631845 | Method and system for controlling phosphate bath constituents A phosphate bath control system and method is provided that tracks the set points of one or more of the major process variables of the phosphate bath independently of variations in the production conditions. A detector determines the current values of Zin... | 05/20/1997 |
| 5629099 | Alloying-treated iron-zinc alloy dip-plated steel sheet excellent in press-formability and method for manufacturing same An alloying-treated iron-zinc alloy dip-plated steel sheet excellent in press-formability, having, on the surface thereof, numerous fine concavities which satisfy the following conditions: (1) that the number of fine concavities having a depth of at least... | 05/13/1997 |
| 5576066 | Method of improving the wear and corrosion resistance of ferrous metal parts A process for improving the wear and corrosion resistance of ferrous metal arts consists in immersing the parts, which have previously been treated using a nitriding, diffusion technique, in a molten salt bath comprising carbonates, nitrates, hydroxides an... | 11/19/1996 |
| 5514226 | Salt bath composition based on alkali nitrates for oxidizing ferrous metal to improve its corrosion resistance A salt bath composition is adapted to form a layer of magnetite Fe3 O4 on the surface of ferrous metal parts, including nitrided ferrous metal parts, to protect the underlying iron against corrosion. This layer is impermeable and of ... | 05/07/1996 |
| 5506002 | Method for galvanizing linear materials A method of galvanizing ferrous linear elements, e.g., tube, pipe, structural shapes, as part of a continuous manufacturing line by passing the axially travelling preheated element through transversely flowing molten zinc.... | 04/09/1996 |
| 5413642 | Processing for forming corrosion and permeation barriers An alloy has less stable oxides, e.g. nickel oxide, chromium oxide, and iron oxide on a surface (FIG. 1 ). The material has specific reaction elements such as titanium and aluminum in a relatively low concentration throughout the alloy. At an elevated tem... | 05/09/1995 |
| 5397652 | Corrosion resistant, colored stainless steel and method of making same A colored, corrosion resistant architectural material having improved corrosion-resistant properties wherein the material includes stainless steel which is coated with a tin and the tin coated material is post-treated with an oxidizing solution to remove ... | 03/14/1995 |
| 5389161 | Process for phosphating steel parts to improve corrosion and wear resistance After preliminary treatment of their surfaces, the parts are brought into contact within a solution containing, essentially, protons, phosphate anions and cations chosen from Ca2+, Sn2+ and Mn2+. The preliminary treatment ... | 02/14/1995 |
| 5377398 | Method for descaling metal strip utilizing anhydrous salt An improved salt and method of using such salt for conditioning scale on strip or sheet metal surfaces is provided. In more particular aspects, the invention provides an improved salt of alkali metal hydroxides and alkali metal nitrates which are used in ... | 01/03/1995 |
