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| Number | Title | Issue Date |
| 8187395 | Electrical contact having high electrical conductivity made of internally oxidized silver-oxide material for compact electromagnetic relay Disclosed is an electrical contact having high electrical conductivity for a compact electromagnetic relay including an internally oxidized silver-oxide material which is prepared by subjecting an Ag alloy having a composition consisting essentially of, by weight, 5... | 05/29/2012 |
| 7336466 | Contactor material for welding wire feeder An electromechanical contactor device is disclosed for use in a wire feeder for an electric arc welder having a power source and a gun with a contact tip through which welding wire is fed and a weld cycle start trigger switch having a closed condition to initiate an... | 02/26/2008 |
| 7198683 | Sterling silver alloy compositions of exceptional and reversible hardness, and enhanced tarnish resistance A sterling silver alloy composition of exceptional and reversible hardness and enhanced tarnish resistance, consists essentially of the following parts by weight: at least about 92.5% silver; about 4.4% to about 5.25% copper; about 0% to about 1.0% zinc; about 0.85%... | 04/03/2007 |
| 7189292 | Self-encapsulated silver alloys for interconnects Alloys of silver and an alloying element that diffuses to the surface of the high conductivity metal and is oxidizable to form an alloying element oxide such as beryllium are provided along with electronic structures employing the alloys and methods of fabrication. | 03/13/2007 |
| 7189656 | Method for manufacturing ag-oxide-based electric contact material and product of the same Although an Ag—CdO-based material has excellent electric properties such as deposition resistance, arc resistance and low contact resistance, which are required for an electric contact, the discharge standard provision in Japan, EC Directive on Waste from Electric... | 03/13/2007 |
| 7160632 | Material for sliding contacts, clad composite material and small-sized DC motor using the same The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essent... | 01/09/2007 |
| 7128792 | Sterling silver manganese alloy compositions A unique manganese silver alloy composition is provided, which alloy exhibits the long desired properties of exceptional as-cast hardness and reversible heat treatability, in addition to offering reduced fire scale, reduced voids and porosity, reduced grain size, an... | 10/31/2006 |
| 7118707 | Silver-platinum alloy and methods of manufacturing same A silver-platinum alloy formulated to provide improved tarnish resistance and hardness as compared to sterling silver. The alloy can be incorporated in various jewelry, flatware, and like articles. The alloy generally includes silver and platinum, with silver being ... | 10/10/2006 |
| 7012492 | Contact construction for DC loads and switching device having the contact construction A contact construction and switching device for DC loads that can be repeatedly used while minimizing problems such as cut-off failure, locking and deposition due to an abnormal continuation of an arc between the contacts, burning and destruction of the contacts, an... | 03/14/2006 |
| 7004994 | Method for making a film from silver-containing particles Provided are silver-containing powders and a method and apparatus for manufacturing the silver-containing particles of high quality, of a small size and narrow size distribution. An aerosol is generated from liquid feed and sent to a furnace, where liquid in droplet... | 02/28/2006 |
| 6974923 | Electric contact and breaker using the same A high quality electrical contact that is made of a Cd free Ag alloy and can be applied to a breaker is provided. The electrical contact is made of an Ag alloy containing Sn and In each 1 to 9% by weight, and has a first layer as the surface layer and a secon... | 12/13/2005 |
| 6946039 | Physical vapor deposition targets, and methods of fabricating metallic materials The invention includes a physical vapor deposition target composed of a face centered cubic unit cell metal or alloy and having a uniform grain size less than 30 microns, preferably less than 1 micron; and a uniform axial or planar texture. Also described is a... | 09/20/2005 |
| 6936117 | Silver alloy with color fastness A silver alloy with color fastness includes silver as major component; and a small quantity of copper, zinc and nickel so that it can be prevented to oxidize, and it can use metal with easy procurement without special metal and manufacture a alloy with color fastnes... | 08/30/2005 |
| 6908691 | Metal strip for epitaxial coatings and method for the production thereof The aim of the invention is to provide a metal strip for epitaxial coating with a biaxially textured layer, this metal strip, however, being able to be produced in an uncomplicated manner and having a high tensile strength, low magnetic losses and/or a high electric... | 06/21/2005 |
| 6860949 | High strength, tarnish resistant composition of matter A high strength, tarnish resistant composition of matter includes approximately 90 percent Ag, 3 to 5 percent Pt and 7 to 5 percent Cu. In a preferred embodiment, the composition of matter includes 90 percent Ag, 3 percent Pt and 7 percent Cu. In another preferred e... | 03/01/2005 |
| 6791045 | Shielded-type automotive relay controlling a magnet clutch load of a vehicle air-conditioner The invention is directed to an electric contact material useful in the fabrication of a vehicle relay of high durability against inductive load to which the relay incorporated in a magnetic clutch of a vehicle air-conditioner is exposed, and also to a relay having ... | 09/14/2004 |
| 6760606 | Auxiliary material for superconductive material This invention provides a auxiliary material for use with a superconductive material, which auxiliary material is characterized in that MgO alone or MgO and NiO are dispersed in Ag material by internal oxidation. Here, it is preferred that a weight ratio of Ag and M... | 07/06/2004 |
| 6746551 | Make break contact material comprising ag-ni based alloy having ni metal particles dispersed and relay using the same A make-and-break contact material which is less worn out and is able to achieve an increased life compared to a conventional material of Ag—CdO-based alloy, in an AC general relay used for a resistive load of about 1 to 20A in a range of AC 100V to 250V. In the pr... | 06/08/2004 |
| 6689186 | Silver-containing particles, method and apparatus of manufacture, silver-containing devices made therefrom Provided are silver-containing powders and a method and apparatus for manufacturing the silver-containing particles of high quality, of a small size and narrow size distribution. An aerosol is generated from liquid feed and sent to a furnace, where liquid... | 02/10/2004 |
| 6254701 | Copper alloy and sliding bearing having improved seizure resistance A sliding bearing having improved seizure resistance has the following structure. (a) A bearing layer (2). It comprises a copper alloy containing in a Cu matrix Ag, Sn, Sb, In, Mn, Fe, Bi, Zn, Ni and/or Cr. (b) A fisrst sub-layer (3) of the bearing layer (2). ... | 07/03/2001 |
| 6245166 | Material for sliding contact, composite clad material, and small-sized direct current motor using the same An object of the present invention is to provide a material for a sliding contact whose alloy composition does not contain an environmentally detrimental substance such as Cd, which exhibits excellent contact resistance, whose electrical functions are goo... | 06/12/2001 |
| 6139652 | Tarnish-resistant hardenable fine silver alloys A fine silver alloy composition having at least about 99.5 weight percent silver, with the balance containing an element, or an oxide of an element, selected from the group consisting of: aluminum, antimony, cadmium, gallium, germanium, indium, lithium, m... | 10/31/2000 |
| 5972131 | Ag-Cu alloy for a sliding contact An Ag--Cu alloy for a sliding contact containing: a) 0.1 to 8.0 wt. % of Cu, based on the weight of the alloy, wherein at least 70 wt. % of the Cu contained in the alloy is solid-solubilized in an Ag--phase; and b) 0.1 to 4.0 wt. %, based on the weight ... | 10/26/1999 |
| 5955686 | Brazing materials for producing metal-ceramics composite substrates A brazing material having 0.25-0.9 wt % of titanium oxide added to a basic formula consisting of 60-94.25 wt % Ag, 5-30 wt % Cu and 0.5-4.5 wt % of an active metal is processed to form a paste, which is applied to an AlN substrate and overlaid with a copp... | 09/21/1999 |
| 5882441 | Silver colored alloy with low percentage copper A silver colored alloy, highly tarnish resistant, corrosion resistant and brittleness free is provided. The alloy includes 90% to 94% by weight silver, 3.50% to 7.35% by weight zinc, 1% to 3% by weight copper, and 0.1% to 2.5% by weight silicon. The alloy... | 03/16/1999 |
| 5846288 | Electrically conductive material and method for making Electrical contact material made from intimate mixtures of silver powder and a powder of a second phase material is shown in which the powder of the second phase material is milled to produce a selected grain distribution of approximately 90% less than 7-... | 12/08/1998 |
| 5781993 | Method for preventing oxidization of a silver-cadmium object A one-sided oxidized silver-cadmium object is formed. One side of a silver-cadmium object is covered with a non-silver-cadmium shield to enable the one side to resist oxidation. Then the object is oxidized under conditions that leave substantially unoxidi... | 07/21/1998 |
| 5607522 | Method of making electrical contact material An electrical contact material having metal oxide particles dispersed in a silver metal matrix and having an easily brazeable backing layer is made free of internal oxide depletion zones by bonding a conventional internally oxidizable silver alloy to a th... | 03/04/1997 |
| 5451272 | Silver-oxide electric contact material for use in switches for high current A silver-oxide material for electric contacts of high-current switches, having excellent deposition resistance and consumption resistance. The material is formed by subjecting to an internal oxidation treatment an Ag alloy consisting essentially, by weigh... | 09/19/1995 |
| 5421918 | Silver- or silver-copper alloy-metal oxide composite material A silver-metal oxide composite material comprising a silver matrix or silver-copper alloy matrix containing 50% by weight or less of copper, (a) from 0.5 to 25% by weight, in terms of elemental metal, of an oxide of at least one element selected from the ... | 06/06/1995 |
| 5338618 | Electric contact material and electric contact using said material An electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, oxide of at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element... | 08/16/1994 |
| 5292359 | Process for preparing silver-palladium powders The present invention relates to a process for preparing silver-palladium powders that may be used for the production of electrode materials, contacts or the like used in the electronic industries. The process comprises the steps of forming an acid soluti... | 03/08/1994 |
| 5284527 | Method of making silver-metal oxide materials and electrical contacts A method of making silver-metal oxide materials suitable for use in electrical contacts includes oxidizing a silver-solute metal alloy in an oxidizing atmosphere. The oxidizing atmosphere has a sufficient amount of halide to inhibit the formation of a pro... | 02/08/1994 |
| 5259885 | Process for making ceramic/metal and ceramic/ceramic laminates by oxidation of a metal precursor A method of preparing a laminated ceramic. The method includes preparing a precursor having at least one noble metal element component and at least two non-noble metal elements. The precursor is exposed to a first environment to form an oxidized zone havi... | 11/09/1993 |
| 5236523 | Silver- or silver-copper alloy-metal oxide composite material A silver-metal oxide composite material comprising a silver matrix or silver-copper alloy matrix containing 50% by weight or less of copper, (a) from 0.5 to 25% by weight, in terms of elemental metal, of an oxide of at least one element selected from the ... | 08/17/1993 |
| 5207842 | Material based on silver and tin oxide for the production of electrical contacts; electrical contacts thus produced The present invention relates to novel materials based on silver and tin oxide for the production of electrical contacts as well as the electrical contacts thus produced. According to the invention, these materials contain at least 6% by weight of tin oxi... | 05/04/1993 |
| 5147728 | Ag-SnO2 electrical contact materials Novel Ag-SnO electrical contact materials are disclosed, which are made of Ag alloys consisting of 5-20 weight % of Sn and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also ... | 09/15/1992 |
| 5102480 | Ag-SnO-CdO electrical contact materials and manufacturing method thereof Novel Ag-SnO-CdO electrical contact materials are disclosed, which are made of ternary Ag alloys consisting of more than 5-12 weight % of Sn, 0.5-5 weight % of Cd, and a balance of Ag, the alloys having been prepared by melting and having been internal ox... | 04/07/1992 |
| 5078810 | Method of making Ag-SnO contact materials by high pressure internal oxidation Novel Ag-SnO electrical contact materials are disclosed, which are made of Ag alloys consisting of 5-20 weight % of Sn and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also ... | 01/07/1992 |
| 5067987 | Method of manufacturing a silver alloy which is blackened throughout its bulk The present invention relates to manufacturing a silver alloy which is blackened throughout its bulk and used, for example, in jewelry. The method of manufacturing this material comprises putting the silver alloy into contact with sulfur in the form of su... | 11/26/1991 |
