Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7442225 | High strength high toughness Mo alloy worked material and method for production thereof The present invention provides a worked molybdenum-alloy material that can be used at higher temperatures than at least temperatures at which known TZM alloys are used. A worked molybdenum-alloy material having high strength and high toughness includes at lea... | 10/28/2008 |
| 7309373 | Method of making a ceramic body of densified tungsten carbide A method of making tungsten carbide and a method of making a densified tungsten carbide-containing ceramic body with a transverse rupture strength greater than 300,000 psi are disclosed. ... | 12/18/2007 |
| 7291229 | Method of surface treatment of titanium metal A method of carburizing treatment is proposed in which if carburizing is carried out at a low temperature, carbon will not turn amorphose and deposit on the surface of a titanium metal but reliably penetrate into between metallic atoms. It is a method of surface tre... | 11/06/2007 |
| 7276129 | Surface treating methods of titanium parts Surface treating methods of a titanium part may include the steps of determining an effective thickness of a hard oxide film to be formed on a surface of the titanium part, determining an effective surface roughness of the hard oxide film, and oxidation treating the... | 10/02/2007 |
| 7258722 | Process for manufacturing ultra fine TiC-transition metal-based complex powder Any one of a Ti-containing water-soluble salt, metatitanic acid (TiO(OH)2) slurry and ultra fine titanium oxide powder, and a transition metal containing metal salt are dissolved in water to prepare a raw material mixture. The raw material is spray-dried ... | 08/21/2007 |
| 7235118 | Process for agglomeration and densification of nanometer sized particles A method and product derived therefrom for consolidating nanoparticles to form particles in a micrometric size distribution. The method preserves the nanoparticles with the resultant micrometric particles. The primary processing operation is milling. ... | 06/26/2007 |
| 7153340 | Process for manufacturing nano-phase TaC-transition metal based complex powder Ultra fine TaC-transition metal based complex powder is prepared by: dispersing a mixture of a Ta-containing material and a transition metal-containing water soluble salt into a solvent; stirring the mixture and spray-drying the stirred material to obtain precursor ... | 12/26/2006 |
| 7118635 | Method for producing tungsten carbides by gas-phase carburization The invention relates to a method for producing wolfram carbides by gas-phase carburetion of wolfram powders and/or suitable wolfram precursor compounds in powder form at temperatures above 850° C. According to the method a CO2/CO mixture with a CO2... | 10/10/2006 |
| 7108831 | Monophasic Tungsten Carbide The present invention relates to a method of producing tungsten carbide by gas phase direct carburization of a tungsten-oxide containing starting material, wherein the starting material is reacted with a reaction gas at an increased temperature. The starting materia... | 09/19/2006 |
| 7073559 | Method for producing metal fibers A method of producing metal fibers including melting a mixture of at least a fiber metal and a matrix metal, cooling the mixture to form a bulk matrix comprising at least a fiber phase and a matrix phase and removing at least a substantial portion of the matrix phas... | 07/11/2006 |
| 7048384 | Multiple scene projection system A projection system for presenting infrared scenes having biological and chemical agents, simulants and objects such as battlefield items. The generated scenes are primarily for the evaluation of infrared sensors, cameras and stand-off detectors. The system may have... | 05/23/2006 |
| 7008463 | Method for producing amorphous metal, method and apparatus for producing amorphous metal fine particles, and amorphous metal fine particles A method and apparatus are invented for producing an amorphous metal, which can readily realize amorphous metal fine particles of sub-micron order to 100 micron order including fine particles of several micrometer of a material from which an amorphous metal cannot b... | 03/07/2006 |
| 6833197 | Method of case hardening A method of case hardening an article formed of titanium, zirconium or an alloy of titanium and/or zirconium is disclosed. First, the article is heat-treated in an oxidizing atmosphere at a temperature in the range of 700 to 1000° C. so as to form an oxide layer on... | 12/21/2004 |
| 6749663 | Ultra-coarse, monocrystalline tungsten carbide and a process for the preparation thereof, and hardmetal produced therefrom A process is described for the preparation of tungsten and/or molybdenum metal powder or carbide by reducing and optionally carburizing treatment of tungsten and/or molybdenum oxide powder in the presence of alkali metal compounds, wherein at least two alkali metal ... | 06/15/2004 |
| 6623568 | Ti alloy poppet valve and a method of manufacturing the same A Ti alloy poppet valve consists of a valve stem and a valve head, and is employed as intake or exhaust valve in an internal combustion engine of an automobile. O2 is put into the valve in a furnace at very slight amount and heated to introduce... | 09/23/2003 |
| 6605160 | Repair of coatings and surfaces using reactive metals coating processes This invention pertains to the repair of parts comprising metals, and surfaces and coatings of these parts using reactive metals coating processes. Processes such as chemical vapor deposition (CVD), physical vapor deposition (PVD), plasma spray, and react... | 08/12/2003 |
| 6589368 | High melting point metal based alloy material having high toughness and strength The present invention provides a refractory-metal-based alloy material having a remarkably enhanced toughness and strength, by internally nitriding a nitride-forming metal element incorporated as a solid solution into an alloy worked piece, which has a pa... | 07/08/2003 |
| 6524366 | Method of forming nanograin tungsten carbide and recycling tungsten carbide Tungsten carbide is formed from a tungsten material which is preferably tungsten carbide scrap. If scrap material is used, this is oxidized and acid leached to remove impurities and any binder material. This is then dissolved in a solution of sodium hydro... | 02/25/2003 |
| 6511551 | Method of production WC/Co cemented carbide using grain growth inhibitor The present invention relates to a method of adding a grain growth inhibitor of WC/Co cemented carbide, which comprises adding a water-soluble salt of V, Ta, or Cr component as a grain growth inhibitor, at the time of mixing water-soluble salts of W and C... | 01/28/2003 |
| 6461448 | Low temperature case hardening processes A method for case hardening a chromium bearing nickel or ferrous based alloy, for example stainless steel, article, the method including the steps of activating the surface of the article; and carburizing the activated surface at a temperature below that ... | 10/08/2002 |
| 6458218 | Deposition and thermal diffusion of borides and carbides of refractory metals A method is provided for depositing and thermally diffusing a boride or a carbide of a refractory metal on a substrate of a workpiece. A layer of the refractory metal is deposited on the substrate. At least one of the elements boron and carbon is deposite... | 10/01/2002 |
| 6451129 | Titanium-base decoration member and method for curing the same A decorative titanium material according to the present invention eliminates a deterioration of the appearance even after processing, that is, provides a small surface roughness, and has a hardened layer of titanium at the surface of the titanium material... | 09/17/2002 |
| 6293989 | Method of producing nanophase WC/TiC/Co composite powder The present invention relates to a method of producing nanophase WC/TiC/Co composite powder by means of a mechano-chemical process comprising a combination of mechanical and chemical methods. For this purpose, the present invention provides a method of pr... | 09/25/2001 |
| 6267825 | Process for treating metal workpieces A method for treating metal workpieces, including non-ferrous metal workpieces such as Titanium. The metal workpieces are heat soaked for a predetermined amount of time in a furnace at a predetermined temperature. An interstitial element is introduced int... | 07/31/2001 |
| 6238491 | Niobium-titanium-zirconium-molybdenum (nbtizrmo) alloys for dental and other medical device applications The present invention is a medical implant or device fabricated, in any manner, from a niobium (Nb)--titanium (Ti)--zirconium (Zr)--Molybdenum (Mo) alloy (NbTiZrMo alloy). The implant or device has components at least partially fabricated from a metal all... | 05/29/2001 |
| 6221174 | Method of performing titanium/titanium nitride integration The present invention is a method of wafer processing which improves the reliability of an integrated titanium (Ti)/titanium nitride (TiN) CVD film formed from a reaction of titanium tetrachloride (TiCi4) and ammonia (NH3). A Ti film... | 04/24/2001 |
| 6210494 | High temperature ZrN and HfN IR scene projector pixels A structure and method of making resistive emitting members which exhibit high resistivity while at the same time providing high temperature operation significantly above that known in the art. Specifically the use of nitrides of Group IVB transition meta... | 04/03/2001 |
| 6113668 | Process for manufacture of powder compact feed materials for fine grained hardmetal The manufacture of powdered feed materials for hard fine grained metal body production includes the reduction of metal oxides into powdered metal and the subsequent carburization into metal carbide. Processes currently used are very cost intensive, mainly... | 09/05/2000 |
| 6093259 | Color development method of metallic titanium and black and colored titanium manufactured by this method This invention provides color development methods of metallic titanium used for manufacture of black titanium or titanium tinted in other chromatic colors. In one method, metallic titanium is treated with an alkali solution. It enables colored titanium ri... | 07/25/2000 |
| 6001227 | Target for use in magnetron sputtering of aluminum for forming metallization films having low defect densities and methods for manufacturing and using such target Improved targets for use in DC-- magnetron sputtering of aluminum or like metals are disclosed for forming metallization films having low defect densities. Methods for manufacturing and using such targets are also disclosed. Conductivity anomal... | 12/14/1999 |
| 5916377 | Packed bed carburization of tantalum and tantalum alloy Packed bed carburization of a tantalum or tantalum alloy object. A method for producing corrosion-resistant tantalum or tantalum alloy objects is described. The method includes the steps of placing the object in contact with a carburizing pack, heating th... | 06/29/1999 |
| 5916383 | Method of shot peening a hardened metal product with shot having high hardness A method for shot peening a hard metal product that has a hardened surface. The method includes projecting shot on the hardened surface of the hard metal product. The ratio of the Vickers hardness of the shot to that of the hardened surface is 0.8-1.6, an... | 06/29/1999 |
| 5885372 | Multi-step process to incorporate grain growth inhibitors in WC-Co composite Grain growth inhibitors including vanadium carbide, chromium carbide, tantalum carbide, and niobium carbide are incorporated into a cobalt/tungsten carbide matrix during the formation of the cobalt/tungsten carbide matrix. A precursor powder is formed by ... | 03/23/1999 |
| 5792289 | Titanium alloy products and methods for their production A titanium alloy product having good tribological properties without the need to introduce an alloying element into the surface is produced by casting or casting and forging a titanium alloy consisting of 2 to 15% by weight silicon or 5 to 15% by weight n... | 08/11/1998 |
| 5776264 | Method for producing amorphous based metals Amorphous tungsten, cobalt, nickel, molybdenum, iron and alloys thereof can be formed by reducing metal-containing compositions to form the elemental metal wherein the particle size of the elemental metal is less than about 80 microns. This is oxidized in... | 07/07/1998 |
| 5746803 | Metallic-carbide group VIII metal powder and preparation methods thereof A transition metal carbide-Group VIII metal powder comprising discrete particles of a transition metal carbide and Group VIII metal wherein: substantially all of the particles have a size of at most 0.4 micrometer; the transition metal carbide is selected... | 05/05/1998 |
| 5662745 | Integral engine valves made from titanium alloy bars of specified microstructure Bars of titanium alloys suited for the manufacture of at least the stems (2), (3) of engine valves are mass-producible while maintaining good configurational and dimensional accuracies throughout the valve fabricating process and the wear-resistance impar... | 09/02/1997 |
| 5658395 | Method of preparing powders for hard materials from APT and soluble cobalt salts According to the present invention there is now provided a method for preparing a powder containing W and Co and/or Ni characterized in reacting APT and a soluble salt of Co (Ni) in water at temperatures from room temperature to the boiling point of the s... | 08/19/1997 |
| 5632824 | Method of preparing powders for hard materials from cobalt salts and soluble tungstate salts There is disclosed a method for preparing a powder containing ammonium salts of W+Co(Ni) complex ions, through chemical reactions, in a water solution at temperatures from 70° C. to the boiling point and at pH around neutral, between tungstate salts and ... | 05/27/1997 |
| 5593511 | Method of nitridization of titanium thin films Titanium films are nitrided at temperatures less than 650° C., and preferably between 400° C. and 500° C., by treating the titanium film with a plasma formed from a nitriding gas at elevated temperatures. The plasma is created by subjecting the nitridi... | 01/14/1997 |
