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| Number | Title | Issue Date |
| 7615096 | Method for manufacturing metal nanoparticle A method for manufacturing a metal nanoparticle is provided. The method includes steps of: a) providing a metal salt solution, b) providing a reducing agent, c) providing a protecting agent, d) providing an alkaline solution, e) mixing the salt solution, the reducin... | 11/10/2009 |
| 7431070 | Rare earth magnet alloy ingot, manufacturing method for the same, R-T-B type magnet alloy ingot, R-T-B type magnet, R-T-B type bonded magnet, R-T-B type exchange spring magnet alloy ingot, R-T-B type exchange spring magnet, and R-T-B type exchange spring bonded magnet One object of the present invention is to provide a rare earth magnet alloy ingot, which has improved magnetic properties. In order to achieve the object, the present invention provides a rare earth magnet alloy ingot, wherein the rare earth magnet alloy ingot compr... | 10/07/2008 |
| 7384448 | Method and apparatus for producing nano-particles of silver Apparatus for producing silver nano-particle material comprises a furnace and a crucible positioned within the furnace, the crucible containing a quantity of precursor material, the furnace heating the quantity of precursor material contained in the crucible to vapo... | 06/10/2008 |
| 7374840 | Centrifugally atomized zinc alloy powder for alkaline batteries This invention relates to centrifugal atomized zinc alloy powders for alkaline batteries consisting of (a) 0.005-2% by weight of indium, and 0.005-0.2% by weight of either one of Al and Bi, or (b) 0.005-2% by weight of indium, and 0.005-0.2% by weight of Bi, and 0.0... | 05/20/2008 |
| 7291200 | Monodisperse spherical metal particles and manufacturing method therefor It is an object of the present invention to provide spherical metal particles having excellent monodispersity. The present invention relates to a method of manufacturing monodisperse spherical metal particles characterized by passing liquid metal through a porous me... | 11/06/2007 |
| 7192466 | Method for preparing nuclear metal or metal alloy particles Nuclear metal or alloy particle preparation method and device; said device comprising: means to prepare a fluid mass of the metal or alloy by melting; means to put the fluid mass of the metal or metal alloy in the ... | 03/20/2007 |
| 7169350 | Method and apparatus for making a thixotropic metal slurry An apparatus for producing a thixotropic metallic melt by simultaneously controlledly cooling and stirring the melt to form solid particles of a first phase suspended in a residual liquid second phase. Vigorous stirring of the metallic melt results in the formation ... | 01/30/2007 |
| 7131597 | Atomization technique for producing fine particles This disclosure relates to a novel process for atomizing a liquid material or a mixture of liquid materials. More specifically, this disclosure advances the art by utilizing the inertial forces created in an elevated acceleration environment to further miniaturize a... | 11/07/2006 |
| 7097806 | Rapid surface cooling of solder droplets by flash evaporation A mist of liquid coolant is introduced into the path of atomized, molten, solder droplets. The mist and other conditions within the chamber are engineered to enable the liquid coolant droplets in the mist to contract the surfaces of molten solder droplets and be fla... | 08/29/2006 |
| 7044435 | System for influencing the rheological properties of a transportable material A system for influencing the rheological properties of a transportable material, especially a free-flowing, pasty or bulk product is associated, or can be associated, with a machine for processing or treating the transportable material in which the transportable mat... | 05/16/2006 |
| 6991670 | Method and apparatus for making a thixotropic metal slurry An apparatus for producing a thixotropic metallic melt by simultaneously controlledly cooling and stirring the melt to form solid particles of a first phase suspended in a residual liquid second phase. Vigorous stirring of the metallic melt results in the formation ... | 01/31/2006 |
| 6706324 | Method of forming nano-crystalline structures and product formed thereof A product in which at least a portion of the product has a nanocrystalline microstructure, and a method of forming the product. The method generally entails machining a body in a manner that produces chips consisting entirely of nano-crystals as a result of the mach... | 03/16/2004 |
| 6676860 | Method for the formation of solid particles from a liquid Solid particles are formed from a liquid by rotating a slinger about a vertical axis within a chamber to sling liquid droplets from vertically spaced annular rows of cusps disposed on an outer periphery of the slinger. An air flow is established within th... | 01/13/2004 |
| 6432160 | Method and apparatus for making a thixotropic metal slurry An apparatus for producing a thixotropic metallic melt by simultaneously controlledly cooling and stirring the melt to form solid particles of a first phase suspended in a residual liquid second phase. Vigorous stirring of the metallic melt results in the... | 08/13/2002 |
| 6423113 | Continuous fluid atomization of materials in a rapidly spinning cup Fine powders are made from molten metals and alloys on a continuous basis. A rapidly spinning shallow cup has an atomizing fluid such as water, oil or any other hydrocarbon supplied to the cup to form a thin sheet or layer which is distributed on the inne... | 07/23/2002 |
| 6068800 | Production of nano particles and tubes by laser liquid interaction The present invention is a process and apparatus for producing nano-scale particles using the interaction between a laser beam and a liquid precursor solution. There are two embodiments. The first embodiment includes the use of a solid substrate during th... | 05/30/2000 |
| 5830257 | Manufacturing method for alumina-dispersed reinforced copper A manufacturing method for an alumina-dispersed reinforced copper alloy according to the invention is an improved method which is capable of manufacturing efficiently alumina-dispersed reinforced copper having both good electro-conductivity used for wire-... | 11/03/1998 |
| 5770126 | High producing rate of nano particles by laser liquid interaction The present invention is a process and apparatus for producing nano-scale particles using the interaction between a laser beam and a liquid precursor solution. There are two embodiments. The first embodiment includes the use of a solid substrate during th... | 06/23/1998 |
| 5731564 | Method of operating a centrifugal plasma arc furnace A centrifugal plasma arc furnace is used to vitrify contaminated soils and other waste materials. An assessment of the characteristics of the waste is performed prior to introducing the waste into the furnace. Based on the assessment, a predetermined amou... | 03/24/1998 |
| 5616432 | Electrochemical hydrogen storage alloys and batteries fabricated from Mg containing base alloys A disordered multicomponent MgNi based electrochemical hydrogen storage material having a microstructure including a substantial volume fraction characterized by intermediate range order and exhibiting extraordinarily high storage capacity and methods of ... | 04/01/1997 |
| 5482532 | Method of and apparatus for producing metal powder The invention provides a method of producing metal powders which is less likely permit variations in cooling rate, ensures rapid solidification at a great cooling rate and readily gives fine particles, and a production apparatus for the method. The method... | 01/09/1996 |
| 5409521 | Slag granulation A granulator comprises a rotary atomiser (1) on to which the molten material to be granulated is poured in a stream. The rotation of the atomiser (1) causes the molten material to be ejected therefrom in the form of globules. No fluid jets are used to bre... | 04/25/1995 |
| 5352267 | Method of producing metal powder A cooling liquid is injected into and supplied to a cooling tubular body along its inner periphery to form a cooling liquid layer flowing down the inner peripheral surface of the body while revolving. A molten metal is then injected into the cooling liqui... | 10/04/1994 |
| 5198026 | Colored zinc powder, its method of production and method for producing colored article Zinc powder, which contains a coloring element, e.g., Ti, Mn, or V, is heated to a temperature of from 350° to 700° C. so as to oxidize the surface of the powder and hence to develop such colors as brown, navy blue, blue, greenish-brown, green, and coff... | 03/30/1993 |
| 5190701 | Method and equipment for microatomizing liquids, preferably melts Method and apparatus for atomizing a liquid to form a fine powder. The method includes the steps of mixing the liquid with a first fluid medium jet and projecting this first fluid medium jet into a barrier means which comprises a solid body or a second fl... | 03/02/1993 |
| 4867785 | Method of forming alloy particulates having controlled submicron crystallite size distributions Disclosed is a controlled pressure melt spinning method of rapidly solidifying alloys to obtain a solid alloy of controlled mean crystallite size, narrow crystallite distribution, and a fine grain microstructure.... | 09/19/1989 |
| 4863509 | Method and apparatus for producing and further processing metallic substances Liquid metal undergoes rapid rotational motion in an induction field and utilizes the resultant centrifugal forces to extend the metal in the form of a rotating film, the film becoming progressively thinner, along a baffle surface located in the induction... | 09/05/1989 |
| 4824478 | Method and apparatus for producing fine metal powder A method and apparatus for producing fine metal powder. The method includes the steps of forming a centrifugally maintained annulus of a liquified gas quench medium, forming molten metal drops within the eye of the annulus, urging the drops into the quenc... | 04/25/1989 |
| 4764212 | Thermoelectric material for low temperature use and method of manufacturing the same This invention relates to a method of manufacturing thermoelectric material which has the steps of quenching a thermoelectric alloy in a molten state at a quenching rate higher than 103 ° C./sec into a membrane or powdery form and subjecting t... | 08/16/1988 |
| 4705656 | Method for producing spherical metal particles A method for producing spherical metal particle uses a molten metal reservoir for containing a molten metal, a rotary drum having a number of teeth onto which the molten metal is to be adhered one after another and a driving means for rotating the rotary ... | 11/10/1987 |
| 4702765 | Method of making selenium-containing amalgam alloys for dental restoration Selenium-containing amalgam alloys for dental restoration comprises 0.1-50% by weight of any one of the following alloy powders (A), (B) and (C) mixed with 50-99.9% by weight of the following amalgam alloy powders (D). (A): Silver alloy powders containing no l... | 10/27/1987 |
| 4618427 | Method of treating and breaking up a liquid with the help of centripetal force A hollow body, a rotor, with holes in the bottom and the side wall, is immersed down into a liquid and rotated with the help of a shaft suspended over the liquid. The liquid, which enters the rotor through the hole in the bottom, will, on account of the c... | 10/21/1986 |
| 4617200 | Process for making salt coated magnesium granules There is disclosed a process for the preparation of substantially uniform granules of magnesium coated with a mixed salt composition from a eutectic melt. The process comprises the steps of forming globules of magnesium by shear action in a molten eutecti... | 10/14/1986 |
| 4613371 | Method for making ultrafine metal powder A fine amorphous metallurgical powder suitable for compacting and sintering into amorphous densified articles which consist essentially of a major portion by weight a transition metal or combination thereof and less than a minor amount of an additional co... | 09/23/1986 |
| 4482375 | Laser melt spin atomized metal powder and process A method of producing rapidly solidified metal powder utilizes a spinning metal source and a laser beam to melt the surface layer of the source and atomize it. The laser beam is directed at a glancing angle along the surface of the spinning metal source. ... | 11/13/1984 |
| 4474604 | Method of producing high-grade metal or alloy powder A method of producing high-grade metal or alloy powder, improved to eliminate undesirable inclusions and to reduce the production cost. A solid electrode material made of a metal or alloy, having a composition substantially equal to the composition of aim... | 10/02/1984 |
| 4473514 | Process for the manufacture of steel balls, particularly balls for rolling element bearings The process comprises at least a first phase for separating a plurality of particles of molten steel from a bath of molten steel, a second phase for subjecting these particles, while still in the fluid state, to a first system of forces acting on the oute... | 09/25/1984 |
| 4394332 | Crucibleless preparation of rapidly solidified fine particulates A mass of normally solid material, e.g. metal or metal alloy, which at a temperature within 25 percent of its equilibrium melting point °K has a surface tension of 10 to 2500 dynes/cm. and a viscosity of 0.001 to 1 poise, is changed into fine solid parti... | 07/19/1983 |
| 4127426 | Method of making electrical conductors of aluminum-iron alloys The invention concerns electrical conductors of Al-Fe alloys containing from 0.5 to 5% of Fe. Conductors having a highly fibered structure which are stable up to 350° C and have a range of mechanical and electrical characteristics which are remarkable an... | 11/28/1978 |
| 4124664 | Formation of filaments directly from an unconfined source of molten material The invention comprises methods and apparatus for forming filamentary material directly from a pendant drop of molten material, and provides for a significant improvement in the quench rate. A typical method of making filamentary material according to the... | 11/07/1978 |
