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| Number | Title | Issue Date |
| 8117867 | Process for producing spherical inorganic particle A process for producing spherical inorganic particles which have high flowability, can be incorporated in a high proportion, and are useful as a filler for composite substrates such as printed wiring boards and encapsulating materials. Also provided is a process for... | 02/21/2012 |
| 7328594 | Processes for the production of glass article A process for stably and efficiently producing quality glass articles such as preforms at high yields, and a process for producing an optical device from the preform obtained by the above process. In the process for producing a glass article, molten glass gobs havin... | 02/12/2008 |
| 7297646 | Ceramics comprising AlO, REO, ZrOand/or HfO, and NbOand/or TaOand methods of making the same Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) REO, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the ... | 11/20/2007 |
| 7240518 | Process for producing spherical glass The apparatus for producing glass beads of the present invention comprises a melting pot 2 for heating and melting glass, a nozzle 2A for dripping molten glass 4 in the melting pot 2, which is disposed at the bottom of the melting pot ... | 07/10/2007 |
| 7175887 | Method of coating a fluorocarbon resin A first member is configured to undergo sliding contact with a surface of a second member. The surface of the first member is roughened by irradiating the surface of the first member with a laser to form first recesses in the surface of the first member. The surface... | 02/13/2007 |
| 7127917 | Method of manufacturing molded glass objects, method of manufacturing press molded articles, and method of manufacturing glass optical elements Disclosed is a method for manufacturing a molded glass object. In the method, glass melt is made to flow from the front end portion of a nozzle; a prescribed weight of the glass melt flowing out is received by a glass melt receiving portion provided on a forming mol... | 10/31/2006 |
| 7093463 | Method and device for producing powders that consist of substantially spherical particles A method for producing powders that consist of substantially spherical particles from a material such as glass, ceramics or plastic that produces a highly viscous melt that solidifies at a glass transition temperature Tg or at a solidification temperature... | 08/22/2006 |
| 7059153 | Method for producing glass powders A powder of solid and spherical glass particles is easily manufactured by subjecting a mixed solution of a raw material oxide powder comprising a glass network-forming element, and an aqueous solution of a water-soluble compound comprising a glass-forming element ot... | 06/13/2006 |
| 6993934 | Dental glass powders Dental glass powders, methods for producing the powders and dental compositions including the glass powders. The powders preferably have a well-controlled particle size, narrow size distribution and a spherical morphology. The method includes forming the particles b... | 02/07/2006 |
| 6758062 | Plasma display panel production method The present invention intends to provide a manufacturing method for a plasma display panel, so as to overcome problems associated with a withstanding voltage of a dielectric glass layer. Glass particles have angular shapes after grinding with a grinder, but as the s... | 07/06/2004 |
| 6742364 | Method of manufacturing micro glass optical element A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as... | 06/01/2004 |
| 6358531 | Method for preparing porous shells or gels from glass particles A method is provided for preparing shells, concentric shells or porous, homogenous gels from alkali borate glass particles at low temperatures (i.e. room temperature or less than above 100° C.). The alkali borate glass particles contain one or more catio... | 03/19/2002 |
| 5849055 | Process for producing inorganic microspheres A process for producing inorganic microspheres (solid spheres or hollow spheres), which comprises pulverizing a material by wet pulverization to an average particle size of at most 5 μm to obtain a slurry of a pulverized powder material, spraying the slu... | 12/15/1998 |
| 5833728 | Method for the preparation of vitreous hollow microspheres Provided is a method for the efficient preparation of fine hollow spherical glassy bodies having a high strength and excellent whiteness from a volcanic vitreous deposit as the starting material. The fine hollow spherical glassy bodies as desired can be p... | 11/10/1998 |
| 5665135 | Method for fabricating preforms for molded lenses Optical glass of cubic, spherical or polygonal shape is fire polished on a graphite or Cr2 O3, concave surface with a surface roughness of 100 Angstroms or less. The optical glass having a surface roughness of 400 Angstroms or less i... | 09/09/1997 |
| 5637127 | Plasma vitrification of waste materials This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-tra... | 06/10/1997 |
| 5611833 | Method and apparatus for producing spheroidal glass particles One forms spherical or spheroidal glass particles by entraining a powder of glass particles in a carrier gas and injecting the entrained particles into the center of the flame of an oxygen-fuel burner. Separate conduits carry fuel, such as natural gas, an... | 03/18/1997 |
| 5395412 | Method and apparatus for the treatment of fiber pieces A method and apparatus for the treatment of fiber pieces, with which the fiber pieces (24) in a gas/solid mix are fed through a transport line (11) into a heating device (14). Inside the heating device (14) the exposed ends of the fiber pieces (24) are ro... | 03/07/1995 |
| 5227239 | Production of hollow aerogel microspheres A method is described for making hollow aerogel microspheres of 800-1200 μ diameter and 100-300 μ wall thickness by forming hollow alcogel microspheres during the sol/gel process in a catalytic atmosphere and capturing them on a foam surface containing ... | 07/13/1993 |
| 5213598 | Preparation of vitreous enamels and manufacture of enamel bodies In order to prepare particles of a vitreous enamel for use in forming a vitreous enamel body by fusing the particles together to form the body, at least one enamel frit and at least one non-vitreous additive are formed into an agglomerated granular feedst... | 05/25/1993 |
| 5198009 | Method of manufacturing glass beads for use in thermionic gas chromatographic detectors Alkali metal-containing glass beads for use as sources in thermionic detectors for gas chromatography are manufactured by a method which produces reproducible beads of preselected sizes. A glass tube of the desired composition is reduced to capillary size... | 03/30/1993 |
| 5188649 | Process for vitrifying asbestos containing waste, infectious waste, toxic materials and radioactive waste Material, such as, for example, sealed double bags of asbestos containing waste or ash from infectious waste or toxic material or radioactive waste, is transferred into a glass melt of a furnace. Gas bubbles released into the melt form a gas curtain which... | 02/23/1993 |
| 5143534 | Heat processing of particulate material with a quenching gas which swirls around the processing zone The invention relates to a method of heat processing particles of glass. A first current of a mixture of a combustible gas and a gas capable of oxidizing the combustible gas is introduced into a substantially cylindrical chamber from its lower end. The co... | 09/01/1992 |
| 5124091 | Process for producing fine powders by hot substrate microatomization A process for producing fine powder, which includes entraining a starting powder material in a carrier gas, injecting the starting powder material using the carrier gas into a high temperature jet to form a high velocity stream of molten droplets, fragmen... | 06/23/1992 |
| 5100451 | Method of forming vitreous enamel from spherulized particles A method of manufacturing a vitreous enamel body includes forming particles of vitreous material and melting to fuse the particles together to form the body. The particles of vitreous material are spherulized and are selected as to their granulometric pro... | 03/31/1992 |
| 4997485 | Aggregate for concrete or a similar building material and a method of producing such aggregate An aggregate is produced from waste glass which is initially crushed to a granular state and is thereafter roughened at its surfaces and rounded at its edges. This result is obtained by a grinding treatment. The aggregate can be used for concrete. It allo... | 03/05/1991 |
| 4966617 | Process of manufacturing vitreous beads A process of manufacturing vitreous beads in which particulate feedstock is delivered to a heated chamber and passed along it so that the feedstock is heated and converted to vitreous beads whereafter the beads are collected, characterised in that the cha... | 10/30/1990 |
| 4961770 | Process for producing spherical glass particles A composition is disclosed consisting essentially of substantially spherical glass particles having a diameter of less than about 25 micrometers. A process is disclosed for producing substantially spherical particles. The process involves providing irregu... | 10/09/1990 |
| 4904292 | Spherulizing furnace and process of manufacturing vitreous beads A spherulizing furnace for manufacturing vitreous beads includes feed means for delivering particulate feedstock, a spherulizing zone in which the feedstock particles may be heated and converted to vitreous beads, and means for collecting the resulting be... | 02/27/1990 |
| 4894081 | Spherulizing furnace A spherulizing furnace for manufacturing vitreous beads, including a chamber; means for heating the chamber; feed means for delivering a particulate feedstock to one end of the chamber; and means for collecting vitreous beads from another end of the chamb... | 01/16/1990 |
| 4816067 | Process for producing fine spherical particles A process is disclosed for producing fine spherical particles from a fine powder feed material which comprises entraining the powder feed material in a carrier gas, introducing the feed material and carrier gas through a powder port into a high temperatur... | 03/28/1989 |
| 4781741 | Process for producing spherical glass particles A process is disclosed for producing spherical glass particles. The process involves forming a high velocity stream of molten droplets of glass, directing said stream toward a repellent surface, impacting the molten droplets against the surface to form fr... | 11/01/1988 |
| 4769057 | Fluidized bed cellulation process Sintered particles of pulverulant glass and cellulating agent are coated with a parting agent and introduced into a fluidizing vessel. Gas is passed upwardly through the fluidizing vessel at a velocity sufficient to form a fluidized bed of these sintered ... | 09/06/1988 |
| 4749398 | Apparatus for making spherical particles An apparatus for spheridizing irregularly shaped minute particles, and the spheres produced thereby, in which a thin carbonaceous coating is applied to the particles in a unique manner, and in a preferred embodiment the particles are then advanced through... | 06/07/1988 |
| 4715878 | Process for producing finely divided spherical glass powders A process is disclosed for producing finely divided spherical glass powders. The process comprises forming a coating of a surface active agent which can be of the nonionic or anionic type on the surfaces of the particles of a glass powder, feeding the coa... | 12/29/1987 |
| 4643753 | Method for making spherical particles A process and apparatus for spheridizing irregularly shaped minute particles, and the spheres produced thereby, in which a thin carbonaceous coating is applied to the particles in a unique manner, and in a preferred embodiment the particles are then advan... | 02/17/1987 |
| 4528014 | Device for the production of glass drops from a glass melt containing radioactive waste A device is described for the production of glass drops from a glass melt ntained in a melting furnace and containing radioactive waste. The device comprises a horizontally extending pipe adapted at one end to be connected to the melting furnace so as to ... | 07/09/1985 |
| 4487620 | Method and apparatus for manufacturing rounded vitreous beads A method of forming rounded vitreous beads in which particles of bead forming material entrained in a gas stream having comburent and combustible components are projected from a burner head and the gas is burnt. A first component of the combustible gas mi... | 12/11/1984 |
| 4475936 | Apparatus for the heat processing of particulate materials A vortex combustion furnace (1) for the production of glass beads or the like is generally cylindrical and has an outlet flue (24) at its upper end. A burner (13) at the lower end burns a gas/air mixture. Secondary air is introduced into the chamber throu... | 10/09/1984 |
| 4472185 | Method of producing a cellular ceramic body There is disclosed a method of producing a cellular ceramic body of high mechanical strength and exhibiting a density less than 15 lbs/ft3. A crystal-containing gel, prepared from a selected, synthetic, lithium and/or sodium, water-swelling mic... | 09/18/1984 |
