Quotables
"The production of too many useful things results in too many useless people."
Karl Marx
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 |
| 7377477 | Product forming molds and methods to manufacture same Product forming molds have surfaces conformally coated with a coating composite comprising superabrasive particles. In one embodiment, the mold surface is plated (electrolessly or electrolytically) or coated with a metal having superabrasive particles dispersed ther... | 05/27/2008 |
| 7275397 | Method of molding a silica article Disclosed are high temperature free-flow mold for the production of near net-shape silica articles and method for the production of near net-shape silica articles. The mold is preferably made of graphite, preferably coated with SiC on the surfaces of the mold cavity... | 10/02/2007 |
| 7195668 | Crucible for the growth of silicon single crystal and process for the growth thereof A crucible for the growth of single crystals by the Czochralski method which can enhance the productivity, yield and quality of crystal and a single crystal growing method, wherein the crucible has an inner bottom surface, the profile of which has at least one raise... | 03/27/2007 |
| 6941774 | Optical fiber preform-heating furnace The present invention provides an optical fiber preform-heating furnace that is simple in its structure and excellent in uniformity of the temperature distribution in a circumferential direction of an optical fiber preform. The optical fiber preform-heating furnace ... | 09/13/2005 |
| 6928838 | Apparatus and method for forming silica glass elements The forming apparatus has top and bottom die assemblies which form a heated silica glass material by press forming. These top and bottom die assemblies include, respectively, mold dies, which are made of isotropic carbon, and core molds, which are made of vitrified ... | 08/16/2005 |
| 6848274 | Apparatus for forming glass elements Provided is an apparatus for forming glass elements, which includes top and bottom die assemblies, each of the die assemblies comprising a core mold, a mold die which supports the core mold, and a die plate, and a glass material being interposed between the top and ... | 02/01/2005 |
| 6845636 | Apparatus for dehydrating and consolidating an optical fiber preform and method of the same A dehydration and consolidation furnace and a dehydration and consolidation method in which gas in a chamber does not leak to a furnace body room and gas in a furnace body room does not leak into a chamber is provided. A furnace of one embodiment of this invention h... | 01/25/2005 |
| 6776007 | Method of molding a glass composition into an optical element A mold has a moling surface of a material containing silicon carbide and/or silicon nitride as a main component and a carbon thin film formed on the molding surface to prevent fusion sticking. A glass substance which has a sag point not higher than 565° C. and a pr... | 08/17/2004 |
| 6742362 | Coating for tools used to process heat treated glass The invention relates to a coating for tools that are used to process heat treated glass, e.g., molten glass or the like, to reduce the adhesion of said glass. The coating consists at least partially of a system of carbon-based layers and/or hard materials containin... | 06/01/2004 |
| 6668592 | Optical fiber drawing furnace having adjustable partitions A furnace for drawing an optical fiber provided with a muffle tube (10) and inner tubes (5,5') connected to the upper end of the core tube, wherein a preform (1) supported by a dummy rod (2) at the upper part thereof is disposed inside the muffle tube (10... | 12/30/2003 |
| 6658895 | Carbon nitride coating for optical media discs The disclosure is for a film coating which yields increased life for optical media molds and the method and apparatus for making such a film. The film is a carbon nitride layer of 0.5 to 5.0 microns thickness with 2% to 45% nitrogen coated on an underlaye... | 12/09/2003 |
| 6564584 | Process for manufacturing glass optical elements Processes for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is floated by a gas blow and the heated and softened glass material is trans... | 05/20/2003 |
| 6560994 | Mold used for molding glass optical elements process for preparation of glass optical elements and method for rebirth of mold Disclosed is a mold including upper and lower molds for obtaining glass optical elements by press molding a glass molding material softened by heat, in which either one of the upper and lower molds is made of a ceramic matrix and the matrix has no surface... | 05/13/2003 |
| 6558308 | AVS melting process The Advanced Vitrification System (AVS) Melting Process is a process for vitrification of waste in a disposable canister. In the process, waste is dropped into the disposable canister from the top. While the waste is being dropped into the disposable cani... | 05/06/2003 |
| 6546760 | Optical fiber drawing furnace with a zig zag heating element There is provided an optical fiber drawing furnace capable of drawing an optical fiber having small non circularity, which drawing furnace includes a muffle tube, in which an optical fiber preform is supplied, a heater surrounding the muffle tube, a plura... | 04/15/2003 |
| 6505484 | Forming method of silica glass and forming apparatus thereof A silica glass forming method is a method of pressing a synthetic silica bulk having at least a set of opposed surfaces, on the surfaces under a high temperature condition by a presser, wherein an elastic member with permeability is placed between the pre... | 01/14/2003 |
| 6485404 | Advanced vitrification system improvements A process of making vitrified waste in a crucible and inserting the crucible and vitrified waste into an outer container after vitrification. The outer container is then sealed.... | 11/26/2002 |
| 6446933 | Film on a surface of a mold used during semiconductor device fabrication A film is provided on a mold used during semiconductor device fabrication through surface modifications to the mold to provide non-stick characteristics and a mold surface that is resistant to abrasion or wear. Such surface modifications are particularly ... | 09/10/2002 |
| 6357262 | Apparatus and method for reducing scratching when bending glass sheets A roller assembly for use in a glass bending machine comprises a base bracket, a bending roller rotatably mounted on said base bracket, the bending roller having a three-piece construction comprises a central hub having an annular outer surface, opposed s... | 03/19/2002 |
| 6314764 | Method of manufacturing a 1-inch diameter glass substrate for a magnetic disk A method of manufacturing a 1-inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using nitrogen ions is per... | 11/13/2001 |
| 6314763 | Method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disk A method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using nitrogen ions is p... | 11/13/2001 |
| 6311523 | Process for forming a glass sheet A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature above ... | 11/06/2001 |
| 6257023 | Fiber optic draw furnace having a heating element and a furnace shell, featuring rigidified high purity graphite felt insulation therebetween The present invention provides an improvement to a fiber optic draw furnace having a heating element (22) arranged inside a furnace shell (20) for drawing an optical fiber (F) from a preform (P). The fiber optic draw furnace (10) has one or more pieces of... | 07/10/2001 |
| 6238197 | Injection mould An injection mould for manufacturing plastic objects generally includes: two mould parts mutually movable between a closed position and an open position, which mould parts bound in closed position a mould cavity into which in the closed position heated plastic... | 05/29/2001 |
| 6205819 | Method for vacuum fusion bonding An improved vacuum fusion bonding structure and process for aligned bonding of large area glass plates, patterned with microchannels and access holes and slots, for elevated glass fusion temperatures. Vacuum pumpout of all components is through the bottom... | 03/27/2001 |
| 6101845 | Process for forming a glass sheet A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature a... | 08/15/2000 |
| 6094942 | Method and apparatus for reducing tin defects in float glass The present invention provides a method of reducing tin defects in flat glass made by the float process. In the float process, molten glass is delivered onto a pool of molten tin within an enclosed chamber and formed into a glass ribbon. Oxygen gas dissol... | 08/01/2000 |
| 6082140 | Fusion bonding and alignment fixture An improved vacuum fusion bonding structure and process for aligned bonding of large area glass plates, patterned with microchannels and access holes and slots, for elevated glass fusion temperatures. Vacuum pumpout of all the components is through the bo... | 07/04/2000 |
| 6044663 | Impregnated vitreous (glassy) carbon graphite liner and heating element for a fiber optic draw furnace The present invention provides an improvement to a fiber optic draw furnace for drawing an optical fiber from a preform. The fiber optic draw furnace has a heating element having a shape for enclosing and heating the preform, and has a graphite liner havi... | 04/04/2000 |
| 6038888 | Apparatus for delivering glass gobs in a glass forming machines A glass gob delivery system for conveying gobs of molten glass from an oscillating gob delivery chute to a blank mold of a glass container forming machine of the I.S. type. The delivery system comprises an elongate trough that extends downwardly from an i... | 03/21/2000 |
| 6009725 | Process for manufacturing glass optical elements Processes are disclosed for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is floated by a gas blow and the heated and softened glass mat... | 01/04/2000 |
| 5970752 | High temperature, grooved filament guide which is coated with a thermally conductive material A flame attenuation apparatus for forming flame attenuated fibers, preferably glass fibers, includes means for providing continuous filaments; burner means for providing a high temperature, high energy stream of combustion gases; means for feeding the con... | 10/26/1999 |
| 5931984 | Device for drawing down an optical fiber preform A device for drawing down an optical fiber preform (2) connected at one end to a feed rod (3) having an equal or smaller diameter. A chamber (11) in which the preform is drawn has an upper part (11A) with an opening (12). The opening engages the preform t... | 08/03/1999 |
| 5902369 | Carbon coated metallic mold for making a glass plate In advance of carbon coating, by injecting ion into the shaped surface of metallic mold made of super-hard materials, it becomes possible to increase the adhesiveness of the carbon coat onto the mold material, and to increase the life of the mold. In a me... | 05/11/1999 |
| 5873921 | Process for manufacturing glass optical elements Processes for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is floated by a gas blow and the heated and softened glass material is trans... | 02/23/1999 |
| 5855641 | Mold for molding optical element Molds for press molding an optical element of glass are disclosed. Proposed are: (1) A mold contains oxygen at the interface between a mold base of the mold and a carbon film formed at least on the molding surface of the mold base with an oxygen amount of... | 01/05/1999 |
| 5772715 | System and method for processing sheet glass A processing system (20,20') for processing sheet glass G includes a housing (22) and at least one slit seal (38i,38i',38e,38e') constructed to permit continuous passage of sheet glass in an efficient manner without fluttering. The slit seal functions as ... | 06/30/1998 |
| 5769920 | Graphite guide rings A guide-ring comprises a graphite body and a mechanically attached insert, preferable made of metal. The insert and body form a guide ring supporting a split neck-ring used during glass container manufacturing. The graphite body avoids the need for separa... | 06/23/1998 |
| 5725629 | Guide ring for I.S. glass forming machine A self-lubricating ring assembly (10) for use in forming a finish portion (F) of a hollow formable glass parison (P), the neck ring assembly (10) having an opposed pair of part cylindrical metallic neck ring sections (22a, 22b) that can be opened and clos... | 03/10/1998 |
| 5713979 | Heat treatment facility for synthetic vitreous silica bodies An induction-heated furnace, suitable for heat treatment of synthetic silica bodies, under conditions of high purity, includes a tubular susceptor (1) disposed with its axis vertical and an induction coil (3) for raising the temperature of the susceptor. ... | 02/03/1998 |
