| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 065170300 | With shaping of particulate material and subsequent fusing of particles | 43 |
| 20080196449 | Refractory ceramic composite and method of making - A zircon composition having a multi-modal particle size distribution is disclosed. The multi-modal zircon composition comprises greater than about 40 parts by weight of a coarse zircon component having a median particle size of from greater than about 3 μm to about 25 μm, and less than about 60 parts by weight of a fine zircon component having a median particle size of 3 μm or less. Methods for manufacturing a green body and a fired refractory ceramic body comprising the multi-modal zircon composition are also disclosed. | 08-21-2008 |
| 20090025424 | METHOD OF MAKING CRAMIC ARTICLES - Method of making an article, the method comprising coalescing a plurality of the glass particles. The article may comprise glass, glass-ceramic, and/or crystalline ceramic. Examples of articles include kitchenware (e.g., plates), dental brackets, and reinforcing fibers, cutting tool inserts, abrasives, and structural components of gas engines, (e.g., valves and bearings). | 01-29-2009 |
| 20100071414 | Manufacturing method for a thermal head - Provided is a manufacturing method for a thermal head, which includes: a concave portion forming step of forming a plurality of concave portions on a surface of a collective substrate; a bonding step of thermally fusion bonding an insulating film to the surface of the collective substrate including the plurality of concave portions formed thereon in the concave portion forming step; and a heating resistor forming step of forming a plurality of heating resistors on the insulating film so as to be opposed to the plurality of concave portions, in which the concave portion forming step includes setting any one of the plurality of concave portions as a reference, and setting sizes of the plurality of concave portions other than the any one of the plurality of concave portions so as to become larger as a distance from the any one thereof increases. | 03-25-2010 |
| 20100126217 | METHOD FOR PRODUCING A CYLINDER OF QUARTZ GLASS USING A HOLDING DEVICE AND APPROPRIATE HOLDING DEVICE FOR PERFORMING THE METHOD - A known method for producing a cylinder of quartz glass comprises a method step in which a porous SiO | 05-27-2010 |
| 20100192632 | Resorbable macroporous bioactive glass scaffold and method of manufacture - A method of manufacturing a resorbable, macroporous bioactive glass scaffold comprising approximately 24-45% CaO, 34-50% SiO | 08-05-2010 |
| 20110120189 | Method for producing a component with a layer of transparent quartz glass - In a known method for producing a component with a layer of transparent quartz glass, comprising: applying particles of synthetically produced quartz glass to a base body made of quartz glass and sintering the particles so as to form the quartz glass layer. Starting therefrom, in order to permit a comparatively inexpensive and reproducible production of a component with at least one layer of transparent quartz glass that is distinguished by ultrahigh purity and the absence of bubbles, it is suggested according to the invention that at least part of the SiO | 05-26-2011 |
| 20120131954 | APPARATUS AND METHOD FOR MANUFACTURING VITREOUS SILICA CRUCIBLE - There are provided an apparatus and a method for manufacturing a vitreous silica crucible which can prevent the deterioration of the inner surface property in the manufacturing process of a vitreous silica crucible. The apparatus includes a mold defining an outer shape of a vitreous silica crucible, and an arc discharge unit having electrodes and a power-supply unit, wherein each of the electrodes includes a tip end directed to the mold, the other end opposite to the tip end, and a bent portion provided between the tip end and the other end. | 05-31-2012 |
| 20120137732 | METHOD OF MANUFACTURING GRANULATED SILICA POWDER, METHOD OF MANUFACTURING VITREOUS SILICA CRUCIBLE - The present invention provides a method of manufacturing a vitreous silica crucible having a transparent layer by use of waste vitreous silica, and silica powder suitable for the manufacturing. According to the present invention, there is provided a method of manufacturing granulated silica powder comprising a process for pulverizing waste vitreous silica generated in the manufacturing process of a crucible to form silica fine powder having an average particle diameter of 100 μm or less, and a process for granulating the silica fine powder to obtain granulated silica powder having an average particle diameter of 50 μm or more under helium atmosphere. | 06-07-2012 |
| 20120167623 | METHOD AND APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE - Accurate temperature measurement during manufacturing a vitreous silica crucible is enabled. The present invention provides an apparatus for manufacturing a vitreous silica crucible including: a mold for forming a silica powder layer by supplying silica powder therein; an arc discharge unit having carbon electrodes and a power supply unit and for heating and fusing the silica powder layer by arc discharge; and a temperature measurement unit for measuring temperature of a fused portion in the mold, wherein the temperature measurement unit is an radiation thermometer for measuring temperature by detecting radiation energy of a wavelength of 4.8 to 5.2 μm. | 07-05-2012 |
| 20120167624 | METHOD OF MANUFACTURING VITREOUS SILICA CRUCIBLE - The present invention provides a method of manufacturing a vitreous silica crucible including: a silica powder supplying process of supplying a material silica powder into a mold for molding a crucible, to form a silica powder layer, and an arc fusing process of arc fusing the silica powder layer by arc discharge generated by carbon electrodes, wherein the arc fusing process includes processes of measuring a temperature of the silica powder layer, and controlling a vitreous silica fused state based on a reference temperature which is a temperature at a local maximum point which appears first in the arc fusing process. | 07-05-2012 |
| 20120167625 | METHOD OF MANUFACTURING VITREOUS SILICA CRUCIBLE - The present invention provides a method of manufacturing a vitreous silica crucible including: a silica powder supplying process of supplying a material silica powder into a mold for molding a vitreous silica crucible, to form a silica powder layer, and an arc fusing process of arc fusing the silica powder layer by arc discharge generated by carbon electrodes, wherein the arc fusing process includes processes of measuring temperatures at measuring points provided on different heights of an inner surface of the silica powder layer while rotating the mold, and controlling the arc discharge to enable detection, at each measuring point, of a local maximum point which appears first in the arc fusing process. | 07-05-2012 |
| 20120272682 | APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE - During fabrication of a vitreous silica crucible, contamination of the vitreous silica crucible due to wear particles and debris of components of an apparatus for manufacturing a vitreous silica crucible is reduced by preventing damage and wear of the components of the apparatus due to silica fume. The apparatus for manufacturing a vitreous silica crucible is divided into a lower section for accommodating a mold and a mold driving system and an upper section for accommodating an arc electrode driving system, wherein a sectioning member including one or more communication paths for allowing penetration of arc electrodes, thereby the air flow is controlled so as to reduce exchange between gas in the upper section and gas in the lower section. | 11-01-2012 |
| 20130025319 | METAL AND GRAPHITE MOLD AND METHOD OF MAKING A CRUCIBLE - A mold for making a fused silica crucible includes a cylindrical can having an interior bore. A graphite insert is received in the bore and has an upper surface adapted to form the lower surface of the crucible while the interior bore of the can forms the side wall of the crucible. Silica grain is deposited in the mold while it rotates. Bores formed in the can above the insert and in the insert draw air through the silica during fusion. | 01-31-2013 |
| 20130160492 | POLISHED, HOT PRESSED, NET SHAPE CERAMICS - A method for making a smooth ceramic including loading ceramic powder to be densified into a hot press die, placing one or more spacers with a polished surface between a hot press punch and the ceramic powder, placing the die and punch into a hot press and hot pressing the ceramic powder, and removing a smooth ceramic shape that requires no subsequent polishing or processing and has a surface roughness of 5 nm RMS or better. The smooth ceramic shape may be transparent, and it may be spinel, magnesia, yttria, lutetia, scandia, YAG, any composites thereof, or any of their rare earth doped compounds. Also disclosed is the related smooth ceramic made by this process. | 06-27-2013 |
| 20140283552 | METHOD FOR MANUFACTURING VITREOUS SILICA CRUCIBLE - Accurate temperature measurement during manufacturing a vitreous silica crucible is enabled. The present invention provides an apparatus for manufacturing a vitreous silica crucible including: a mold for forming a silica powder layer by supplying silica powder therein; an are discharge unit having carbon electrodes and a power supply unit and for heating and fusing the silica powder layer by arc discharge; and a temperature measurement unit for measuring temperature of a fused portion in the mold, wherein the temperature measurement unit is an radiation thermometer for measuring temperature by detecting radiation energy of a wavelength of 4.8 to 5.2 μm. | 09-25-2014 |
| 20160107923 | EVAPORATOR AND METHOD FOR PRODUCING SYNTHETIC FUSED QUARTZ - A method for manufacturing quartz glass, wherein (a) an appropriate liquid starting material is evaporated by spraying it into a vertically arranged evaporation chamber, (b) the vaporous starting material is oxidized to form SiO | 04-21-2016 |
| 20160114425 | Method for Manipulating Microstructure and Grain Size in Laser Three-Dimensional Additive Manufacturing - Methods for modifying microstructure and grain size in three-dimensional additive manufacturing are disclosed, including generating electromagnetic radiation from an ultrafast laser, wherein the electromagnetic radiation comprises a wavelength, a pulse repetition rate, a pulse width, a pulse energy, and an average power; focusing the electromagnetic radiation into a focal region; using a powder delivery system to deposit one or more powders at the focal region of the electromagnetic radiation; and adjusting the pulse width, the pulse energy, and the average power of the ultrafast laser to modify the microstructure and grain size of an additively manufactured sample; wherein the average microstructure and grain size increases as the pulse width is increased and wherein the density of the additively manufactured sample increases as the pulse energy is decreased. Other embodiments are described and claimed. | 04-28-2016 |
| 20160115625 | METHOD OF MANUFACTURING COMPOSITE CRUCIBLE - A method of manufacturing a composite crucible includes: supplying mullite material powder to an upper region of a mold, and supplying second silica powder to a lower region provided below the upper region while rotating the mold; supplying third silica powder on an inner surface side of a layer made of the mullite material powder and the second silica powder; heating and fusing the mullite material powder, the second silica powder, and the third silica powder to form an opaque vitreous silica layer provided on the outer surface of the crucible, a transparent vitreous silica layer provided on an inner surface side of the crucible, and a mullite reinforcement layer provided on the outer surface side of an upper end portion of the crucible. | 04-28-2016 |
| 20160161377 | METHOD AND APPARATUS FOR PRODUCING A PELLET - Disclosed is a method and an apparatus for producing a pellet preferably intended for subsequent chemical analysis, wherein a material stream is melted, the molten material is shapelessly cooled and ground and at least some of the ground material stream is pressed into a pressed pellet. | 06-09-2016 |
| 065170400 | Including flame or gas contact | 16 |
| 20090139265 | Method and device for manufacturing silica glass | 06-04-2009 |
| 20090293545 | Method and apparatus for forming fused silica glass using multiple burners - A method for forming a silica glass blank includes generating soot using an array of soot producing burners, directing the soot along a first direction onto a bait, collecting the soot on the bait, imparting relative oscillatory motion having a repeat period between the array of soot producing burners and the bait along a second direction orthogonal to the first direction while collecting the soot, and offsetting the relative oscillatory motion by a selected distance along the second direction after each repeat period. | 12-03-2009 |
| 20100154474 | REDUCED STRIAE LOW EXPANSION GLASS AND ELEMENTS, AND A METHOD FOR MAKING SAME - The invention is directed to a method for reducing striae in ultra-low expansion glass, for example, silica-titania glass, by heat-treating the glass at temperatures above 1600° C. for a time in the range of 72-288 hours. The silica-titania glass is formed by substantially simultaneously forming, collecting and consolidating a silica-titania soot formed in one or a plurality of burners using silicon-containing feedstock and a titanium-containing feedstock. In one embodiment of the invention the glass is heat treated without forcing the glass to flow or “move”. The invention was found to reduce the magnitude of striae in an ultra-low expansion glass by at least 50%, and particularly reduces most of the “higher frequency” striae. | 06-24-2010 |
| 20110120190 | METHOD FOR PRODUCING QUARTZ GLASS USING A MIXED POWDER - A mixed quartz powder contains quartz powder and two or more types of doping element in an amount of from 0.1 to 20 mass %. The aforementioned doped elements include a first dope element selected from the group consisting of N, C and F, and a second dope element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, the lanthanides and the actinides. The “quartz powder” is a powder of crystalline quartz or it is a powder of glassy SiO | 05-26-2011 |
| 20110179827 | PROCESS FOR PRODUCTION OF SYNTHETIC QUARTZ GLASS - The present invention relates to a process for production of a synthetic quartz glass having a fluorine concentration of 1,000 mass ppm or more, the process comprising: (a) a step of depositing and growing quartz glass fine particles obtained by flame hydrolysis of a glass forming raw material onto a substrate, to thereby form a porous glass body; (b) a step of keeping the porous glass body in a reaction vessel that is filled with elemental fluorine (F | 07-28-2011 |
| 20110197631 | METHOD AND APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE - Provided is a method of manufacturing a vitreous silica crucible, including: an arc fusing process for fusing the silica powder molded body by using arc flames generated from the plurality of carbon electrodes, wherein the arc fusing process is performed in a state of disposing tips of at least a pair of carbon electrodes of the plurality of carbon electrodes closer to a target surface of the silica powder molded body than other carbon electrode tips, and setting distances from each of the tips of the closer carbon electrodes to the target surface, to be equal, and the arc fusing process is performed by heating and fusing the silica powder molded body while performing fire polishing, which partially removes an inner surface of the silica powder molded body by using arc flames generated by the closer carbon electrodes. | 08-18-2011 |
| 20110203318 | BURNER AND METHOD FOR THE MANUFACTURE OF SYNTHETIC QUARTZ GLASS - A method for manufacturing quartz glass using a main burner having a multi-tube assembly having a center tube, a first enclosure tube surrounding the center tube, a second enclosure tube surrounding the first enclosure tube, a tubular shell surrounding the multi-tube assembly, and a plurality of nozzles disposed within the tubular shell, a double-tube assembly surrounding at least a forward opening of the main burner includes feeding silica-forming compound to the center tube, a combustion-supporting gas to the first enclosure tube and the nozzles, a combustible gas to the second enclosure tube and the tubular shell, and a combustion-supporting gas to the double-tube assembly, forming oxyhydrogen flame for hydrolyzing or decomposing the silica-forming compound to form silica, depositing the silica on the target, and melting and vitrifying the deposited silica into quartz glass. | 08-25-2011 |
| 20110314868 | METHOD FOR PRODUCING GLASS BODY AND METHOD FOR PRODUCING OPTICAL MEMBER FOR EUV LITHOGRAPHY - The present invention relates to a method for producing a glass body containing: hydrolyzing a silicon compound and a compound containing a metal serving as a dopant, in a flame projected from a burner to form glass fine particles; and depositing and growing the formed glass fine particles on a base material, in which a raw material mixed gas containing a gas of the silicon compound, a gas of the compound containing a metal serving as a dopant, and either one of a combustible gas and a combustion supporting gas is fed into a central nozzle (A) positioning in the center of the burner; the other gas of the combustible gas and the combustion supporting gas is fed into a nozzle (B) different from the central nozzle (A) of the burner; a combustible gas or a combustion supporting gas is arbitrarily fed into a nozzle different from the nozzles (A) and (B); and a flow rate of the raw material mixed gas is 50% or more and not more than 90% of the largest flow rate among flow rate(s) of the combustible gas(ses) and the combustion supporting gas(ses) fed from other nozzle or nozzles than the central nozzle (A). | 12-29-2011 |
| 20120137733 | METHOD AND APPARATUS FOR MANUFACTURING VITREOUS SILICA CRUCIBLE - Provided is a method for manufacturing a vitreous silica crucible and a manufacturing apparatus for the same, which can reduce the amount of bubbles and impurities of a crucible inner surface and enhance a crystallization yield of silicon single crystal. A method for manufacturing a vitreous silica crucible of the invention includes a silica powder supplying process of supplying silica powder in a rotating mold to form a silica powder layer; an arc fusing process of fusing the silica powder layer by arc discharge generated by carbon electrodes; and a fire polishing process of throwing an arc flame toward a target surface of the silica powder layer for surface removal, wherein, in the fire polishing process, the distances from the tips of the carbon electrodes to the target surface is set to be equal. | 06-07-2012 |
| 20120291488 | COPPER-CONTANING SILICA GLASS, METHOD FOR PRODUCING THE SAME, AND XENON FLASH LAMP USING THE SAME - It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. The copper-containing silica glass is made to have copper of from 5 wtppm to 200 wtppm, which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength ranging from 160 nm to 400 nm, and in which an internal transmittance per 2.5 mm thickness at a wavelength of 530 nm is 95% or more. | 11-22-2012 |
| 20130219963 | METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS GRANULES - The production of synthetic quartz glass granules by vitrifying a free-flowing SiO | 08-29-2013 |
| 20130227990 | SILICA CONTAINER AND METHOD FOR PRODUCING THE SAME - A method for producing a silica container includes forming a preliminarily molded substrate, wherein a first powdered raw material is fed to an inner wall of an outer frame having aspiration holes while rotating the outer frame; forming a preliminarily molded intermediate layer, wherein a second powdered raw material added with an aluminum compound or a crystal nucleating agent as an additive is fed to an inner wall of the preliminarily molded substrate; and forming an inner layer, wherein the preliminarily molded substrate and the preliminarily molded intermediate layer are degassed by aspiration from a peripheral side with heating from an inside forming a substrate and an intermediate layer, and a third powdered raw material having a high silica purity is spread from inside the substrate having the formed intermediate layer with heating from the inside forming an inner layer on an inner surface of the intermediate layer. | 09-05-2013 |
| 20130227991 | SILICA CONTAINER AND METHOD FOR PRODUCING THE SAME - Producing a silica container includes forming a powder mixture by adding an Al compound or a crystal nucleating agent into a first powdered raw material; preliminarily molding to an intended shape by feeding the powder mixture to an inner wall of an outer frame while rotating the outer frame having aspiration holes; forming a silica substrate; and forming a transparent silica glass layer on an inner surface of the silica substrate, wherein the preliminarily molded article is degassed by aspiration from a peripheral side and heated from inside the preliminarily molded article at high temperature making a peripheral part of the preliminarily molded article to a sintered body while an inner part to a fused glass body, and a second powdered raw material having a higher silica purity than the first powdered raw material is spread from inside the silica substrate and heated from the inside at high temperature. | 09-05-2013 |
| 20150007611 | METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS - The invention relates to a method for producing synthetic quartz glass by vaporizing a polyalkylsiloxane as a liquid SiO | 01-08-2015 |
| 20150114040 | MANUFACTURING METHOD FOR Si02-Ti02 BASED GLASS, MANUFACTURING METHOD FOR PLATE-SHAPED MEMBER MADE OF Si02-Ti02 BASED GLASS, MANUFACTURING DEVICE, AND MANUFACTURING DEVICE FOR Si02-Ti02 BASED GLASS - A method for manufacturing an SiO | 04-30-2015 |
| 20150376047 | METHOD FOR PRODUCING TITANIUM-DOPED SYNTHETIC QUARTZ GLASS - A method for producing titanium-doped synthetic quartz glass includes:
| 12-31-2015 |
| 065170500 | Employing nonoxide additive | 1 |
| 20140182334 | POROUS WASTE GLASS MEMBRANE - The present invention disclosed in this application relates to a method for producing glass membranes for filtration purposes. The disclosed method for producing cost effective glass membranes utilizes recycled waste glass, has shorter sintering periods and has lower sintering temperatures. | 07-03-2014 |
| 065170600 | With treatment subsequent to fusing | 7 |
| 20090183526 | Method for producing a semifinished product from synthetic quartz glass - Method for producing a semifinished product from synthetic quartz glass Methods for producing a semifinished product from synthetic quartz glass by plastic deformation of a softened SiO | 07-23-2009 |
| 20090260397 | Glass Structure Having Sub-Micron and Nano-Size Bandgap Structures and Method For Producing Same - A glass structure having sub-micron and nano-size bandgap structures and a method of fabricating the glass structure is provided. A first glass structure having micron-scale features is made and then the first glass structure is drawn into a second glass structure that has sub-micron and nano-sized features that allow the structure to perform as a polarizer for visible and infrared light | 10-22-2009 |
| 20090320521 | Method of producing a quartz glass crucible - A method of producing a quartz glass crucible for pulling a single crystal comprising: providing a melting mold comprising a wall having passages between outside and inside; providing an outer layer granulation consisting of first coarser SiO | 12-31-2009 |
| 20100107691 | METHOD OF MANUFACTURING SILICA GLASS CRUCIBLE FOR PULLING SILICON SINGLE CRYSTALS - The disclosed is a method of manufacturing a silica glass crucible for pulling silicon single crystals. In the method, reduced pressure is imparted from the inner surface to the outer surface of a crucible-shaped molded product and the crucible-shaped molded product is arc-fused while rotating the same to form a silica glass crucible with a transparent layer on the inner surface side and a bubble layer on the outer surface side. The inner surface of the wall portion of the silica glass crucible is fused a second time by arc fusion to cause bubbles present in the transparent layer of the inner surface of the wall portion to be displaced toward the bottom portion of the inner surface of the wall portion. The inner surface of the bottom portion of the silica glass crucible is fuse a second time by arc fusion to cause bubbles present in the transparent layer of the inner surface of the bottom portion to be displaced toward the periphery of the inner surface of the bottom portion. Either the step of displacement toward the bottom portion or the step of displacement toward the outer periphery is inverted first. | 05-06-2010 |
| 20130047669 | METHOD OF MAKING A SILICA-TITANIA GLASS HAVING A TERNARY DOPED CRITICAL ZONE - In one aspect the disclosure is directed to a binary silica-titania glass blank having a CTE of 0±30 ppb/° C. or less over a temperature range of 5° C. to 35° C., and a doped silica-titania glass critical zone, wherein the dopant(s) are selected from the group consisting of aluminum oxide, and transition metal oxides, and amount of the dopant(s) is in the range of 0.05 wt. % to 8 wt. %. In various embodiments the dopants are selected from the group consisting of 0.25 wt. % to 8 wt. % Al | 02-28-2013 |
| 20130067955 | METHOD FOR MANUFACTURING A BIOACTIVE GLASS CERAMIC MATERIAL - A method for manufacturing a bioactive glass ceramic material is firstly to prepare a calcium phosphate series ceramic material and a nano-scaled titanium dioxide powder with a specific proportion of anatase phase titanium dioxide structure. Then, the calcium phosphate series ceramic material and the nano-scaled titanium dioxide powder are mixed according to a specific proportion for obtaining a mixture. The mixture is then melted and quenched to execute a replacement type quasi-chemical reaction to form a bioactive glass containing titanium phosphoric (TiP | 03-21-2013 |
| 20140290308 | SILICA CONTAINER AND METHOD FOR PRODUCING THE SAME - A method for producing a silica container having a rotational symmetry includes forming a preliminarily molded article by feeding a powdered substrate's raw material to an inner wall of an outer frame having aspiration holes with rotating the frame, and forming a silica substrate. The preliminarily molded article is aspirated from an outer peripheral side with controlling a humidity inside the outer frame by ventilating gases present in the outer frame with charging from inside the preliminarily molded article a gas mixture comprised of an O2 gas and an inert gas and made below a prescribed dew-point temperature by dehumidification, and at the same time heated from inside the preliminarily molded article by a discharge-heat melting method with carbon electrodes, thereby making an outer peripheral part of the preliminarily molded article to a sintered body while an inner peripheral part to a fused glass body. | 10-02-2014 |
