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Class 65/117 - Annealing


Subclass of Class 65 - Glass manufacturing
Definition: Processes involving heating a preform or article to a suitable
No. of patents: 73
Last issue date: 04/29/2008


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NumberTitleIssue Date
7363777Closed cassette and method for heat treating glass sheets
A convection compatible closed cassette and method are described herein where the closed cassette is used to heat treat (compact) one or more glass sheets in a uniform manner and in a clean environment. In the preferred embodiment, the closed cassette includes multi...
04/29/2008
7213415Method for producing air-quench-toughened glass plate
In a process for producing an air-quench-toughened glass plate, defective glass plates containing nickel sulfide (NiS) are removed by compulsory breaking the glass plates. Such compulsory breakage is carried out in the course of a batch-manner soaking process carrie...
05/08/2007
7207193Method of fabricating low-warp flat glass
A method of fabricating a glass sheet comprises modifying the thermal stress in the glass such that it is a tensile stress or substantially zero stress in a particular temperature zone of the glass, with that zone selected such that the glass sheet is formed substan...
04/24/2007
7162894Method for charging quartz glass objects with hydrogen
The invention relates to the loading of quartz glass objects with hydrogen in an annealing process in a furnace for improving the homogeneity of the refractive index and the laser resistance while, at the same time, maintaining a specified stress birefringence of ea...
01/16/2007
7159419System and method for vapor pressure controlled growth of infrared chalcogenide glasses
A system and method for preparing chalcogenide glass are provided that allow for larger quantities of glass to be produced with lower production costs and less risks of environmental hazards. The system includes a reaction container operable to hold chalcogenide gla...
01/09/2007
7159420System and method for forming infrared glass optical components
A system and method for forming infrared glass optical components are provided. The system includes first and second mold halves having first and second respective faces. The first and second mold halves are configured to be removably coupled such that the first fac...
01/09/2007
7128944Method for making thermally tempered glass comprising a non-abrasive, porous, SiOantireflection layer
The invention relates to thermally tempered safety glass comprising an non-abrasive and porous SiO2 layer which is stable during sintering and has a refractive index of between 1.25 and 1.40. The inventive safety glass can be obtained by coating standard ...
10/31/2006
7111477Production method of optical synthetic quartz glass, optical synthetic quartz glass, and annealing furnace
An object is to provide a method for producing an optical synthetic quartz glass and an optical synthetic glass, having a birefringence of lower than 0.5 nm/cm and having favorable refractive index distribution, yet without lowering the productivity, as well as to p...
09/26/2006
6986268Method for the preparation of plate glass having low residual stress
A flat glass plate having a low residual stress, suitable for use in preparing a display, can be prepared without an annealing or polishing process by way of controlling the horizontal temperature gradient of a molten glass plate to a specific range during cooling.
01/17/2006
6826929Method for simultaneously heating and cooling glass to produce tempered glass
A system and method for heating, forming, and tempering a glass sheet includes pre-heating the glass sheet to at least a first predetermined temperature. The system and method includes also applying radio-frequency energy to the glass sheet to heat it to at least a ...
12/07/2004
6732546Product method of synthetic silica glass and thermal treatment apparatus
A production method of synthetic silica glass according to the present invention comprises a first step of ejecting a silicon compound and a combustion gas containing oxygen and hydrogen from a burner to effect hydrolysis of the silicon compound in oxyhydrogen flame...
05/11/2004
6672109Silica glass member, method for producing the same, and projection aligners using the same
A silica glass member for use with a light having a specific wavelength of 250 nm or shorter, in which the difference in the maximum and the minimum values of hydroxyl group concentration as measured in a plurality of points within a plane vertical to an ...
01/06/2004
6650819Methods for forming separately optimized waveguide structures in optical materials
A method for forming plural waveguide structures in an optical substrate, such as lithium niobate, employs multiple stages of annealed proton exchange. In each stage, the substrate is masked to define a region corresponding to at least one waveguide struc...
11/18/2003
6609394Method for producing air-quench-toughened glass plate
In a process for producing an air-quench-toughened glass plate, defective glass plates containing nickel sulfide (NiS) are removed by compulsory breaking the glass plates. Such compulsory breakage is carried out in the course of a batch-manner soaking pro...
08/26/2003
6588232Treatment device, laser annealing device, manufacturing apparatus, and manufacturing apparatus for flat display device
A film forming device in a substrate manufacturing apparatus a stage section on which a cassette storing a plurality of glass substrates is mounted. A treatment section for subjecting the substrate to a predetermined treatment is arranged to oppose the st...
07/08/2003
6567599Integrated optic device manufacture by cyclically annealed proton exchange process
A method of manufacturing an integrated optic device having at least one waveguide formed in a surfaced thereof is described. The waveguide is formed utilizing a two-step proton exchange process in which the substrate is bathed in a strong acid and then s...
05/20/2003
6550277Quartz glass body for optical component and process for manufacture thereof
The invention concerns a quartz glass body for an optical component for the transmission of UV radiation with a wavelength of 250 nm and less, especially for a wavelength of 157 nm, as well as a process for the manufacture of the quartz glass body where f...
04/22/2003
6536237Laser annealing system
The present invention relates to a laser annealing system which reduces damages and contamination to a chamber window by adding a buffer window between the chamber window and a silicon film being annealed by a laser beam. The laser annealing system includ...
03/25/2003
6442973Synthetic silica glass and its manufacturing method
A method is provided for manufacturing a synthetic silica glass. The method includes the steps of maintaining a silica glass member, which is formed using a flame hydrolysis method and having an OH group concentration of about 500 ppm to about 1300 ppm, a...
09/03/2002
6408649Method for the rapid thermal treatment of glass and glass-like materials using microwave radiation
A method of thermally treating a glass or glass-like material, preferably a glass sheet, without the use of conventional tunnel-type furnaces, to effect rapid heating of glass and glass-like materials from any initial temperature to any required temperatu...
06/25/2002
6381989Heat treated fibers for reinforced dental restorations and method of manufacture thereof
A method for processing a glass fiber material, wherein the glass fiber material has been heat treated at a temperature less than or equal to the annealing temperature of the glass for a length of time effective to prevent separation and fraying of the ed...
05/07/2002
6374640Method for compaction of flat glass panes
A simple and economical method is described for compacting or shrinking flat glass panes. The method ensures high temperature homogeneity in the glass. First, the glass panes are cleaned and then a stack of glass panes to be treated is assembled without a...
04/23/2002
6319612Glass and glass ceramic plates with elevated thermal stability and process for their production
Glass or glass ceramic plates with elevated thermal resistance and process for their production. After cooling, the glass or glass ceramic plates are subjected to zone annealing, whereby the plates are divided into two zones in which annealing is done at ...
11/20/2001
6289698Method of making a fiber preform with increases in alumina concentration at radial distances
A sintered dense glass, alumina-doped optical fiber preform is stretched and is then heated to a temperature of 1490-1495° C. to remove bubbles without causing crystallization. Thereafter, the stretched glass body is either drawn directly into an optical...
09/18/2001
6196027Method of making glasses containing spectral modifiers
The invention is a method of making silicate based glass compositions with phosphorus compounds included in the composition as spectral modifiers to impart desirable color and improved energy absorbance properties. The phosphorus compound is generally a m...
03/06/2001
6185355Process for making high yield, DC stable proton exchanged waveguide for active integrated optic devices
A process for greatly improving the DC drift problem associated with LiNbO3 and LiTaO3 substrates. The process immerses the substrates in a heat bath comprised of a strong acid and then subjects the substrates to cyclical annealing....
02/06/2001
6073464Laser surface treatment device and method
A laser surface method involves applying a laser beam treatment in one or several steps to a series of generally similar surfaces of given depth. Properties of the laser treatment are selected so as to change the physical state of each surface. Ellipsomet...
06/13/2000
6020225Method of manufacturing array substrate of a liquid crystal display device
A method of manufacturing an array substrate of a liquid crystal display device where the array substrate comprises a glass substrate and a thin film transistor formed on the glass substrate, the method comprising the steps of, heat-treating the glass sub...
02/01/2000
5997960Glass container coating process
A coating for a clear (flint) glass container that can be readily formulated to provide a wide range of colors and finishes and protect the contents from natural and ultraviolet light. When applied and cured the coating will provide increased abrasion and...
12/07/1999
5916656Sheet glass flattening method, method of manufacturing an information recording glass substrate using flattened glass, method of manufacturing a magnetic disk using glass substrate, and magnetic recording medium
A glass substrate manufacturing method advantageously applicable to magnetic recording disk glass substrates, LCD glass substrates, photomasks glass substrates, or optical memory glass substrates. The method includes the steps of forming a film of a solut...
06/29/1999
5908482Method for producing a silica glass
A silica glass has a structure determination temperature of 1200K or lower and a hydrogen molecule concentration of 1×1017 molecules/cm3 or more. The silica glass is used together with light in a wavelength region of 400 nm or short...
06/01/1999
5888263Method of annealing a glass product and annealing apparatus for a glass product
A mesh belt is stretched in an annealing lehr and a plurality of fine mesh elements, which constitute a fine mesh having gas-permeability and elasticity, formed by weaving a heat-resistant wire, are fixed onto the mesh belt so as to be arranged along the ...
03/30/1999
5882368Method for coating glass substrates by ultrasonic nebulization of solutions
A method and an apparatus for coating a hot glass substrate with a mist of fine droplets from a solution of a chemical precursor or mixture of precursors in a solvent, by nebulizing a solution with ultrasonic vibration to form a mist of fine droplets; con...
03/16/1999
5882371Method for heat-treating a glass substrate
In each of the second and subsequent heat treatments, in a case where a glass substrate shrinks by heat treatment at the same average cooling rate as the average cooling rate in the immediately preceding heat treatment, the average cooling rate is set to ...
03/16/1999
5861445Reinforcement of dental and other composite materials
A composition useful as a restorative material includes a curable matrix with whiskers which preferably have a silicon dioxide containing coating thereon that are then silanized and may also include optional particulate filler of the type which may releas...
01/19/1999
5837026Method for producing a glass panel for a cathode ray tube
Air is blowed before an annealing step to corner portions in an inner face portion of a glass panel which has been press-formed in a mold to cool that portions to be stronger than the other portion whereby a temperature difference between the corner porti...
11/17/1998
5820650Optical processing apparatus and optical processing method
A glass substrate is positioned between a chamber with a reduced pressure and a chamber filled with a heated helium, and the glass substrate is forcibly bent by the pressure difference and the heated helium gas into a uniform shape. The irradiation of las...
10/13/1998
5725625Method of manufacturing a magnetic recording disk using glass substrate
A glass substrate manufacturing method advantageously applicable to magnetic recording disk glass substrates, LCD glass substrates, photomask glass substrates, or optical memory glass substrates. The glass substrate is formed by chemically strengthening a...
03/10/1998
5711778Method and apparatus for annealing glass sheets
A method and apparatus for annealing glass sheets, in which glass sheets are retained within a frame having edge retaining members. The edge retaining members retain the edges of the glass sheet during the annealing operation, thereby hindering warpage an...
01/27/1998
5674304Method of heat-treating a glass substrate
A method of heat-treating a glass substrate where the substrate is thermally treated (such as the formation of films, growth of films, and oxidation) around or above its strain point. After thermally treating the substrate around or above its strain point...
10/07/1997
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