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Class 117/80 - Unusable portion contains an oxygen atom (e.g., oxide flux)


Subclass of Class 117 - Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
Definition: Subject matter in which the unusable residual portion of
No. of patents: 38
Last issue date: 10/09/2007


NumberTitleIssue Date
7279047Reactor for extended duration growth of gallium containing single crystals
An apparatus for growing bulk GaN and AlGaN single crystal boules, preferably using a modified HVPE process, is provided. The single crystal boules typically have a volume in excess of 4 cubic centimeters with a minimum dimension of approximately 1 centimeter. If de...
10/09/2007
7014706Crystal forming apparatus and method for using same
A crystal forming apparatus and method for using the apparatus, the apparatus including a plate and a film. The plate has a site adapted to hold a screening solution. The film is adjacent to the plate. The film seals the site and is adapted to contain a precipitant ...
03/21/2006
7006539Nonlinear optical crystal
There is provided a nonlinear optical crystal which is presented by the formula: K2Al2B2O7. This nonlinear optical crystal is a vacuum ultraviolet light generating nonlinear optical crystal which is easy to grow and of hig...
02/28/2006
6955719Manufacturing methods for semiconductor devices with multiple III-V material layers
A method for fabricating semiconductor devices with thin (e.g., submicron) and/or thick (e.g., between 1 micron and 100 microns thick) Group III nitride layers during a single epitaxial run is provided, the layers exhibiting sharp layer-to-layer interfaces. Accordin...
10/18/2005
6936357Bulk GaN and ALGaN single crystals
Bulk GaN and AlGaN single crystal boules, preferably fabricated using a modified HVPE process, are provided. The single crystal boules typically have a volume in excess of 4 cubic centimeters with a minimum dimension of approximately 1 centimeter. If desired, the bu...
08/30/2005
6921498Nonlinear optical crystals of compound Na3La9B8O27 and producing method and uses thereof
The present invention relates to nonlinear optical crystals of compound Na3La9B8O27 and producing method and uses thereof. From the Na3La9B8O27 compound, large size single crysta...
07/26/2005
6767401Crystal forming apparatus and method for using same
A crystal forming apparatus and method for using the apparatus, the apparatus including a plate and a film. The plate has a site adapted to hold a screening solution. The film is adjacent to the plate. The film seals the site and is adapted to contain a precipitant ...
07/27/2004
5879590Low conductivity, doped KTIOPO4 and devices based thereon
A method for forming relatively large and inexpensive crystals of KTiOPO4, which exhibit relatively low conductivities, is disclosed. In addition, electro-optic devices based on such crystals are also disclosed....
03/09/1999
5788945Method for refining of silicon
The present invention relates to a process for removing impurities from molten silicon by treatment of molten silicon contained in a vessel with a slag having the capability of removing the impurities, particularly boron from molten silicon wherein slag i...
08/04/1998
5407858Method of making gap red light emitting element substrate by LPE
To provide a GaP red light emitting element substrate which a large amount of oxygen is doped in the p-type GaP layer, and which very few Ga2 O3 precipitates develop on and/or in p-type GaP layer, and methods of manufacturing said su...
04/18/1995
5366583Process for preparing barium titanate single crystals
A mixture of titanium dioxide and an oxide or carbonate of barium includes one or more transition metal elements selected from the group of V, Cr, Mn, Fe, Co, Ni and Cu, in the amount of 2 ppm or more. This mixture is used as a starting material. The mixt...
11/22/1994
5334365Single cesium titanyl arsenate-type crystals, and their preparation
A flux process is disclosed for producing a single orthorhombic crystal of Cs1-x Mx TiOAsO4 (where M is Na, K, Rb, and/or Tl and x is from 0 to 0.4) wherein the dimension of the crystal along each axis is at least about 2 ...
08/02/1994
5326423Doped crystalline titanyl arsenates and preparation thereof
Doped crystalline compositions (e.g., single domain crystals) of MTiOAsO4 (wherein M is K, Rb and/or Cs) are disclosed which contain at least about 10 ppm total of Fe, Sc and/or In dopant. Also disclosed is a flux process which is characterized...
07/05/1994
5322592Potassium-lithium-niobate crystals and the manufacture thereof
The invention provides a method of manufacturing potassium-lithium-niobate crystals having a composition which corresponds to the formula (K2 O)0.3 (Li2 O)0.2+a (Nb2 O5)0.5+b where -0.01
06/21/1994
5084206Doped crystalline compositions and a method for preparation thereof
A composition is disclosed which consists essentially of doped crystalline MTiOXO4 (wherein M is selected from the group consisting of K, Rb and Tl, X is selected from the group consisting of P and As) which contain at least about 100 ppm total...
01/28/1992
5057487Crystal growth method for Y-Ba-Cu-O compounds
Methods of growing Y-Ba-Cu-O compound crystal by suspended pellet partial melting and cooling and by skill melting, with crystal pulling after nucleation on a small platinum wedge or epitaxial growth on an inserted substrate....
10/15/1991
5006199Process for preparing single crystal of potassium titanium arsenate
Disclosed is a process for preparing a single crystal of potassium titanium arsenate by flux growth method, wherein a compound of K2 ZO4, in which Z is at least one of W, S, Mo and Cr, is used as a flux and the flux is blended with p...
04/09/1991
4997515Method of synthesizing single-crystal KTiOPO4
Single-crystal KTiOPO4 is synthesized by a method that includes using KH2 PO4, K2 CO3, and TiO2 as starting materials and using WO3 as a flux material. These materials are mixed toget...
03/05/1991
4961819Synthesis in flux of crystals and epitaxies from from isotypic solid solutions of KTiOPO4
The synthesis in flux of KTP and its isotypes of the formula Ka Rb1-a TiOPb As1-b O4 comprises: the use of the hydroxides of potassium and rubidium as flux, heating to a temperature of 600° to 800° C. for abo...
10/09/1990
4931133High temperature solution growth of barium borate (ଲ-BaB2 O4 )
A method of growing optical quality ଲ-BaB2 O4 crystals involves growing these crystals from a fluxed melt of BaB2 O4, Na2 O and NaCl, in certain proportions....
06/05/1990
4793894Process for crystal growth from solution
A method of producing large flow-free single crystals of either LiNdP4 O12 or XB2 O4, where X is Ba, Sr or Ca, comprising the steps of, preparing a mixture of the final product and a flux of oxide of their precu...
12/27/1988
4792377Flux growth of sodium beta" alumina
A method for growing crystals of sodium beta" alumina is described. The crystals are grown by Czochralski type processes or analogous methods wherein single crystals are formed from a flux or melt. The melt is a eutectic type liquid primarily containing N...
12/20/1988
4761202Process for crystal growth of KTiOPO4 from solution
Large flow-free crystals of KiTiOPO4 and the Rb, Tl, and As analogs are produced by preparing a melt of KtiOPO4 or its analog in a flux in which the ratio by weight of KTiOPO4 to the flux at the seeding temperature is equa...
08/02/1988
4746396Process for the flux synthesis of crystals of the KTiOPO4 potassium titanyl monophosphate type
The process of synthesis of crystals of the KTP type comprises dissolving a mixture of titanium oxide and of oxides, oxide precursors or salts of the constituents of the desired compounds or of compounds of the KTP type prepared beforehand in at least one...
05/24/1988
4708763Method of manufacturing bismuth germanate crystals
The invention relates to a method of manufacturing bismuth germanate (Bi4 Ge3 O12) crystals using the Bridgman technique. A high degree of crystal perfection and an acceptable level of inclusions are obtained by changing t...
11/24/1987
4699687Method of synthesizing cubic system boron nitride
Cubic system boron nitride crystals are synthesized by using a synthesizing vessel separated into a plurality of synthesizing chambers by one or more partition layers. After preparing the synthesizing vessel it is heated under extra-high pressure to achie...
10/13/1987
4625390Two-step method of manufacturing compressed bismuth-containing garnet films of replicable low anisotropy field value
The invention relates to a two step method of manufacturing a magnetically switchable magneto-optic element comprising compressed bismuth-containing garnet film of low anisotropy field value deposited on a monocrystalline gadolinium garnet substrate. The ...
12/02/1986
4582562Process for preparing a single oxide crystal
A process for preparing a single oxide crystal comprising the steps of mixing to fuse raw materials for crystal growth and a flux, cooling the fused mixture slowly to grow and precipitate a single crystal, and dipping up said single crystal from the molte...
04/15/1986
4572618Method for the preparation of photochromic insulating crystals
A method for preparing reversible-photochromic magnesium oxide (MgO) crystals. Single crystals of MgO doped with both lithium (Li) and nickel (Ni) are grown by a conventional arc fusion method. The as-grown crystals are characterized by an amber coloratio...
02/25/1986
4525171Gradient process of growing crystals from liquid media
In a gradient process of growing crystals from liquid media, the need for mechanical seed holders is eliminated in that a solvent is used which at the instantaneous temperature and under the instantaneous pressure employed in the growing process has a den...
06/25/1985
4390513Process for manufacturing fibrous potassium titanate
Fibrous potassium titanate comprises heating to a temperature of 950° C. to 1300° C. potassium titanate of the general formula K2 O.nTiO2 in which n is from 3 to 5, or a mixture of materials from which potassium titanate is formed,...
06/28/1983
4293372Growth of single-crystal magnetoplumbite
Single crystal magnetoplumbite is grown at temperatures under 1000° C. from a fluxed melt having a selected concentration ratio of boron oxide to lead oxide and a selected concentration of iron oxide sufficient to cause magnetoplumbite to crystallize yet...
10/06/1981
4292119Growth of single-crystal 2PbO.Fe2 O3
Single crystal 2PbO.Fe2 O3 is grown from a fluxed melt having a selected concentration ratio of boron oxide to lead oxide and a selected concentration of iron oxide sufficient to cause 2PbO.Fe2 O3 to crystallize...
09/29/1981
4231838Method for flux growth of KTiOPO4 and its analogues
A process for the manufacture of single crystals of MTiOXO4, wherein M is K, Rb or Tl and X is P or As, of optical quality and of sufficient size for use in nonlinear optical devices. In the process, starting ingredients chosen to be within the...
11/04/1980
4217167Method of growing large low defect, monocrystals of BeO
Careful control of flux composition, growth habit and growth conditions leads to rapid growth of substantially defect-free large monocrystals of BeO....
08/12/1980
4093502Process for synthesizing and growing single crystalline beryl
A process for synthesizing single crystalline beryl out of a molten salt is disclosed. The process comprises the steps of providing at least one flux to which is added the component oxides of beryl and optionally a colorant. The mixture thus obtained is h...
06/06/1978
4013501Growth of neodymium doped yttrium aluminum garnet crystals
A method is disclosed for growing neodymium doped yttrium aluminum garnet crystals from a melt containing constituent oxides, lead oxide, lead fluoride, and boron trioxide. By subjecting the melt to a controlled temperature cycle while maintaining a tempe...
03/22/1977
3962027Bi4 Ti3 O12 Single crystal growth from saturated seeded solution
Method of growing single crystal of Bi4 Ti3 O12 by a top-seeded growth technique. A solution of TiO2 is a solvent consisting of Bi2 O3 with/without B2 O3 is prepared. ...
06/08/1976
 
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