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| Number | Title | Issue Date |
| 7947243 | Boron nitride thin-film emitter and production method thereof, and electron emitting method using boron nitride thin-film emitter Based on designs concerning boron nitride thin-films each including boron nitride crystals in acute-ended shapes excellent in field electron emission properties, and designs of emitters adopting such thin-films, it is aimed at appropriately controlling a distributio... | 05/24/2011 |
| 7494635 | Boron nitride agglomerated powder Novel boron nitride agglomerated powders are provided having controlled density and fracture strength features. In addition methods for producing same are provided. One method calls for providing a feedstock powder including boron nitride agglomerates, and heat trea... | 02/24/2009 |
| 7419572 | Sp3 bond boron nitride emitting light in ultraviolet region, its producing method, and functional material using same The present invention provides a sp3-bonded boron nitride, represented by a general formula BN, having a hexagonal 5H or 6H polytypic form and having a property of emitting light in ultraviolet region. Its producing method comprises: introducing reaction mixed gas c... | 09/02/2008 |
| 7404832 | Method for producing cubic boron nitride abrasive grains The present invention relates to a method for producing cubic boron nitride abrasive grains used for producing a grinding wheel, etc., and to cubic boron nitride abrasive grains. The method comprises maintaining a mixture containing hexagonal boron nitride and seed ... | 07/29/2008 |
| 7381391 | Method of making Group III nitrides The present invention provides compositions and a novel high-yielding process for preparing high purity Group III nitrides. The process involves heating a Group III metal and a catalytic amount of a metal wetting agent in the presence of a nitrogen source. Group III... | 06/03/2008 |
| 7371359 | Non-aqueous borate routes to boron nitride A non-aqueous route and process for preparation of boron nitride utilizing aerosol assisted vapor phase synthesis (AAVS) wherein boron precursors are nitrided in one or two heating steps, and wherein a boron oxide nitride carbide intermediary composition is formed a... | 05/13/2008 |
| 7361213 | Borazine-boron nitride hybrid hydrogen storage system A hybrid hydrogen storage composition includes a first phase and a second phase adsorbed on the first phase, the first phase including BN for storing hydrogen by physisorption and the second phase including a borazane-borazine system for storing hydrogen in combined... | 04/22/2008 |
| 7341702 | Process for producing boron nitride A process for producing boron nitride of high purity and high thermal conductivity, wherein a oxygen-containing boron compound is reacted with a nitrogen-containing source in the presence of a dopant at a temperature of at least 1000° C. for at least one hour, and ... | 03/11/2008 |
| 7323049 | High pressure superabrasive particle synthesis An improved method for controlling nucleation sites during superabrasive particle synthesis can provide high quality industrial superabrasive particles with high yield and a narrow size distribution. The synthesis method can include forming a raw material layer, for... | 01/29/2008 |
| 7314651 | Film forming method and film forming device A plasma 10 is generated within a film formation chamber 2, and mainly a nitrogen gas 11 is excited within the film formation chamber 2. Then, the excited nitrogen gas 11 is mixed with a diborane gas 13 diluted with a hydrog... | 01/01/2008 |
| 7297317 | Process for producing boron nitride A process for producing boron nitride using a boron containing ore as a starting material, by reacting naturally occurring ulexite with ammonia at high temperature, for a boron nitride with high impurity and at a high yield. ... | 11/20/2007 |
| 7273904 | Nanocrystals in ligand boxes exhibiting enhanced chemical, photochemical, and thermal stability, and methods of making the same Dendron ligands or other branched ligands with cross-linkable groups were coordinated to colloidal inorganic nanoparticles, including nanocrystals, and substantially globally cross-linked through different strategies, such as ring-closing metathesis (RCM), dendrimer... | 09/25/2007 |
| 7267808 | Aluminum nitride powder, method for producing the same and use thereof The present invention is to produce an aluminum nitride powder which is turned into a sintered body at a temperature of not more than 1600° C., thereby obtaining a sintered aluminum nitride in which the density and thermal conductivity are high and which can be pro... | 09/11/2007 |
| 7247186 | Advanced erosion resistant carbonitride cermets The invention includes a cermet composition represented by the formula (PQ) (RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W,... | 07/24/2007 |
| 7244406 | Method for producing cubic boron nitride A method is provided for producing cubic boron nitride, in which a mixture containing hexagonal boron nitride and a catalyst is maintained under pressure and temperature conditions that thermodynamically favor the stable presence of cubic boron nitride, thereby form... | 07/17/2007 |
| 7214359 | Cubic boron nitride, catalyst for synthesizing cubic boron nitride, and method for producing cubic boron nitride By using a CBN synthesis catalyst containing a CBN synthesis catalyst component coated with an organic substance for producing cubic boron nitride (CBN), the CBN can be produced at a high transformation ration and a high yield ratio. Each of the CBN grains produced ... | 05/08/2007 |
| 7192644 | Non-aqueous borate routes to boron nitride A non-aqueous route and process for preparation of boron nitride utilizing aerosol assisted vapor phase synthesis (AAVS) wherein boron precursors are nitrided in one or two heating steps, and wherein a boron oxide nitride carbide intermediary composition is formed a... | 03/20/2007 |
| 7189774 | Method for making high thermal diffusivity boron nitride powders The present invention relates to a method for making boron nitride powder having a thermal diffusivity of from about 0.14 cm2/s to about 0.20 cm2/s. This method involves pressing high purity, hexagonal boron nitride having an average platelet s... | 03/13/2007 |
| 7175686 | Erosion-corrosion resistant nitride cermets The invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Si, Mn, Fe, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and mixture... | 02/13/2007 |
| 7175687 | Advanced erosion-corrosion resistant boride cermets A cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and binder phase (RS) wherein, P is at least one metal selected from the group consisting of Group IV, Group V, Group VI elements, Q is boride, ... | 02/13/2007 |
| 7150862 | Method of manufacturing powder A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry containing agglomerated particles of a synthetic material which is produ... | 12/19/2006 |
| 7138098 | Preparation of nanocrystallites A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Semiconductin... | 11/21/2006 |
| 7074253 | Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is ... | 07/11/2006 |
| 7063891 | Surface hardened carbon material and process of manufacturing A carbon material is formed by heat-treating a carbonaceous material in a reaction mix of oxides of boron and boron nitride in a nitrogen atmosphere to temperatures of 1600 to 2000° C. The surface of the carbonaceous material is transformed into a carbon material t... | 06/20/2006 |
| 7060237 | Non-aqueous borate routes to boron nitride A non-aqueous route and process for preparation of boron nitride utilizing aerosol assisted vapor phase synthesis (AAVS) wherein boron precursors are nitrided in one or two heating steps, and wherein a boron oxide nitride carbide intermediary composition is formed a... | 06/13/2006 |
| 7014826 | Method for producing cubic boron nitride and product obtained through the method A method for producing cubic boron nitride includes maintaining hexagonal boron nitride in the presence of a catalyst substance under conditions where cubic boron nitride remains thermodynamically stable to thereby transform hexagonal boron nitride into cubic boron ... | 03/21/2006 |
| 7001577 | Low oxygen cubic boron nitride and its production A method for improving the toughness of a CBN product made by a high temperature/high pressure (HP/HT) process commences by forming a blend of an oxygen getter and CBN product-forming feedstock. The blend is subjected to a CBN high temperature/high pressure (HP/HT) ... | 02/21/2006 |
| 6984448 | Cubic boron nitride clusters A cubic boron nitride cluster comprises a core (10) and an overgrown region, the overgrown region containing a plurality of cubic boron nitride crystallites (12) extending outwards from the core (10). The majority of the cubic boron nitride crys... | 01/10/2006 |
| 6953539 | Composite material A composite material includes an SiC porous ceramic sintered body, which is formed by preliminarily sintering a porous body, having a coefficient of thermal expansion lower than the coefficient of thermal expansion of copper to construct a network therein. A copper ... | 10/11/2005 |
| 6951583 | Highly delaminated hexagonal boron nitride powders, process for making, and uses thereof The present invention relates to a powder comprising boron nitride particles having an aspect ratio of from about 50 to about 300. The present invention also relates to a method of making delaminated boron nitride powder. This method involves providing boron nitride... | 10/04/2005 |
| 6949289 | Impregnated glass fiber strands and products including the same The present invention provides an at least partially coated fiber strand comprising a plurality of glass fibers having a coating composition on at least a portion of at least one of the glass fibers, the coating composition comprising at least one coating comprising... | 09/27/2005 |
| 6949480 | Method for depositing silicon nitride layer of semiconductor device Disclosed is a method for depositing a silicon nitride layer of a semiconductor device. The method includes the steps of providing Al-based compound as a catalyst, and reacting DCS with NH3 by using the Al catalyst, thereby depositing the silicon nitride ... | 09/27/2005 |
| 6911083 | Method for producing powders made of gallium nitride and apparatus for producing the same In a creation section of GaN crystal nuclei, a gallium vapor and an ammonia gas are chemically reacted to create GaN crystal nuclei, which are transported into a growth section of GaN powders with a nitrogen carrier gas. In the growth section of GaN powders, a galli... | 06/28/2005 |
| 6824753 | Organoboron route and process for preparation of boron nitride An organoboron route and process for preparation of boron nitride utilizing aerosol assisted vapor phase synthesis (AAVS) wherein organoboron precursors are nitrided in one or two heating steps, and wherein a boron oxide nitride intermediary composition is formed af... | 11/30/2004 |
| 6794435 | Agglomerated hexagonal boron nitride powders, method of making, and uses thereof The present invention relates to a powder including agglomerates of hexagonal boron nitride platelets, wherein the agglomerates have an agglomerate size distribution of from about 10 to about 125 microns and the powder is substantially free of non-agglomerated plate... | 09/21/2004 |
| 6774074 | Method for making boron nitride fibers from aminoborazines The invention concerns a method for making boron nitride fibers by drawing a polymer precursor and treating with ceramics the polymer fibers obtained by drawing. The invention is characterized in that the precursor polymer is obtained by thermal polymerization of a ... | 08/10/2004 |
| 6764975 | Method for making high thermal diffusivity boron nitride powders The present invention relates to a method for making boron nitride powder having a thermal diffusivity of from about 0.14 cm2/s to about 0.20 cm2/s. This method involves pressing high purity, hexagonal boron nitride having an average platelet s... | 07/20/2004 |
| 6737377 | Cutting tool of a cubic boron nitride sintered compact The object of the present invention is to provide a cutting tool consisting of fine grain cBN free from a binder and having a grain size of at most 1 μm and having a high hardness, high strength and excellent heat resistance. The feature thereof consists in a cutti... | 05/18/2004 |
| 6660241 | Highly delaminated hexagonal boron nitride powders, process for making, and uses thereof The present invention relates to a powder comprising boron nitride particles having an aspect ratio of from about 50 to about 300. The present invention also relates to a method of making delaminated boron nitride powder. This method involves providing bo... | 12/09/2003 |
| 6652822 | Spherical boron nitride particles and method for preparing them Spherical and polyhedral particles of boron nitride and method of preparing them. Spherical and polyhedral particles of boron nitride are produced from precursor particles of hexagonal phase boron nitride suspended in an aerosol gas. The aerosol is direct... | 11/25/2003 |
