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8420043 Nano-crystal diamond film, manufacturing method thereof, and device using nano-crystal diamond film  
A nano-crystal diamond film synthesized on a substrate and containing, as a major component, nano-crystal diamond having a grain diameter from 1 nm to less than 1000 nm. This nano-crystal diamond...
8398947 Separation of diamond from gangue minerals  
The present invention relates to a method for separating diamond from gangue minerals. In particular, this method relates to the addition of a first reagent or reagents which contact the diamond...
8367207 Method of producing a hydrogenated amorphous carbon coating  
The invention relates to a hydrogenated amorphous carbon coating and to a method for the production thereof. It also relates to devices having such a coating. The method of the invention consists...
8361429 Polycrystalline diamond materials and related products  
Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to an HPHT process, PCD materials so-formed, and PDCs...
8357625 Catalyst and method for producing carboxylic acid and/or carboxylic anhydride in the presence of the catalyst  
An object of the present invention is to provide a catalyst exhibiting excellent performance particularly in partial oxidation reaction. Another object is to provide a method for efficiently...
8309050 Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance  
PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at...
8282796 Carbonaceous substrate and electrode for fluorine-producing electrolysis  
A carbonaceous substrate of the present invention is such that an X-ray diffraction pattern thereof is a complex profile and includes at least two (002) diffraction lines; and the substrates...
8252263 Device and method for growing diamond in a liquid phase  
A method of growing a diamond mass in a liquid growth medium. The liquid growth medium can include a carbon source, a diamond growth catalyst such as a diamond catalyst metal-rare earth element...
8246746 Laser uses for single-crystal CVD diamond  
The present invention is directed to new laser-related uses for single-crystal diamonds produced by chemical vapor deposition. One such use is as a heat sink for a laser; another such use is as a...
8226922 High-hardness conductive diamond polycrystalline body and method of producing the same  
A diamond sintered body conventionally used in a cutting tool or the like includes an iron group metal element as a sintering aid, and therefore has a problem in heat resistance. A diamond...
8192713 Method of incorporating a mark in CVD diamond  
A method of incorporating a mark of origin, such as a brand mark, or fingerprint in a CVD single crystal diamond material, includes the steps of providing a diamond substrate, providing a source...
8187380 Method of growing single crystal diamond in a plasma reactor  
Synthetic monocrystalline diamond compositions having one or more monocrystalline diamond layers formed by chemical vapor deposition, the layers including one or more layers having an increased...
8182562 Slurries containing abrasive grains having a unique morphology  
A slurry containing a plurality of monocrystalline diamond particles, wherein the average surface roughness of said particles is less than about 0.95; a major vehicle selected from the group of...
8172916 Stable aqueous suspension liquid of finely divided diamond particles, metallic film containing diamond particles and method of producing the same  
An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely...
8147790 Methods of fabricating polycrystalline diamond by carbon pumping and polycrystalline diamond products  
Embodiments of the invention relate to methods of fabricating polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding by carbon pumping, and PCD and polycrystalline diamond...
8133320 Diamond heat sink in a laser  
A laser has a laser material in thermal contact with a diamond, such that the diamond is operable to carry heat away from the laser material. In further embodiments, the diamond has a reduced...
8110171 Method for decolorizing diamonds  
A method for changing the color of a diamond. The method comprises placing the diamond in a substrate holder in a chemical vapor deposition (CVD) equipment. The CVD equipment is maintained at...
8088221 Method and system for diamond deposition using a liquid-solvent carbon-tranfser mechanism  
A system and method for growing diamond crystals from diamond crystal seeds by epitaxial deposition at low temperatures and atmospheric and comparatively low pressures. A solvent is circulated (by...
8071066 Method and apparatus for improving the quality of diamonds and other gemstones  
The present disclosure relates to methods for improving the quality of diamonds by eliminating internal defects, such as cracks and vacant volumes, without the use of filler materials such as...
8057775 Polycrystalline diamond materials, methods of fabricating same, and applications using same  
Embodiments relate to methods of fabricating PCD materials by subjecting a mixture that exhibits a broad diamond particle size distribution to a HPHT process, PCD materials so-formed, and PDCs...
8043533 Diamond sintered compact having high electrical conductivity and production method thereof  
The present invention is to provide a diamond sintered compact having good conductivity together with the characteristics, such as hardness, thermal conductivity, thermal resistance, chemical...
8021639 Method for rapidly synthesizing monolithic polycrystalline diamond articles  
A method for rapidly synthesizing polycrystalline diamond, includes the steps of machining a large monolithic graphite piece, placing the starting graphite piece in direct contact with an...
8007909 Carbon film  
Disclosed is a carbon film which has optical characteristics of retaining a high transparency and being high in refractive index and low in double refractivity, is excellent in electric insulating...
8007754 Separation of diamond from gangue minerals  
The present invention relates to a method for separating diamond from gangue minerals. In particular, this method relates to the addition of a first reagent or reagents which contact the diamond...
7976893 Superconductivity in boron-doped diamond thin film  
A heavily boron-doped diamond thin film having superconductivity is deposited by chemical vapor deposition using gas mixture of at least carbon compound and boron compound, including hydrogen. An...
7959887 Method for manufacturing a diamond composite  
A method for manufacturing a diamond composite, includes: a) mixing diamonds with additives, the mixture comprising at least 50 wt % and less than 95 wt % of diamonds and more than 5 wt %...
7927390 Stable aqueous suspension liquid of finely divided diamond particles, metallic film containing diamond particles and method of producing the same  
An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely...
7927879 Zirconium crucible for melting analytical sample, method of preparing analytical sample and method of analysis  
Proposed is a zirconium crucible used for melting an analytical sample in the pretreatment of the analytical sample, wherein the purity of the zirconium crucible is 99.99 wt % or higher. In light...
7910083 Coloured diamond  
A diamond layer of single crystal CVD diamond which is coloured, preferably which has a fancy colour, and which has a thickness of greater than 1 mm.
7901661 Synthesis of hydrogen-carbon clathrate material and hydrogen evolution therefrom at moderate temperatures and pressures  
A process for making a hydrogenated carbon material is provided which includes forming a mixture of a carbon source, particularly a carbonaceous material, and a hydrogen source. The mixture is...
7892356 Diamond composite substrate and process for producing the same  
It is an object of the present invention to provide a diamond substrate with high toughness, a large surface area, and high quality, for use in semiconductor materials, electronic components,...
7887628 Thick single crystal diamond layer method for making it and gemstones produced from the layer  
A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer.
7887631 System and high pressure, high temperature apparatus for producing synthetic diamonds  
An apparatus for growing a synthetic diamond comprises a growth chamber, at least one manifold allowing access to the growth chamber, and a plurality of safety clamps positioned on opposite sides...
7883684 Colorless single-crystal CVD diamond at rapid growth rate  
The present invention relates to a method for producing colorless, single-crystal diamonds at a rapid growth rate. The method for diamond production includes controlling temperature of a growth...
7879148 System and method for producing synthetic diamond  
Synthetic monocrystalline diamond compositions having one or more monocrystalline diamond layers formed by chemical vapor deposition, the layers including one or more layers having an increased...
7867467 Nanodiamond and a method for the production thereof  
The invention relates to carbon chemistry and is embodied in the form of a nanodiamond comprising 90.0-98.0 mass % carbon, 0.1-5.0 mass % hydrogen, 1.5-3.0 mass % nitrogen and 0.1-4.5 mass %...
7862792 Diamond-carbon material and a method for the production thereof  
The invention relates to carbon chemistry and is embodied in the form of a diamond-carbon material, in which carbon is contained in the form a diamond cubic modification and in a...
7857876 Method of producing polishing material comprising diamond clusters  
Diamond clusters are used as a polishing material of free abrading particles, each being a combination of artificial diamond particles having primary particle diameters of 20 nm or less and...
7854823 Synthesis of diamond by extraction of a pulse derived from the abrupt collapse of a magnetic field  
A process for converting carbonaceous material into diamond utilizing the compressive force derived from an abruptly collapsing magnetic field.
7820131 Diamond uses/applications based on single-crystal CVD diamond produced at rapid growth rate  
The present invention is directed to new uses and applications for colorless, single-crystal diamonds produced at a rapid growth rate. The present invention is also directed to methods for...
7820130 Functionalization of nanodiamond powder through fluorination and subsequent derivatization reactions  
The present invention is directed to functionalized nanoscale diamond powders, methods for making such powders, applications for using such powders, and articles of manufacture comprising such...
7807126 Diamond single crystal substrate  
A method for manufacturing a diamond single crystal substrate, in which a single crystal is grown from a diamond single crystal serving as a seed substrate by vapor phase synthesis, said method...
7771498 Superabrasive tools having improved caustic resistance  
Superabrasive tools having improved caustic resistance and their methods of manufacture are disclosed. One aspect may include a method of providing caustic resistance along an entire working...
7771693 Diamond single crystal substrate manufacturing method  
A diamond single crystal substrate manufacturing method for growing by vapor-phase synthesis a single crystal from a diamond single crystal seed substrate, comprising etching away by reactive ion...
7767184 Diamond films and methods of making diamond films  
The present invention provides films and substrates coated with films that comprise a nano-crystalline diamond matrix that is substantially free of graphite inclusions. The present invention also...
7754180 Ultrahard diamonds and method of making thereof  
A single crystal diamond grown by microwave plasma chemical vapor deposition annealed at pressures in excess of 4.0 GPa and heated to temperature in excess of 1500 degrees C. that has a hardness...
7754179 Lower pressure synthesis of diamond material  
Methods of synthesizing a diamond material, particularly nanocrystalline diamond, diamond-like carbon and bucky diamond are provided. In particular embodiments, a composition including a carbon...
7740824 Optical quality diamond material  
A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical...
7736435 Method of producing single crystal  
A method for producing a single crystals by preferential epitaxial growth of {100} face, comprising the steps of (1) growing the crystal on a single crystal {100} substrate; (2) forming on the...
7713507 Tough diamonds and method of making thereof  
A single crystal diamond grown by microwave plasma chemical vapor deposition has a hardness of 50-90 GPa and a fracture toughness of 11-20 MPa m1/2. A method for growing a single crystal diamond...