Diamond Patents (Class 423/446)
  • Patent number: 10766775
    Abstract: A method of producing a diamond monolayer, which entails impacting a target containing a supported or immobilized layer of dihydrobenzvalene with a fluence of accelerated CH radicals, producing upon impact a shock wave not exceeding the strain energy of the dihydrobenzvalene, to form, thereby, the diamond monolayer; and then impacting a supported and heated diamond monolayer with a fluence of accelerated CH radicals sufficient to produce an instantaneous pressure at a surface of the diamond monolayer to favor diamond formation over graphite formation, to form diamond mass; said heated diamond monolayer being heated to a temperature of at least about 500° C.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: September 8, 2020
    Inventor: Daniel Hodes
  • Patent number: 10760157
    Abstract: Disclosed herein is a transparent glass system that includes an optical grade silicon substrate, and a nanocrystalline diamond film on the silicon substrate, the diamond film deposited using a chemical vapor deposition system having a reactor in which methane, hydrogen and argon source gases are added. Further disclosed is a method of fabricating transparent glass that includes the steps of seeding an optical grade silicon substrate and forming a nanocrystalline diamond film on the silicon substrate using a chemical vapor deposition system having a reactor in which methane, hydrogen and argon source gases are added.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: September 1, 2020
    Assignee: AKHAN Semiconductor, Inc.
    Inventors: Adam Khan, Robert Polak
  • Patent number: 10738821
    Abstract: A radial bearing assembly is provided. The radial bearing assembly includes polycrystalline diamond elements, each having an engagement surface in sliding engagement with an opposing engagement surface. The opposing engagement surface includes a diamond reactive material. The radial bearing assembly may be deployed in a variety of components and applications, including in rotor and stator assemblies. Also provided are methods of use of the radial bearing assembly, as well as methods of designing the radial bearing assembly.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 11, 2020
    Assignee: XR Downhole, LLC
    Inventors: David P. Miess, Gregory Prevost, Michael Williams, Edward C. Spatz, Michael R. Reese, William W. King
  • Patent number: 10737943
    Abstract: Provided is a method for manufacturing a single-crystal diamond, the method including the steps of: forming a protective film on at least a part of a surface of an auxiliary plate; preparing a diamond seed crystal substrate; disposing an auxiliary plate with a protective film that has the protective film formed on the auxiliary plate, and a diamond seed crystal substrate in a chamber; and growing a single-crystal diamond on a principal surface of the diamond seed crystal substrate by a chemical vapor deposition method while introducing a carbon-containing gas into the chamber.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 11, 2020
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Takuya Nohara, Natsuo Tatsumi, Yoshiki Nishibayashi, Hitoshi Sumiya, Yutaka Kobayashi, Akihiko Ueda
  • Patent number: 10737942
    Abstract: The present invention relates to a method for producing zeta positive hydrogenated nanodiamond particles, and to a method for producing zeta positive single digit hydrogenated nanodiamond dispersions. The present invention further relates to zeta positive hydrogenated nanodiamond powder and zeta positive single digit hydrogenated nanodiamond dispersion.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: August 11, 2020
    Assignee: Carbodeon Ltd Oy
    Inventor: Vesa Myllymäki
  • Patent number: 10723944
    Abstract: A fluorescent diamond particle, characterized by having a surface and a diamond lattice; the particle comprising a core and a region within approximately 3 nm of the surface of the particle enriched with fluorescent color centers, where the near surface enrichment with color centers is enriched by a treatment providing in-diffusion of external dopants, as compared to particles which have not undergone the treatment. The dopant is selected from the group consisting of a nitrogen atom, a group of nitrogen atoms, silicon, and a combination thereof.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 28, 2020
    Inventor: Olga Aleksandrovna Shenderova
  • Patent number: 10688565
    Abstract: In an embodiment, a cutting tool is disclosed. The cutting tool includes a base member and a DLC layer. The DLS layer contains diamond-like carbon and is located on a surface of the base member. The DLC layer includes one or more first regions. Each of the one or more first regions contains argon by 0.1-1 mass %.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: June 23, 2020
    Assignee: KYOCERA CORPORATION
    Inventors: Satoshi Mori, Yaocan Zhu
  • Patent number: 10654020
    Abstract: The present disclosure discloses a method of preparing a carbon-coated ceria hollow sphere, which includes the following steps of: S110, dispersing silica in a solvent to obtain a silica dispersion; S120, performing a hydrothermal reaction between the silica dispersion and a cerium salt to obtain a ceria-coated silica microsphere; S140, coating the ceria-coated silica microsphere with a carbon source to obtain a primary product, wherein the carbon source is dopamine; S160, sintering the primary product under a protective gas atmosphere to obtain a carbon-coated ceria microsphere; and S170, etching the carbon-coated ceria microsphere by using an etchant to obtain a carbon-coated ceria hollow sphere.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: May 19, 2020
    Assignee: DONGGUAN UNIVERSITY OF TECHNOLOGY
    Inventors: Wenjian Wu, Meili Zhang, Lirong Cai, Yongfu Qiu, Hongbo Fan
  • Patent number: 10626027
    Abstract: An electrode formed of synthetically produced, electrically conductive, doped diamond particles embedded in a carrier layer formed of electrically non-conductive material, wherein the diamond particles protrude on both sides of the carrier layer and come from a grain size range of 170 ?m to 420 ?m, wherein the diamond particles in the electrode have grain sizes which differ from one another by at most 50 ?m. At most 10% of the diamond particles have a grain size outside the particular grain size range.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: April 21, 2020
    Assignee: PRO AQUA DIAMANTELEKTRODEN PRODUKTION GMBH & CO KG
    Inventors: Michael Schelch, Wolfgang Staber, Robert Hermann, Wolfgang Wesner
  • Patent number: 10569317
    Abstract: A single-crystal diamond includes a pair of main surfaces facing each other, an impurity concentration being changed along a first direction in each of the main surfaces.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: February 25, 2020
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshiki Nishibayashi, Natsuo Tatsumi, Takuya Nohara, Yutaka Kobayashi, Akihiko Ueda
  • Patent number: 10566193
    Abstract: Using processes disclosed herein, materials and structures are created and used. For example, processes can include melting boron nitride or amorphous carbon into an undercooled state followed by quenching. Exemplary new materials disclosed herein can be ferromagnetic and/or harder than diamond. Materials disclosed herein may include dopants in concentrations exceeding thermodynamic solubility limits. A novel phase of solid carbon has structure different than diamond and graphite.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 18, 2020
    Assignee: North Carolina State University
    Inventor: Jagdish Narayan
  • Patent number: 10556211
    Abstract: A method of producing diamonds comprises the steps of producing a carbonaceous powder comprising nano-structured carbonaceous material and a transition metal and thermally treating the powder. The carbonaceous powder is produced by electrochemical erosion of graphite in a molten salt, the transition metal being incorporated into the carbonaceous powder during the electrochemical erosion. The step of thermally treating the carbonaceous powder is carried out in a non-oxidising atmosphere at a temperature of between 350° C. and 300° C., at a pressure of lower than 1 GPa. The method allows diamond to be produced at low pressures and low temperatures.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 11, 2020
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Ali Reza Kamali, Derek John Fray
  • Patent number: 10480065
    Abstract: A gas distribution plate for a chemical vapor deposition/infiltration system includes a body having a first side and a second side opposite the first side. The body may be hollow and may define an internal cavity. The gas distribution plate may also include a plurality of pass-through tubes extending through the internal cavity, a cavity inlet, and a plurality of cavity outlets. A reaction gas may be configured to flow through the plurality of pass-through tubes and a gaseous mitigation agent may be configured to flow into the internal cavity via the cavity inlet and out of the internal cavity via the plurality of cavity outlets to mix with reaction gas.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 19, 2019
    Assignee: GOODRICH CORPORATION
    Inventors: Ying She, Naveen G. Menon, Zissis A. Dardas, Thomas P. Filburn, Xiaodan Cai
  • Patent number: 10479933
    Abstract: A method includes positioning a porous structure in a pressure cell; injecting an inert pressure medium within the pressure cell; and pressurizing the pressure cell to a pressure that thermodynamically favors a crystalline phase of the porous structure over an amorphous phase of the porous structure to transition the amorphous phase of the porous structure into the crystalline phase of the porous structure.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 19, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Peter J. Pauzauskie, Jonathan C. Crowhurst, Marcus A. Worsley, Joe H. Satcher, Jr.
  • Patent number: 10442007
    Abstract: A composite polycrystal contains polycrystalline diamond formed of diamond grains that are directly bonded mutually, and compressed graphite dispersed in the polycrystalline diamond.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 15, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hitoshi Sumiya, Takeshi Sato
  • Patent number: 10392576
    Abstract: A coated sliding member 10 for use under an environment where it is in contact with lubricant, comprising: a base material 12; and a first hard carbon layer 14 having a thickness of 3 ?m or more formed on a surface of the base material by a vacuum arc method using carbon and consisting of diamond-like carbon, containing substantially no hydrogen and being configured only of carbon, and a second hard carbon layer 15 formed on a surface of the first hard carbon layer by a vacuum arc method using carbon and consisting of diamond-like carbon, containing substantially no hydrogen and being configured only of carbon and nitrogen, the film thickness of the second hard carbon layer being 3 to 35% of the film thickness of the first hard carbon layer.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: August 27, 2019
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventor: Katsuhiro Tsuji
  • Patent number: 10364389
    Abstract: A method of processing diamond particles to form fluorescent color centers involves providing diamond particles containing at least one dopant; annealing the diamond particles in a vacuum or an inert atmosphere; creating vacancies in the annealed diamond particles by irradiating the diamond particles with high energy radiation; and while the annealed diamond particles are being irradiated, causing a temperature of the diamond particles to be at least a temperature at which vacancies in the diamond particles diffuse and combine with the at least one dopant to form fluorescent color centers. The procedure can be repeated at least twice. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 30, 2019
    Assignee: Adámas Nanotechnologies, lnc.
    Inventor: Olga Aleksandrovna Shenderova
  • Patent number: 10316430
    Abstract: Single crystal diamond of which hardness and chipping resistance have been improved in a balanced manner, a method for manufacturing the single crystal diamond, and a tool containing the diamond are provided. Single crystal diamond contains nitrogen atoms, and a ratio of the number of isolated substitutional nitrogen atoms in the single crystal diamond to the total number of nitrogen atoms in the single crystal diamond is not lower than 0.02% and lower than 40%.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: June 11, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Yoshiki Nishibayashi, Natsuo Tatsumi, Hitoshi Sumiya, Akihiko Ueda, Yutaka Kobayashi
  • Patent number: 10273598
    Abstract: The present disclosure relates to methods for synthesizing synthetic CVD diamond material and high quality synthetic CVD diamond materials.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: April 30, 2019
    Assignee: Element Six Technologies Limited
    Inventors: Daniel James Twitchen, Andrew Michael Bennett, Rizwan Uddin Ahmad Khan, Philip Maurice Martineau
  • Patent number: 10252132
    Abstract: Systems and methods for improving an individual's response are disclosed. A system for improving an individual's response comprises an item of headwear having a microphone; a speaker; a recording device secured to a front of the item of headwear; an electroencephalogram cap for measuring and recording electrical activity in the individual's brain; and a computing device. The computing device includes machine readable media; an input device; an output device; a communication device for communicating over a network; a processor in data communication with the machine readable media, the input device, and the output device; and electronic instructions that, when executed by the processor, perform steps for causing the speakers to project noise to the individual and actuating the recording device to record the individual's field of view. The microphone allows the individual to communicate, over the network, with a third party.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 9, 2019
    Inventor: Kenith Carswell
  • Patent number: 10167674
    Abstract: Method of fabricating polycrystalline diamond include functionalizing surfaces of diamond nanoparticles with fluorine, combining the functionalized diamond nanoparticles with a polymer to form a mixture, and subjecting the mixture to high pressure and high temperature (HPHT) conditions to form inter-granular bonds between the diamond nanoparticles. A green body includes a plurality of diamond nanoparticles functionalized with fluorine, and a polymer material interspersed with the plurality of diamond nanoparticles. A method of forming cutting element includes functionalizing surfaces of diamond nanoparticles with fluorine, and combining the functionalized diamond nanoparticles with a polymer to form a mixture. The mixture is formed over a body, and the mixture and the body are subjected to HPHT conditions to form inter-granular bonds between the diamond nanoparticles and secure the bonded diamond nanoparticles to the body.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: January 1, 2019
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Valery N. Khabashesku, Anthony A. DiGiovanni, Gaurav Agrawal
  • Patent number: 10066317
    Abstract: A method for manufacturing a single crystal diamond in which vapor phase synthetic single crystal diamond is additionally deposited on a single crystal diamond seed substrate obtained by vapor phase synthesis, includes a step of measuring flatness of the seed substrate, a step of determining whether or not to flatten the seed substrate based on the measurement result of the flatness, and any one of the following two steps of a step of additionally depositing the vapor phase synthetic single crystal diamond after flattening the seed substrate for which the flattening is necessary based on the determination and a step of additionally depositing the vapor phase synthetic single crystal diamond without flattening the seed substrate for which the flattening is not necessary based on the determination.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 4, 2018
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hitoshi Noguchi, Daisuke Takeuchi, Satoshi Yamasaki, Masahiko Ogura, Hiromitsu Kato, Toshiharu Makino, Hideyo Okushi
  • Patent number: 10047731
    Abstract: Systems and methods for improving plasma propellant ablation/sublimation based systems are provided. One set of embodiments provides systems and methods for reducing carbon charring during plasma system (e.g., a plasma coating application system) propellant (e.g., a carbon-fluorine polymer) ablation and increasing heat transfer, ablation, and plasma thrust from plasma systems. In particular, one embodiment can include using a nano or micro-sized magnetic or electromagnetic field responsive material as particulates or microcapsules that are intermixed with polytetrafluoroethylene (e.g., Teflon®) nano-fibers, and using resulting fiber composites as the propellant material. Embodiments can include improved plasma system, e.g., pulsed plasma thrusters, plasma torches, plasma coating systems, etc, as well as nozzle improvements such as embodiments with magnetic structures disposed in relation to the nozzle. Alternative embodiments also include recovery and reuse systems.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: August 14, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Nishkamraj U. Deshpande, H. Fred Barsun, Steven D. Clark
  • Patent number: 10005672
    Abstract: A method of growing carbonaceous particles comprises depositing carbon from a carbon source, onto a particle nucleus, the particle nucleus being a carbon-containing material, an inorganic material, or a combination comprising at least one of the foregoing, and the carbon source comprising a saturated or unsaturated compound of C20 or less, the carbonaceous particles having a uniform particle size and particle size distribution. The method is useful for preparing polycrystalline diamond compacts (PDCs) by a high-pressure, high-temperature (HPHT) process.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: June 26, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Oleksandr V. Kuznetsov, Anthony A. DiGiovanni, Gaurav Agrawal, Michael H. Johnson
  • Patent number: 9969620
    Abstract: A method of forming nanoscale diamond particles comprises providing C2 and CH radicals at a low pressure, and nucleating the C2 and CH radicals to form carbon nanoparticles comprising a diamond phase and a non-diamond phase. The method further comprises removing at least a portion of the non-diamond phase in flight during the nucleation of the C2 and CH radicals to form a carbon powder comprising a plurality of nanoscale diamond particles.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 15, 2018
    Assignee: Case Western Reserve University
    Inventors: R. Mohan Sankaran, John C. Angus
  • Patent number: 9945185
    Abstract: A method of forming polycrystalline diamond includes encapsulating diamond particles, carbon monoxide, and carbon dioxide in a container. The encapsulated diamond particles, carbon monoxide, and carbon dioxide are subjected to a pressure of at least 4.5 GPa and a temperature of at least 1400° C. to form inter-granular bonds between the diamond particles. A cutting element includes polycrystalline diamond material comprising inter-bonded grains of diamond. The polycrystalline diamond material is substantially free of graphitic carbon and metallic compounds. The polycrystalline diamond material exhibits a density of at least about 3.49 g/cm3 and a modulus of at least about 1000 GPa. An earth-boring tool may include such a cutting element secured to a body.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 17, 2018
    Assignee: Baker Hughes Incorporated
    Inventor: Marc W. Bird
  • Patent number: 9884767
    Abstract: The present invention relates to a method for producing zeta positive hydrogenated nanodiamond particles, and to a method for producing zeta positive single digit hydrogenated nanodiamond dispersions. The present invention further relates to zeta positive hydrogenated nanodiamond powder and zeta positive single digit hydrogenated nanodiamond dispersion.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 6, 2018
    Assignee: CARBODEON LTD OY
    Inventor: Vesa Myllymäki
  • Patent number: 9865454
    Abstract: A substrate processing apparatus includes a vacuum chamber including a top plate, a rotary table rotatably disposed in the vacuum chamber, a first process gas supply part that supplies a first process gas to be adsorbed on a surface of a substrate placed on the rotary table, a plasma processing gas supply part that is disposed apart from the first process gas supply part in a circumferential direction of the rotary table and supplies a second process gas to the surface of the substrate, a separation gas supply part that supplies a separation gas for separating the first process gas and the second process gas, a plasma generator that converts the second process gas into plasma, and an elevating mechanism that moves at least one of the plasma generator and the rotary table upward and downward.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: January 9, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hitoshi Kato, Hiroyuki Kikuchi, Masato Yonezawa, Jun Sato, Shigehiro Miura
  • Patent number: 9816060
    Abstract: A composition which effervesces when added to water, comprises diamond particles with a median equivalent volumetric diameter (Dv50) of less than 40 ?m. The compositions are useful as cleaning compositions, particularly for cleaning diamonds.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 14, 2017
    Assignee: DF&G LTD
    Inventor: Andrew Coxon
  • Patent number: 9816202
    Abstract: A method of producing a large area plate of single crystal diamond from CVD diamond grown on a substrate substantially free of surface defects by chemical vapour deposition (CVD). The homoepitaxial CVD grown diamond and the substrate are severed transverse to the surface of the substrate on which diamond growth took place to produce the large area plate of single crystal CVD diamond.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 14, 2017
    Assignee: Element Six Technologies Limited
    Inventors: Geoffrey Alan Scarsbrook, Philip Maurice Martineau, Daniel James Twitchen
  • Patent number: 9745197
    Abstract: A mild, acid- and alkali-free purification method of detonation nanodiamond material from water-insoluble metal-containing impurities and product obtained thereof. The products thus obtained include nanodiamond and diamond-containing detonation blend. The method is implemented by an impact treatment of the detonation nanodiamond material with aqueous or water organic solutions of chelating agents in concentrations 0.5-20 wt. % at elevated temperature, wherein the weight-percent ratio of the detonation nanodiamond material to an undiluted chelating agent is substantially 1 to 0.2. Impact treatment of the detonation nanodiamond material in chelating agent solution may include boiling, ultrasonication, cavitational disintegration, and harsh treatment in sealed chamber at temperatures of up to about 300° C. and high pressure.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: August 29, 2017
    Assignee: CARBODEON LTD OY
    Inventors: Valery Dolmatov, Vesa Myllymaki
  • Patent number: 9702045
    Abstract: The present invention relates to metal plating solution comprising at least one source of metal ions and detonation nanodiamonds, wherein the detonation nanodiamonds are substantially free of negatively charged functionalities, and to a method for producing the solution. The present invention further relates to metal plating method and to a metallic coating comprising metal and detonation nanodiamonds substantially free of negatively charged functionalities.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: July 11, 2017
    Assignee: CARBODEON LTD OY
    Inventors: Vesa Myllymaki, Niko Rostedt
  • Patent number: 9682359
    Abstract: A method of processing hydrocarbons includes feeding a hydrocarbon feedstock into a reaction tube positioned within an opening of a waveguide, feeding a process gas into the reaction tube, receiving microwaves in the waveguide from a microwave generator, propagating microwave energy from the waveguide into the reaction tube to cause the formation of a first plasma in the reaction tube, that causes the feedstock and process gas to react and form into a product stream comprising a fuel product. The method also includes periodically, without stopping the propagation of microwave energy into the reaction tube, delivering a cleaning gas comprising oxygen. The method may also include forming a second plasma in the reaction tube, from the cleaning gas that causes burning off of a carbon residue film from the reaction tube; extracting the cleaning gas from the product stream; and delivering the extracted cleaning gas to the cleaning gas source.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: June 20, 2017
    Assignee: H Quest Partners, LP
    Inventors: George L. Skoptsov, Alan A. Johnson
  • Patent number: 9631295
    Abstract: Provided is a method for producing SiC single crystals while maintaining a temperature gradient such that the temperature decreases from within an Si solution inside a graphite crucible toward the solution surface, with the SiC seed crystals that have contacted the solution surface serving as the starting point for crystal seed growth, wherein when the crystal growth surface of the SiC seed crystals, which serves as the starting point for SiC single crystal growth, contacts the solution surface, the height by which the solution rises to the side of the SiC seed crystals is within the range where the SiC single crystals that have grown from the crystal growth surface and the SiC single crystals that have grown from the side grow as one SiC single crystal unit.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: April 25, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hironori Daikoku, Kazuhito Kamei
  • Patent number: 9600694
    Abstract: A manufacturing method for sapphire crystal material is disclosed, including a laser-etched bar code formed into the interior of the sapphire crystal material. The laser-etched bar code may be associated with one or more manufacturing parameters or other manufacturing data. The sapphire crystal may be used to create a cover sheet for use with a display screen of a portable electronic device.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: March 21, 2017
    Assignee: APPLE INC.
    Inventors: Dale N. Memering, Michael M. Li
  • Patent number: 9598623
    Abstract: The present disclosure provides nanodiamonds containing thermoplastic thermal composites. The nanodiamond containing thermoplastic thermal composite comprises from 0.01 to 80 wt.-% of nanodiamond particles, from 1 to 90 wt.-% of at least one filler, and from 5 to 80 wt.-% of at least one thermoplastic polymer. The present disclosure further relates to a method for manufacturing the nanodiamonds containing thermoplastic thermal composites, and to use of the nanodiamonds containing thermoplastic thermal composites.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 21, 2017
    Assignee: CARBODEON LTD OY
    Inventors: Vesa Myllymaki, Jesse Syren
  • Patent number: 9551090
    Abstract: 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 windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: January 24, 2017
    Assignee: Element Six Technologies Limited
    Inventors: Herman Philip Godfried, Geoffrey Alan Scarsbrook, Daniel James Twitchen, Evert Pieter Houwman, Wilhelmus Gertruda Maria Nelissen, Andrew John Whitehead, Clive Edward Hall, Philip Maurice Martineau
  • Patent number: 9546093
    Abstract: [Task to be Solved] One of the principal objects of the invention is to collect minute diamond particles of D50 of 20 nm and smaller, by MICROTRAC UPA 150, in high precision and high definition. [Means for Solving the Task] The minute diamond particles of the invention are recovered by a method comprising: (1) joining or combining a hydrophilic functional group with a surface of diamond powder that comprises particles of a primary particle size of 50 nm or less, so as to impart hydrophilic nature on the surface, (2) placing the hydrophilic diamond particles to hold in suspension in water to form a slurry, (3) subjecting said slurry to a hyper-centrifugal process at a centrifugal force of 4×103 G and at the same time a centrifugal load product of 200×103 G·min.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 17, 2017
    Inventors: Youichi Morita, Tatsuya Takimoto, Naoki Komatsu, Hiroshi Yamanaka, Hisao Shirasawa, Hiroshi Ishizuka
  • Patent number: 9469918
    Abstract: A multilayer substrate includes a diamond layer CVD grown on a composite layer. The composite layer includes particles of diamond and silicon carbide and, optionally, silicon. A loading level (by volume) of diamond in the composite layer can be ?5%; ?20%; ?40%; or ?60%. The multilayer substrate can be used as an optical device; a detector for detecting radiation particles or electromagnetic waves; a device for cutting, drilling, machining, milling, lapping, polishing, coating, bonding, or brazing; a braking device; a seal; a heat conductor; an electromagnetic wave conductor; a chemically inert device for use in a corrosive environment, a strong oxidizing environment, or a strong reducing environment, at an elevated temperature, or under a cryogenic condition; or a device for polishing or planarization of other devices, wafers or films.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: October 18, 2016
    Assignee: II-VI Incorporated
    Inventors: Wen-Qing Xu, Elgin E. Eissler, Chao Liu, Charles D. Tanner, Charles J. Kraisinger, Michael Aghajanian
  • Patent number: 9449631
    Abstract: Systems and methods for tuning seed layer hardness in components of magnetic recording systems are described. One such system includes a substrate including a component of a magnetic recording system, a first deposition source configured to deposit a seed layer material on a portion of a top surface of the substrate at a first angle, and a second deposition source configured to deposit a carbon material including sp3 carbon bonds on the portion of the top surface at a second angle not equal to the first angle, where the first deposition source and the second deposition source deposit the seed layer material and the carbon material, respectively, simultaneously. The component can be a slider or a magnetic medium.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: September 20, 2016
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Yongping Gong, Phuwanai Bunnak, Kah Choong Loo, Krisda Siangchaew
  • Patent number: 9260797
    Abstract: A single crystal CVD synthetic diamond material comprising: a total as-grown nitrogen concentration equal to or greater than 5 ppm, and a uniform distribution of defects, wherein said uniform distribution of defects is defined by one or more of the following characteristics: (i) the total nitrogen concentration, when mapped by secondary ion mass spectrometry (SIMS) over an area equal to or greater than 50×50 ?m using an analysis area of 10 ?m or less, possesses a point-to-point variation of less than 30% of an average total nitrogen concentration value, or when mapped by SIMS over an area equal to or greater than 200×200 ?m using an analysis area of 60 ?m or less, possesses a point-to-point variation of less than 30% of an average total nitrogen concentration value; (ii) an as-grown nitrogen-vacancy defect (NV) concentration equal to or greater than 50 ppb as measured using 77K UV-visible absorption measurements, wherein the nitrogen-vacancy defects are uniformly distributed through the synthetic single cryst
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: February 16, 2016
    Assignee: Element Six Limited
    Inventors: Harpreet Kaur Dhillon, Daniel James Twitchen, Rizwan Uddin Ahmad Khan
  • Patent number: 9227166
    Abstract: There are provided sufficiently strong, hard, and heat resistant, dense and homogenous polycrystalline diamond applicable to cutting tools, dressers, dies and other working tools and excavation bits and the like, and a cutting tool having a cutting edge of the polycrystalline diamond. The polycrystalline diamond is formed substantially only of diamond formed using a composition of material containing a non diamond type carbon material, the composition of material being converted directly into diamond and sintered at ultra high pressure and ultra high temperature without aid of a sintering aid or a catalyst, and has a mixed microstructure having a fine crystal grain of diamond having a maximal grain size of at most 100 nm and an average grain size of at most 50 nm and a coarse crystal grain of diamond in the form of one of a platelet and a granule having a grain size of at least 50 nm and at most 10,000 nm.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: January 5, 2016
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Hitoshi Sumiya
  • Patent number: 9216493
    Abstract: A method of making diamond including mixing graphene with diamond seed to form a powder mixture, and then sintering the powder mixture, in the absence of a transition metal catalyst, at high pressure and high temperature; and a method of making a polycrystalline diamond compact including mixing graphene in diamond powder to form a powder mixture with less than about 50% graphene by weight, and then sintering the powder mixture, in the absence of a transition metal catalyst, at high pressure and high temperature.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: December 22, 2015
    Assignee: Diamond Innovations, Inc.
    Inventors: Abds-Sami Malik, Hui Zhang
  • Patent number: 9192899
    Abstract: 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 sintered body not including the iron group metal, on the other hand, does not have sufficient mechanical strength to be used as a tool material, and also does not have conductivity, which makes electrical discharge machining impossible, and thus processing thereof is difficult. A diamond polycrystalline body having high heat resistance and mechanical strength and having conductivity enabling electrical discharge machining is obtained by using only an amorphous or fine graphite-type carbon material as a starting material, adding boron thereto and concurrently performing conversion into diamond and sintering in an ultra-high pressure and temperature condition.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 24, 2015
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Hitoshi Sumiya
  • Patent number: 9156695
    Abstract: A method of fabricating a carbon allotrope is disclosed. The method includes forming an intermediate carbon template from a carbon feedstock; and creating a pressure and temperature in the carbon template suitable for fabrication of the carbon allotrope from the intermediate carbon template. The pressure and temperature may be created from a shockwave resulting from collapse of a bubble formed during a bubble cavitation process.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: October 13, 2015
    Assignee: RAYTHEON COMPANY
    Inventor: Chae Deok Lee
  • Patent number: 9085723
    Abstract: The present disclosure provides nanodiamonds containing thermoplastic thermal composites. The nanodiamond containing thermoplastic thermal composite comprises from 0.01 to 80 wt.-% of nanodiamond particles, from 1 to 90 wt.-% of at least one filler, and from 5 to 80 wt.-% of at least one thermoplastic polymer. The present disclosure further relates to a method for manufacturing the nanodiamonds containing thermoplastic thermal composites, and to use of the nanodiamonds containing thermoplastic thermal composites.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 21, 2015
    Assignee: CARBODEON LTD OY
    Inventors: Vesa Myllymaki, Jesse Syren
  • Patent number: 9067797
    Abstract: The invention provides methods and systems for producing large size diamonds. The methods include using carbon containing gases and supplementary gases to form reaction zones that are suitable for diamonds to grow; controlling the temperatures that are suitable for diamonds to grow; and keeping the small size seeds in motion in the reaction zones to form large size diamonds. The method provides controlling the high temperature endurable small size seeds at suitable temperatures for diamonds to grow and keep them in motion in the reaction zones. The invention also provides systems that allow all the surfaces of the high temperature endurable small size seeds continually extend to form diamonds, then to form large size diamonds. The invention provides a large-scale, low cost production of large size diamonds.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: June 30, 2015
    Inventor: Xi Chu
  • Patent number: 9061917
    Abstract: A combinatorial synthesis of the diamond unit cell is disclosed wherein a carbon atom free of meta-stable radical impurities reacts with cyclic hydrocarbon compounds or heterocyclic compounds whose structure is tetrahedral or nearly tetrahedral. Reactions conducted in the vapor phase and in the solid state are disclosed.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 23, 2015
    Assignee: Unit Cell Diamond LLC
    Inventor: Daniel Hodes
  • Patent number: 9034468
    Abstract: Embodiments presented herein relate generally to the formation of diamond-like carbon, forms of diamond-like carbon and/or carbon dioxide fixation.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 19, 2015
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Yun-hai Wang, Qing-yun Chen, Xiang-lin Li, Jing-lian Zhao
  • Patent number: RE47114
    Abstract: A gettered polycrystalline group III metal nitride is formed by heating a group III metal with an added getter in a nitrogen-containing gas. Most of the residual oxygen in the gettered polycrystalline nitride is chemically bound by the getter. The gettered polycrystalline group III metal nitride is useful as a raw material for ammonothermal growth of bulk group III nitride crystals.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: November 6, 2018
    Assignee: SLT Technologies, Inc.
    Inventors: Mark P. D'Evelyn, Derrick S. Kamber