Metal Or Metal Oxide Patents (Class 51/309)
  • Patent number: 10301882
    Abstract: In an embodiment, a polycrystalline diamond compact includes a substrate, and a polycrystalline diamond (“PCD”) table bonded to the substrate and including an exterior working surface, at least one lateral surface, and a chamfer extending between the exterior working surface and the at least one lateral surface. The PCD table includes bonded diamond grains defining interstitial regions. The PCD table includes a first region adjacent to the substrate and a second leached region adjacent to the first region and extending inwardly from the exterior working surface to a selected depth. At least a portion of the interstitial regions of the first region include an infiltrant disposed therein. The interstitial regions of the second leached region are substantially free of metal-solvent catalyst. The second region is defined by the exterior working surface, the lateral surface, the chamfer, and a generally horizontal boundary located below the chamfer.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: May 28, 2019
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Debkumar Mukhopadhyay, Kenneth E. Bertagnolli, Jair J. Gonzalez
  • Patent number: 10273383
    Abstract: To perform polishing while reducing an LPD and preventing contamination with metals, particularly nickel and copper, in final polishing of a silicon wafer. A polishing composition contains abrasives, a water-soluble polymer, a basic compound, a chelating agent, and water, in which, when the particle diameter equivalent to a particle diameter at a cumulative volume of 10% from a smaller particle diameter side is defined as D10, the particle diameter equivalent to a particle diameter at a cumulative volume of 50% from the smaller particle diameter side is defined as D50, and the particle diameter equivalent to a particle diameter at a cumulative volume of 90% from the smaller particle diameter side is defined as D90 in a particle size distribution of particles present in the polishing composition, a value of a coarse particle frequency parameter A defined by (Expression 1) illustrated below is less than 1.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: April 30, 2019
    Assignee: FUJIMI INCORPORATED
    Inventors: Kohsuke Tsuchiya, Satoshi Momota
  • Patent number: 10273575
    Abstract: In one aspect, articles are described comprising wear resistant coatings employing one or more composite refractory layers. For example, a coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a multiphase refractory layer comprising an alumina phase and a zirconia phase, wherein the zirconia phase has a texture coefficient for the (200) growth direction, TC(200), greater than 4.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 30, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Rodrigo Alejandro Cooper, Karl Heinz Wendt, Peter Leicht, Bhaskar Alok, Yixiong Liu
  • Patent number: 10259048
    Abstract: A surface-coated cutting tool includes a base material and a coating. A hard layer in the coating includes a plurality of crystal grains having a sodium chloride-type crystal structure. When the angle of intersection between the normal direction to (111) plane that is a crystal plane of the crystal grain and the normal direction to the surface of the base material is measured, a proportion A of the crystal grains having the angle of intersection of 0 degree or more to less than 20 degrees is 50% or more. The length of ?3 grain boundaries is less than 50% of the length of ?3-29 grain boundaries. The crystal grain has a layered structure in which a first layer and a second layer are alternately stacked. The total thickness of the first layer and the second layer adjacent to each other is 3 to 40 nm.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: April 16, 2019
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Hideaki Kanaoka, Satoshi Ono, Shinya Imamura
  • Patent number: 10213901
    Abstract: Polycrystalline diamond abrasive elements made by incorporating low levels of at least one metal boride, the metal being selected from magnesium, calcium, aluminum, strontium, yttrium, zirconium, hafnium and chromium, and the rare earth metals, particularly cerium and lanthanum. The benefits of adding boron to polycrystalline diamond abrasive compacts are exploited together with simultaneously minimizing or eliminating the detrimental effects of the presence of oxygen.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: February 26, 2019
    Assignee: Element Six Abrasives SA
    Inventors: Anine Hester Ras, Geoffrey John Davies
  • Patent number: 10202309
    Abstract: A cBN sintered material cutting tool is provided. The cBN cutting tool includes a cutting tool body, which is a sintered material including cBN grains and a binder phase, wherein the sintered material comprises: the cubic boron nitride grains in a range of 40 volume % or more and less than 60 volume %; and Al in a range from a lower limit of 2 mass % to an upper limit Y, satisfying a relationship, Y=?0.1X+10, Y and X being an Al content in mass % and a content of the cubic boron nitride grains in volume %, respectively, the binder phase comprises: at least a Ti compound; Al2O3; and inevitable impurities, the Al2O3 includes fine Al2O3 grains with a diameter of 10 nm to 100 nm dispersedly formed in the binder phase, and there are 30 or more of the fine Al2O3 grains generated in an area of 1 ?m×1 ?m in a cross section of the binder phase.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kenji Yumoto, Yosuke Miyashita
  • Patent number: 10160658
    Abstract: The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 25, 2018
    Assignee: Rhodia Operations
    Inventors: Naotaka Ohtake, Mitsuhiro Okazumi, Fabien Ocampo
  • Patent number: 10155892
    Abstract: Abrasive particles include: 0.50 to 5.00 weight percent of seed particles for alpha-alumina formation selected from the group consisting of alpha-Fe2O3 seed particles, alpha-Al2O3 seed particles, and combinations thereof; 0.50 to 5.00 weight percent of MgO; 0.02 to 0.40 weight percent of Li2O or a molar equivalent amount of at least one alkali metal oxide selected from the group consisting of: Na2O; K2O; combinations of Na2O and Li2O; combinations of K2O and Li2O; combinations of Na2O and K2O; and combinations of Li2O, Na2O, and K2O; and 91.08 to 99.48 weight percent of Al2O3. Methods of making the abrasive particles and abrasive articles incorporating them are also disclosed.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 18, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Larry D. Monroe, Grant E. Greske
  • Patent number: 10113239
    Abstract: A cutting tool includes: a base including cemented carbide containing Cr; and a coating layer including a Ti-based layer including at least a layer of Ti(Cx1Ny1Oz1) (0?x1?1, 0?y1?1, 0?z1?1, x1+y1+z1=1), an Al2O3 layer, and an outermost layer of Ti(Cx3Ny3Oz3) (0?x3?1, 0?y3?1, 0?z3?1, x3+y3+z3=1), and a content of Cr contained at a first Ti-based layer of the Ti-based layer is lower than a content of Cr contained in the base, and higher than a content of Cr contained at the Al2O3 layer, and a content of Cr contained at the outermost layer is higher than the content of Cr contained at the Al2O3 layer in a glow-discharge emission spectrometry.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: October 30, 2018
    Assignee: KYOCERA CORPORATION
    Inventors: Hayato Kubo, Kou Ri
  • Patent number: 10106714
    Abstract: A shaped abrasive particle including a body having a length (l), a width (w), and a height (hi), wherein the height is at least about 28% of the width, and a percent flashing (f) of at least about 10% and not greater than about 45% for a total side area of the body.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 23, 2018
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Doruk O. Yener, Jennifer H. Czerepinski, Michael D. Kavanaugh, Samuel S. Marlin, Kristin K. Breder, Sujatha Iyengar
  • Patent number: 10053755
    Abstract: A method for treating a super-hard structure, the method including heating the super-hard structure to a treatment temperature of at least 500 degrees centigrade and cooling the super-hard structure from the treatment temperature to a temperature of less than 200 degrees centigrade at a mean cooling rate of at least 1 degree centigrade per second and at most 100 degrees centigrade per second to provide a treated super-hard structure. A PCBN structure produced by the method may have flexural strength of at least 650 MPa.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 21, 2018
    Assignee: Element Six Limited
    Inventors: Declan John Carolan, Neal Murphy, Alojz Ivankovic
  • Patent number: 10047248
    Abstract: A slurry composition for the CMP process includes a dispersion medium, and ceria particles having a NO3 functional group bonded to surfaces thereof. The ceria particles are contained in an amount of about 0.1 parts by weight to about 15 parts by weight based on 100 parts by weight of the dispersion medium.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: August 14, 2018
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Ye-hwan Kim, Un-gyu Paik, Ji-hoon Seo
  • Patent number: 10040971
    Abstract: Disclosed is a polishing agent comprising: water; tetravalent metal hydroxide particles; and an additive, wherein the additive contains at least one of a cationic polymer and a cationic polysaccharide. The present invention can provide a polishing agent which is capable of polishing an insulating film at a high speed with less polishing flaws, and having a high polishing rate ratio of a silicon oxide film and a stopper film, in the CMP technology of flattening insulating film. The present invention can also provide a polishing agent set for storing the polishing agent, and a method for polishing a substrate using this polishing agent.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 7, 2018
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yousuke Hoshi, Daisuke Ryuzaki, Naoyuki Koyama, Shigeru Nobe
  • Patent number: 10011000
    Abstract: A method of processing a polycrystalline diamond material includes exposing at least a portion of a polycrystalline diamond material to a processing solution, the polycrystalline diamond material including a metallic material disposed in interstitial spaces defined within the polycrystalline diamond material. The method includes exposing an electrode to the processing solution, applying a positive charge to the polycrystalline diamond material, and applying a negative charge to the electrode. An assembly for processing a polycrystalline diamond body includes a polycrystalline diamond body and an electrode that are in electrical communication with a volume of processing solution, and a power source configured to apply a positive charge to the polycrystalline diamond body and a negative charge to the electrode.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 3, 2018
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Daren Nathaniel Heaton, Jeremy Brett Lynn, Mark Pehrson Chapman, Oakley D. Bond
  • Patent number: 9993878
    Abstract: A coated cutting tool includes a substrate and a coating layer formed onto the surface of the substrate. The coating layer contains an ?-type aluminum oxide layer. A residual stress value at the (116) plane of the ?-type aluminum oxide layer is greater than 0. A residual stress value at the (012) plane of the ?-type aluminum oxide layer is smaller than 0.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: June 12, 2018
    Assignee: TUNGALOY CORPORATION
    Inventors: Kinya Takahashi, Hiroyuki Satoh
  • Patent number: 9981317
    Abstract: A polycrystalline CVD synthetic diamond work piece for use in a polycrystalline CVD synthetic diamond tool, the polycrystalline CVD synthetic diamond work piece comprising: a working surface; and a rear mounting surface; wherein an average lateral grain size of the rear mounting surface is no less than 10 ?m, and wherein the working surface comprises: (a) smaller diamond grains than the rear mounting surface; (b) an average lateral grain size in a range 10 nm to 15 ?m; and (c) a Raman signal generated by a laser focused on the working surface which exhibits one or more of the following characteristics: (1) an sp3 carbon peak at 1332 cm?1 having a full width half-maximum of no more than 8.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: May 29, 2018
    Assignee: Element Six Technologies Limited
    Inventor: Mark McClymont
  • Patent number: 9980480
    Abstract: Biocidal roofing granules are prepared by providing a mineral core and at least one biocidal photocatalytic metal oxide. A gel-forming inorganic coating medium is prepared and used to coat the mineral core to form a coating layer having a porous network on the mineral core, and the at least one biocidal photocatalytic metal oxide is disposed in the porous network.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: May 29, 2018
    Assignee: CertainTeed Corporation
    Inventors: Sophie Vanpoulle, Van Nhan Nguyen, Alexandra Dekoninck
  • Patent number: 9982177
    Abstract: A slurry includes abrasive grains and water, wherein the abrasive grains include tetravalent cerium hydroxide particles and produce light transmittance of at least 50%/cm for light with a wavelength of 500 nm in an aqueous dispersion with the content of the abrasive grains adjusted to 1.0 mass %. A polishing liquid includes abrasive grains, an additive and water, wherein the abrasive grains include tetravalent cerium hydroxide particles and produce light transmittance of at least 50%/cm for light with a wavelength of 500 nm in an aqueous dispersion with the content of the abrasive grains adjusted to 1.0 mass %.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: May 29, 2018
    Assignee: HITACHI CHEMICAL COMPANY, LTD
    Inventors: Tomohiro Iwano, Hirotaka Akimoto, Takenori Narita, Tadahiro Kimura, Daisuke Ryuzaki
  • Patent number: 9963348
    Abstract: Apparatuses and methods for leaching catalysts from a polycrystalline diamond compact (PDC) may utilize a high pressure jet. For example, a method may include impinging a jet of leaching fluid, including one or both of an acid and a caustic material, on a surface of a PDC disposed on a substrate at a fluid pressure ranging between 125 psi and 10,000.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 8, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Gary E. Weaver
  • Patent number: 9881802
    Abstract: A polishing liquid includes abrasive grains, an additive and water, wherein the abrasive grains include a tetravalent metal element hydroxide, and produce a liquid phase with a nonvolatile content of 500 ppm or greater when an aqueous dispersion with a content of the abrasive grains adjusted to 1.0 mass % has been centrifuged for 50 minutes at a centrifugal acceleration of 1.59×105 G.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: January 30, 2018
    Assignee: HITACHI CHEMICAL COMPANY, LTD
    Inventor: Tomohiro Iwano
  • Patent number: 9873185
    Abstract: A system and process for rapid and uniform curing of grinding wheels (2) to obtain grinding wheels (2) with better durability, at 180-220° C. deploying microwave energy at 800-5000 MHz in which closely fitting green wheel sample holders (1) are made of carbon bearing microwave susceptor materials such as graphite, silicon carbide with tiny holes on the surface. These sample holders (1) help in maintaining the shape and geometry of the final wheels (2) after curing and reduce energy consumption. The performance of the grinding wheels (2) cured by this process is better than those cured by presently used process employing steel plate sample holders of the present state-of-art.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: January 23, 2018
    Assignee: Pradeep Metals Limited
    Inventors: Pradeep Goyal, Shivanand Borkar, Ritesh Jaiswal
  • Patent number: 9840649
    Abstract: A superabrasive material and method of making the superabrasive material are provided. The superabrasive material may comprise a superabrasive crystal having an irregular surface. The superabrasive material further comprises a plurality of structure defects within the superabrasive crystal. The plurality of structure defects may cause micro-chipping when used as grinding materials.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: December 12, 2017
    Assignee: DIAMOND INNOVATIONS INC.
    Inventors: Shuang Ji, Christopher Long, Susanne Sowers, Kai Zhang
  • Patent number: 9828528
    Abstract: The invention provides a chemical-mechanical polishing composition including first abrasive particles, wherein the first abrasive particles are wet-process ceria particles, have a median particle size of about 40 nm to about 100 nm, are present in the polishing composition at a concentration of about 0.005 wt. % to about 2 wt. %, and have a particle size distribution of at least about 300 nm, a functionalized heterocycle, a pH-adjusting agent, and an aqueous carrier, and wherein the pH of the polishing composition is about 1 to about 6. The invention also provides a method of polishing a substrate, especially a substrate comprising a silicon oxide layer, with the polishing composition.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: November 28, 2017
    Assignee: Cabot Microelectronics Corporation
    Inventors: Brian Reiss, Dana Sauter Van Ness, Viet Lam, Alexander Hains, Steven Kraft, Renhe Jia
  • Patent number: 9790411
    Abstract: An abrasive article can include a body including a bond material and abrasive particles contained within the bond material. The abrasive particles can include nanocrystalline alumina. The bond material can include an organic material. In an embodiment, the nanocrystalline alumina may have an average crystallite size of not greater than 1.5 microns. In another embodiment, the bond material and the abrasive particles may be mixed and the mixture may cure to form the abrasive article of embodiments herein.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 17, 2017
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Yang Zhong, Nilanjan Sarangi, Shu Yang, Ralph Bauer, Stefan Vujcic
  • Patent number: 9758697
    Abstract: The invention provides chemical-mechanical polishing compositions and methods of chemically-mechanically polishing a substrate, especially a substrate comprising a silicon oxide layer, with the chemical-mechanical polishing compositions. The polishing compositions comprise first abrasive particles, wherein the first abrasive particles are wet-process ceria particles, have a median particle size of about 75 nm to about 200 nm, and are present in the polishing composition at a concentration of about 0.005 wt. % to about 2 wt. % a functionalized heterocycle, a cationic polymer selected from a quaternary amine, is cationic polyvinyl alcohol, and a cationic cellulose, optionally a carboxylic acid, a pH-adjusting agent, and an aqueous carrier, and have a pH of about 1 to about 6.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: September 12, 2017
    Assignee: Cabot Microelectronics Corporation
    Inventors: Brian Reiss, Dana Sauter Van Ness, Viet Lam, Renhe Jia
  • Patent number: 9724424
    Abstract: A quartz or otherwise similar crystal (‘host crystal’) embedded with minerals, metals, homeopathic, organic/inorganic, and magnetic materials (which allow for magnetic interactions) and the method for embedded ‘host crystal’ with said materials is disclosed. The ‘host crystal’ can be any size, shape, cut, or color of crystal. A hole/depression is first drilled/etched anywhere on the quartz or similar ‘host crystal’, this hole is then filled with a chosen combination of materials using force/compression, and are semi-permanently sealed by compressing metal flake or powder onto/into the top of the material-filled hole in the ‘host crystal’.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 8, 2017
    Inventors: DeCauter Ward Stoppelbein, Carly Ann Babb
  • Patent number: 9701043
    Abstract: An object of the present invention is to provide a dicing blade which does not cause cracking and breaking even in a workpiece formed from a brittle material, and can stably perform cutting process in a ductile mode on the workpiece with high precision. A dicing blade 26 which performs the cutting process on the workpiece is integrally formed of a diamond sintered body 80 which is formed by sintering diamond abrasive grains 82 so as to have a discoid shape, and a content of the diamond abrasive grains 82 of the diamond sintered body 80 is 80 vol % or more. It is preferable that recessed parts which are formed on a surface of the diamond sintered body 80 are continuously provided in an outer circumferential part of the dicing blade 26 along a circumferential direction.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: July 11, 2017
    Assignees: Tokyo Seimitsu Co., Ltd., Shin-Nihon Tech Inc.
    Inventors: Takashi Fujita, Yasuo Izumi, Junji Watanabe
  • Patent number: 9694426
    Abstract: There is provided a cutting tool having high wear resistance and fracture resistance by reducing the occurrence of thermal cracking on a cutting edge even during a cutting process of a heat-resistant alloy in which the cutting edge reaches high temperatures. The cutting tool is made from a cemented carbide that is composed mainly of a WC phase and contains 11.5-12.5% by mass of Co and 0.2-0.6% by mass of Cr in terms of Cr3C2. The WC phase has a mean particle size of 0.85-1.05 ?m, an antimagnetic force (Hc) of 13.0-16.0 kA/m, and a Rockwell hardness (HRA) of 89.5-90.5.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: July 4, 2017
    Assignee: KYOCERA CORPORATION
    Inventor: Takahiko Makino
  • Patent number: 9676077
    Abstract: An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is the volume percent of abrasive grains within the total volume of the body and VBM is the volume percent of bond material within the total volume of the body.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: June 13, 2017
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay
  • Patent number: 9669508
    Abstract: A grinding wheel assembly for use in a sharpening system includes a grinding wheel configured to be mounted in the sharpening system to carry out sharpening operations in which the grinding wheel removes material from a blade to be sharpened, such as the blade of an ice skate. The grinding wheel assembly further includes an identification tag attached to the grinding wheel, the identification tag having (1) secure memory including a usage location for persistently and securely storing a usage tracking value, and (2) interface circuitry for engaging in communication with a transceiver of the sharpening system to enable electronic circuitry of the sharpening system to both read from and write to the usage location to track usage of the grinding wheel for sharpening operations. The memory may also store other data including user-specific system parameters usable to customize operation, and fault information usable to diagnose fault conditions.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: June 6, 2017
    Assignee: VELASA SPORTS, INC.
    Inventors: Russell K. Layton, Jr., Daniel A. Beaudet, Ivan D. Goryachev
  • Patent number: 9656297
    Abstract: A pretreatment solution and process for pretreating steel substrates with an aqueous solution to form a thin partially crosslinked layer that passivates the steel surface and inhibits the formation of flash rust, in which the thin partially crosslinked layer is dried in ambient air, and the dried layer enhances the cathodic disbondment resistance of the overlying paint system. In the process an aqueous precursor solution (A) containing at least one amino-functional silane, at least one of a dissolved silicate or a dissolved aluminate and at least a metal salt; is mixed with an aqueous precursor solution (B) containing at least an epoxy resin. The molar amount of amino-functional silane in precursor solution (A) is at considerably lower than the stoichiometric amount that is needed for completing the crosslinking reaction with the epoxy resin in precursor solution (B) so that unreacted epoxy groups are made available for further crosslinking with the overlying paint.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: May 23, 2017
    Assignee: NEI Corporation
    Inventor: Jiong Liu
  • Patent number: 9650712
    Abstract: In one aspect, articles are described herein comprising refractory coatings employing an inter-anchored multilayer architecture. Articles having refractory coatings described herein, in some embodiments, are suitable for high wear and/or abrasion applications such as metal cutting operations. A coated article described herein comprises a substrate and a coating deposited by CVD adhered to the substrate, the coating including a refractory layer comprising a plurality of sublayer groups, a sublayer group comprising a Group IVB metal nitride sublayer and an adjacent layer alumina sublayer, the Group IVB metal nitride sublayer comprising a plurality of nodules interfacing with the alumina sublayer.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 16, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Zhenyu Liu, Yixiong Liu
  • Patent number: 9636800
    Abstract: A cubic nitride compact containing a polycrystalline mass of cubic boron nitride particles, present in an amount of at least 70 percent by volume, and a binder phase, which is metallic in character. In addition, a compact in which the binder phase is preferably superalloy in character.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: May 2, 2017
    Assignee: ELEMENT SIX ABRASIVES S.A.
    Inventors: Anton Raoul Twersky, Nedret Can
  • Patent number: 9597774
    Abstract: A cubic nitride compact having a polycrystalline mass of cubic boron nitride particles, present in an amount of at least 70 percent by volume and a binder phase, which is metallic in character. In addition, a compact in which the binder phase is preferably superalloy in character.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: March 21, 2017
    Assignee: ELEMENT SIX ABRASIVES S.A.
    Inventors: Anton Raoul Twersky, Nedret Can
  • Patent number: 9566649
    Abstract: A coated cutting tool has a base material of a WC-based cemented carbide and a film formed on the surface of the base material by a chemical vapor deposition method. The coated cutting tool has a rake face, a flank face and a cutting edge ridgeline part positioned between the rake face and the flank face being provided, wherein a total film thickness of the entire film is 3 to 20 ?m in an average film thickness, and one or more oblique cracks where an extension angle of the crack to the surface of the film is 45° or less are present at the rake face within 300 ?m from the cutting edge ridgeline part.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: February 14, 2017
    Assignee: Tungaloy Corporation
    Inventor: Yusuke Hirano
  • Patent number: 9539701
    Abstract: An abrasive article includes a bonded abrasive body having abrasive particles comprising microcrystalline alumina (MCA) contained within a bond material. In an embodiment, the bonded abrasive body has a strength ratio (MOR/MOE) of at least about 0.80. Additionally, the bonded abrasive body may have a MOR of at least 40 MPa for a MOE or at least about 40 GPa and the bonded abrasive body may be capable of grinding a workpiece that includes metal at a speed of at least about 60 m/s at a material removal rate of at least about 0.4 in3/min/in (258 mm3/min/mm).
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 10, 2017
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Nilanjan Sarangi, Renaud Fix, Stephen Woods, Jim M. Gaffney, John Campaniello, John R. Besse, Stephen E. Fox
  • Patent number: 9505952
    Abstract: The invention provides a chemical-mechanical polishing composition including first abrasive particles, wherein the first abrasive particles are wet-process ceria particles, have a median particle size of about 40 nm to about 100 nm, are present in the polishing composition at a concentration of about 0.005 wt. % to about 2 wt. %, and have a particle size distribution of at least about 300 nm, a functionalized heterocycle, a pH-adjusting agent, and an aqueous carrier, and wherein the pH of the polishing composition is about 1 to about 6. The invention also provides a method of polishing a substrate, especially a substrate comprising a silicon oxide layer, with the polishing composition.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 29, 2016
    Assignee: Cabot Microelectronics Corporation
    Inventors: Brian Reiss, Dana Sauter Van Ness, Viet Lam, Alexander Hains, Steven Kraft, Renhe Jia
  • Patent number: 9480970
    Abstract: The present invention relates to a carrier for supporting a catalyst for a spacecraft thruster and to a method for preparing the same, and more particularly, to a catalyst carrier for a spacecraft thruster and method for preparing the same, in which the diameter and distribution of pores of the carrier are controlled using a pore inducing material to lengthen the life of the catalyst.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: November 1, 2016
    Assignee: Korea Aerospace Research Institute
    Inventors: Su Kyum Kim, Myoung Jong Yu, Sung June Cho, Sang Ryool Lee
  • Patent number: 9446502
    Abstract: Precursor alpha alumina abrasive particles in a mold are subjected to a drying process that cracks or fractures at least a majority of the precursor abrasive particles into at least two pieces thereby producing abrasive shards having a smaller size than the mold cavity from which they were made. The smaller abrasive shards, once formed, could be reassembled like jigsaw puzzle pieces to reproduce the original cavity shape of the mold from which they were made. The cracking or fracturing of the precursor abrasive particles is believed to occur by ensuring that the surface tension of the abrasive dispersion to the walls of the mold is greater than the internal attractive forces of the abrasive dispersion as the abrasive dispersion is dried within the mold cavity.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: September 20, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Dwight D. Erickson, Scott R. Culler, Negus B. Adefris, John T. Boden, John D. Haas
  • Patent number: 9403282
    Abstract: A diamond-containing blade includes a blade body having at proximal end a connection part to be fitted into a gripper; and an edge longitudinally formed along one side of the blade body, wherein the blade is manufactured by a process in which a powder mixture for constituting the edge, including 20 wt % or less of diamond particles coated with Ti and having a particle size of 20 ?m or less and residual Ti powder or Ti alloy powder, is charged in a space of a mold corresponding to the edge, Ti powder or Ti alloy powder for constituting the blade body is charged in another space of the mold corresponding to the blade body, the charged powders are pressed to obtain a molded product, the molded product is sintered to obtain a sintered body, and then an edge of the sintered body is sharpened.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 2, 2016
    Assignee: FOREVER CO., LTD.
    Inventor: Kimiko Sueda
  • Patent number: 9394592
    Abstract: The invention relates to hard-metal body comprising a hard-metal, the hard-metal comprising tungsten carbide grains and metal binder comprising cobalt having a concentration of tungsten dissolved therein, the body comprising a surface region adjacent a surface and a core region remote from the surface, the surface region and the core region being contiguous with each other; the mean binder fraction of the core region being greater than that of the surface region; the mean carbon concentration within the binder being higher in the surface region than in the core region; to tools comprising same and methods of making same.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: July 19, 2016
    Assignee: ELEMENT SIX GMBH
    Inventors: Igor Yuri Konyashin, Sebastian Ralf Hlawatschek, Bernd Heinrich Ries, Frank Friedrich Lachmann
  • Patent number: 9382602
    Abstract: The present invention relates to tungsten-rhenium coated compounds, materials formed from tungsten-rhenium coated compounds, and to methods of forming the same. In embodiments, tungsten and rhenium are coated on ultra hard material particles to form coated ultra hard material particles, and the coated ultra hard material particles are sintered at high temperature and high pressure.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 5, 2016
    Assignee: Smith International, Inc.
    Inventors: Yahua Bao, Scott L. Horman
  • Patent number: 9346978
    Abstract: A polishing liquid comprising an abrasive grain, an additive, and water, wherein the abrasive grain includes a hydroxide of a tetravalent metal element, produces absorbance of 1.00 or more for light having a wavelength of 400 nm in an aqueous dispersion having a content of the abrasive grain adjusted to 1.0 mass %, and produces light transmittance of 50%/cm or more for light having a wavelength of 500 nm in an aqueous dispersion having a content of the abrasive grain adjusted to 1.0 mass %, and a difference between a NO3? concentration of an aqueous dispersion having a content of the abrasive grain adjusted to 1.0 mass % and a NO3? concentration after retaining the aqueous dispersion at 60° C. for 72 hours is 200 ppm or less.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: May 24, 2016
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tomohiro Iwano, Hisataka Minami, Toshiaki Akutsu, Koji Fujisaki
  • Patent number: 9334561
    Abstract: The present invention relates to a coated cutting tool comprising a substrate and a multilayered (Ti,Al)N coating. The coating comprises three zones: a first zone (A) closest to the substrate, a second zone (B) adjacent to the first zone and a third outermost zone (C). All three zones each comprises a multilayered aperiodic structure of (Ti,Al)N, where the average composition for each zone is different from each other and where the ratio between the thickness of the zone C and zone B is between 1.3 and 2.2 and where zzone C>Zzone B, where z is the average composition for each zone of the ratio z=Ti/Al. The coating has a low residual stress.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: May 10, 2016
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Bjorn Ericsson
  • Patent number: 9303462
    Abstract: A cutter assembly includes a substrate and at least one island. The substrate includes a surface circumscribed by a peripheral edge, a flank surface extending from the peripheral edge, and at least one pocket with an opening on the surface and spaced apart from the peripheral edge. The at least one pocket extends from the opening towards an interior of the substrate. The at least one island is in the at least one pocket, and the at least one island includes a cutting surface that is exposed by the opening of the at least one pocket.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 5, 2016
    Assignee: Diamond Innovations, Inc.
    Inventors: Yuanbo Lin, Bruce J. Reierson, Joseph M. Rhodes, John W. Lucek
  • Patent number: 9303305
    Abstract: A method for applying a non-magnetic, abrasive, wear-resistant hardfacing material to a surface of a drill string member includes providing a non-magnetic drill string member formed of a non-magnetic material, the drill string member having an outer surface. It also includes providing a non-magnetic hardfacing precursor material comprising a plurality of non-magnetic, sintered carbide pellets and a non-magnetic matrix material; heating a portion of the non-magnetic hardfacing precursor material to a temperature above the melting point of the matrix material to melt the matrix material. It further includes applying the molten non-magnetic matrix material and the plurality of non-magnetic, sintered carbide pellets to the exterior surface of the drill string member; and solidifying the molten non-magnetic matrix material to form a layer of a non-magnetic hardfacing material having a plurality of non-magnetic, sintered carbide pellets dispersed in the hardfacing material.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: April 5, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: James L. Overstreet, Jimmy W. Eason, Travis Puzz
  • Patent number: 9283637
    Abstract: Tools for friction stir welding can be made with fewer process steps, lower cost techniques, and/or lower cost ingredients than other state-of-the-art processes by utilizing improved compositions and processes of fabrication. Furthermore, the tools resulting from the improved compositions and processes of fabrication can exhibit better distribution and homogeneity of chemical constituents, greater strength, and/or increased durability. In one example, a friction stir weld tool includes tungsten and rhenium and is characterized by carbide and oxide dispersoids, by carbide particulates, and by grains that comprise a solid solution of the tungsten and rhenium. The grains do not exceed 10 micrometers in diameter.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: March 15, 2016
    Assignee: Battelle Memorial Institute
    Inventors: Glenn J. Grant, John G. Frye, Jin Yong Kim, Curt A. Lavender, Kenneth Scott Weil
  • Patent number: 9287127
    Abstract: A wafer polishing process includes polishing a central area on the back side of a wafer, polishing a peripheral area on the back side of the wafer, buffing the central area, and buffing the peripheral area. The process can significantly reduce scratch-related wafer breakage, can correct focus spots on wafers, and can replace cleaning processes that use chemical etchants. Polishing and buffing can include polishing and buffing the bevel region. Further improvements include polishing with abrasive pads having a soft backing, polishing or buffing with pads having relatively soft abrasive particles, polishing or buffing with abrasive pads made from abrasive particles that have been sorted and selected for regularity of shape, irrigating the surface being polished or buffed with an aqueous solution that includes a friction-reducing agent, and buffing with abrasive pads having 20 k or finer grit or non-abrasive pads.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: March 15, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shen-Nan Lee, Teng-Chun Tsai, Hsin-Hsien Lu, Chang-Sheng Lin, Kuo-Cheng Lien, Kuo-Yin Lin, Wen-Kuei Liu, Yu-Wei Chou
  • Patent number: 9272392
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (“PCD”) table is infiltrated with a low viscosity cobalt-based alloy infiltrant. In an embodiment, a method includes forming a PCD table in the presence of a metal-solvent catalyst in a first high-pressure/high-temperature (“HPHT”) process. The method includes at least partially leaching the PCD table to remove at least a portion of the metal-solvent catalyst therefrom to form an at least partially leached PCD table. The method includes subjecting the at least partially leached PCD table and a substrate to a second HPHT process effective to at least partially infiltrate the at least partially leached PCD table with a cobalt-based alloy infiltrant having a composition at or near a eutectic composition of the cobalt-based alloy infiltrant.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 1, 2016
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Debkumar Mukhopadhyay, Jair J. Gonzalez
  • Patent number: 9254553
    Abstract: An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is the volume percent of abrasive grains within the total volume of the body and VBM is the volume percent of bond material within the total volume of the body.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: February 9, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay