Metal Or Metal Oxide Patents (Class 51/309)
  • Patent number: 11174538
    Abstract: Disclosed herein, in certain embodiments, are composite materials, methods, tools and abrasive materials comprising a tungsten-based metal composition, a tungsten carbide, and an alloy. In some cases, the composite materials or matrix are resistant to oxidation.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: November 16, 2021
    Assignees: The Regents of the University of California, SuperMetalix, Inc.
    Inventors: Richard B. Kaner, Christopher L. Turner, Madapusi K. Keshavan, Jack Kavanaugh
  • Patent number: 11155901
    Abstract: A method of producing a cubic boron nitride sintered material includes: forming an organic cubic boron nitride powder by attaching an organic substance onto a cubic boron nitride source material powder; preparing a powder mixture including more than or equal to 85 volume % and less than 100 volume % of the organic cubic boron nitride powder and a remainder of a binder source material powder by mixing the organic cubic boron nitride powder and the binder source material powder, the binder source material powder including WC, Co and Al; and obtaining the cubic boron nitride sintered material by sintering the powder mixture.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: October 26, 2021
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD, SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Katsumi Okamura, Yuichiro Watanabe, Akito Ishii, Takashi Harada, Satoru Kukino
  • Patent number: 11136474
    Abstract: A polishing liquid for polishing a surface to be polished containing a tungsten material, the polishing liquid comprising abrasive grains; a polymer having a cationic group at the terminal; an oxidizing agent; a metal oxide-dissolving agent; and water, in which the polymer has a structural unit derived from an unsaturated carboxylic acid, a weight average molecular weight of the polymer is 20000 or less, and a pH is less than 5.0.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: October 5, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventors: Hiroshi Ono, Makoto Mizutani
  • Patent number: 11117239
    Abstract: An abrasive slurry composition for chemical mechanical planarization/polishing (CMP) is provided. The abrasive slurry includes colloidal alumina, a dispersant, and a pH buffer. The colloidal alumina has a particle size of between about 5 nm and about 100 nm. The colloidal alumina may be alpha phase material having a first hardness of about 9 Mohs, or gamma phase material having a second hardness of about 8 Mohs. The abrasive slurry may further include polyacrylic acid (PAA), a down-force enhancer, or a polish-rate inhibitor.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: September 14, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shich-Chang Suen, Kei-Wei Chen, Liang-Guang Chen
  • Patent number: 11104987
    Abstract: A coated cutting tool includes a substrate of cemented carbide, cermet, cBN, ceramics or HSS and a coating of a nitride layer, which is a High Power Impulse Magnetron Sputtering (HIPIMS) deposited layer of a nitride of one or more of Ti, Zr, Hf, V, Ta, Nb, Cr, Si and Al, and a HIPIMS-deposited oxide layer being an (AlaMe1?a)2O3 layer, 0.05?a?1, wherein Me is one or more of Ti, Mg, Ag, Zr, Si, V, Fe, Hf, B and Cr. The oxide layer is situated above the nitride layer. Also, a method is disclosed for producing a coated cutting tool having the nitride layer and oxide layer, the nitride layer and the oxide layer being deposited by a HIPIMS process.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 31, 2021
    Assignee: WALTER AG
    Inventors: Veit Schier, Ulrich Albers, Dominic Diechle
  • Patent number: 11084103
    Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including an alternating laminate structure in which two or more compound layers of each of two or three or more kinds, each kind having a different composition, are laminated in an alternating manner, wherein: the alternating laminate structure is constituted by: a compound layer containing a compound having a composition represented by formula (1) below: (TixMySiz)N??(1) [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W and Al, x denotes an atomic ratio of Ti based on a total of Ti, an element denoted by M and Si, y denotes an atomic ratio of the element denoted by M based on a total of Ti, the element denoted by M and Si, z denotes an atomic ratio of Si based on a total of Ti, the element denoted by M and Si, x satisfies 0.20?x?0.50, y satisfies 0.20?y?0.50, z satisfies 0.03?z?0.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: August 10, 2021
    Assignee: TUNGALOY CORPORATION
    Inventors: Yusuke Hirano, Shigeki Tanaka
  • Patent number: 11041102
    Abstract: An alumina sintered body including an inner layer in which alumina crystal grains contained have an average aspect ratio of 1.0 to 2.0 and an outer layer which covers at least a part of the inner layer from outside and in which alumina crystal grains contained have an average aspect ratio of more than 2.0, the alumina sintered body being free from silicon except unavoidable impurities.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 22, 2021
    Assignee: SHOWA DENKO K.K.
    Inventor: So Miyaishi
  • Patent number: 11027397
    Abstract: The present disclosure relates generally to coated abrasive articles that include a tribological performance enhancing composition in a make coat, a size coat, a supersize coat, or combinations thereof, as well as methods of making coated abrasive articles. The present disclosure also relates to coated abrasive articles including a supersize coating comprising a sulfide scavenging composition and/or a crosslinked zinc acrylic binder, as well as methods for making and using such abrasive articles. The present disclosure also relates generally to abrasive articles that include aggregates having an anti-wear composition or grinding aid disposed on or within the aggregates.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: June 8, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Charles G. Herbert, William C. Rice, Jianna Wang, Robin Barabasz, Shih-Chieh Kung
  • Patent number: 10994341
    Abstract: A surface-coated cutting tool includes a base material and a coating film provided on a surface of the base material, wherein the coating film includes a first alternating layer provided on the base material and a second alternating layer provided on the first alternating layer, the first alternating layer includes A and B layers, the second alternating layer includes C and D layers, each of one or plurality of the A layers is composed of a nitride or carbonitride of AlaCrbM1(1-a-b), each of one or plurality of the B layers is composed of a nitride or carbonitride of AlcTidM2(1-c-d), each of one or plurality of the C layers is composed of a nitride or carbonitride of TieSifM3(1-e-f), and each of one or plurality of the D layers is composed of a nitride or carbonitride of TigSihM4(1-g-h).
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: May 4, 2021
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Hiroki Takeshita, Makoto Setoyama, Haruyo Fukui
  • Patent number: 10968991
    Abstract: A cam follower is provided. The cam follower includes a polycrystalline diamond element, including an engagement surface. The engagement surface of the polycrystalline diamond element is positioned on the cam follower for sliding engagement with an opposing engagement surface of a cam. The cam includes at least some of a diamond reactive material.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 6, 2021
    Assignee: XR Downhole, LLC
    Inventors: David P. Miess, Gregory Prevost, Michael Williams
  • Patent number: 10954820
    Abstract: There is provided a non-contacting seal assembly for a gas turbine engine, having a housing that houses a sealing ring; and a counter component cooperating with the sealing ring. The sealing ring and the counter component are rotatable relative to each other about a central axis and define sealing faces circumferentially extending around the central axis. The sealing faces face each other and are spaced apart from each other by a controlled gap. At least one of the sealing faces is coated with a non-abradable material. A method of operating a non-contacting seal assembly is also provided.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 23, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Alexander Smith
  • Patent number: 10946454
    Abstract: A coated cutting tool comprising a substrate and a coating layer provided on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and a texture coefficient TC (0,0,12) of a (0,0,12) plane of the ?-type aluminum oxide layer is from 4.0 or more to 8.4 or less; and a texture coefficient TC (1,0,10) of a (1,0,10) plane thereof is from 0.4 or more to 3.0 or less.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: March 16, 2021
    Assignee: TUNGALOY CORPORATION
    Inventors: Hiroyuki Satoh, Yusuke Hirano
  • Patent number: 10870154
    Abstract: A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of less than 20 W·m?1·K?1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a coarse grain size represented by a grain size number of 5 or less defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having high fracture resistance in addition to high wear resistance, as well as the cutting tool including the sintered body are provided.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: December 22, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kentaro Chihara, Satoru Kukino
  • Patent number: 10844481
    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: April 17, 2019
    Date of Patent: November 24, 2020
    Assignee: KENNAMETAL INC.
    Inventors: Rodrigo Alejandro Cooper, Karl Heinz Wendt, Peter Leicht, Bhaskar Alok, Yixiong Liu
  • Patent number: 10786875
    Abstract: A method for applying an abrasive comprises: applying, to a substrate, the integral combination of: a self-braze material; and an abrasive embedded in the self-braze material; and securing the combination to the substrate.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: September 29, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Eric W. Stratton, Michael J. Minor
  • Patent number: 10710157
    Abstract: A molding material is provided which, despite containing a ceramic, enables efficient molding for producing high-density molded articles. The present invention provides a molding material to be used in powder laminate molding. This molding material contains a first powder which contains a ceramic, and a second powder which contains a metal. Further the first powder and the second powder are bonded by sintering to configure granulated sintered particles. The granule strength of the granulated sintered particles is greater than 1 MPa and less than 10,000 MPa.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: July 14, 2020
    Assignee: FUJIMI INCORPORATED
    Inventors: Hiroyuki Ibe, Junya Yamada
  • Patent number: 10710169
    Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer comprising a first laminate structure and a second laminate structure, wherein: the first laminate structure has a laminate structure in which predetermined compound layers of two kinds, each having a different composition, are laminated in an alternating manner; the first laminate structure satisfies a predetermined condition; the second laminate structure has a laminate structure in which a first compound layer comprising a predetermined oxide and/or oxynitride and a second compound layer having a predetermined composition are laminated in an alternating manner; and an average thickness of each compound layer which constitutes the first laminate structure, an average thickness of each compound layer which constitutes the second laminate structure, and a thickness of the coating layer in its entirety each fall within a predetermined range.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 14, 2020
    Assignee: TUNGALOY CORPORATION
    Inventor: Shigeki Tanaka
  • Patent number: 10695841
    Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including at least one ?-type aluminum oxide layer, wherein: in the ?-type aluminum oxide layer, a texture coefficient TC (0,0,12) of a (0,0,12) plane falls within a predetermined range; a residual stress value in a (1,1,6) plane of the ?-type aluminum oxide layer falls, at least in part thereof, within a predetermined range; and a residual stress value in a (4,0,10) plane of the ?-type aluminum oxide layer falls, at least in part thereof, within a predetermined range.
    Type: Grant
    Filed: February 17, 2018
    Date of Patent: June 30, 2020
    Assignee: TUNGALOY CORPORATION
    Inventor: Keiya Kawahara
  • Patent number: 10655038
    Abstract: A method of making magnetizable abrasive particles includes providing a slurry layer disposed on a substrate. The slurry layer has an exposed surface and comprises magnetic particles, a binder precursor, and a liquid vehicle. Abrasive particles are electrostatically contacted with the slurry layer such that they are aligned substantially oriented perpendicular to the surface of the substrate, and are partially embedded within the slurry layer. The liquid vehicle is at least partially removed from the slurry layer and the binder precursor is converted into a binder to provide a magnetizable layer comprising the magnetic particles partially embedded in the binder. The magnetizable abrasive particles are separated from the releasable substrate. Each magnetizable abrasive particle respectively comprises a portion of the magnetizable layer disposed on a portion of an abrasive particle.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 19, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Jaime A. Martinez, Thomas J. Nelson, Mark A. Lukowski
  • Patent number: 10610999
    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: October 9, 2015
    Date of Patent: April 7, 2020
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Daren Nathaniel Heaton, Jeremy Brett Lynn, Mark Pehrson Chapman, Oakley D. Bond
  • Patent number: 10589401
    Abstract: A sintered vitrified superfinishing grindstone is provided which is a sintered product which is obtained by compression molding of a mixed powder of: a sinterable vitrified binder composed of a powder of a borosilicate glass composition; hard abrasive grains; and soft abrasive grains; and which includes bonded portions formed by necking due to heat compression, between particles of the powder of the borosilicate glass composition which are in contact with each other; and wherein the sinterable vitrified binder contains from 94 to 100% by mass of a powder composed of a low-melting-point borosilicate glass composition containing from 35 to 55% by mole of SiO2; from 3 to 5% by mole of Al2O3; from 10 to 35% by mole of B2O3; and from 25 to 30% by mole of R2O+RO.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 17, 2020
    Assignee: MIZUHO CO., LTD.
    Inventors: Noboru Matsumori, Toshiyuki Nabemoto, Toshio Nakazawa
  • Patent number: 10570667
    Abstract: A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: February 25, 2020
    Assignee: NATIONAL OILWELL DHT, L.P.
    Inventors: Deepthi Raj Setlur, Michael D. Hughes, Mark Jonathan Francis, Harold A. Sreshta, Guodong Zhan, Russell C. Gilleylen, JiinJen Albert Sue
  • Patent number: 10570314
    Abstract: The present invention relates to a polishing agent including: metal oxide particles; an organic acid having a monodentate ligand; a nonionic polymer; and water, in which the polishing agent has a pH of from 3.0 to 7.0, and the nonionic polymer includes at least one selected from the group consisting of polyglycerin, polyoxyethylene polyglyceryl ether and polyoxypropylene polyglyceryl ether.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: February 25, 2020
    Assignee: AGC Inc.
    Inventor: Genki Kobayashi
  • Patent number: 10563106
    Abstract: A method of forming a shaped abrasive particle having a body formed by an additive manufacturing process.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: February 18, 2020
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Adam J. Stevenson, Amin M'Barki, David F. Louapre, Doruk O. Yener, Jennifer H. Czerepinski, Nabil Nahas
  • Patent number: 10557059
    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 and less than 1.50 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 absorbance of 0.035 or more for light having a wavelength of 400 nm in a liquid phase obtained when centrifuging an aqueous dispersion having a content of the abrasive grain adjusted to 1.0 mass % for 50 minutes at a centrifugal acceleration of 1.59×105 G.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 11, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tomohiro Iwano, Hisataka Minami, Toshiaki Akutsu, Koji Fujisaki
  • Patent number: 10500697
    Abstract: An abrasive article including a body including a bond material having an inorganic material including a ceramic, abrasive agglomerates including silicon carbide contained within the bond material, and a permeability of at least 60.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: December 10, 2019
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Nilanjan Sarangi, Sandhya Jayaraman Rukmani, Stephen E. Fox, Russell L. Krause
  • Patent number: 10465281
    Abstract: The present invention relates to a high resolution additive manufacturing method, including: creating a rigid shell of a stable material on all surfaces except for a sprue of a three dimensional (3D) polymer part using a chemical vapor deposition (CVD) process which includes: depositing the stable material at a process temperature of 100° C. or less, and operating at, or near, atmospheric pressure; and removing the 3D polymer part by accessing the inside of the rigid shell through the sprue to allow dissolution of the 3D polymer part, thereby leaving a replicated rigid shell of the stable material.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: November 5, 2019
    Assignee: U.S.A. as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Vincent T. Bly
  • Patent number: 10414021
    Abstract: The present invention is objected to polish the surface of the object material with a high quality at a high polishing rate. The object surface is polished using a wet polishing method. Slurry is produced by scattering abrasive particles into pure water. In the abrasive particle, where components which has a mechanochemical effect and which reacts to the friction heat generated in polishing the object material are joined with each other and integrated to a particle. There, respective component is joined with each other using a mechanical alloying process, while maintaining the inherent material properties. When the slurry is used in a lapping process of sapphire, silicon carbide, gallium nitride and the like, the polishing process can be substantially shortened and the processing cost is drastically reduced. Further, it secures a high quality of the polishing surface. The abrasive particle can be used repeatedly in the polishing process.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: September 17, 2019
    Assignee: ASAHI KASEI KOGYO CO., LTD.
    Inventors: Shunichi Fujimoto, Tetsuji Yamashita
  • Patent number: 10406501
    Abstract: The present disclosure relates to systems and methods for electrochemical metal or other positive ion removal from polycrystalline diamond (PCD), such as PCD used in earth-boring drill bits. PCD used in the systems and methods described herein has an electrical conductivity-enhanced region.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: September 10, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Qi Liang
  • Patent number: 10399206
    Abstract: PDCs, methods of fabricating the PDCs, and methods of using the PDCs are disclosed herein. The PDCs include a PCD table bonded to a substrate. The PCD table includes an upper surface having a plurality of recessed features formed therein. The plurality of recessed features are configured to attract at least some cracks that form in the PCD table. As such, the plurality of recessed features limit or prevent crack propagation into other portions of the PCD table and limit a volume of the PCD table that spalls. Methods of fabricating the PDCs include partially leaching the PCD table and, after leaching the PCD table, forming the plurality of recessed features in the upper surface thereof. Method of using the PDCs include rotating a PDC that has spalled relative to a rotary drill bit such that a portion of the upper surface of the PDC that has not spalled forms a cutting surface thereof.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: September 3, 2019
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Daniel Call Mortensen, Lindsay Sue Patton, Trevor Allen Olsen, Casey Wade Swan, Shawn Casey Scott, Matthew Kimball Baker, Anne-Grethe Slotnaes, Kenneth E. Bertagnolli, Jiang Qian, Jason Lott, Joshua Adam Hawks
  • 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