With Inorganic Material Patents (Class 51/307)
  • Patent number: 11498873
    Abstract: A polycrystalline super hard construction comprises a body of polycrystalline super hard material and a substrate bonded to the body along an interface. The substrate a first end surface forming the interface, the first end surface comprising a projection extending from the body of the substrate into the body of super hard material towards the cutting face, the body of polycrystalline material extending around the projection. The body of polycrystalline material comprises a first region more thermally stable than a second region, the first region comprising an annular portion located around the projection, the second region extending between and bonding the first region to the substrate. The first region has a thickness from the cutting face along the peripheral side edge to the interface of at least around 3 mm and a portion of the projection has a thickness measured in a plane extending along the longitudinal axis of at least around 3 mm.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: November 15, 2022
    Assignee: ELEMENT SIX ABRASIVES HOLDINGS LIMITED
    Inventors: Maweja Kasonde, Valentine Kanyanta, Teresa Rodriguez Suarez
  • Patent number: 11458593
    Abstract: In a high-porosity CBN vitrified grinding stone having a homogeneous structure, a CBN abrasive grain, a large-diameter inorganic hollow filler having an average particle diameter in a range from a grain size one class coarser to a grain size one class finer with respect to a class indicating a grain size of the CBN abrasive grain, and a small-diameter inorganic hollow filler having an average particle diameter of ? to ½ of that of the CBN abrasive grain are bonded by an inorganic bonding agent.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: October 4, 2022
    Assignee: NORITAKE CO., LIMITED
    Inventors: Ryoma Ito, Takeshi Mishima, Kouichi Yoshimura
  • Patent number: 11453589
    Abstract: A method of producing a boron nitride polycrystal includes: a first step of obtaining a thermally treated powder by thermally treating a powder of a high pressure phase boron nitride at more than or equal to 1300° C.; and a second step of obtaining a boron nitride polycrystal by sintering the thermally treated powder under a condition of 8 to 20 GPa and 1200 to 2300° C.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 27, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuh Ishida, Hitoshi Sumiya
  • Patent number: 11447872
    Abstract: A hard coating includes a three kinds of layers that are alternately laminated. The three kinds of layers consist of a single composition layer and two kinds of nanolayer-alternated layers. The single composition layer is constituted by one of an A composition (nitride of AlCr?), a B composition (nitride of AlTiCr?) and a C composition (nitride of AlCr(SiC)?). The two kinds of nanolayer-alternated layers include nanolayers which are alternately laminated and which are constituted by two of three combinations consisting of a combination of the A composition and B composition, a combination of the A composition and C composition and a combination of the B composition and C composition. The single composition layer has a thickness of 0.5-1000 nm. Each of the nanolayers constituting the two kinds of nanolayer-alternated layers has a thickness of 0.5-500 nm, and each of the two kinds of nanolayer-alternated layers has a thickness of 1-1000 nm.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: September 20, 2022
    Assignee: OSG CORPORATION
    Inventors: Mei Wang, Hiroyuki Hanyu
  • Patent number: 11427930
    Abstract: In a diamond polycrystal, a value of a ratio (d?/d) of d? to d is less than or equal to 0.98 in a Vickers hardness test performed under a condition defined in JIS Z 2244:2009, where the d represents a length of a diagonal line of a first Vickers indentation formed in a surface of the diamond polycrystal when a Vickers indenter with a test load of 4.9 N is pressed onto the surface of the diamond polycrystal, and the d? represents a length of a diagonal line of a second Vickers indentation remaining in the surface of the diamond polycrystal after releasing the test load.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 30, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hitoshi Sumiya, Katsuko Yamamoto
  • Patent number: 11421341
    Abstract: In a diamond polycrystal, a value of a ratio (a?/a) of a? to a is less than or equal to 0.99 in a Knoop hardness test performed under a condition defined in JIS Z 2251:2009, where the a represents a length of a longer diagonal line of a first Knoop indentation formed in a surface of the diamond polycrystal when a Knoop indenter with a test load of 4.9 N is pressed onto the surface of the diamond polycrystal, and the a? represents a length of a longer diagonal line of a second Knoop indentation remaining in the surface of the diamond polycrystal after releasing the test load.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 23, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hitoshi Sumiya, Katsuko Yamamoto
  • Patent number: 11407048
    Abstract: A method for producing a workpiece having a toothing or profiling, including the steps: a) soft machining the workpiece to produce the toothing or profiling; b) hardening the toothing or profiling; c) hard fine machining the toothing or profiling with a first tool that is a grinding worm, a grinding wheel or a honing wheel, wherein the first tool has a base body with a first elastic modulus; d) reinforcement of at least a section of the workpiece by shot blasting; and, following step d), e) repeated hard fine machining of the toothing or profiling with a second tool that is a grinding worm, a grinding wheel, a set of grinding wheels or a honing wheel. The second tool has a plastic or rubber base body with a second elastic modulus which is at most 33% of the first elastic modulus.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 9, 2022
    Assignee: KAPP NILES GMBH & CO. KG
    Inventor: Sergiy Grinko
  • Patent number: 11400559
    Abstract: The polishing pad according to an embodiment adjusts the content of elements present in the polishing layer, thereby controlling the bonding strength between the polishing pad and the polishing particles and enhancing the bonding strength between the polishing particles and the semiconductor substrate (or wafer), resulting in an increase in the polishing rate. It is possible to enhance not only the mechanical properties of the polishing pad such as hardness, tensile strength, elongation, and modulus, but also the polishing rate for both a tungsten layer or an oxide layer. Accordingly, it is possible to efficiently fabricate a semiconductor device of excellent quality using the polishing pad.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 2, 2022
    Assignee: SKC solmics CO., LTD.
    Inventors: Eun Sun Joeng, Jong Wook Yun, Sunghoon Yun, Jang Won Seo
  • Patent number: 11377716
    Abstract: Provided is a cermet having improved toughness, the cermet including particles each of which has a complete solid-solution carbide of two or more metals selected, including titanium, from among Group IVa, Va, and VIa metals in the periodic table and has a core/rim structure composed of a core region and a rim region, and a binder composed of a metal, wherein the composition of the Group VIa metal in the core region is lower than the composition in the rim region, and the lattice constant in the rim region is larger than that in the core region.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: July 5, 2022
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Shinhoo Kang, Heung Nam Han, Choongkwon Park, Nojun Kwak
  • Patent number: 11365472
    Abstract: A coated cutting tool includes a body and a PVD coating disposed on the body. The body being cemented carbide, cermet, ceramics, polycrystalline diamond, polycrystalline cubic boron nitride based materials or a high speed steel. The coating includes a first layer of (Ti1-xAlx)N wherein 0.3?x?0.7, and a second layer of (Ti1-p-qAlp Siq)N with 0.15?p?0.45, and 0.05?q?0.20, wherein the second layer is deposited outside the first layer as seen in a direction from the body.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 21, 2022
    Assignee: Seco Tools AB
    Inventors: Gied Rutten, Lennart Karlsson
  • Patent number: 11278967
    Abstract: A surface-coated cutting tool has a hard coating layer including an upper layer ?, an adhesion layer ?, and a lower layer ?. The upper layer ? is formed of an ?-Al2O3 layer formed under low temperature conditions. The adhesion layer ? includes a TiCN layer having a thickness of 0.5 ?m or more in an outermost layer and contains 0.5 to 3 ?m to a maximum depth of 0.5 ?m toward the inside in a layer thickness direction of the TiCN layer from the interface between the TiCN layer and the upper layer ?. The lower layer ? is formed of (Ti1-XAlX)(CYN1-Y) of a single phase of a NaCl type face-centered cubic structure, in which an average content ratio Xavg of Al and an average content ratio Yavg of C in this composition formula satisfy 0.60?Xavg?0.95 and 0?Yavg?0.005.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 22, 2022
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kousuke Yanagisawa, Sho Tatsuoka, Kenichi Sato, Shin Nishida
  • Patent number: 11214711
    Abstract: The present invention is a polishing composition, containing zirconium oxide as abrasive grains, the polishing composition having pH of 11.0 or more and less than 12.5, the zirconium oxide having element concentrations of sodium, magnesium, aluminum, potassium, calcium, titanium, chromium, iron, manganese, nickel, copper, zinc, lead, and cobalt of less than 1 ppm each. There can be provided a polishing composition that enables semiconductor substrates having high flatness not only in the inner circumferential portion but also in the outer circumferential portion with little contamination due to metal impurities to be obtained at high productivity.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: January 4, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Yoshihiro Nojima, Mitsuhito Takahashi
  • Patent number: 11167357
    Abstract: A surface-coated cutting tool includes a substrate and a coating film. The coating film includes an alternate layer. The alternate layer includes a first layer having a first composition and a second layer having a second composition. The alternate layer is formed by alternately stacking at least one first layer and at least one second layer. The first layer and the second layer each have a thickness not smaller than 2 nm and not greater than 100 nm. The first composition is expressed as TiaAlbSicN (0.25?a?0.45, 0.55?b?0.75, 0?c?0.1, a+b+c=1). The second composition is expressed as TidAleSifN (0.35?d?0.55, 0.45?e?0.65, 0?f?0.1, d+e+f=1). The first composition and the second composition satisfy a condition of 0.05?d?a?0.2 and 0.05?b?e?0.2.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 9, 2021
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Shuhei Misumi, Haruyo Fukui, Shinya Imamura, Kazuhiro Hirose, Hiroki Takeshita
  • Patent number: 11130181
    Abstract: A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard particle having a sodium chloride type crystal structure, and including a first unit phase in a form of a plurality of lumps and a second unit phase interposed between the lumps of the first unit phase, the first unit phase being composed of a nitride or carbonitride of AlxTi1-x, the first unit phase having an atomic ratio x of Al of 0.7 or more and 0.96 or less, the second unit phase being composed of a nitride or carbonitride of AlyTi1-y, the second unit phase having an atomic ratio y of Al exceeding 0.5 and less than 0.7.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 28, 2021
    Assignees: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Anongsack Paseuth, Yasuki Kido, Shinya Imamura, Koji Kuramochi
  • Patent number: 11103930
    Abstract: A cutting tool includes: a substrate including a rake face; and a coating film that coats the rake face, wherein the coating film includes an ?-Al2O3 layer disposed on the substrate, the ?-Al2O3 layer includes crystal grains of ?-Al2O3, an area ratio of crystal grains oriented in (001) among the crystal grains is 50% to 90% in the ?-Al2O3 layer at the rake face, a film residual stress AA determined based on a crystal plane interval of a (001) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa, and a film residual stress BA determined based on a crystal plane interval of a (110) plane of the ?-Al2O3 layer at the rake face is more than or equal to ?1000 MPa and less than 0 MPa, and a relational expression of |AA|?|BA| is satisfied.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: August 31, 2021
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Susumu Okuno, Shinya Imamura, Satoshi Ono, Anongsack Paseuth
  • Patent number: 11104980
    Abstract: The invention relates to a method for producing a carbide with a toughness-increasing structure, comprising the following steps: providing a hard material powder, wherein the average BET particle size of the hard material powder is less than 1.0 mm; mixing the hard material powder with a binder powder; shaping the mixture made of hard material powder and binder powder to form a green body; and sintering the green body. The invention also relates to a carbide with a toughness-increasing structure comprising a phase made of hard material particles and a phase made of binder metal heterogeneously distributed in the carbide, which is present in the form of binder islands, wherein the carbide with a toughness-increasing structure produced after the sintering has a phase made of hard material particles with an average particle size in the region between 1 nm and 1000 nm, and the binder islands have an average size of 0.1 ?m to 10.0 ?m and an average distance between the binder islands of 1.0 ?m to 7.0 ?m.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: August 31, 2021
    Assignee: H. C. STARCK TUNGSTEN GMBH
    Inventors: Tino Saeuberlich, Johannes Poetschke, Volkmar Richter
  • Patent number: 11091678
    Abstract: A fixed abrasive article including a blend of abrasive particles having a first type of shaped abrasive particle comprising a first height (h1), a second type of shaped abrasive particle comprising a second height (h2) less than the first height, where the blend of abrasive particles includes a first content of the first type of shaped abrasive particles and a second content of the second type of shaped abrasive particle, and the first content is different as compared to the second content.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 17, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventor: Sujatha Iyengar
  • Patent number: 11072008
    Abstract: A wear-resistant tool includes composite polycrystalline diamond as a core, the composite polycrystalline diamond being composed of polycrystalline diamond in which particulate diamond is directly bonded and non diamond carbon. The polycrystalline diamond in the composite polycrystalline diamond is three-dimensionally continuous in composite polycrystal and primary particles have an average particle size from 10 to 500 nm.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: July 27, 2021
    Assignees: Sumitomo Electric Industries, Ltd., A.L.M.T. Corp.
    Inventors: Hitoshi Sumiya, Takeshi Sato, Makoto Yukawa, Bunya Suemitsu
  • Patent number: 11053595
    Abstract: Compositions and methods for etching cobalt chromium alloys are disclosed. The compositions generally include at least two mineral acids, certain component metals of the alloy to be etched, and optionally iron (Fe). For example, when etching a cobalt chromium molybdenum alloy, the metals may include chromium (Cr), molybdenum (Mo), and optionally, cobalt (Co). The at least two mineral acids may include hydrochloric acid (HCl), nitric acid (HNO3), and hydrofluoric acid (HF). The methods provide for etching an entire surface of a substrate or etching a surface of a substrate in a pattern using selective coating patterns and/or coating removal. Thus, unlimited patterns, as well as etch depths and variations in etch depths are achievable using the compositions and methods disclosed.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: July 6, 2021
    Assignee: Tech Met, Inc.
    Inventors: Michael Vidra, Daniel Jon Schutzer
  • Patent number: 11046834
    Abstract: To provide a surface-modified nanodiamond including an N-substituted or unsubstituted amino group having excellent reactivity with other compounds; and having excellent dispersibility in dispersion media and resins. The surface-modified nanodiamond according to the present invention is a surface-modified nanodiamond including a surface-modifying group on a surface of a nanodiamond particle, wherein the surface-modifying group includes a group represented by Formula (1) below, wherein reference signs in Formula (1) below are as described in the present specification.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: June 29, 2021
    Assignee: DAICEL CORPORATION
    Inventor: Kouichi Umemoto
  • Patent number: 11041096
    Abstract: The present invention relates to a polishing agent including: a water-soluble polymer including a copolymer of a monomer (A) which includes at least one member selected from the group consisting of an unsaturated dicarboxylic acid, a derivative thereof, and salts of the unsaturated dicarboxylic acid and the derivative thereof and a monomer (B) other than the monomer (A), comprising an ethylenic double bond and no acidic group; a cerium oxide particle; and water, in which the polishing agent has a pH of 4 to 9.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: June 22, 2021
    Assignee: AGC INC.
    Inventor: Toshihiko Otsuki
  • Patent number: 11020804
    Abstract: A surface-coated cutting tool includes a substrate and a coating formed on a surface of the substrate, the coating including one or two or more layers, at least one of the layers being an Al-rich layer including hard particles, the hard particle having a sodium chloride type crystal structure, and including a first unit phase in a form of a plurality of lumps and a second unit phase interposed between the lumps of the first unit phase, the first unit phase being composed of a nitride or carbonitride of AlxTi1-x, the first unit phase having an atomic ratio x of Al of 0.7 or more and 0.96 or less, the second unit phase being composed of a nitride or carbonitride of AlyTi1-y, the second unit phase having an atomic ratio y of Al exceeding 0.5 and less than 0.7.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: June 1, 2021
    Assignees: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
    Inventors: Anongsack Paseuth, Yasuki Kido, Shinya Imamura, Koji Kuramochi
  • Patent number: 11007578
    Abstract: A surface-coated cutting tool comprises a hard coating layer that includes a TiAlN layer and is provided on a surface of a cutting tool body. In case the composition of the TiAlN layer is expressed by a formula: (TixAl1-x)N, 0.10?x?0.35 (here, x is in atomic ratio) is satisfied. In the TiAlN layer, a high Ti band-like region is present in a direction at 30 degrees or less with respect to a line normal to the surface of the cutting tool body. An average composition X of the Ti component in the high Ti band-like region satisfies (x+0.01)?X?(x+0.05), an average width W of the high Ti band-like region is 30 to 500 nm, and an average area ratio St of the high Ti band-like region is 3 to 50 area %.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: May 18, 2021
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Shun Sato, Tsuyoshi Ogami, Kenji Yamaguchi
  • Patent number: 10974324
    Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises a lower layer including at least one Ti compound layer containing a specific Ti compound, an intermediate layer including an ?-type Al2O3 layer containing ?-type Al2O3, and an upper layer including a TiCN layer containing TiCN; the respective layers are laminated in this order from the substrate side toward a surface side of the coating layer; an average thickness of the coating layer is from 5.0 ?m or more to 30.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 13, 2021
    Assignee: TUNGALOY CORPORATION
    Inventors: Kinya Takahashi, Naoyuki Fukushima
  • Patent number: 10953473
    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. The crystal grain has a layered structure in which a first layer composed of nitride or carbonitride of AlxTi1-x and a second layer composed of nitride or carbonitride of AlyTi1-y are alternately stacked. The total thickness of the first layer and the second layer adjacent to each other is 3 nm or more and 40 nm or less. An angle of intersection between a 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, an area ratio of the crystal grains having the angle of intersection of 0 degree or more to less than 10 degrees is 40% or more.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: March 23, 2021
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Anongsack Paseuth, Hideaki Kanaoka, Shinya Imamura, Satoshi Ono
  • Patent number: 10864614
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a substrate and a polycrystalline diamond (“PCD”) table mounted to the substrate. The PCD table includes an upper surface and one or more recesses extending inwardly from the upper surface of the PCD table. The one or more recesses may help prevent, stop, or limit crack propagation and may redistribute, breakup, or relieve stresses in the PCD table. In some embodiments, the one or more recesses exhibit, in plain view, a generally rectangular geometry, a generally circular geometry, or a generally triangular geometry. In some embodiments, the PCD table includes one or more channels that extend from a vertex of the one or more recesses. In some embodiments, the one or more channels and the one or more recesses may be at least partially filled with a sacrificial material. Methods for forming such PDCs are also discussed.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: December 15, 2020
    Assignee: US SYNTHETIC CORPORATION
    Inventor: David P. Miess
  • Patent number: 10857598
    Abstract: A coated cutting tool, comprising: a substrate; and a coating layer formed on the substrate, wherein the coating layer includes a lower part layer and an upper part layer formed on the lower part layer, the lower part layer has an average thickness of 2.0 ?m or more and 15.0 ?m or less, and is formed of a Ti oxycarbonitride layer including a compound having a composition represented by formula (1) below: Ti(C1-x-yNxOy)??(1) (where, x denotes an atomic ratio of an N element based on a total of a C element, the N element, and an O element, y denotes an atomic ratio of the O element based on a total of the C element, the N element, and the O element, and 0.35?x?0.60 and 0.01?y?0.10 are satisfied), a FWHM of a rocking curve of a plane (4,2,2) of the lower part layer, which is obtained through X-ray diffraction, is 20° or less, the upper part layer is formed of an ?-aluminum oxide layer having an average thickness of 1.0 ?m or more and 15.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 8, 2020
    Assignee: TUNGALOY CORPORATION
    Inventors: Hiroyuki Satoh, Kinya Takahashi
  • Patent number: 10837104
    Abstract: A cutting tool in an embodiment includes a base member composed of cemented carbide and a coating layer located on a surface of the base member. The coating layer includes a first layer which is in contact with the base member and contains Ti(CxN1-x) (0?x?1). A KAM average value of WC particles in a region extending to a depth of 5 ?m from the surface of the base member is 1° or less, which is measured by electron backscatter diffraction (EBSD) method using a scanning electron microscope with an electron backscatter diffraction imaging system.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: November 17, 2020
    Assignee: KYOCERA Corporation
    Inventor: Hayato Kubo
  • Patent number: 10829999
    Abstract: Polycrystalline diamond compacts having interstitial diamonds and methods of forming polycrystalline diamond compact shaving interstitial diamonds with a quench cycle are described herein. In one embodiment, a polycrystalline diamond compact includes a substrate and a polycrystalline diamond body attached to the substrate. The polycrystalline diamond body includes a plurality of inter-bonded diamond grains that are attached to one another in an interconnected network of diamond grains and interstitial pockets between the inter-bonded diamond grains, and a plurality of interstitial diamond grains that are positioned in the interstitial pockets. Each of the plurality of interstitial diamond grains are attached to a single diamond grain of the interconnected network of diamond grains or other interstitial diamond grains.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: November 10, 2020
    Assignees: DIAMOND INNOVATIONS, INC., BAKER HUGHES, a GE Company LLC
    Inventors: Andrew Gledhill, Danny Eugene Scott, Marc William Bird
  • Patent number: 10829690
    Abstract: Disclosed is a slurry composition for chemical mechanical polishing (CMP) includes, as polishing particles, a complex compound of both fullerenol and alkylammonium hydroxide. The slurry composition, which exhibits excellent polishing properties, may be prepared at low cost in large quantities. Also disclosed is a method of preparing the slurry composition comprising obtaining a mixture of a fullerenol complex compound and unreacted hydrogen peroxide by reacting alkylammonium hydroxide, hydrogen peroxide, and fullerene, removing the unreacted hydrogen peroxide by adding hydrogen peroxide decomposition catalyst particles to the mixture, separating the hydrogen peroxide decomposition catalyst particles from the mixture by filtration, and adding a polishing additive to the mixture.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: November 10, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Bo-yun Kim, Kenji Takai, Do-yoon Kim, Sang-kyun Kim, Bo-un Yoon
  • Patent number: 10822277
    Abstract: The present invention relates to an oxidation-induced highly-functional self-healing ceramic composition, a method for producing the ceramic composition, a use of the ceramic composition and a method for achieving the enhancement of the functionality of the ceramic composition, by focusing on a repairing stage and a remodeling state in a self-healing process and by carrying out elemental and structural designing of an oxidation-induced self-healing ceramic composition for the purpose of speeding up these stages.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: November 3, 2020
    Assignee: National Institute for Materials Science
    Inventors: Toshio Osada, Kiichi Kamoda, Toru Hara, Masanori Mitome, Taichi Abe, Takahito Ohmura, Wataru Nakao
  • Patent number: 10767258
    Abstract: A titanium aluminum nitride coating having a columnar crystal structure, which is formed on a substrate, comprises high-Al TiAlN having an fcc structure, which has a composition represented by (Tix1, Aly1)N, wherein x1 and y1 are numbers meeting x1=0.005-0.1, and y1=0.995-0.9 by atomic ratio, and network-like, high-Ti TiAlN having an fcc structure, which has a composition represented by (Tix2, Aly2)N, wherein x2 and y2 are numbers meeting x2=0.5-0.9, and y2=0.5-0.1 by atomic ratio; the high-Al TiAlN being surrounded by the network-like, high-Ti TiAlN.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: September 8, 2020
    Assignee: MITSUBISHI HITACHI TOOL ENGINEERING, LTD.
    Inventors: Yuuzoh Fukunaga, Masayuki Imai
  • Patent number: 10751805
    Abstract: A coated cutting tool is provided which has improved wear resistance and fracture resistance and which accordingly has a long tool life. A coated cutting tool comprising a substrate and a coating layer formed on the substrate, wherein: the coating layer comprises at least one composite compound layer containing a compound having a composition represented by (Ti1-xMox)N (wherein x denotes an atomic ratio of the Mo element based on a total of the Ti element and the Mo element and satisfies 0.01?x?0.30); a ratio I(200)/I(111) between a peak intensity I(111) for a (111) plane of cubic crystals of the composite compound layer and a peak intensity I(200) for a (200) plane of the cubic crystals in an X-ray diffraction analysis satisfies 1<I(200)/I(111)?20; and, as to particles which constitute the composite compound layer, an area ratio of particles each having an aspect ratio of 2 or more is 50% or higher.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: August 25, 2020
    Assignee: TUNGALOY CORPORATION
    Inventor: Hirosato Nishizawa
  • Patent number: 10752807
    Abstract: A polishing liquid comprises: abrasive grains; a compound having an aromatic heterocycle; an additive (excluding the compound having an aromatic heterocycle); and water, wherein: the abrasive grains include a hydroxide of a tetravalent metal element; the aromatic heterocycle has an endocyclic nitrogen atom not bound to a hydrogen atom; and a charge of the endocyclic nitrogen atom obtained by using the Merz-Kollman method is ?0.45 or less.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: August 25, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD
    Inventors: Hisataka Minami, Tomohiro Iwano, Keita Arakawa, Takahiro Hidaka
  • Patent number: 10737331
    Abstract: Provided is a coated cutting tool, comprising: a substrate; and a coating layer formed on at least part of a surface of the substrate. The coating layer includes at least one composite nitride layer including a compound having a composition represented by (TixAly)N [x denotes an atomic ratio of a Ti element based on a total of the Ti element and an Al element, y denotes an atomic ratio of the Al element based on a total of the Ti element and the Al element, and 0.10?x?0.50, 0.50?y?0.90, and x+y=1 are satisfied]. The composite nitride layer includes a phase having a lattice constant of from 0.400 nm or more to 0.430 nm or less, and a phase having a lattice constant of from 0.755 nm or more to 0.810 nm or less.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 11, 2020
    Assignee: TUNGALOY CORPORATION
    Inventor: Hirosato Nishizawa
  • Patent number: 10737332
    Abstract: Provided is a coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate. The coating layer includes an alternating laminate structure of an alternating laminate of: a first composite nitride layer including a compound having a composition represented by (TixAl1-x)N (wherein x denotes an atomic ratio of the Ti element based on a total of the Ti element and the Al element and satisfies 0.10?x?0.35); and a second composite nitride layer including a compound having a composition represented by (TiyAlzM1-y-z)N (wherein: M denotes an element of at least one kind selected from Zr, Hf, V, Nb, Ta, Cr, Mo, W, Si and Y; y satisfies 0.30?y?0.90; z satisfies 0.10?z?0.70; and y and z satisfy y+z?1). The first composite nitride layer includes a phase having a lattice constant of from 0.400 nm or more to 0.430 nm or less and a phase having a lattice constant of from 0.755 nm or more to 0.810 nm or less.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: August 11, 2020
    Assignee: TUNGALOY CORPORATION
    Inventors: Yusuke Hirano, Hirosato Nishizawa
  • Patent number: 10718166
    Abstract: The present disclosure relates to methods of laser-leaching polycrystalline diamond (PCD), devices for performing such methods, and to laser-leached PCD and elements and drill bits containing laser-leached PCD.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 21, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Qi Liang, William Brian Atkins
  • Patent number: 10717135
    Abstract: A coated tool may include a substrate and a coating layer located on a surface of the substrate. The coating layer includes: a first titanium carbonitride layer located on the substrate; a second titanium carbonitride layer located on the first titanium carbonitride layer; and an aluminum oxide layer located on the second titanium carbonitride layer. The first titanium carbonitride layer includes a plurality of first protrusions protruding toward a side of the aluminum oxide layer. The second titanium carbonitride layer includes a plurality of second protrusions protruding toward a side of the aluminum oxide layer. A number of second protrusions is greater than that of the first protrusions.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 21, 2020
    Assignee: KYOCERA CORPORATION
    Inventors: Hayato Kubo, Yoshikazu Kodama, Hirotoshi Itoh
  • Patent number: 10710168
    Abstract: The hard coating layer of the cutting tool includes a complex nitride or complex carbonitride layer expressed by the composition formula: (Ti1-xAlx)(CyN1-y). xavg and yavg satisfy 0.60?xavg?0.95 and 0?yavg?0.005. xavg is an average content ratio of Al in a total amount of Ti and Al, and yavg is an average content ratio of C in a total amount of C and N. Some crystal grains composing the complex nitride or complex carbonitride layer have a cubic structure. In crystal grains having the cubic structure, the average crystal grain misorientaion is 1 degree or more; or 2 degrees or more, based on analysis of the polished surface perpendicular to a surface of the layer. A peak exists in 1-2 degrees of the average crystal grain misorientation in the frequency distribution of the average crystal grain misorientation and the area ratio.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: July 14, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Sho Tatsuoka, Kenichi Sato, Kenji Yamaguchi
  • Patent number: 10711345
    Abstract: The present invention relates to a hard coating including an MT-TiCN layer and an ?-alumina layer which are formed by using a chemical vapor deposition method. A hard coating for cutting tools, which is a coating formed on a base material of a cutting tool formed of a hard material, the coating comprising: a TiCN layer; and an ?-alumina layer formed on the TiCN layer, wherein: the ?-alumina layer has a main peak (maximal strength peak) of (006) plane located between 20-40 degrees during a psi rocking analysis by an XRD; a residual stress in the ?-Al2O3 layer is ?0.9-0.4 GPa; the TiCN layer is composed of TiCxNyOz (x+y+z?1, x>0, y>0, z?0); a composition ratio of C/(C+N) is greater than or equal to 0.4 and smaller than 0.5; the ratio of TC(220)/TC(422) is smaller than 0.45; and the ratio of TC(220)/TC(311) is less than 0.45.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 14, 2020
    Assignee: KORLOY INC.
    Inventors: Seong-woo Cho, Dong-youl Lee, Jae-hoon Kang, Soon-yong Hong, Sun-yong Ahn, Young-heum Kim
  • Patent number: 10703636
    Abstract: A composite polycrystal includes: a polycrystalline diamond phase including a plurality of diamond particles; and non-diamond phases composed of non-diamond carbon. The non-diamond phases are distributed in the polycrystalline diamond phase. An average value of projected area equivalent circle diameters of the non-diamond phases is not more than 1000 nm.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: July 7, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuh Ishida, Takeshi Sato, Hitoshi Sumiya
  • Patent number: 10675690
    Abstract: A hard coating, which is to be disposed to cover a surface of a substrate, has a total thickness of 0.5-20 ?m, and includes an A layer and nanolayer-alternated layer that are alternately laminated by physical vapor deposition. The nanolayer-alternated layer includes a B layer and a C layer that are alternately laminated. The A layer has a thickness of 50-1000 nm and is AlCr nitride that is represented by a composition formula of [Al1-UCrU]N wherein an atomic ratio U is 0.20-0.80. The B layer has a thickness of 1-100 nm and is TiAl nitride that is represented by a composition formula of [Ti1-WAlW]N wherein an atomic ratio W is 0.30-0.85. The C layer has a thickness of 1-100 nm and is TiSi nitride that is represented by a composition formula of [Ti1-YSiY]N wherein an atomic ratio Y is 0.05-0.45. The nanolayer-alternated layer has a thickness of 50-1000 nm.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 9, 2020
    Assignee: OSG CORPORATION
    Inventors: Masatoshi Sakurai, Mei Wang, Hiroaki Sugita
  • Patent number: 10676810
    Abstract: A hard coating, which is to disposed to cover a surface of a tool substrate, has a total thickness of 0.5-20 ?m and includes an A layer and nanolayer-alternated layer that are alternately laminated by physical vapor deposition. The nanolayer-alternated layer includes a B layer and C layer that are alternately laminated. The A layer has a thickness of 50-1000 nm and is AlCr(SiC) nitride that is represented by a composition formula of [Al1-W-XCrW(SiC)X]N wherein an atomic ratio W is 0.20-0.80 and an atomic ratio X is 0.01-0.20. The B layer has a thickness of 1-100 nm and is TiAl nitride that is represented by a composition formula of [Ti1-YAlY]N wherein an atomic ratio Y is 0.30-0.85. The C layer has a thickness of 1-100 nm and is Ti(SiC) nitride represented by a composition formula of [Ti1-Z(SiC)Z]N wherein an atomic ratio Z is 0.05-0.45. The nanolayer-alternated layer has a thickness of 50-1000 nm.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 9, 2020
    Assignee: OSG CORPORATION
    Inventors: Masatoshi Sakurai, Mei Wang
  • Patent number: 10639724
    Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and, in the ?-type aluminum oxide layer, when regarding a texture coefficient of a (0,0,6) plane as a TC18 (0,0,6), and also regarding a texture coefficient of a (0,0,12) plane as a TC18 (0,0,12), the TC18 (0,0,6) is the highest texture coefficient and the TC18 (0,0,12) is the second highest texture coefficient.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: May 5, 2020
    Assignee: TUNGALOY CORPORATION
    Inventor: Takaaki Nakamura
  • Patent number: 10619422
    Abstract: A cutting table comprises a polycrystalline hard material and at least one rhenium-containing structure within the polycrystalline hard material and comprising greater than or equal to about 10 weight percent rhenium. A cutting element, an earth-boring tool, and method of forming a cutting element are also described.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 14, 2020
    Assignee: Baker Hughes, A GE Company, LLC
    Inventors: Wanjun Cao, Xu Huang, Steven W. Webb
  • Patent number: 10618814
    Abstract: Diamond bodies and methods of manufacture are disclosed. Diamond bodies are formed from at least a bimodal, alternatively a tri-modal or higher modal, feedstock having at least one fraction of modified diamond particles with a fine particle size (0.5-3.0 ?m) and at least one fraction of diamond particles with coarse particle size (15.0 to 30 ?m). During high pressure—high temperature processing, fine particle sized, modified diamond particles in the first fraction preferentially fracture to smaller sizes while preserving the morphology of coarse particle sized diamond particles in the second fraction. Diamond bodies incorporating the two fractions have a microstructure including second fraction diamond particles dispersed in a continuous matrix of first fraction modified diamond particles and exhibit improved wear characteristics, particularly for wear associated with drilling of geological formations.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: April 14, 2020
    Assignees: DIAMOND INNOVATIONS, INC., BAKER HUGHES, a GE Company, LLC
    Inventors: Alexanne Johnson, Andrew Dean Gledhill, Danny Eugene Scott, Marc William Bird
  • Patent number: 10600655
    Abstract: A process for chemical mechanical polishing a substrate containing tungsten to at least reduce dishing of tungsten features of 100 ?m or less. The process includes providing a substrate containing tungsten features of 100 ?m or less; providing a polishing composition, containing, as initial components: water; an oxidizing agent; arginine or salts thereof; a dicarboxylic acid, a source of iron ions; a colloidal silica abrasive; and, optionally, a pH adjusting agent; and, optionally, a surfactant; and, optionally, a biocide; providing a chemical mechanical polishing pad, having a polishing surface; creating dynamic contact at an interface between the polishing pad and the substrate; and dispensing the polishing composition onto the polishing surface at or near the interface between the polishing pad and the substrate; wherein some of the tungsten is polished away from the substrate and yet at least reducing dishing of the tungsten features of 100 ?m or less.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 24, 2020
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Jia-De Peng, Lin-Chen Ho, Syin Hsu
  • Patent number: 10584069
    Abstract: Provided is a cBN sintered material for a tool body in which a ratio (PNTB/PNBN) of the number (PNTB) of cBN particles in contact with a Ti boride having a long axis of 150 nm or more to the total number (PNBN) of cBN particles is 0.05 or less.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 10, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Masahiro Yano, Yosuke Miyashita
  • Patent number: 10569503
    Abstract: A method of manufacturing a structure includes: a molding step of impregnating carbon fibers with a resin material and curing the resin material for molding a carbon fiber composite material; a polishing step of polishing a polishing region on a surface of the carbon fiber composite material molded in the molding step, with an abrasive that has a predetermined hardness; and a bonding step of bonding, through an adhesive, another member to a part of the polishing region polished by the polishing step. The molding step forms, in a top layer, a polishing layer that has a hardness which is lower than the predetermined hardness, and forms a surface protective layer that is lower than the polishing layer, protects the carbon fiber composite material from the abrasive, and contains a protective filler having a hardness which is higher than the predetermined hardness.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 25, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Nobuyuki Kamihara, Yoshiro Aoshima, Toshio Abe
  • Patent number: 10570509
    Abstract: A coated cutting tool for chip forming machining of metals includes a substrate having a surface coated with a chemical vapour deposition (CVD) coating. The coated cutting tool has a substrate coated with a coating including a layer of ?-Al2O3, wherein the ?-Al2O3 layer exhibits a dielectric loss of 10?6?tan ??0.0025, as measured with AC at 10 kHz, 100 mV at room temperature of 20° C.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 25, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Carl Bjormander, Erik Lindahl, Jan Engqvist