Patents Examined by Pegah Parvini
  • Patent number: 10774251
    Abstract: A functional abrasive particle comprises a ceramic body having at least one hole extending therethrough. A functional material is at least partially disposed within the hole. The functional material contains a binder and functional particles that are magnetizable, metallic, or both. Methods of making functional abrasive particles, and abrasive articles including them are also disclosed.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: September 15, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph B. Eckel, Aaron K. Nienaber, Yuyang Liu, Don V. West
  • Patent number: 10760344
    Abstract: Embodiments of the invention relate to methods of fabricating leached polycrystalline diamond compacts (“PDCs”) in which a polycrystalline diamond table thereof is leached and resized to provide a leached region having a selected geometry. Creating a leached region having such a selected geometry may improve the performance of the PDC in various conditions, such as impact strength and/or thermal stability.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: September 1, 2020
    Inventor: Greg Carlos Topham
  • Patent number: 10759943
    Abstract: Provided are a black mixed oxide that contains chromium per se of any valency as a main component, and fails to contain cobalt as the main component material, and has a high safety, an excellent color tone and economical efficiency, and a method for producing the same, and various products using the black mixed oxide material. The mixed oxides comprise oxides containing La, Mn and Cu as main components but containing neither Cr nor Co as a main component, wherein the contents of La, Mn and Cu in the mixed oxides satisfy the following ratios, as oxide equivalent amount with respect to 100% by weight of the oxide equivalent amount: the La content as La2O3 being 35-70 wt %; the Mn content as MnO2 being 25-60 wt %; and the Cu content as CuO being 0.5-10 wt %.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 1, 2020
    Assignees: Nakashima Sangyo Co., Ltd., Okuno Chemical Industries Co., Ltd.
    Inventors: Mikio Nakashima, Takashi Kato
  • Patent number: 10759941
    Abstract: The invention relates to a metal effect pigment including a metallic substrate in platelet form and a coating applied thereto, wherein the coating includes a spacer layer. The invention further relates to a process for production of and to the use of the metal effect pigment.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 1, 2020
    Assignee: Eckart GmbH
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10759023
    Abstract: Provided are abrasive articles that include a plurality of layers, in the following order: a backing; an abrasive layer; and a supersize coat. The supersize coat contains a metal salt of a long-chain fatty acid and clay particles dispersed therein. Advantageously, the clay particles enhance the optical clarity of the supersize coat, allowing printed abrasive articles to be made with thicker supersize coatings. The addition of clay was also found to improve cut performance of the abrasive article relative to articles in which the clay particles are absent.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: September 1, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Adam J. Meuler, Daniel J. Schmidt, Yugeun P. Yang, Paul D. Graham, David A. Nettleship
  • Patent number: 10753158
    Abstract: Polycrystalline diamond cutters for rotary drill bits and methods of making the same are disclosed. Polycrystalline diamond cutters include a support substrate and a polycrystalline diamond body coupled to the support substrate. The polycrystalline diamond body includes a plurality of diamond grains exhibiting inter-diamond bonding therebetween and defining a plurality of interstitial regions, a non-catalytic material distributed throughout the polycrystalline diamond body in a detectable amount, and a catalytic material distributed throughout the polycrystalline diamond body in a detectable amount.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 25, 2020
    Inventors: Valeriy Konovalov, Abhijit Suryavanshi
  • Patent number: 10745802
    Abstract: In this diamond-coated cemented carbide cutting tool, (1) an average particle size of WC particles is 0.5 to 0.9 ?m, (2) (Rz) being 0.5 to 1.0 ?m, a maximum distance between the concave and convex (?) is 0.5 to 1.5 ?m, a length (Ye) is 0.5 to 2.0 ?m, (3) a sum of areas of WC particles, which satisfies (L1) being 0.4 to 0.8 ?m, (L2) being 0.2 to 0.4 ?m, and (L1)/(L2) being 1.5 to 2.5, is 70 area % or more, (4) an average grain size of diamond crystals in a region of 0.5 to 1.5 ?m from the body interface is 0.1 to 0.3 ?m, and (5) columnar crystals satisfying at least one of: a ratio of crystals, which has a growth direction shifted in 10 degrees or less from the diamond film thickness direction, being 90% or more; or an orientation ratio of <110> being 30 to 70%.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: August 18, 2020
    Inventors: Shinichi Shikada, Akimitsu Tominaga, Hideaki Takashima
  • Patent number: 10738194
    Abstract: The invention relates to composite pigment particles containing calcium phosphate, their manufacture and their use in coatings, plastics and laminates. The composite pigment particles contain titanium dioxide pigment particles and precipitated calcium phosphate. In one embodiment, the composite pigment particles additionally contain an inorganic and/or organic filler as an extender, preferably selected from the group comprising Ca, Ca—Mg and Mg carbonates, natural and synthetic silicon dioxide and oxides. The composite pigment particles are manufactured in a combined process of dispersion and precipitation. Depending upon the combination selected, use of composite titanium dioxide pigment particles of the invention can provide improved optical properties such as tinting strength or permits pigment savings with little to no loss of optical properties. In particular, the composite pigment particles of the invention can be used to replace part or all of the titanium dioxide contained in the user's system.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: August 11, 2020
    Inventors: Frank Mersch, Uwe Wilkenhoener
  • Patent number: 10737327
    Abstract: A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a structure comprising superhard material, the structure having porosity greater than 20% by volume and up to around 80% by volume. A method of forming such a superhard polycrystalline construction comprises forming a skeleton structure of a first material having a plurality of voids, at least partially filling some or all of the voids with a second material to form a pre-sinter assembly, and treating the pre-sinter assembly to sinter together grains of superhard material to form a body of polycrystalline superhard material comprising a first region of superhard grains, and an interpenetrating second region; the second region being formed of the other of the first or second material that does not comprise the superhard grains; the superhard grains forming a sintered structure having a porosity greater than 20% by volume and up to around 80% by volume.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 11, 2020
    Assignee: Element Six (UK) Limited
    Inventors: Valentine Kanyanta, Miriam Miranda-Fernandez, Jonee Christine Paredes Zunega, Xiaoxue Zhang, Mehmet Serdar Ozbayraktar
  • Patent number: 10730164
    Abstract: A process can include forming at least one precursor abrasive component on a core and infiltrating at least a portion of the precursor abrasive component. The precursor abrasive component can include a body including a metal bond matrix and abrasive particles. Infiltrating can be performed after forming the precursor abrasive component with an infiltrant material. The infiltrant material can include a metal element, an alloy or a combination thereof. In an embodiment, forming at least one precursor abrasive component can include simultaneously joining the precursor abrasive component to the core.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: August 4, 2020
    Inventors: Ji Xiao, Aiyun Luo, Ignazio Gosamo, Vivian Susek
  • Patent number: 10722962
    Abstract: A saw wire and various methods of use and manufacture are provided. The saw wire includes a metal wire containing at least one of tungsten and a tungsten alloy. A nickel plating layer is provided over the metal wire. An adhesion layer is provided at an interface between the metal wire and the nickel plating layer. The adhesion layer contains nickel and tungsten. A plurality of abrasive particles are provided at a surface of the nickel plating layer.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: July 28, 2020
    Inventors: Tomohiro Kanazawa, Tetsuji Shibata, Kazushige Sugita, Hiroshi Gouda, Naoki Kohyama
  • Patent number: 10717909
    Abstract: A cerium-based abrasive that achieves a high polishing rate and suppresses the occurrence of surface defects such as scratches and pits and the deposition of the abrasive particles on the polished surface in surface polishing of glass substrates or the like, at low cost with a high production efficiency. The cerium-based abrasive includes a cubic composite rare earth oxide and a composite rare earth oxyfluoride, containing 95.0 to 99.5 mass % of total rare earth elements in terms of oxides, containing 54.5 to 95.0 mass % of cerium in terms of oxide, 4.5 to 45.0 mass % of lanthanum in terms of oxide, and 0.5 to 2.0 mass % of neodymium in terms of oxide relative to the total rare earth elements in terms of oxides, containing 0.5 to 4.0 mass % of fluorine atoms, and containing 0.001 to 0.50 mass % of sodium atoms relative to the total rare earth elements in terms of oxides.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: July 21, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Tomoyuki Masuda, Hiroshi Saegusa
  • Patent number: 10696883
    Abstract: A method of making abrasive particles includes: providing a slurry comprising non-colloidal solid particles and a liquid vehicle; forming at least a portion of the slurry into shaped bodies contacting a substrate; at least partially drying the shaped bodies to provide shaped abrasive precursor particles; separating at least a portion of the shaped abrasive precursor particles from the substrate; and converting at least a portion of the shaped abrasive precursor particles into shaped abrasive particles. The shaped abrasive particles comprise alpha alumina having an average crystal grain size of 0.8 to 8 microns and an apparent density that is at least 92 percent of the true density. Each shaped abrasive particle has a respective surface comprising a plurality of smooth sides that form at least four vertexes. Shaped abrasive particles, abrasive articles including them, and methods of using are also disclosed.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 30, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Negus B. Adefris
  • Patent number: 10676619
    Abstract: Disclosed are pigment powders containing only coated BiOCl flakes, which flakes area) BiOCl flakes having a coating containing yellow iron oxide Fe2O3*xH2O, optionally a colorant, optionally an adjuvant, and optionally SiO2, b) BiOCl flakes having a coating containing SiO2, optionally a colorant, and optionally an adjuvant, c) BiOCl flakes having a coating containing a colorant, SiO2, optionally yellow iron oxide Fe2O3*xH2O, and optionally an adjuvant, or d) BiOCl flakes having a coating containing Fe3O4 and optionally SiO2, to a process for the preparation of the pigment powders, and to the use thereof especially in cosmetic formulations.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 9, 2020
    Assignee: Merck Patent GmbH
    Inventors: Padma Kaviratna, Mark Tellefsen, Qingmin Cheng, Matthew Eddens, Qinyun Peng
  • Patent number: 10668598
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions and at least one shaped abrasive particle is disposed on a majority of each of the discrete adhesive contact regions, wherein at least 50% of the shaped abrasive particles comprise a predetermined side orientation and have a tilt angle of at least 45 degrees, wherein the shaped abrasive particles comprise a polycrystalline material and are free of binder, wherein the first plurality of discrete adhesive contact regions comprise a predetermined two-dimensional shape as viewed from above, and wherein each of the discrete contact regions comprises a length, a width, or a combination thereof that substantially corresponds to a dimension of the at least one abrasive particle.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 2, 2020
    Inventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
  • Patent number: 10669461
    Abstract: A method of making shaped abrasive particles including forming an abrasive flake comprising a plurality of precursor shaped abrasive particles and a frangible support joining the precursor shaped abrasive particles together; transporting the abrasive flake through a rotary kiln to sinter the abrasive flake; and breaking the sintered abrasive flake into individual shaped abrasive particles. The method is useful to make small shaped abrasive particles having insufficient mass to be efficiently individually sintered in a rotary kiln without joining two or more of the shaped abrasive particles together.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: June 2, 2020
    Inventor: Dwight D. Erickson
  • Patent number: 10654150
    Abstract: A grinding disk and a method of manufacturing the same are provided. The grinding disk includes a graphite base and a silicon carbide film, the silicon carbide film covering the graphite base, and the silicon carbide film has a surface grain size of 5 ?m to 80 ?m. By a hot-wall chemical vapor deposition system, a highly dense silicon carbide film is formed on a surface of the graphite base. The grinding disk may replace a conventional metallographic grinding and polishing disk, and is improved in characteristics such as hydrophobicity and abrasion resistance.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: May 19, 2020
    Assignee: Industrial Technology Research Institute
    Inventors: Wei-Chien Tsai, Hao-Wen Cheng, Jin-Bao Wu, Ming-Sheng Leu
  • 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: 10640423
    Abstract: Method to artificially agglomerate finely divided materials. A method to agglomerate finely divided material into aggregates, the aggregates being larger than the finely divided material, comprising the steps of (a) mixing finely divided material, binder and water in a mixer, (b) adding an agglomerating agent to the mix formed in step (a) and mixing constantly. Finely divided material is selected from the group consisting of cement, sand, clay, glass, slag, fly ash, stone powder, bypass dust, limestone, silica fume, crushed brick, brick powder and crushed stone or a combination thereof.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: May 5, 2020
    Inventors: Davide Zampini, Alexandre Guerini, Giovanni Volpatti
  • Patent number: 10625391
    Abstract: Disclosed is a non-porous molded article for a polishing layer, the non-porous molded article including a thermoplastic polyurethane, wherein the thermoplastic polyurethane has a maximum value of a loss tangent (tan ?) in a range of ?70 to ?50° C. of 4.00×10?2 or less. Preferably, the thermoplastic polyurethane is obtained by polymerization of a polymer diol having a number average molecular weight of 650 to 1400, an organic diisocyanate, and a chain extender, and a content ratio of nitrogen derived from an isocyanate group of the organic diisocyanate is 5.7 to 6.5 mass %.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 21, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Kiyofumi Kadowaki, Shinya Kato, Chihiro Okamoto, Mitsuru Kato, Minori Takegoshi