Patents Examined by Pegah Parvini
  • Patent number: 11141835
    Abstract: According to one embodiment, a method of making an abrasive article is disclosed. The method can comprise: providing a surface; disposing magnetizable abrasive particles on the surface; and varying a magnetic field relative to the magnetizable abrasive particles to impart a non-random orientation and/or alignment to the magnetizable abrasive particles relative to the surface.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 12, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Ronald D. Jesme, Thomas J. Nelson, Joseph B. Eckel, Aaron K. Nienaber, Vincent R. Jansen, Samad Javid
  • Patent number: 11141834
    Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) and methods of fabricating polycrystalline diamond tables and PDCs in a manner that facilitates removal of metal-solvent catalyst used in the manufacture of polycrystalline diamond tables of such PDCs.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 12, 2021
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Mohammad N. Sani, Jair J. Gonzalez, Andrew E. Dadson, Debkumar Mukhopadhyay
  • Patent number: 11135560
    Abstract: In an embodiment, a polycrystalline diamond table includes a plurality of bonded diamond grains and a plurality of interstitial regions defined by the plurality of bonded diamond grains. The polycrystalline diamond table may be at least partially leached such that at least a portion of at least one interstitial constituent has been removed from at least a portion of the plurality of interstitial regions by exposure to a leaching agent. The leaching agent may include a mixture having a ratio of weight % hydrofluoric acid to weight % nitric acid of about 1.0 to about 2.4, and water in a concentration of about 50 weight % to about 85 weight %. Various other materials, articles, and methods are also disclosed.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: October 5, 2021
    Assignee: US Synthetic Corporation
    Inventors: Julie Ann Kidd, Heather Marie Schaefer, Chengkun Xu, Jason K. Wiggins, Matthew Brown, Cody Frisby
  • Patent number: 11124458
    Abstract: An admixture for concrete includes at least two different types of nanocarbon particles in a water/surfactant mixture having a predetermined percentage range by mass of the admixture. The admixture also includes surfactant and can include a nano-silica based suspension stabilizer having a predetermined percentage range by mass of the admixture.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 21, 2021
    Assignee: EDEN INNOVATIONS LTD.
    Inventors: Justin Fulton, Gregory H. Solomon, Roger W. Marmaro, Robert Cavaliero, Allan Godsk Larsen, Shawn Meredith, Christopher Flatley Abatelli
  • Patent number: 11123841
    Abstract: A super-abrasive grinding wheel includes a core and a super-abrasive grain layer provided on a surface of the core, the super-abrasive grain layer including diamond abrasive grains and CBN abrasive grains, the diamond abrasive grains and the CBN abrasive grains being fixed to the core in a single layer by a binder. The diamond abrasive grains and the CBN abrasive grains have projecting tips acting on a workpiece, the projecting tips having a variation in height of 10 ?m or less, the diamond abrasive grains having their projecting tips with irregularities of 0.1 ?m or more in height.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: September 21, 2021
    Assignee: A.L.M.T. Corp.
    Inventor: Nobuhide Nakamura
  • Patent number: 11123842
    Abstract: Disclosed is a process for making a grinding wheel for the squaring of ceramic, formed by a support body and an abrasive ring. The process does not involve costly workings on the body and on the ring and produces a light grinding wheel which, therefore, is more practical to be handled by the handling machine.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: September 21, 2021
    Assignee: DELLAS S.P.A.
    Inventor: Daniele Ferrari
  • Patent number: 11118062
    Abstract: A LiDAR reflecting dark colored pigment includes a core layer formed from a reflecting material and a first layer formed from a first absorber material or a first dielectric material extending across the core layer. A second layer formed from a second absorber material different than the third absorber material extends across the first layer and a third layer formed from a third absorber material or a second dielectric material extends across the second layer. The third absorber material is different than the second absorber material. The LiDAR reflecting dark colored pigment reflects less than 10% of incident visible electromagnetic radiation and more than 60% of incident near-IR electromagnetic radiation with wavelengths between and including 850 nm and 950 nm for all incident angles of the visible and near-IR electromagnetic radiation between and including 0° and 45°. A color reflected by the multilayer stack has a lightness in CIELAB color space less than or equal to 40.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 14, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Debasish Banerjee, Cynthia Gazepis Templeman
  • Patent number: 11117288
    Abstract: A montmorillonite slurry, containing a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less, ammonia, water, and an organic solvent, in which the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone, the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, and the content of ammonia in the slurry is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite in the slurry; a method of producing the same; and a clay film.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: September 14, 2021
    Assignee: KUNIMINE INDUSTRIES CO., LTD.
    Inventor: Munehiro Kubota
  • Patent number: 11111182
    Abstract: A ceramic sintered body containing aluminum oxide, tungsten carbide and zirconium oxide, wherein: the zirconium oxide contains ZrO and ZrO2; the ZrO2 has a crystal structure or structures of one or two kinds selected from the group consisting of a tetragonal crystal structure and a cubic crystal structure; and when, in X-ray diffraction, regarding a peak intensity for a (111) plane of the ZrO as being denoted by I1, regarding a peak intensity for a (101) plane of ZrO2 having a tetragonal crystal structure as being denoted by I2t, and also regarding a peak intensity for a (111) plane of ZrO2 having a cubic crystal structure as being denoted by I2c, a ratio of I1 based on a total of I1, I2t and I2c [I1/(I1+I2t+I2c)] is from 0.05 or more to 0.90 or less.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: September 7, 2021
    Assignee: TUNGALOY CORPORATION
    Inventor: Takashi Watanabe
  • Patent number: 11110567
    Abstract: An annular grindstone includes a grindstone portion in which abrasive grains are fixed with a bonding material containing nickel and has a through hole at the center thereof. The grindstone portion has a laminated structure of a total of three or more layers in which a first layer and a second layer having a porous structure are alternately laminated on top of another along a penetrating direction of the through hole and both of outermost layers in the laminated structure which are exposed outside are the first layers.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 7, 2021
    Assignee: DISCO CORPORATION
    Inventor: Soichi Katayama
  • Patent number: 11103975
    Abstract: The present invention relates to an abrasive disk that is excellent in workability and stability and has a low degree of fatigue applied to workers and tools, and a process for producing the same. The abrasive disc is excellent in stability by virtue of a high adhesive strength of each layer, has high flexibility, elasticity, and adhesiveness, and is lightweight per unit area. Thus, it has a low degree of fatigue applied to workers and expensive tools. In addition, according to the above production process, the abrasive disk can be continuously mass-produced.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 31, 2021
    Assignee: TU GLOBAL LTD.
    Inventor: Yong Bum Kim
  • Patent number: 11097398
    Abstract: In some examples, an abrasive particle transfer system including a production tool including a dispensing surface with a plurality of cavities formed therein; abrasive particles removably disposed within at least some of the cavities; and a nonwoven substrate having an outer surface opposing the dispensing surface of the production tool, wherein the dispending surface of the production tool is configured to apply a compressive force to the outer surface of the nonwoven substrate to compress the nonwoven substrate from a first thickness to a second thickness, wherein, while the nonwoven substrate is compressed to the second thickness by the production tool, the abrasive particles are transferred from the plurality of cavities to the nonwoven substrate.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 24, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Aaron K. Nienaber, Thomas J. Nelson, Grayce T. Huberty, Louis S. Moren, Wayne W. Maurer, Rebecca A. Putans, Ernest L. Thurber
  • Patent number: 11090780
    Abstract: A method of transferring a shaped particle to a substrate includes providing a scrim of at least two elongate strands periodically joined together at flexible bond regions to form an array of apertures between the strands. The scrim is extended along at least one direction to increase the minimum dimension of the apertures. Shaped particles are applied to the extended scrim and at least a portion of the shaped particles enter in at least some of the apertures therein. The extended scrim is relaxed and frictionally retains the particles between the elongate strands. The particle loaded scrim is extended along at least one direction to release and transfer the shaped particles to the substrate in a predetermined orientation.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 17, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Thomas J. Nelson, Jasmeet Kaur, Ronald W. Ausen, Jaime A. Martinez, Edward J. Woo
  • Patent number: 11084143
    Abstract: A method of fabricating a polishing pad using an additive manufacturing system includes depositing successive layers by droplet ejection to form the polishing pad. The polishing pad includes a polishing surface having one or more partitions separated by one or more grooves. Depositing a layer of the successive layers includes dispensing first regions corresponding to edges of the one or more partitions by a first droplet ejection process. After curing the first regions, a second region corresponding to interior of the one or more partitions is dispensed between the edges by a different second droplet ejection process.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 10, 2021
    Assignee: Applied Materials, Inc.
    Inventor: Daniel Redfield
  • Patent number: 11072563
    Abstract: A fused grain having the following chemical composition in percent by weight in relation to the oxides: ZrO2: 16% to 30%, provided that HfO2<2%, Al2O3: percentage needed to bring the total to 100%, Cr2O3: ?0.2%, TiO2: ?0.5%, Cr2O3+TiO2: <7%, other elements: <3%, provided that SiO2+CaO+MgO<1.5%.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 27, 2021
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Céline Delwaulle, Arnaud Apheceixborde
  • Patent number: 11072732
    Abstract: A magnetizable abrasive particle comprises a ceramic body having an outer surface and a magnetizable layer disposed on a portion, but not the entirety, of the outer surface. The ceramic body comprises a platelet having two opposed major facets connected to each other by a plurality of side facets. The magnetizable layer completely covers one of the two opposed major facets, and the magnetizable layer has a magnetic dipole oriented perpendicular or parallel to the facet which it completely covers. A plurality of the magnetizable abrasive particles, and abrasive articles including them are also disclosed. Methods of making the foregoing are also disclosed.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: July 27, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas J. Nelson, Joseph B. Eckel, Aaron K. Nienaber, Jaime A. Martinez, Eli A. Davis, Louis S. Moren
  • Patent number: 11059148
    Abstract: An abrasive article can include a body including a plurality of portions including a first abrasive portion and a second abrasive portion. The first abrasive portion can include a vitreous bond material and abrasive particles contained within the bond material. The second abrasive particles can include an organic bond material and abrasive particles contained within the bond material. The body can have a burst speed of at least 65 m/s. In an embodiment, the abrasive article can include an interior portion coupled to the first and second abrasive portions. In another embodiment, the interior portion can optionally include abrasive particles or a filler material.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 13, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Amandine Martin, Joachim Schwarzkopf, Peter Janeczek, Flavy Bayard
  • Patent number: 11059147
    Abstract: An abrasive article can include a substrate, abrasive particles coupled by a bond material to the substrate, and a coating overlying at least partially the exterior surface of the bond material. The coating can be a poly(p-xylylene) polymer applied via vapor deposition and may provide enhanced strength to the bond material and extended life time to the abrasive article.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: July 13, 2021
    Assignee: SAINT-GOBAIN ABRASIVES, INC./SAINT-GOBAIN ABRASIFS
    Inventors: Cecile O. Mejean, Charles J. Gasdaska, Lucie Fraichard
  • Patent number: 11053419
    Abstract: A grinding tool includes a substrate, and at least an abrasive particle affixed to the substrate. The abrasive particle has a base, and four tips adjacent to one another protruding from the base, the base having a cavity of a generally cross shape extending between the four tips, the cavity including a material discharge surface disposed between two adjacent ones of the four tips, the material discharge surface being located at an end of the cavity and adjacent to a side surface of the base, an inner material angle between the material discharge surface and the side surface being between about 120 degrees and about 160 degrees. Moreover, embodiments described herein include a method of manufacturing the grinding tool.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: July 6, 2021
    Assignee: KINIK COMPANY
    Inventors: Jui-Lin Chou, Chia-Feng Chiu, Chin-Chung Chou, Hsin-Chun Wang
  • Patent number: 11040429
    Abstract: An abrasive rotary tool includes a tool shank defining an axis of rotation for the rotary tool, and an abrasive external working surface. The abrasive external working surface includes a resin, and a plurality of porous ceramic abrasive composites dispersed in the resin, the porous ceramic abrasive composites including individual abrasive particles dispersed in a porous ceramic matrix. At least a portion of the porous ceramic matrix comprises glassy ceramic material. A ratio of the average porous ceramic abrasive composite size to the average individual abrasive particle size is no greater than 15 to 1.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 22, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bruce A. Sventek, David G. Baird, Adam J. Painter, Tammy J. Engfer, Dennis J. Stapleton, John J. Gagliardi