Patents Examined by Pegah Parvini
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Patent number: 11583935Abstract: A coated cutting tool is provided which allows for satisfactory machining over a long period of time, particularly in the machining of difficult-to-machine materials with low thermal conductivity. The coated cutting tool includes a substrate and a coating layer formed on a surface of the substrate, wherein: at least one layer of the coating layer comprises a predetermined layer containing a compound having a composition represented by the formula: (AlXTi1-X)N [wherein x denotes an atomic ratio of the Al element based on a total of the Al element and the Ti element, and x satisfies 0.60?x?0.85]; a value of an orientation index TC (311) of a cubic (311) plane of the predetermined layer is from 2.5 or more to 4.2 or less; and an average thickness of the predetermined layer is from 1.0 ?m or more to 12.0 ?m or less.Type: GrantFiled: March 25, 2016Date of Patent: February 21, 2023Assignee: TUNGALOY CORPORATIONInventor: Shigeki Tanaka
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Patent number: 11577367Abstract: A method of aligning abrasive particles on a substrate. The method comprises providing a substrate. The method also comprises providing abrasive particles. The method also comprises generating a modulated electrostatic field. The modulated electrostatic field is configured to have a first effective direction at a first time and a second effective direction at a second time. The electrostatic field is configured to cause the abrasive particles to align rotationally in both a z-direction and a y-direction.Type: GrantFiled: June 30, 2020Date of Patent: February 14, 2023Assignee: 3M Innovative Properties CompanyInventors: Joseph B. Eckel, Ronald D. Jesme, Aaron K. Nienaber
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Patent number: 11572658Abstract: A method for manufacturing microfibrillated cellulose, a particulate grinding medium suitable for use in said method, a material which wears rough, and a method for making said particulate grinding medium.Type: GrantFiled: January 16, 2020Date of Patent: February 7, 2023Assignee: FIBERLEAN TECHNOLOGIES LIMITEDInventors: Tafadzwa Motsi, David Robert Skuse, Jean Andre Alary, Andreas Borger, Neil Rowson, Thomas Richard Skuse
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Patent number: 11554462Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”), methods of fabricating PDCs, and applications for such PDCs. In an embodiment, a method includes providing an at least partially leached polycrystalline diamond (“PCD”) body. A residual amount of acid may remain in and/or on the at least partially leached PCD body. The method further includes removing and/or neutralizing at least some of the residual amount of acid from the at least partially leached PCD body and/or a substrate to which the at least partially leached PCD body is attached.Type: GrantFiled: January 21, 2020Date of Patent: January 17, 2023Assignee: US Synthetic CorporationInventors: Julie Ann Kidd, Heather Marie Schaefer, Jason K. Wiggins, Cody Frisby
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Patent number: 11548830Abstract: The invention relates to a method for producing a ceramic moulded body, comprising the following steps: a) producing a green body containing ceramic material, binding agents and an organic pore forming agent; b) heating the green body to a temperature higher than the sublimation and/or decomposition temperature of the pore forming agent; c) burning the green body to form a ceramic moulded body. According to the invention, the binding agent comprises polyglycols and fumaric acid.Type: GrantFiled: February 9, 2017Date of Patent: January 10, 2023Assignee: HERMES SCHLEIFMITTEL GMBHInventors: Siegbert Christiani, Chriffe Omar Belda, Christian Wenzel
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Patent number: 11542425Abstract: The present disclosure a leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof.Type: GrantFiled: April 22, 2022Date of Patent: January 3, 2023Assignee: Southwest Petroleum UniversityInventors: Yang Bai, Lingfeng Wu, Jing Zhang, Wenzhe Li, Pingya Luo, Feng Dai, Jingping Liu, Ren Wang, Daoxiong Li, Wen Xu
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Patent number: 11535520Abstract: A method of processing a polycrystalline diamond body includes positioning an electrode near the polycrystalline diamond body such that a gap is defined between the electrode and the polycrystalline diamond body, the polycrystalline diamond body having a metallic material disposed in interstitial spaces defined within the polycrystalline diamond body. The method includes applying a voltage between the electrode and the polycrystalline diamond body, and passing a processing solution through the gap. The electrode is a cathode and the polycrystalline diamond body is an anode. An assembly for processing a polycrystalline diamond body includes the polycrystalline diamond body, an electrode positioned such that a gap is defined between the electrode and the polycrystalline diamond body, a processing solution passing through the gap such that the processing solution is in electrical communication with each of the polycrystalline diamond body and the electrode, and at least one power source.Type: GrantFiled: June 23, 2020Date of Patent: December 27, 2022Assignee: US Synthetic CorporationInventor: Mark Pehrson Chapman
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Patent number: 11536091Abstract: A cutting element comprises a supporting substrate, and a cutting table attached to an end of the supporting substrate. The cutting table comprises inter-bonded diamond particles, and a thermally stable material within interstitial spaces between the inter-bonded diamond particles. The thermally stable material comprises a carbide precipitate having the general chemical formula, A3XZn-1, where A comprises one or more of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, and U; X comprises one or more of Al, Ga, Sn, Be, Bi, Te, Sb, Se, As, Ge, Si, B, and P; Z comprises C; and n is greater than or equal to 0 and less than or equal to 0.75. A method of forming a cutting element, an earth-boring tool, a supporting substrate, and a method of forming a supporting substrate are also described.Type: GrantFiled: May 30, 2018Date of Patent: December 27, 2022Assignee: Baker Hughes Holding LLCInventors: Wanjun Cao, Marc W. Bird
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Patent number: 11534892Abstract: In methods and systems of making an abrasive article, abrasive particles are loaded to a distribution tool including a plurality of upper walls defining a plurality of spacing slots, and a plurality of lower walls defining a plurality of distribution slots. The spacing slots are open to the distribution slots, which are open to a lower side of the tool. The loaded particles are spaced and distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool in a machine direction. The upper walls space the particles in the machine direction. The particles distributed by the lower walls undergo an orientation sequence in which each particle is oriented into a column aligned along the machine direction. The upper walls can be disposed oblique to the lower walls. The upper and lower walls can have pointed upper portions.Type: GrantFiled: December 15, 2017Date of Patent: December 27, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Yuyang Liu, Junting Li, Geoffrey I. Wilson, Ernest L. Thurber
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Patent number: 11530345Abstract: 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: GrantFiled: May 20, 2020Date of Patent: December 20, 2022Assignee: 3M Innovative Properties CompanyInventors: Anatoly Z. Rosenflanz, Negus B. Adefris
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Patent number: 11530467Abstract: Cemented carbide contains a first hard phase and a binder phase. The first hard phase is composed of tungsten carbide particles. The binder phase is composed of cobalt, nickel, iron, and copper as constituent elements. An average content of each of the constituent elements is not lower than 10 atomic % and not higher than 30 atomic %. Cemented carbide contains no second hard phase, or a content of the second hard phase is equal to or lower than 2 mass % of a total amount of cemented carbide. The second hard phase is composed of a compound containing at least one type of a metal element selected from the group consisting of a group-IV element, a group-V element, and a group-VI element in a periodic table except for tungsten and at least one type of an element selected from the group consisting of carbon, nitrogen, and oxygen.Type: GrantFiled: December 23, 2020Date of Patent: December 20, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Takato Yamanishi, Shinya Imamura
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Patent number: 11529764Abstract: The present invention relates generally to coated abrasive articles, such as coated abrasive film belts having improved strength and durability, as well as methods of making and using said coated abrasive articles.Type: GrantFiled: December 20, 2019Date of Patent: December 20, 2022Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventor: Paul S. Goldsmith
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Patent number: 11524384Abstract: Embodiments of the present disclosure provide for abrasive delivery (AD) polishing pads and manufacturing methods thereof. In one embodiment, a method of forming a polishing article includes forming a sub-polishing element from a first curable resin precursor composition and forming a plurality of polishing elements extending from the sub-polishing element. Forming the plurality of polishing elements includes forming a continuous polymer phase from a second curable resin precursor composition and forming a plurality of discontinuous abrasive delivery features disposed within the continuous polymer phase. The sub-polishing element is formed by dispensing a first plurality of droplets of the first curable resin precursor composition. The plurality polishing elements are formed by dispensing a second plurality of droplets of the second curable resin precursor composition.Type: GrantFiled: July 30, 2018Date of Patent: December 13, 2022Assignee: Applied Materials, Inc.Inventors: Ashwin Chockalingam, Rajeev Bajaj, Ashavani Kumar, Daniel Redfield
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Patent number: 11524390Abstract: The present invention provides methods of manufacturing a chemical mechanical polishing (CMP polishing) layer for polishing substrates, such as semiconductor wafers comprising providing a composition of a plurality of liquid-filled microelements having a polymeric shell; classifying the composition via centrifugal air classification to remove fines and coarse particles and to produce liquid-filled microelements having a density of 800 to 1500 g/liter; and, forming the CMP polishing layer by (i) converting the classified liquid-filled microelements into gas-filled microelements by heating them, then mixing them with a liquid polymer matrix forming material and casting or molding the resulting mixture to form a polymeric pad matrix, or (ii) combining the classified liquid-filled microelements directly with the liquid polymer matrix forming material, and casting or molding.Type: GrantFiled: May 1, 2017Date of Patent: December 13, 2022Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.Inventors: Bainian Qian, George C. Jacob, Andrew Wank, David Shidner, Kancharla-Arun K. Reddy, Donna Marie Alden, Marty W. DeGroot
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Patent number: 11524339Abstract: A cutting tool incudes a substrate and a coating that coats a surface of the substrate, the coating including a multilayer structure layer composed of at least one layer A and at least one layer B alternately deposited from a side closer to the substrate toward a side closer to a surface, the layer A having an average composition of AlxCr(1-x)N, the layer B being composed of TiyAlzSi(1-y-z)N, the layer A being composed of a domain region and a matrix region, the domain region having a composition ratio of Cr larger than that of Cr of the matrix region, wherein x has a range of 0.5?x?0.8, y has a range of 0.5?y<0.71, z has a range of 0.29?z<0.5, and 1?y?z has a range of 0<1?y?z?0.1.Type: GrantFiled: June 26, 2019Date of Patent: December 13, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Keizo Tanaka, Shinya Imamura, Haruyo Fukui
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Patent number: 11518920Abstract: A slurry containing abrasive grains and a liquid medium, in which the abrasive grains include first particles and second particles in contact with the first particles, a particle size of the second particles is smaller than a particle size of the first particles, the first particles contain cerium oxide, the second particles contain a cerium compound, and in a case where a content of the abrasive grains is 0.1% by mass, an absorbance for light having a wavelength of 380 nm in a liquid phase obtained when the slurry is subjected to centrifugal separation for 5 minutes at a centrifugal acceleration of 5.8×104 G exceeds 0.Type: GrantFiled: July 22, 2019Date of Patent: December 6, 2022Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Tomoyasu Hasegawa, Tomohiro Iwano, Takaaki Matsumoto
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Patent number: 11504823Abstract: Articles and methods regarding the making and use of low-shedding nonwoven abrasive articles, such as abrasive wheels and hand pads, that have a low shed rate and achieve a high grind ratio. The abrasive articles comprise a blend of a plurality of primary abrasive particles and a plurality of reinforcing abrasive particles that is disposed on a nonwoven web substrate. The primary abrasive particles have an average particle size equal to or larger than the average fiber diameter of the substrate fibers, and the reinforcing abrasive particles have an average particle size smaller than the average fiber diameter.Type: GrantFiled: March 29, 2019Date of Patent: November 22, 2022Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Hooman Amid, Shyiguei Hsu, Fernando J. Ramirez, Karen Judith Sandoval Herrera, Ying Cai
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Patent number: 11505730Abstract: Various embodiments disclosed relate to an abrasive article (10). The abrasive article (10 includes a backing (12) defining a major surface. The abrasive article (10) includes an abrasive layer including a plurality of tetrahedral abrasive particles (16) attached to the backing (12). The tetrahedral abrasive particles (16) include four faces joined by six edges terminating at four vertices (40, 42, 44, 46). Each one of the four faces contacts three of the four faces, and a major portion of the tetrahedral abrasive particles (16) have at least one of the vertices (40, 42, 44, 46) oriented in substantially a same direction.Type: GrantFiled: May 11, 2018Date of Patent: November 22, 2022Assignee: 3M Innovative Properties CompanyInventors: Laura M. Lara Rodriguez, Chainika Jangu, Scott R. Culler, Negus B. Adefris, Gregory S. Mueller, Jon T. Schwartz, Brian G. Koethe, Robinette S. Alkhas, Ronald D. Apple, Ernest L. Thurber
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Patent number: 11504783Abstract: An abrasive article comprising a substrate having an elongated body and abrasive particles attached to the elongated body, the content of the abrasive particles oscillates along the length of the body between a minimum and maximum value, and the minimum content is greater than 0.Type: GrantFiled: September 28, 2018Date of Patent: November 22, 2022Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Maureen A. Brosnan, Joseph L. Citrone, Steffi Kaminski, Charles W. Bleakney, IV, Yinggang Tian, Ankit Thakur
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Patent number: 11492526Abstract: A slurry containing abrasive grains and a liquid medium, in which the abrasive grains include first particles and second particles in contact with the first particles, the first particles contain cerium oxide, the second particles contain a cerium compound, and in a case where a content of the abrasive grains is 2.0% by mass, a BET specific surface area of a solid phase obtained when the slurry is subjected to centrifugal separation for 30 minutes at a centrifugal acceleration of 1.1×104 G is 24 m2/g or more.Type: GrantFiled: September 25, 2018Date of Patent: November 8, 2022Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Tomoyasu Hasegawa, Tomohiro Iwano, Takaaki Matsumoto, Tomomi Kukita