Patents Examined by Archene A. Turner
  • Composite sintered body cutting tool and surface coated composite sintered body cutting tool
    Patent number: 10569338
    Abstract: A composite sintered body cutting tool is made of a composite sintered body comprising a TiCN-based cermet layer; and a WC-based cemented carbide layer. The angle between the rake face and the flank face of the cutting tool is 90°. The rake face including a cutting edge of the cutting tool is constituted from the WC-based cemented carbide layer, in which 4 to 17 mass % of an iron group metal component and 75 mass % or more of W are included; and a major hard phase component is WC. The thickness of the WC-based cemented carbide layer is 0.05 to 0.3 times the thickness of the composite sintered body. The TiCN-based cermet layer is constituted from a single layer of a TiCN-based cermet layer, including at least, 4 to 25 mass % of an iron group metal component, less than 15 mass % of W, 2 to 15 mass % of Mo, 2 to 10 mass % of Nb and 0.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: February 25, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Makoto Igarashi, Akihiro Murakami
  • Coated steel piston ring
    Patent number: 10563764
    Abstract: A piston ring is formed from a steel substrate consisting of the carbon in a range of 0.80-0.95 wt. %, silicon in a range of 0.30-0.55 wt. %, manganese in a range of 0.25-0.5 wt. %, phosphorus in a range of up to 0.04 wt. %, sulfur in a range of up to 0.04 wt. %, chromium in a range of 17-18 wt. %, molybdenum in a range of 0.70-1.25 wt. %, vanadium in a range of 0.05-0.15%, the remainder iron. The ring has been through hardened and tempered so that it has a hardness of 46-54 HRC. A coating is then applied via PVD or other suitable methods onto the ring surface to create the finished piston ring.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 18, 2020
    Assignee: MAHLE International GmbH
    Inventors: Alexander Cooper, Robert Piccard, Thomas Smith, Thomas Stong
  • Surface-coated cutting tool having excellent chipping resistance and wear resistance
    Patent number: 10556273
    Abstract: In a surface-coated cutting tool, an A layer made of an (Al1-xTix)N layer (0.35?x?0.6 by an atom ratio) and a B layer made of a (Al1-y-zTiySiz)N layer (0.35?y?0.6 and 0.01?z?0.1 by an atom ratio) are layered on a surface of a tool body in which at least a cutting edge is made of a cBN sintered body. A layer thickness ratio of the A layer and the B layer (tB/tA) is 2 to 5, an X-ray diffraction intensity ratio I(200)/I(111) as the entire hard coating layer is more than 3 and 12 or less, a full width at half maximum of a peak of I(200) is 0.3 to 1.0, the IA(200)/IA(111) of the A layer is 2 to 10, and a full width at half maximum of the peak of the IA(200) is 0.3 to 1.0.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 11, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Shun Sato, Masakuni Takahashi
  • Cutting tool
    Patent number: 10526712
    Abstract: A cutting tool comprises a base material which includes particles including a tungsten carbide (WC) as a main component, a binder phase including cobalt (Co) as a main component, and particles including a carbide or a carbonitride of at least one selected from the group consisting of Group 4a, 5a, and 6a elements, or a solid solution thereof; and a hard film formed on the base material, wherein the hard film comprises at least an alumina layer, a cubic phase free layer (CFL), in which the carbide or the carbonitride is not formed, is formed from a surface of the base material to a depth of 10 ?m to 50 ?m, and a Co content of a surface of the CFL is 80% or more of a maximum Co content of the CFL.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 7, 2020
    Assignee: KORLOY INC.
    Inventors: Yong-hyun Kim, Jung-wook Kim, Sung-Gu Lee, Sun-Yong Ahn
  • Low friction wear resistant graphene films
    Patent number: 10486195
    Abstract: A low friction wear surface with a coefficient of friction in the superlubric regime including graphene and nanoparticles on the wear surface is provided, and methods of producing the low friction wear surface are also provided. A long lifetime wear resistant surface including graphene exposed to hydrogen is provided, including methods of increasing the lifetime of graphene containing wear surfaces by providing hydrogen to the wear surface.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 26, 2019
    Assignee: UChicago Argonne, LLC
    Inventors: Anirudha V. Sumant, Diana Berman, Ali Erdemir
  • Piston ring and internal combustion engine
    Patent number: 10487405
    Abstract: A piston ring may include a stainless steel base having between 8% and 15% by weight of chromium, together with other elements and impurities, and having a hardness between 350 HV and 420 HV. The piston ring may also include a superficial nitrided layer having a depth of no more than 60 ?m and an average hardness measured upon the surface exceeding 800 HV. The nitrided layer may include a plurality of nitride particles, which may have a maximum size of 5 ?m and may be distributed over between 4% and 8% of an area of the nitrided layer.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 26, 2019
    Assignees: Mahle Metal Leve S/A, Mahle International GmbH
    Inventor: Gisela Ablas Marques
  • Gas-barrier plastic molded product and method for manufacturing same
    Patent number: 10487397
    Abstract: An object of the present disclosure is to provide a gas barrier plastic molded body which is excellent in gas barrier properties and transparency and a method for producing the same. A gas barrier plastic molded body 90 according to the present disclosure includes a plastic molded body 91 and a gas barrier thin film 92 provided on a surface of the plastic molded body 91, and in the gas barrier plastic molded body, the gas barrier thin film 92 contains silicon (Si), carbon (C), and oxygen (O) as constituent elements and has a region, in a which a main peak is observed, at a peak appearance position of binding energy of Si—C when the gas barrier thin film is subjected to an X-ray photoelectron spectroscopic analysis under Condition (1). Condition (1): a measurement range is set to 95 to 105 eV.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: November 26, 2019
    Assignee: KIRIN HOLDINGS KABUSHIKI KAISHA
    Inventor: Hiroyasu Tabuchi
  • Method of manufacturing diamond substrate, diamond substrate, and diamond composite substrate
    Patent number: 10487395
    Abstract: A method of manufacturing a diamond substrate includes: forming an ion implantation layer at a side of a main surface of a diamond seed substrate by implanting ions into the main surface of the diamond seed substrate; producing a diamond structure by growing a diamond growth layer by a vapor phase synthesis method on the main surface of the diamond seed substrate, after implanting the ions; and performing heat treatment on the diamond structure. The performed heat treatment causes the diamond structure to be separated along the ion implantation layer into a first structure including the diamond seed substrate and failing to include the diamond growth layer, and a diamond substrate including the diamond growth layer. Thus, the method of manufacturing a diamond substrate is provided that enables a diamond substrate with a large area to be manufactured in a short time and at a low cost.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: November 26, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takuji Okahisa, Yoshiyuki Yamamoto, Yoshiki Nishibayashi, Natsuo Tatsumi
  • Sliding element
    Patent number: 10487730
    Abstract: A sliding element, for example a piston ring for an internal combustion engine, may include a sliding face, an adhesive layer disposed on the sliding face, and a coating disposed over the adhesive layer. The coating may be composed of an amorphous carbon material. The coating may have a ratio between sp3 bonds and sp2 bonds that indicates a predominance of sp2 bonds. The coating may have a roughness profile including a value of Rpk of ?0.15 ?m and a value of Rz of 0.7?Rz?1.5 ?m.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 26, 2019
    Assignees: Mahle Metal Leve S/A, Mahle International GmbH
    Inventors: Juliano Avelar Araujo, Eliel Dos Santos Paes
  • Coated cutting tool
    Patent number: 10471516
    Abstract: A coated cutting tool comprises a substrate and a coating layer and the coating layer comprises a first laminate structure and a second laminate structure and each of the first laminate structure and the second laminate structure is laminated in an alternating manner and the number of laminations is three or more and one compound layer and other compound layer of the compound layers of two kinds in the each of the first laminate structure and the second laminate structure has a specific composition and the first laminate structure and each of the second laminate structure satisfies a specific condition and an average thickness of each of the layers constituting the first laminate structure and the second laminate structure and an average thickness of the coating layer is respectively a specific one.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: November 12, 2019
    Assignee: TUNGALOY CORPORATION
    Inventor: Shigeki Tanaka
  • Surface-coated cutting tool
    Patent number: 10456844
    Abstract: In a surface-coated cutting tool, a hard coating layer composed of a lower layer and an upper layer is deposited on a surface of a tool body made of a WC-based cemented carbide or a TiCN-based cermet. The lower layer has at least one Ti compound layer made of a TiCN layer and the upper layer is made of an ?-type Al2O3 layer. In a case where, regarding Al2O3 crystal grains of the entire upper layer, a constituent atom-sharing lattice point distribution is measured, a highest peak is present in ?3, and a distribution ratio of ?3 is 70% or more. A ratio of a ?3-coincidence grain boundary continuing from an interface between the lower layer and the upper layer to an outermost surface of the upper layer is 60% or more of a ?3-coincidence grain boundary of the upper layer.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: October 29, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Masaki Okude, Kenji Yamaguchi
  • Surface-coated cutting tool in which hard coating layers exhibits excellent chipping resistance
    Patent number: 10456841
    Abstract: A coated tool includes a hard coating layer that is formed with a (Ti,Al)(C,N) layer on its surface, the layer including an upper layer where a periodic compositional variation in Ti and Al is present in crystal grains having an NaCl type face-centered cubic structure, and a lower layer where a periodic compositional variation in Ti and Al is not present. The upper layer has a high Al amount, while the lower layer has a low Al amount. A value of I(200)/I(111) of the upper layer is greater than 10 and that of the lower layer is less than 3. The lower layer has a composition inclined structure where the Al amount increases from a tool body side towards an upper layer side. The lower layer contains multiple layers, where the Al amount of each layer can increase from the tool body side towards the upper layer side.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: October 29, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Kenichi Sato, Sho Tatsuoka, Kenji Yamaguchi
  • Piston ring and method for manufacturing same
    Patent number: 10458548
    Abstract: Provided is a piston ring having excellent low-friction properties and abrasion resistance manufactured without the need for precision control using an ordinary film formation device that does not have a special function.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 29, 2019
    Assignees: NIPPON ITF, INC., Honda Motor Co., Ltd.
    Inventors: Takehiko Ooshiro, Koji Miyake, Masanori Tsujioka, Satoshi Yoshida
  • Surface-coated cutting tool in which hard coating layer exhibits excellent chipping resistance
    Patent number: 10456842
    Abstract: A surface-coated cutting tool has a hard coating layer on a tool body. The hard coating layer includes a (Ti1?xAlx)(CyN1?y) layer (the average amount Xavg of Al and the average amount Yavg of C satisfy 0.60?Xavg?0.95 and 0?Yavg?0.005). Crystal grains having an NaCl type face-centered cubic structure in the layer have {111} orientation, a columnar structure in which the average grain width of the individual crystal grains having an NaCl type face-centered cubic structure is 0.1 ?m to 2.0 ?m and the average aspect ratio is 2 to 10 is included, and in the individual crystal grains having an NaCl type face-centered cubic structure, a periodic compositional variation in Ti and Al in the composition formula: (Ti1?xAlx)(CyN1?y) is present and the difference between the average of maximum values of x and the average of minimum values thereof is 0.03 to 0.25.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 29, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Sho Tatsuoka, Kenichi Sato, Kenji Yamaguchi
  • Coating for metal components, method for coating a metal component, piston for internal combustion engines and motor vehicle
    Patent number: 10458361
    Abstract: An abrasion-resistant and friction-reduced coating for metal components is provided. The coating includes an inner layer, an intermediate layer and an outer layer. The inner layer is intended to be applied to the metal component and has at least one layer selected from: a metal layer, a metal-carbide layer, a metal-nitride layer, a metalcarbide- nitride layer and a metal-containing hydrocarbon layer. The intermediate layer includes at least one layer of amorphous carbon and the outer layer includes a W—C:H layer or a a-C:H* layer. A maximum layer thickness of the coating is at most 5 ?m. The coating is suitable in particular as a piston coating for use in internal combustion engines.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 29, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andrea Procopio, Nigel Stothard, Stefan Ungar
  • Sliding member and method for producing same
    Patent number: 10451184
    Abstract: A sliding member includes: a base; a chromium-based hard chromium plated layer formed on the surface of the base; a hard carbon layer that is mainly composed of carbon element and is formed on the hard chromium plated layer. The hydrogen concentration of the hard chromium plated layer is equal to or less than 150 mass ppm. A method for producing the sliding member involves heating the surface of the base on which the chromium-based hard chromium plated layer has been formed at a temperature of 250° C. or more so that the hydrogen concentration of the hard chromium plated layer is equal to or less than 150 mass ppm, and thereafter forming the hard carbon layer mainly composed of carbon element on the hard chromium plated layer.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 22, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tsuyoshi Higuchi, Yutaka Mabuchi, Hideaki Kamiyama, Katsuaki Ogawa
  • Piston ring for internal combustion engines
    Patent number: 10436324
    Abstract: A piston ring for an internal combustion engine may include a substantially annular base of a ferrous alloy upon which is applied a coating. The coating may have a first bonding layer and at least a first external layer or a second external layer deposited upon the first bonding layer up to a maximum of 100 micrometers in thickness of a plurality of sequentially deposited first and second external layers. The first external layer may include a nitride of a doped metal chemical element, a doping element being aluminum. The second external layer may include a nitride of the metal chemical element. The first external layer may have a thickness greater than at least once a thickness of the second external layer and less than ten times the thickness of the second external layer.
    Type: Grant
    Filed: April 17, 2016
    Date of Patent: October 8, 2019
    Assignees: Mahle Metal Leve S/A, Mahle International GmbH
    Inventors: Juliano Avelar Araujo, Paulo Jose Da Rocha Mordente, Robert R. Banfield
  • Coated cutting tool
    Patent number: 10428417
    Abstract: A coated cutting tool includes a body and a hard and wear resistant PVD coating on the body, wherein the body is made from a cemented carbide, cermet, ceramics, polycrystalline diamond or polycrystalline cubic boron nitride based materials. The coating includes a first (Ti,Al)-based nitride sub-coating and a second (Ti,Al)-based nitride sub-coating. The first (Ti,Al)-based nitride sub-coating can be a single layer, and the second (Ti,Al)-based nitride sub-coating can be a laminated structure, wherein the first (Ti,Al)-based nitride sub-coating includes a (Ti1-xAlx)Nz-layer where 0.1<x<0.4, 0.6<z<1.2, and wherein the second (Ti,Al)-based nitride sub-coating includes a (Ti1-x1-y1Alx1Cry1)Nz1 layer where 0.5<x1<0.75, 0.05<y1<0.2, 0.6<z1<1.2.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 1, 2019
    Assignee: Seco Tools AB
    Inventors: Jon Andersson, Mats Johansson Jöesaar, Stefan Larsson
  • Coating film, manufacturing method for same, and PVD device
    Patent number: 10428416
    Abstract: Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance (defect resistance) and peeling resistance. This coating film coats a substrate surface, wherein a hard carbon layer is formed extending in columns-shape perpendicular to the substrate when observed in a cross-sectional bright-field TEM image, the hard carbon layer is formed using a PVD method, and the ID/IG ratio is 1-6 when the hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 1, 2019
    Assignees: NIPPON ITF, INC., NIPPON PISTON RING CO., LTD.
    Inventors: Hideki Moriguchi, Tadashi Saito, Yoshikazu Tanaka, Tetsumi Arahi, Katsuaki Ogawa, Takahiro Okazaki, Hiroyuki Sugiura, Yoshihiro Ito
  • Cemented carbide articles and applications thereof
    Patent number: 10415119
    Abstract: In one aspect sintered cemented carbide articles are described herein which, in some embodiments, exhibit enhanced resistance to wear and thermal fatigue. Further, sintered cemented carbide articles described herein can tolerate variations in carbon content without formation of undesirable phases, including eta phase and/or free graphite (C-type porosity). Such tolerance can facilitate manufacturing and use of carbide grades where carbon content is not strictly controlled. A sintered cemented carbide body described herein comprises a hard particle phase including tungsten carbide and a metallic binder phase comprising at least one of cobalt, nickel and iron and one or more alloying additives, wherein the sintered cemented carbide has a magnetic saturation (MS) ranging from 0% to 73% and no eta phase.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 17, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Pankaj B. Trivedi, Pankaj Kumar Mehrotra