Patents Examined by Seth Dumbris
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Patent number: 11583960Abstract: The present invention relates to an article comprising a ceramic substrate (310) comprising a source of zirconium oxide; a metallic substrate (320); and a braze joint disposed between the ceramic substrate and the metallic substrate. The braze joint comprises (i) a gold rich phase (330) interfacing against a surface of the ceramic substrate. The gold rich phase comprises a refractory metal selected from the group consisting of molybdenum, tungsten, niobium, tantalum and combinations thereof; and (ii) a second metallic phase (340) comprising a metal selected form the group consisting of nickel, iron, vanadium, cobalt, chromium, osmium, tantalum or combinations thereof.Type: GrantFiled: September 24, 2020Date of Patent: February 21, 2023Assignee: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek, Vishwanath Sarkar
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Patent number: 11584693Abstract: There is provided a group III nitride laminate, including: a substrate comprised of silicon carbide; a first layer comprised of aluminum nitride and formed on the substrate; a second layer comprised of gallium nitride and formed on the first layer; and a third layer formed on the second layer and comprised of group III nitride having an electron affinity lower than that of the gallium nitride which is comprised in the second layer, the second layer having a thickness of less than 500 nm, the second layer containing iron at a concentration of less than 1×1017/cm3, and the second layer containing carbon at a concentration of less than 1×1017/cm3.Type: GrantFiled: June 19, 2020Date of Patent: February 21, 2023Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takeshi Tanaka, Ryota Isono
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Patent number: 11578246Abstract: Provided is anisotropic graphite for producing an anisotropic graphite composite having excellent thermal conduction property and excellent long-term reliability as a heat dissipating member. Given an X axis, a Y axis orthogonal to the X axis, and a Z axis perpendicular to a plane defined by the X axis and the Y axis, and a crystal orientation plane of the anisotropic graphite is parallel to an X-Z plane, and a specific number of holes each having a specific size are formed in at least one surface out of surfaces of the anisotropic graphite which are parallel to an X-Y plane.Type: GrantFiled: September 11, 2019Date of Patent: February 14, 2023Assignee: KANEKA CORPORATIONInventor: Makoto Kutsumizu
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Patent number: 11582869Abstract: A composite metal foil and a preparation method thereof are provided. The composite metal foil includes a carrier layer, a barrier layer, a striping layer, and a metal foil layer. The carrier layer, the barrier layer, the striping layer, and the metal foil layer are sequentially stacked, the barrier layer includes a metal bonding layer and a high-temperature resistant layer stacked, and the metal bonding layer is disposed between the carrier layer and the high-temperature resistant layer. The striping layer is disposed between the carrier layer and the metal foil layer so as to facilitate peeling of the carrier layer, and the barrier layer is disposed between the carrier layer and the metal foil layer so as to prevent the carrier layer and the metal foil layer from diffusing mutually to cause bonding at a high temperature, so that the carrier layer and the metal foil layer are easy to peel off.Type: GrantFiled: November 6, 2019Date of Patent: February 14, 2023Assignee: GUANGZHOU FANGBANG ELECTRONIC CO., LTD.Inventor: Zhi Su
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Patent number: 11572315Abstract: A thermal insulation member is directly or indirectly sandwiched between a first object and a second object and thereby suppresses or interrupts heat transfer between the first object and the second object. The thermal insulation member comprises: a first main surface opposed to the first object; and a second main surface positioned on the opposite side from the first main surface and opposed to the second object. The thermal insulation member has a porous structure of ceramic having pores. ZrO2 particles and different type material exist on surfaces of the ZrO2 particles form a skeleton of the porous structure. The different type material includes at least one selected out of SiO2, TiO2, La2O3, and Y2O3.Type: GrantFiled: February 22, 2019Date of Patent: February 7, 2023Assignee: NGK Insulators, Ltd.Inventors: Akinobu Oribe, Takahiro Tomita, Hiroharu Kobayashi
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Patent number: 11572626Abstract: A coated steel substrate has a steel substrate having a surface. A coating layer is atop the surface. The coating layer includes: aluminum activated by indium; and a ceramic binder. The coating also may comprise of multiple layers with different properties to facilitate the galvanic protection capability.Type: GrantFiled: September 15, 2020Date of Patent: February 7, 2023Assignee: Raytheon Technologies CorporationInventors: Lei Chen, Poulomi Sannigrahi
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Patent number: 11570890Abstract: A ceramic circuit substrate having high bonding performance and excellent thermal cycling resistance properties, wherein a ceramic substrate and a copper plate are bonded by a braze material containing Ag and Cu, at least one active metal component selected from Ti and Zr, and at least one element selected from among In, Zn, Cd, and Sn, wherein a braze material layer, after bonding, has a continuity ratio of 80% or higher and a Vickers hardness of 60 to 85 Hv.Type: GrantFiled: May 29, 2018Date of Patent: January 31, 2023Assignee: DENKA COMPANY LIMITEDInventors: Yuta Tsugawa, Kouji Nishimura, Yusaku Harada, Ryota Aono, Shoji Iwakiri
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Patent number: 11566338Abstract: The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorus layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, as well as to a method of producing such a layer system. The inventive layer system is capable to combine the good corrosion resistance of the nickel-phosphorus layer against sodium chloride with the protective power of the chromium layer from the trivalent plating process against magnesium and calcium salts, especially without the need for any post-treatment.Type: GrantFiled: November 6, 2020Date of Patent: January 31, 2023Assignee: MacDermid Enthone GmbHInventors: Andreas Konigshofen, Ronny Kiefer
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Patent number: 11560618Abstract: The present invention relates to a method for producing a multilayer film comprising aluminum, chromium, oxygen and nitrogen, in a vacuum coating chamber, the multilayer film comprising layers of type A and layers of type B deposited alternate one of each other, wherein during deposition of the multilayer film at least one target comprising aluminum and chromium is operated as cathode by means of a PVD technique and used in this manner as material source for supplying aluminum and chromium, and an oxygen gas flow and a nitrogen gas flow are introduced as reactive gases in the vacuum chamber for reacting with aluminum and chromium, thereby supplying oxygen and nitrogen for forming the multilayer film, characterized in that: —The A layers are deposited as oxynitride layers of Al—Cr—O—N by using nitrogen and oxygen as reactive gas at the same time, —The B layers are deposited as nitride layers of Al—Cr—N by reducing the oxygen gas flow and by increasing the nitrogen gas flow in order to use only nitrogen as reacType: GrantFiled: November 23, 2018Date of Patent: January 24, 2023Assignee: Oerlikon Surface Solutions AG, PfäffikonInventors: Robert Raab, Christian Martin Koller, Paul Heinz Mayrhofer, Mirjam Arndt, Jürgen Ramm
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Patent number: 11554992Abstract: The bonded ceramic assembly of the present disclosure includes a first substrate made of ceramic, a second substrate made of ceramic, and a bonding layer positioned between the first substrate and the second substrate. The bonding layer contains aluminum, at least one of calcium and magnesium, a rare earth element, silicon, and oxygen. Out of a total 100 mass % of all of the components making up the bonding layer, the bonding layer contains from 33 mass % to 65 mass % aluminum in terms of oxide, a total of from 27 mass % to 60 mass % calcium and magnesium in terms of oxide, and from 2 mass % to 12 mass % rare earth element in terms of oxide. The silicon content, in terms of oxide, of the surface of the bonding layer is greater than the silicon content, in terms of oxide, of the interior of the bonding layer.Type: GrantFiled: July 27, 2017Date of Patent: January 17, 2023Assignee: KYOCERA CorporationInventors: Kiyotaka Nakamura, Masayuki Moriyama
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Patent number: 11548067Abstract: An open-pored metal body, which is formed having a core layer (A) consisting of Ni, Co, Fe, Cu, Ag or an alloy formed having one of said chemical elements, wherein one of said chemical elements is present in the alloy at more than 25 at %, and a gradated layer (B) is formed on surfaces of the core layer (A), said gradated layer being formed by intermetallic phase or mixed crystals of Al, and a layer (C), which is formed having aluminum oxide, is formed on the gradated layer (B).Type: GrantFiled: June 18, 2019Date of Patent: January 10, 2023Assignees: ALANTUM EUROPE GMBH, FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Gunnar Walther, Tilo Buettner, Hans-Dietrich Boehm, Bernd Kieback, Thomas Weissgaerber, Arne Boden, Rene Poss, Tillmann Andreas, Robin Kolvenbach, Lars Torkuhl, Alexandra Gerstle
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Patent number: 11551838Abstract: A grain-oriented electrical steel sheet according to the present invention has a steel sheet surface provided with grooves. An average protrusion height of the surface protrusion extending along a longitudinal direction of the groove is more than 5 ?m and not more than 10 ?m. When the surface protrusion is viewed in a cross section including the longitudinal direction of the groove and a normal direction of the steel sheet surface, the surface protrusion includes specific portions each having a height of 50% or more with respect to a height of each peak point appearing on a profile line of the surface protrusion. In the longitudinal direction of the groove, the total length of the specific portions is a length of 30% or more with respect to an overall length of the surface protrusion.Type: GrantFiled: February 8, 2019Date of Patent: January 10, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Satoshi Arai, Hideyuki Hamamura, Shunsuke Okumura, Kimihiko Sugiyama
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Patent number: 11551839Abstract: A motor comprising a steel sheet used as a core material of the motor, wherein the steel sheet includes a composition including: by mass %, 0.010% or less of C; 2.0% to 7.0% of Si; 2.0% or less of Al; 0.05% to 1.0% of Mn; 0.005% or less of S; 0.005% or less of N; and balance Fe and inevitable impurities; the steel sheet includes a magnetic flux density changing area where a change ?B in magnetic flux density to a change ?H=50 A/m in a magnetic field, is equal to or higher than 0.50 T; a thickness of the steel sheet is 0.05 mm to 0.20 mm; and an eddy-current loss of the steel sheet, at 1000 Hz?1.0 T, is equal to or less than 0.55 of a total iron loss.Type: GrantFiled: March 20, 2019Date of Patent: January 10, 2023Assignee: JFE Steel CorporationInventors: Souichiro Yoshizaki, Yoshiaki Zaizen, Kunihiro Senda
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Patent number: 11545356Abstract: Provided is a polycrystalline ceramic substrate to be bonded to a compound semiconductor substrate with a bonding layer interposed therebetween, wherein at least one of relational expression (1) 0.7<?1/?2<0.9 and relational expression (2) 0.7<?3/?4<0.9 holds, where ?1 represents a linear expansion coefficient of the polycrystalline ceramic substrate at 30° C. to 300° C. and ?2 represents a linear expansion coefficient of the compound semiconductor substrate at 30° C. to 300° C., and ?3 represents a linear expansion coefficient of the polycrystalline ceramic substrate at 30° C. to 1000° C. and ?4 represents a linear expansion coefficient of the compound semiconductor substrate at 30° C. to 1000° C.Type: GrantFiled: April 5, 2017Date of Patent: January 3, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Keiichiro Geshi, Shigeru Nakayama, Masashi Yoshimura
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Patent number: 11542620Abstract: A steel sheet for a container according to the present invention includes: a base steel sheet; a metal chromium layer; and a chromium-containing layer, in which the metal chromium layer is located on at least one surface of the base steel sheet, the chromium-containing layer is located on the metal chromium layer and contains a granular trivalent chromium compound, or contains a granular trivalent chromium compound and granular metal chromium, the metal chromium layer and the chromium-containing layer are separately disposed in two layers on the base steel sheet, in the chromium-containing layer, an average particle size of the trivalent chromium compound and the metal chromium is 10 nm or more and 100 nm or less, and an adhesion amount of the chromium-containing layer is 1.0 mg/m2 or more and 100 mg/m2 or less in terms of a Cr content.Type: GrantFiled: February 8, 2019Date of Patent: January 3, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Yoshiaki Tani, Shigeru Hirano
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Patent number: 11542209Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix phase and gettering particles in the matrix phase. The gettering particles with an aspect ratio greater than one are aligned such that a maximum dimension of the gettering particles extends along an axis that is generally parallel to the substrate. The barrier layer includes a dispersion of diffusive particles in the matrix phase. A composite material and a method of applying a barrier layer to a substrate are also disclosed.Type: GrantFiled: February 7, 2020Date of Patent: January 3, 2023Assignee: Raytheon Technologies CorporationInventors: Richard Wesley Jackson, Michael R. Kracum, Xia Tang, James T. Beals
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Patent number: 11542579Abstract: The present disclosure relates to an iron-based prealloy powder having excellent strength and processability, and an iron-based alloy powder for powder metallurgy and a sinter-forged member using the same. The iron-based prealloy powder for powder metallurgy according to an embodiment of the present disclosure includes 0.5 to 5.0 wt % of Cu, 0.1 to 0.5 wt % of Mo, and a balance of Fe and other inevitable impurities. A Cu content (Cu %) and a Mo content (Mo %) satisfy the following Relational Equation (1): 0.3×Cu %+3×Mo %?2.7??(1).Type: GrantFiled: March 26, 2020Date of Patent: January 3, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, JFE STEEL CORPORATIONInventors: Hak Soo Kim, Kohsuke Ashizuka, Akio Kobayashi, Naomichi Nakamura, Masashi Fujinaga, Toshio Maetani, Hirofumi Enokido, Hisashi Sudo
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Patent number: 11542824Abstract: An article for high temperature service is presented herein. One embodiment is an article including a substrate having a silicon-bearing ceramic matrix composite; and a layer disposed over the substrate, wherein the layer includes silicon and a dopant, the dopant including aluminum. In another embodiment, the article includes a ceramic matrix composite substrate, wherein the composite includes a silicon-bearing ceramic and a dopant, the dopant including aluminum; a bond coat disposed over the substrate, where the bond coat includes elemental silicon, a silicon alloy, a silicide, or combinations including any of the aforementioned; and a coating disposed over the bond coat, the coating including a silicate (such as an aluminosilicate or rare earth silicate), yttria-stabilized zirconia, or a combination including any of the aforementioned.Type: GrantFiled: August 18, 2015Date of Patent: January 3, 2023Assignee: General Electric CompanyInventors: Krishnan Lal Luthra, Julin Wan, Reza Sarrafi-Nour
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Patent number: 11545286Abstract: A crystalline Fe-based alloy powder composed of Fe-based alloy particles containing, within a structure thereof, nanocrystal grains having an average grain size of 30 nm or less, and in which d50, which is a particle diameter corresponding to a cumulative frequency of 50% by volume, is from 3.5 ?m to 35.0 ?m in a cumulative distribution curve that is obtained by laser diffractometry and that shows the relationship between the particle diameter and the cumulative frequency from the small particle diameter side, and a ratio of Fe-based alloy particles having a particle diameter of 2 ?m or less to the total of the Fe-based alloy particles, which is determined by laser diffractometry, is from 0% by volume to 8% by volume.Type: GrantFiled: August 6, 2018Date of Patent: January 3, 2023Assignee: HITACHI METALS, LTD.Inventors: Tetsuro Kato, Nobuhiko Chiwata, Motoki Ohta, Shin Noguchi, Shuji Yamanaka
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Patent number: 11541516Abstract: A tool bit with a surface layer metallurgically bonded on a substrate layer using electrospark deposition (ESD) that allows the tool bit to reduce camout and engage a fastener head for one-handed starting and removal. The surface layer has a rougher finish, compared to conventional tool bits, and therefore better grips engagement surfaces of a mating recess of the fastener during use. The reduction of camout provides greater durability to the tool bit and resists erosion and wear of the engagement surfaces of the fastener.Type: GrantFiled: September 25, 2019Date of Patent: January 3, 2023Assignee: Snap-on IncorporatedInventor: Ottoleo Kuter-Arnebeck