Patents Examined by Dean Mazzola
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Patent number: 11628494Abstract: A composition including a three-dimensional metal printing powder; an organic polymeric additive on at least a portion of an external surface of the three-dimensional metal printing powder; and optionally, an inorganic additive on at least a portion of an external surface of the three-dimensional metal printing powder. A process for preparing a three-dimensional metal printing powder having an organic polymeric additive disposed thereon. A process for employing the three-dimensional metal printing powder including selective laser sintering.Type: GrantFiled: March 29, 2019Date of Patent: April 18, 2023Assignee: Xerox CorporationInventors: Richard P. N. Veregin, Karen A. Moffat
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Patent number: 11623274Abstract: The present invention provides a metal foam production method that enables a foaming process to be performed at low cost and enables controlling of the shape of metal foam. According to the present invention, a mold that transmits light and a precursor prepared by mixing a metal with a foaming agent are used, and a metal foam is produced by irradiating the precursor with a light transmitted through the mold to thereby heat and foam the precursor so as to obtain a metal foam, while controlling the shape of the metal foam by the mold.Type: GrantFiled: July 2, 2018Date of Patent: April 11, 2023Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Yoshihiko Hangai, Kenji Amagai
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Patent number: 11618516Abstract: An example bushing has three portions along its radial direction including an inner portion most proximal to a central hole of the bushing, an outer portion most distal from the center hole, and a core portion between the inner portion and the outer portion. The core portion has a hardness that is less than the hardness of the inner portion or the outer portion of the bushing. The bushing may be formed using high carbon steel, which in some cases may be spheroidal cementite crystal structure. A rough bushing may be formed using the high carbon steel, followed by a direct hardening process, and an induction hardening process on the inner surface most proximal to the central hole of the bushing. The induction hardening on the inner surface may harden the outer portion while tempering the core portion of the bushing.Type: GrantFiled: September 26, 2019Date of Patent: April 4, 2023Assignee: Caterpillar Inc.Inventors: Chandrasen Rameshlal Rathod, Roger Lee Recker, Robert Jason Pickerill, Scott E. Keele, Matthew Thomas Kiser
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Patent number: 11612933Abstract: A method for preparing a metal foam is provided which can freely control characteristics, such as pore size and porosity, of the metal foam, prepare the metal foam in the form of films or sheets which have conventionally been difficult to produce, particularly the form of thin films or sheets as well, and prepare a metal foam having excellent other physical properties such as mechanical strength. It is also possible to efficiently form a structure in which the metal foams as above are integrated with good adhesive force on a metal base material.Type: GrantFiled: July 6, 2018Date of Patent: March 28, 2023Assignee: LG CHEM, LTD.Inventors: So Jin Kim, Dong Woo Yoo, Jin Kyu Lee
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Patent number: 11613795Abstract: There is provided a cobalt-based alloy product comprising: in mass %, 0.08-0.25% C; 0.1% or less B; 10-30% Cr; 5% or less Fe and 30% or less Ni, the total amount of Fe and Ni being 30% or less; W and/or Mo, the total amount of W and Mo being 5-12%; at least one of Ti, Zr, Hf, V, Nb and Ta, the total amount of Ti, Zr, Hf, V, Nb and Ta being 0.5-2%; 0.5% or less Si; 0.5% or less Mn; 0.003-0.04% N; and the balance being Co and impurities. The product is a polycrystalline body of matrix phase crystal grains. In the matrix phase crystal grains, post-segregation cells with an average size of 0.13-2 ?m are formed, wherein components constituting an MC type carbide phase comprising Ti, Zr, Hf, V, Nb and/or Ta are segregated along boundary regions of the post-segregation cells.Type: GrantFiled: March 7, 2019Date of Patent: March 28, 2023Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yuting Wang, Shinya Imano, Shigenobu Eguchi
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Patent number: 11607734Abstract: Methods for the manufacture of fine metal powders from metal carboxylate compounds such as metal oxalate compounds. The method includes decomposing particulates of the metal oxalate compound by heating to a decomposition temperature in the presence of a dilute hydrogen gas to decompose the metal oxalate compound, and forming a fine metal powder by heating to a higher refining temperature to remove contaminants from the metal powder. The method may include the conversion of a non-oxalate metal compound to a hydrated metal oxalate and the dehydration of the hydrated metal oxalate before decomposition to the metal. The method is applicable to the production of a wide variety of metals, and is particularly applicable to the production of rare earth metals of high purity and fine particle size.Type: GrantFiled: May 30, 2019Date of Patent: March 21, 2023Assignee: HELA NOVEL METALS LLCInventor: Henry W. Kasaini
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Patent number: 11608545Abstract: A conductive supporting member includes an outer portion that includes a Cu matrix phase and a second phase dispersed in the Cu matrix phase and containing a Cu—Zr compound and that has an alloy composition represented by Cu-xZr (x is atomic % of Zr and 0.5?x?16.7 is satisfied) and an inner portion that is present on an inner side of the outer portion, is formed of a metal containing Cu, and has higher conductivity than the outer portion.Type: GrantFiled: April 25, 2019Date of Patent: March 21, 2023Assignees: NGK Insulators, Ltd., Tohoku UniversityInventors: Takashi Goto, Hirokazu Katsui, Naokuni Muramatsu, Takanari Nakajima
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Patent number: 11602791Abstract: A process for additive manufacturing of a metal alloy material is provided that includes: a) providing a feedstock powder comprising base powder particles with nanoparticles attached to surfaces of the base powder particles; b) providing an additive manufacturing system with a laser power source relatively movable at a scan speed; c) wherein the additive manufacturing system has a process window for the feedstock powder; and d) exposing the feedstock powder to a predetermined power input from the laser power source at a predetermined scan speed to produce the metal alloy material. The concentration by volume of nanoparticles within the feedstock powder is such that independent first and second microstructures may be produced within the metal alloy material.Type: GrantFiled: September 14, 2018Date of Patent: March 14, 2023Assignee: Raytheon Technologies CorporationInventors: John A. Sharon, Paul Sheedy, Ranadip Acharya, Vijay Narayan Jagdale
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Patent number: 11591683Abstract: There is provided a method of treating a nickel base super alloy (NiSa) article. First, the NiSa article having fine grains is obtained. The NiSa article has a uniform distribution of the fine grains and substantially uniform mechanical properties throughout. One or more regions within the NiSa article are mechanically deformed. Then, the NiSa article is heat treated to obtain coarse grains in the one or more regions, the coarse grains having a size that is larger than that of the fine grains of the NiSa article outside of the one or more regions.Type: GrantFiled: February 18, 2020Date of Patent: February 28, 2023Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Thomas Georges, Orlando Scalzo, Marc Lorenzo Campomanes
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Patent number: 11590568Abstract: Disclosed herein are embodiments of methods, devices, and assemblies for processing feedstock materials using microwave plasma processing. Specifically, the feedstock materials disclosed herein pertains to scrap materials, dehydrogenated or non-hydrogenated feed material, recycled used powder, and gas atomized powders. Microwave plasma processing can be used to spheroidize and remove contaminants. Advantageously, microwave plasma processed feedstock can be used in various applications such as additive manufacturing or powdered metallurgy (PM) applications that require high powder flowability.Type: GrantFiled: December 16, 2020Date of Patent: February 28, 2023Assignee: 6K Inc.Inventors: Sunil Bhalchandra Badwe, Scott Joseph Turchetti, Makhlouf Redjdal
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Patent number: 11583920Abstract: An example of a method, for three-dimensional (3D) printing, includes applying a build material and patterning at least a portion of the build material. The patterning includes selectively applying a wetting amount of a binder fluid on the at least the portion of the build material and subsequently selectively applying a remaining amount of the binder fluid on the at least the portion of the build material. An area density in grams per meter square meter (gsm) of the wetting amount ranges from about 2 times less to about 30 times less than area density in gsm of the remaining amount.Type: GrantFiled: October 12, 2017Date of Patent: February 21, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek Kasperchik, Mohammed S. Shaarawi, James McKinnell
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Patent number: 11577343Abstract: A lead-free solder alloy may comprise tin, silver, copper, bismuth, cobalt, and antimony. The alloy may further comprise nickel. The silver may be present in an amount from about 2.0% to 2.8% by weight of the solder. The copper may be present in an amount from about 0.2% to 1.2% by weight of the solder. The bismuth may be present in an amount from about 0.0% to about 5.0% by weight of the solder. In some embodiments, the bismuth may be present in an amount from about 1.5% to 3.2% by weight of the solder. The cobalt may be present in an amount from about 0.001% to about 0.2% by weight of the solder. The antimony may be present in an amount between about 0.0% to about 0.1% by weight of the solder. The balance of the solder is tin.Type: GrantFiled: June 28, 2018Date of Patent: February 14, 2023Assignee: ALPHA ASSEMBLY SOLUTIONS INC.Inventors: Md Hasnine, Lik Wai Kho
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Patent number: 11572609Abstract: Metallic matrix composites include a high strength titanium aluminide alloy matrix and an in situ formed aluminum oxide reinforcement. The atomic percentage of aluminum in the titanium aluminide alloy matrix can vary from 40% to 48%. Included are methods of making the metallic matrix composites, in particular, through the performance of an exothermic chemical reaction. The metallic matrix composites can exhibit low porosity.Type: GrantFiled: May 4, 2017Date of Patent: February 7, 2023Assignee: PARKER LODGE HOLDINGS LLCInventor: Scott Richard Holloway
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Patent number: 11529679Abstract: A dust core contains a powder of a crystalline magnetic material powder and a powder of an amorphous magnetic material. The sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 83 mass percent or more. The mass ratio of the content of the crystalline magnetic material powder to the sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 20 mass percent or less. The median diameter D50 of the amorphous magnetic material powder is greater than or equal to the median diameter D50 of the crystalline magnetic material powder.Type: GrantFiled: September 22, 2017Date of Patent: December 20, 2022Assignee: Alps Alpine Co., Ltd.Inventors: Kinshiro Takadate, Hisato Koshiba, Shokan Yamashita
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Patent number: 11527356Abstract: A method for producing a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth magnet and a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth magnet produced thereby is disclosed. More particularly, a method for producing a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth sintered magnet having a reduced content of a heavy rare earth element is disclosed, in which a hydrogen compound of a heavy rare earth is mainly used as a diffusion material in the production of the grain-boundary-diffused magnet so that a product having uniform and stable quality can be produced. The coercive force of the magnet can be increased while minimizing the amount of heavy rare earth used in the production of the grain-boundary-diffused magnet, by solving the problem that the heavy rare earth is not uniformly diffused into the magnet, and a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth magnet produced thereby.Type: GrantFiled: June 14, 2019Date of Patent: December 13, 2022Assignee: STAR GROUP IND. CO., LTD.Inventors: Koon Seung Kong, Dong Hwan Kim
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Patent number: 11511338Abstract: Described herein are compositions, methods, and systems for printing metal three-dimensional objects. In an example, described is a composition for three-dimensional printing comprising: a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 ?m to about 250 ?m; and a binder fluid comprising: an aqueous liquid vehicle, and latex polymer particles dispersed in the aqueous liquid vehicle, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm.Type: GrantFiled: February 23, 2018Date of Patent: November 29, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek Kasperchik, David Michael Ingle, Cory J Ruud
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Patent number: 11492691Abstract: A method of case hardening a titanium part, including placing the titanium part within a chamber; evacuating or purging the chamber; heating the titanium part placed within the chamber; introducing a gas containing cyanogen into the chamber; and exposing the titanium part placed within the chamber to the introduced gas containing cyanogen.Type: GrantFiled: July 25, 2019Date of Patent: November 8, 2022Assignee: THE BOEING COMPANYInventor: Joseph M. Greene
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Patent number: 11473168Abstract: A method for recovery of platinum group metals from a spent catalyst is described. The method includes crushing the spent catalyst to obtain a catalyst particulate material including particles having a predetermined grain size. The method includes subjecting the catalyst particulate material in the reaction zone at a predetermined temperature for a predetermined time period in contact with solid chlorine-containing material and solid silicon-containing material to obtain volatile platinum group metal-containing chloride product, and cooling to convert the product into solid phase platinum group metal-containing materials.Type: GrantFiled: October 30, 2017Date of Patent: October 18, 2022Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Igor Lubomirsky, Valery Kaplan, Ilya Bronshtein
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Patent number: 11458536Abstract: A method for producing a metal powder provided on the surface thereof with a glassy thin film, wherein a glassy substance is produced in the vicinity of the surface of the metal powder by spray pyrolysis from a solution that contains a thermally decomposable metal compound and a glass precursor that produces a glassy substance that does not form a solid solution with the metal produced from the metal compound by thermal decomposition, so as to form the metal powder provided on the surface thereof with the glassy thin film. The metal includes a base metal as a major component, and the solution contains 5 to 30 mass %, as the mass % with reference to the overall solution, of a reducing agent that is soluble in the solution and exhibits a reducing activity during the aforementioned step of heating.Type: GrantFiled: November 9, 2017Date of Patent: October 4, 2022Assignee: SHOEI CHEMICAL INC.Inventors: Mineto Iwasaki, Tetsuya Kimura
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Patent number: 11447842Abstract: A method for manufacturing a high-strength steel bar can include the steps of: reheating a steel slab at a temperature ranging from 1000° C. to 1100° C., the steel slab including a certain amount of carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), copper (Cu), nickel (Ni), molybdenum (Mo), aluminum (Al), vanadium (V), nitrogen (N), antimony (Sb), tin (Sn), and iron (Fe) and other inevitable impurities, The method can further include finish hot-rolling the reheated steel slab at a temperature of 850° C. to 1000° C., and cooling the hot-rolled steel to a martensite transformation start temperature (Ms (° C.)) through a tempcore process.Type: GrantFiled: October 20, 2017Date of Patent: September 20, 2022Assignee: Hyundai Steel CompanyInventors: Jun Ho Chung, Won Hoe Kim, Jung Wook Park, Hyun Sub Kim