Patents Examined by Jophy S Koshy
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Patent number: 11904416Abstract: Provided are a solder alloy, a solder powder, a solder paste, and a solder joint having a low liquidus temperature and not too low solidus temperature. The solder alloy has an alloy composition of, by mass: Ag: 2.0 to 4.0%; Cu: 0.51 to 0.79%; and Bi: more than 4.0% and 8.0% or less, with the balance being Sn. The solder alloy has a liquidus temperature of less than 217° C.Type: GrantFiled: March 9, 2022Date of Patent: February 20, 2024Assignee: Senju Metal Industry Co., Ltd.Inventors: Yoshie Tachibana, Tomoki Sasaki, Norikazu Sakai, Yoshihiro Yamaguchi
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Patent number: 11891674Abstract: Disclosed are a high-strength multiphase steel tinned raw plate and a manufacturing method therefor, wherein the mass percentages of the components of the multiphase steel tinned raw plate are: 0.081%-0.14% of C, 0.2%-0.8% of Mn, 0.01%-0.09% of Al, 0.01%-0.03% of P, 0.002%-0.015% of N, also containing one or more than one of 0.001%-0.005% of B, 0.005%-0.05% of Cr, 0.001%-0.1% of Ti, 0.001%-0.2% of Nb, 0.005%-0.03% of Cu, 0.001%-0.008% of Mo, and the balance of Fe and other inevitable impurities; and satisfy: 0.21%?Mn+1.3 Cr+3.2 Mo+0.5 Cu?0.91%. The tinned raw plate has a structure comprising ferrite grains, pearlite, martensite and cementite particles, wherein the total volume fraction of the pearlite, martensite and cementite particles is 5%-20%, the volume fraction of the martensite is 1%-5%, and the martensite has a solid solution content of carbon of ?0.07%.Type: GrantFiled: August 28, 2018Date of Patent: February 6, 2024Assignee: BAOSHAN IRON & STEEL CO., LTD.Inventors: Fuliang Lian, Gaofei Liang, Hongxing Chen, Shunli Zhao, Bijun Ban, Xiujun Li, Gang Xu
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Patent number: 11890665Abstract: Provided is a metal gasket including, expressed in mass%, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.04% or less (including 0%), S: 0.01% or less (including 0%), Ni: 25.0-60.0%, Cr: 10.0-20.0%, either Mo or W alone, or both Mo+W/2: 0.05-5.0%, Al: more than 0.8% to 3.0% or less, Ti: 1.5-4.0%, Nb: 0.05-2.5%, V: 1.0% or less (including 0%), B: 0.001-0.015%, Mg: 0.0005-0.01%, S/Mg: 1.0 or less, N: 0.01% or less (including 0%), and O: 0.005% or less (including 0%), with the remainder being Fe and unavoidable impurities. The metal gasket has a metal structure in which a precipitate ?? phase having an average equivalent circle diameter of 25 nm or larger is not present within the austenite base.Type: GrantFiled: August 25, 2022Date of Patent: February 6, 2024Assignee: PROTERIAL, LTD.Inventors: Toshihiro Uehara, Junichi Nishida
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Patent number: 11891680Abstract: A steel material according to the present disclosure has a chemical composition consisting of, in mass %: C: 0.15 to 0.45%, Si: 0.05 to 1.00%, Mn: 0.01 to 1.00%, P: 0.030% or less, S: 0.0050% or less, Al: 0.005 to 0.100%, Cr 0.55 to 1.10%, Mo: 0.70 to 1.00%, Ti: 0.002 to 0.020%, V: 0.05 to 0.30%, Nb: 0.002 to 0.100%, B: 0.0005 to 0.0040%, N: 0.0100% or less, O: less than 0.0020%, and the balance being Fe and impurities, and satisfying Formula (1) described in the specification. A grain diameter of a prior-austenite grain is 15.0 ?m or less, and an average area of precipitate which is precipitated in a prior-austenite grain boundary is 12.5×10?3 ?m2 or less. A yield strength is 758 to 862 MPa.Type: GrantFiled: February 13, 2020Date of Patent: February 6, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Yohei Otome, Hiroki Kamitani, Atsushi Soma, Taro Oe, Nobuaki Komatsubara, Yuji Arai, Hideki Takabe
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Patent number: 11891679Abstract: A preparation method for high-strength and low-modulus ?-type Si-containing titanium alloy involves: preparing an alloy component with, in atomic percentage, 60-70% of Ti, 10-20% of Nb, 5-15% of Zr, 1-10% of Ta and 1-5% of Si and using sponge titanium, sponge zirconium, a tantalum-niobium intermediate alloy and silicon as raw materials, and then uniformly smelting the alloy components to obtain a solidified ingot; then, subjecting the resulting ingot to plastic deformation with a deformation temperature of 800-900° C. and a deformation rate of 60-80%, and water-quenching same to room temperature; and finally, heating the resulting test sample to a recrystallization temperature, maintaining the temperature for 1-4 h, and carrying out an annealing treatment and air-cooling same to room temperature to obtain the high-strength and low-modulus ?-type Si-containing titanium alloy. The resulting titanium alloy is more suitable for use as a medical implant material.Type: GrantFiled: November 15, 2017Date of Patent: February 6, 2024Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Yuanyuan Li, Weiwen Ye, Chao Yang, Fen Wang, Weiwen Zhang, Zhiyu Xiao
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Patent number: 11879164Abstract: The invention concerns a process suitable for the recovery of platinum group metals (PGM) present in PGM-bearing catalysts comprising silicon carbide (SiC). More particularly, the process for the recovery of PGM present in PGM-bearing catalysts comprising SiC, comprises the steps of preparing a metallurgical charge by mixing the PGM-bearing catalysts with an Fe-oxide compound in an amount sufficient to oxidize at least 65% of the SiC, and feeding the metallurgical charge and slag formers to a smelting furnace operating in conditions susceptible to form a liquid Fe-based bullion, which contains PGM, and a liquid slag. Good to excellent PGM yields are obtained.Type: GrantFiled: December 18, 2020Date of Patent: January 23, 2024Assignee: UMICOREInventors: Dirk Crauwels, Tim Van Rompaey, Hilke Verbruggen
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Patent number: 11881338Abstract: A soft magnetic alloy comprising an internal area having a soft magnetic type alloy composition including Fe and Co, a Co concentrated area existing closer to a surface side than the internal area and having a higher Co concentration than in the internal area, a SB concentrated area existing closer to the surface side than the Co concentrated area and having a higher concentration of at least one element selected from Si and B than in the internal area, and a Fe concentrated area including Fe existing closer to the surface side than the SB concentrated area; wherein a crystalized area ratio of the SB concentrated area represented by SSBcry/SSB and a crystalized area ratio of the Fe concentrated area represented by SFecry/SFe, satisfy a relation of (SSBcry/SSB)<(SFecry/SFe).Type: GrantFiled: February 15, 2022Date of Patent: January 23, 2024Assignee: TDK CORPORATIONInventors: Hironobu Kumaoka, Kazuhiro Yoshidome, Akito Hasegawa, Satoko Mori
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Patent number: 11872656Abstract: A core material has a core 12; a solder layer 16 made of a (Sn—Bi)-based solder alloy provided on an outer side of the core 12; and a Sn layer 20 provided on an outer side of the solder layer 16. The core contains metal or a resin. When a concentration ratio of Bi contained in the solder layer 16 is a concentration ratio (%)=a measured value of Bi (% by mass)/a target Bi content (% by mass), or a concentration ratio (%)=an average value of measured values of Bi (% by mass)/a target Bi content (% by mass), the concentration ratio is 91.4% to 106.7%. The thickness of the Sn layer 20 is 0.215% or more and 36% or less of the thickness of the solder layer 16.Type: GrantFiled: September 30, 2020Date of Patent: January 16, 2024Assignee: SENJU METAL INDUSTRY CO., LTD.Inventors: Shigeki Kondoh, Masato Tsuchiya, Hiroki Sudo, Hiroshi Okada, Daisuke Souma
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Patent number: 11858038Abstract: A process for the additive manufacture of a metallic and/or vitreous and/or ceramic component, a mixture of substrate particles and an at least two-phase binder is firstly provided. The mixture is preferably provided as composite particles, so that the substrate particles adhere to one another by the at least two-phase binder. The mixture is selectively melted layerwise by electromagnetic radiation so that a shaped part is additively produced. The shaped part is taken out from the mixture which has not been melted and the at least two-phase binder is subsequently removed, preferably successively. The process produces a microporous shaped part which after sintering leads to a component having a desired density and a desired mechanical and/or thermal stability.Type: GrantFiled: March 2, 2018Date of Patent: January 2, 2024Assignee: SKZ-KFE gGmbHInventors: Christian Fischer, Christian Staudigel
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Patent number: 11862369Abstract: Some variations provide a permanent-magnet structure comprising: a region having a plurality of magnetic domains and a region-average magnetic axis, wherein each of the magnetic domains has a domain magnetic axis that is substantially aligned with the region-average magnetic axis, and wherein the plurality of magnetic domains is characterized by an average magnetic domain size. Within the region, there is a plurality of metal-containing grains characterized by an average grain size, and each of the magnetic domains has a domain easy axis that is dictated by a crystallographic texture of the metal-containing grains. The region has a region-average easy axis based on the average value of the domain easy axis within that region. The region-average magnetic axis and the region-average easy axis form a region-average alignment angle that has a standard deviation less than 30° within the plurality of magnetic domains. Many permanent-magnet structures are disclosed herein.Type: GrantFiled: June 26, 2021Date of Patent: January 2, 2024Assignee: HRL Laboratories, LLCInventors: Brennan Yahata, Eric Clough, Christopher Henry, Amber Sucich, Darby Laplant, Tobias Schaedler
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Patent number: 11858072Abstract: A flux according to the present invention contains a rosin methyl ester in which the flux is a solid or solid-like flux at 25° C., and is used for an inside of a flux-cored solder or an exterior of a flux-coated solder.Type: GrantFiled: February 1, 2021Date of Patent: January 2, 2024Assignee: SENJU METAL INDUSTRY CO., LTD.Inventors: Yoko Kurasawa, Hiroaki Iseki, Kenta Nakajima
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Patent number: 11851726Abstract: A grain oriented electrical steel sheet includes the texture aligned with Goss orientation. In the grain oriented electrical steel sheet, when (?1 ?1 ?1) and (?2 ?2 ?2) represent deviation angles of crystal orientations measured at two measurement points which are adjacent on the sheet surface and which have an interval of 1 mm, the boundary condition BA is defined as |?2??1|?0.5°, and the boundary condition BB is defined as [(?2??1)2+(?2??1)2+(?2??1)2]1/2?2.0°, the boundary which satisfies the boundary condition BA and which does not satisfy the boundary condition BB is included.Type: GrantFiled: July 31, 2019Date of Patent: December 26, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Shuichi Nakamura, Yusuke Kawamura, Shingo Okada, Tomoaki Ito, Shinya Yano
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Patent number: 11846002Abstract: The high-strength steel sheet according to the present invention includes a specific chemical composition, a steel structure in which a total area fraction of martensite and bainite in a position of ¼ of a sheet thickness is 92% or more and 100% or less, the balance in a case where the total area fraction is not 100% contains retained austenite, and an area fraction of ferrite in a region extending up to 10 ?m in a sheet thickness direction from a surface is 10% or more and 40% or less, in which a tensile strength is 1320 MPa or more, and a Vickers hardness in a position of 15 ?m in the sheet thickness direction from the surface satisfies a specified formula.Type: GrantFiled: June 10, 2019Date of Patent: December 19, 2023Assignee: JFE STEEL CORPORATIONInventors: Shimpei Yoshioka, Yoshihiko Ono, Yuma Honda, Nobuyuki Nakamura
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Patent number: 11845128Abstract: A powder bed material can include from 80 wt % to 100 wt % metal particles having a D50 particle size distribution value from 4 ?m to 150 ?m. From 10 wt % to 100 wt % of the metal particles can be surface-activated metal particles having in intact inner volume and an outer volume with structural defects. The structural defects can exhibit an average surface grain density of 50,000 to 5,000,000 per mm2.Type: GrantFiled: June 8, 2018Date of Patent: December 19, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: John Samuel Dilip Jangam, Thomas Anthony, Krzysztof Nauka, Kristopher J. Erickson
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Patent number: 11846004Abstract: Disclosed herein is a light-gauge, ultra-high strength weathering steel pile for use as a steel foundation in structures such as, for example, solar arrangements. The light-gauge, ultra-high strength weathering steel pile comprises a thickness of 2.5 mm or less that has been cold roll formed into a steel pile having a web and a pair of opposing flanges, each having discontinuities formed therein. The steel pile further comprises a yield strength of between 700 and 1600 MPa, a tensile strength of between 1000 and 2100 MPa, and an elongation of between 1% and 10%.Type: GrantFiled: August 4, 2020Date of Patent: December 19, 2023Assignee: NUCOR CORPORATIONInventors: Brian Hansen Bogh, Kishlay Mishra, Tao Wang
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Patent number: 11839937Abstract: A lead-free solder alloy consisting essentially of: 32 mass % or more and 40 mass % or less of Bi; 0.1 mass % or more and 1.0 mass % or less of Sb; 0.1 mass % or more and 1.0 mass % or less of Cu; 0.001 mass % or more and 0.1 mass % or less of Ni; and a remainder of Sn with unavoidable impurities. The lead-free solder alloy further contains specific elements in amounts in predetermined ranges.Type: GrantFiled: April 10, 2020Date of Patent: December 12, 2023Assignee: NIHON SUPERIOR CO., LTD.Inventor: Tetsuro Nishimura
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Patent number: 11834731Abstract: A method of producing a ferritic heat-resistant steel welded joint, the method including: a multi-layer welding step in which a ferritic heat-resistant steel base material including B at 0.006% by mass to 0.023% by mass is multi-layer welded using a Ni-based welding material for heat-resistant alloy, wherein root pass welding is performed under a welding condition such that a ratio of an area [SBM] that has been melted of the ferritic heat-resistant steel base material to an area [SWM] of a weld metal, in a transverse cross-section of a weldment after the root pass welding but before second pass welding in the multi-layer welding step, satisfies the following formula (1): 0.1?[SBM]/[SWM]??50×[% BBM]+1.3, with respect to a mass percent of B, [% BBM], which is included in the ferritic heat-resistant steel base material.Type: GrantFiled: December 5, 2019Date of Patent: December 5, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Hiroyuki Hirata, Kana Jotoku, Shinnosuke Kurihara, Katsuki Tanaka
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Patent number: 11833621Abstract: An iodine-containing cyclic compound including no carboxy group and including one ring skeleton or a plurality of ring skeletons forming a fused ring in one molecule, is provided. The ring of the ring skeleton includes only a carbon atom, or a carbon atom, and a nitrogen atom and/or an oxygen atom, and an iodine atom is bonded to at least one of the atoms constituting the ring of the ring skeleton.Type: GrantFiled: April 27, 2019Date of Patent: December 5, 2023Assignee: KOKI COMPANY LIMITEDInventors: Kazuhiro Yukikata, Noriyoshi Uchida
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Patent number: 11825612Abstract: A flux includes: at least one liquid solvent that has one or more hydroxy groups and is liquid at ordinary temperature; and at least two solid solvents that respectively have one or more hydroxy groups and are solid at normal temperature, in which the content of each of the solid solvents is less than 40 mass % based on the total content of the liquid solvent and the solid solvents.Type: GrantFiled: October 2, 2017Date of Patent: November 21, 2023Assignee: KOKI Company LimitedInventor: Mitsuyasu Furusawa
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Patent number: 11819910Abstract: A tool steel composition for a component of a die-casting apparatus or of an extrusion press, comprises, in weight percentage: from about 0.35% to about 0.40% carbon (C); from about 0.32% to about 0.50% silicon (Si); from about 4.50% to about 5.50% chromium (Cr); from about 3.75% to about 4.75% molybdenum (Mo); from about 0.80% to about 1.00% vanadium (V); and iron (Fe).Type: GrantFiled: October 5, 2017Date of Patent: November 21, 2023Assignee: Exco Technologies LimitedInventor: Lin Chun Chien