Amorphous Patents (Class 148/304)
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Patent number: 12173393Abstract: An Fe-based nanocrystalline alloy is represented by Composition Formula, (Fe(1-a)M1a)100-b-c-d-e-gM2bBcPdCueM3g, where M1 is at least one element selected from the group consisting of Co and Ni, M2 is at least one element selected from the group consisting of Nb, Mo, Zr, Ta, W, Hf, Ti, V, Cr, and Mn, M3 is at least two elements selected from the group consisting of C, Si, Al, Ga, and Ge but necessarily includes C, and 0?a?0.5, 1.5<b?3, 10?c?13, 0<d?4, 0<e?1.5, and 8.5?g?12.Type: GrantFiled: January 9, 2023Date of Patent: December 24, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Kyun Kwon, Han Wool Ryu, Chul Min Sim, Chang Hak Choi, Jong Suk Jeong
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Patent number: 12062473Abstract: A soft magnetic alloy including 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, and a Co concentration degree of the Co concentrated area is larger than 1.2.Type: GrantFiled: March 17, 2022Date of Patent: August 13, 2024Assignee: TDK CORPORATIONInventors: Hironobu Kumaoka, Kazuhiro Yoshidome, Akito Hasegawa, Satoko Mori
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Patent number: 11972884Abstract: A soft magnetic alloy includes a main component of (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))MaBbPcSidCe. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020?a?0.14 is satisfied. 0.020<b?0.20 is satisfied. 0?d?0.060 is satisfied. ??0 is satisfied. ??0 is satisfied. 0??+??0.50 is satisfied. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.Type: GrantFiled: January 10, 2019Date of Patent: April 30, 2024Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Kensuke Ara, Hajime Amano, Masakazu Hosono
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Patent number: 11894169Abstract: Disclosed is a soft magnetic powder including a main component represented by composition formula: (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e+f))MaBbPcSidCeSf. X1 represents one or more selected from the group consisting of Co and Ni; X2 represents one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, and rare earth elements; and M represents one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W, Ti, and V. The following relations are satisfied: 0?a?0.140; 0.020<b?0.200; 0<c?0.150; 0?d?0.060; 0?e?0.030; 0?f?0.010; ??0; ??0; and 0??+??0.50. An oxygen content ratio in the soft magnetic powder is from 300 ppm to 3,000 ppm as a mass ratio.Type: GrantFiled: May 16, 2019Date of Patent: February 6, 2024Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Satoko Mori, Masakazu Hosono, Yoshiki Kajiura
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Patent number: 11854715Abstract: A method of forming a metal-graphene composite includes coating metal components (10) with graphene (14) to form graphene-coated metal components, combining a plurality of the graphene-coated metal components to form a precursor workpiece (26), and working the precursor workpiece (26) into a bulk form (30) to form the metal-graphene composite. A metal-graphene composite includes graphene (14) in a metal matrix wherein the graphene (14) is single-atomic layer or multi-layer graphene (14) distributed throughout the metal matrix and primarily (but not exclusively) oriented with a plane horizontal to an axial direction of the metal-graphene composite.Type: GrantFiled: September 27, 2017Date of Patent: December 26, 2023Assignee: Ohio UniversityInventors: Keerti S. Kappagantula, Frank Frederick Kraft
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Patent number: 11688551Abstract: The method heats the metal foil made of amorphous soft magnetic material while bringing the metal foil into close contact with a placement surface of a metal base such that the metal foil conforms to the placement surface, to crystallize the amorphous soft magnetic material of the metal foil into nano-crystal soft magnetic material. In the crystallization, the metal foil is heated at a heating temperature to crystallize the amorphous soft magnetic material, the heating temperature being higher than or equal to a crystallization starting temperature at which the amorphous soft magnetic material crystallizes into nano-crystal soft magnetic material and allowing a temperature of the placement surface to be lower than a temperature of the metal foil having temperature rise due to heat generated by self-heating during crystallization, and the heat generated by self-heating of the metal foil during crystallization is absorbed by the base.Type: GrantFiled: January 19, 2021Date of Patent: June 27, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Osamu Yamashita
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Patent number: 11646153Abstract: The method heats the metal foil made of amorphous soft magnetic material while bringing the metal foil into close contact with a placement surface of a metal base such that the metal foil conforms to the placement surface, to crystallize the amorphous soft magnetic material of the metal foil into nano-crystal soft magnetic material. In the crystallization, the metal foil is heated at a heating temperature to crystallize the amorphous soft magnetic material, the heating temperature being higher than or equal to a crystallization starting temperature at which the amorphous soft magnetic material crystallizes into nano-crystal soft magnetic material and allowing a temperature of the placement surface to be lower than a temperature of the metal foil having temperature rise due to heat generated by self-heating during crystallization, and the heat generated by self-heating of the metal foil during crystallization is absorbed by the base.Type: GrantFiled: January 19, 2021Date of Patent: May 9, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Osamu Yamashita
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Patent number: 11559838Abstract: This application relates to an aluminum-based amorphous metal particles, a conductive Ink and OLED cathode including the aluminum-based amorphous metal particles, and a method of manufacturing the aluminum-based amorphous metal particles. In one aspect, the amorphous metal particles are represented by a formula AlxLiyNizYwCov. Here, x, y, z, w, and v denote an atomic ratio, and satisfy the following relationships: 75.0?x?90.0, 3.0<y?7.0, 1.0?z?7.0, 2.0?w?10.0, 0.0?v?5.5, and x+y+z+w+v=100.Type: GrantFiled: August 6, 2020Date of Patent: January 24, 2023Assignee: Korea Electronics Technology InstituteInventors: Keumhwan Park, Chanjae Lee, Youngmin Kim
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Patent number: 11459635Abstract: A device for the production of a metallic strip using a rapid solidification technology is provided. The device includes a movable heat sink with an external surface onto which a melt is poured and on which the melt solidifies to produce the strip, and which device includes a rolling device which can be pressed against the external surface of the movable heat sink while the heat sink is in motion.Type: GrantFiled: January 15, 2020Date of Patent: October 4, 2022Assignee: VACUUMSCHMELZE GMBH & CO. KGInventor: Robert Schulz
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Patent number: 11401589Abstract: Provided is a multilayer electrical steel sheet having both low high-frequency iron loss and high magnetic flux density. The multilayer electrical steel sheet has an inner layer and surface layers provided on both sides of the inner layer, in which the surface layers and the inner layer have a predetermined chemical composition, the multilayer electrical steel sheet having: ?Si of 0.5 mass % to 4.0 mass %; ?Al of 0.05 mass % or less; a ratio of t1 to t represented by t1/t of from 0.10 to 0.70; a magnetic flux density B10 of 1.3 T or more; and a ratio of B1 to B10 represented by B1/B10 of 0.45 or more; and an iron loss W10/1k in W/kg and the sheet thickness t in mm satisfy the following formula (1): W10/1k?15+140×t??(1).Type: GrantFiled: December 10, 2018Date of Patent: August 2, 2022Assignee: JFE STEEL CORPORATIONInventors: Yoshiaki Zaizen, Yoshihiko Oda, Tatsuhiko Hiratani
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Patent number: 11335485Abstract: Provided is a multilayer electrical steel sheet having low high-frequency iron loss and high magnetic flux density. The multilayer electrical steel sheet has an inner layer and surface layers provided on both sides of the inner layer, in which the surface layers and inner layer have predetermined chemical compositions, the multilayer electrical steel sheet having: ?Si of 0.5 mass % or more, ?Si being defined as a difference between a Si content in the surface layer [Si]1 and a Si content in the inner layer [Si]0 represented by [Si]1?[Si]0; ??1.0/400 of 1.0×10?6 or less, ??1.0/400 being defined as an absolute value of the difference between a magnetostriction of the surface layer ?1.0/400,1 and a magnetostriction of the inner layer ?1.0/400,0; a sheet thickness t of 0.03 mm to 0.3 mm, and a ratio of a total thickness of the surface layers t1 to t of from 0.10 to 0.70.Type: GrantFiled: December 10, 2018Date of Patent: May 17, 2022Assignee: JFE STEEL CORPORATIONInventors: Yoshihiko Oda, Yoshiaki Zaizen, Tatsuhiko Hiratani
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Patent number: 11255007Abstract: There is provided an amorphous alloy thin strip having a chemical composition represented by a chemical formula: FexBySiz (x: 78-83 at %, y: 8-15 at % and z: 6-13 at %) capable of stably attaining a low iron loss even when shaped into a wound core, wherein a generation density of air pockets on a face contacting with a cooling roll is not more than 8 per 1 mm2 and an arithmetic mean height Sa on portions other than the air pockets is not more than 0.3 ?m.Type: GrantFiled: February 7, 2017Date of Patent: February 22, 2022Assignee: JFE Steel CorporationInventors: Seiji Okabe, Takeshi Imamura, Katsumi Yamada
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Patent number: 11037711Abstract: Provided herein is a soft magnetic alloy powder that can exhibit a high saturation flux density and desirable soft magnetic characteristics. A dust core using such a soft magnetic alloy powder is also provided. A soft magnetic alloy powder is used that includes an amorphous phase, and an ?Fe crystalline phase residing in the amorphous phase. The ?Fe crystalline phase has a crystallite volume distribution with a mode of 1 nm or more and 15 nm or less, and with a half width of 3 nm or more and 50 nm or less.Type: GrantFiled: June 26, 2018Date of Patent: June 15, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masato Maede, Toshiyuki Kojima
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Patent number: 11021767Abstract: The present disclosure discloses a method for heat treating an iron-carbon alloy. The method comprises acts of heating the iron-carbon alloy to a first pre-determined temperature at a pre-determined heating rate, holding the iron-carbon alloy at the first pre-determined temperature for a pre-set period of time. The method further comprises acts of cooling the iron-carbon alloy to a second pre-determined temperature at a pre-determined cooling rate and inducing magnetic field on the iron-carbon alloy selectively during at least one of heating and cooling of the iron-carbon alloy. The induction of magnetic field on the iron-carbon alloy results in microstructural changes to improve formation of pearlitic structure in the iron-carbon alloy.Type: GrantFiled: December 21, 2016Date of Patent: June 1, 2021Assignee: TATA STEEL LIMITEDInventors: Saha Rajib, Kundu Saurabh, Chandra Sanjay
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Patent number: 11017925Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10). The powder contains a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less in an amount of 40 vol % or more. When the apparent density is assumed to be 100, the tap density is 103 or more and 130 or less.Type: GrantFiled: April 10, 2018Date of Patent: May 25, 2021Inventor: Yasuko Kudo
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Patent number: 10950374Abstract: Provided is an Fe-based alloy composition capable of forming an amorphous soft magnetic material which contains no P and which has a glass transition temperature Tg, the Fe-based alloy composition having a composition represented by the formula (Fe1?aTa)100at %?(x+b+c+d)MxBbCcSid, where T is an arbitrary added element such as Ni and M is an arbitrary added element such as Cr, the formula satisfying the following conditions: 0?a?0.3, 11.0 at %?b?18.20 at %, 6.00 at %?c?17 at %, 0 at %?d?10 at %, and 0 at %?x?4 at %.Type: GrantFiled: July 13, 2018Date of Patent: March 16, 2021Assignee: Alps Alpine Co., Ltd.Inventors: Hisato Koshiba, Takao Mizushima, Takafumi Hibino, Teruo Bitoh
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Patent number: 10943718Abstract: Provided is a soft magnetic alloy including Fe, as a main component, and including C. the soft magnetic alloy includes an Fe composite network phase having Fe-rich grids connected in a continuous measurement range including 80000 grids, each of which size is 1 nm×1 nm×1 nm. An average of C content ratio of the Fe-poor grids having cumulative frequency of 90% or more from lower C content is 5.0 times or more to an average of C content ratio of the whole soft magnetic alloy.Type: GrantFiled: February 26, 2018Date of Patent: March 9, 2021Assignee: TDK CORPORATIONInventors: Kazuhiro Yoshidome, Hiroyuki Matsumoto, Kenji Horino, Akito Hasegawa, Yu Yonezawa, Syota Goto, Hajime Amano
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Patent number: 10847291Abstract: A soft magnetic powder is represented by FeaSibBcPdCreMf except for inevitable impurities, wherein: M is one or more element selected from V, Mn, Co, Ni, Cu and Zn; 0 atomic %?b?6 atomic %; 4 atomic %?c?10 atomic %; 5 atomic %?d?12 atomic %; 0 atomic %<e; 0.4 atomic %?f<6 atomic %; and a+b+c+d+e+f=100 atomic %.Type: GrantFiled: February 6, 2018Date of Patent: November 24, 2020Assignee: TOKIN CORPORATIONInventors: Akiri Urata, Miho Chiba
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Patent number: 10767249Abstract: A magnetic powder is represented by general formula Fea(SibBcPd)100-a, and is produced with a gas atomization method. When the value of a and the value of b in the general formula is represented (a, b), (a, b) is within a predetermined region V1. Similarly, (a, c) and (a, d) are within a predetermined region, respectively. Whereby, it is possible to obtain an alloy magnetic powder which has high saturation magnetic flux density, low magnetic loss, and is spherical and easy to handle; and a magnetic core, a variety of coil components, and a motor can be realized by using the magnetic material.Type: GrantFiled: July 27, 2017Date of Patent: September 8, 2020Assignees: Murata Manufacturing Co., Ltd., Tohoku Magnet Institute Co., Ltd.Inventors: Toru Takahashi, Kazuhiro Henmi, Akihiro Makino, Noriharu Yodoshi
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Patent number: 10748694Abstract: A coil component is constituted by a composite magnetic material containing alloy grains whose oxygen atom concentration in their surfaces is 50 percent or less, and resin, and also by a coil. The alloy grains are comprised of first alloy grains and second alloy grains which have different compositions and different average grain sizes. The coil component using the composite magnetic material does not require high pressure when formed.Type: GrantFiled: May 15, 2017Date of Patent: August 18, 2020Assignee: TAIYO YUDEN CO., LTD.Inventor: Hideki Ogawa
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Patent number: 10743376Abstract: A closed-loop cooling system is internal to the enclosure of an induction drive system. Two inverter modules of the induction drive system each includes three insulated gate bipolar transistor (IGBT) modules for producing an AC output from a DC source, the AC output received by an induction coil for heating a metal.Type: GrantFiled: April 3, 2018Date of Patent: August 11, 2020Assignee: ATSE, LLCInventors: Franklin B. Jones, Eric D. Donahue, Andrew I. Nehring, Daniel T. Jones, Robert A. Hummel
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Patent number: 10730105Abstract: A method is provided for producing a 0.8-4.5 mm thick steel strip with an amorphous, partially amorphous or fine-crystalline microstructure with grain sizes in the range of 10-10000 nm and also a flat steel product made therefrom. A molten steel is cast into a cast strip in a casting device and cooled down at an accelerated rate. Along with Fe and impurities that are unavoidable for production-related reasons, the molten material contains at least two elements belonging to the group “Si, B, C and P”. In this case, the following applies for the contents of these elements (in % by weight) Si: 1.2-7.0%, B: 0.4-4.0%, C: 0.5-4.0%, P: 1.5-8.0%. With a corresponding composition and a microstructure with corresponding characteristics, a flat steel product according to the invention has a HV0.5 hardness of 760-900.Type: GrantFiled: January 24, 2014Date of Patent: August 4, 2020Assignee: THYSSENKRUPP STEEL EUROPE AGInventors: Dorothée Dorner, Christian Höckling, Harald Hofmann, Matthias Schirmer, Markus Daamen
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Patent number: 10644230Abstract: A magnetic material sputtering target formed from a sintered body containing at least Co and/or Fe and B, and containing B in an amount of 10 to 50 at %, wherein an oxygen content is 100 wtppm or less. Since the magnetic material sputtering target of the present invention can suppress the generation of particles caused by oxides, the present invention yields superior effects of being able to improve the yield upon producing magnetoresistive films and the like.Type: GrantFiled: February 24, 2016Date of Patent: May 5, 2020Assignee: JX NIPPON MINING & METALS CORPORATIONInventor: Atsutoshi Arakawa
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Patent number: 10594141Abstract: The present invention relates to a soft magnetic alloy and, more specifically, to a soft magnetic alloy used in electric transformers, pulse generators, compressions, electric chokes, energy-accumulating inductors, magnetic sensors, or the like, and a wireless power transmitting apparatus and wireless power receiving apparatus including the soft magnetic alloy.Type: GrantFiled: November 17, 2015Date of Patent: March 17, 2020Assignee: LG INNOTEK CO., LTD.Inventors: Seok Bae, Ji Yeon Song, Won Ha Moon, Jai Hoon Yeom, Sang Won Lee, Jong Hyuk Lee
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Patent number: 10566127Abstract: An Fe—Si—B—C-based amorphous alloy ribbon as thick as 20-30 ?m having a composition comprising 80.0-80.7 atomic % of Fe, 6.1-7.99 atomic % of Si, and 11.5-13.2 atomic % of B, the total amount of Fe, Si and B being 100 atomic %, and further comprising 0.2-0.45 atomic % of C per 100 atomic % of the total amount of Fe, Si and B, except for inevitable impurities has a stress relief degree of 92% or more.Type: GrantFiled: December 8, 2015Date of Patent: February 18, 2020Assignees: HITACHI METALS, LTD., METGLAS, INC.Inventors: Eric Theisen, Yuichi Ogawa, Daichi Azuma
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Patent number: 10546674Abstract: Conventional Fe-based soft magnetic alloy ribbons each containing Co and Ni have a problem that magnetic anisotropy that is neatly arranged in one direction cannot be induced easily even by a magnetic field annealing treatment and, therefore, a wound magnetic cores, a problem that a residual magnetic flux density Br is high, a problem that the hysteresis of the B—H curve becomes large (coercivity Hc becomes large), a problem that the change in incremental permeability relative to superimposed magnetic field becomes large, and others. In order to solve the problems, provided is an Fe-based soft magnetic alloy ribbon including a Cu-concentrated region present directly below a surface of the ribbon, and a Co-concentrated region present directly below the Cu-concentrated region. Also provided is a magnetic core including the Fe-based soft magnetic alloy ribbon.Type: GrantFiled: November 19, 2015Date of Patent: January 28, 2020Assignee: HITACHI METALS, LTD.Inventor: Yoshihito Yoshizawa
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Patent number: 10535455Abstract: A soft magnetic alloy including a main component having a compositional formula of (Fe(1?(?+?))X1?X2?)(1?(a+b+c))MaBbPc, and a sub component including at least C, S and Ti, wherein X1 is one or more selected from the group including Co and Ni, X2 is one or more selected from the group including Al, Mn, Ag, Zn, Sn, As, Sb, Bi, and rare earth elements, “M” is one or more selected from the group including Nb, Hf, Zr, Ta, Mo, W, and V, 0.020?a?0.14, 0.020?b?0.20, 0?c?0.040, ??0, ??0, and 0??+??0.50 are satisfied, when entire said soft magnetic alloy is 100 wt %, a content of said C is 0.001 to 0.050 wt %, a content of said S is 0.001 to 0.050 wt %, and a content of said Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing the content of said C by the content of said S is C/S, then C/S satisfies 0.10?C/S?10.Type: GrantFiled: January 26, 2018Date of Patent: January 14, 2020Assignee: TDK CORPORATIONInventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Shota Otsuka
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Patent number: 10519534Abstract: A iron-based amorphous alloy thin strip having a chemical composition represented by a chemical formula of FexBySiz (wherein x is 78-83 at %, y is 8-15 at % and z is 6-13 at %), wherein the number of air pockets at a surface contacting with a cooling roll is not more than 8 pockets/mm2 and an average length in a circumferential direction of the roll is not more than 0.5 mm.Type: GrantFiled: July 28, 2014Date of Patent: December 31, 2019Assignee: JFE Steel CorporationInventors: Seiji Okabe, Nobuo Shiga, Takeshi Imamura
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Patent number: 10468182Abstract: A rapidly quenched Fe-based soft-magnetic alloy ribbon having wave-like undulations on a free surface, the wave-like undulations having transverse troughs arranged at substantially constant intervals in a longitudinal direction, and the troughs having an average amplitude D of 20 mm or less, is produced by a method comprising (a) keeping a transverse temperature distribution in a melt nozzle within ±15° C. to have as small a temperature distribution as possible in a melt paddle of the alloy, and (b) forming numerous fine linear scratches on a cooling roll surface by a wire brush, thereby providing a ground surface of the cooling roll with an arithmetical mean (average) roughness Ra of 0.1-1 ?m and a maximum roughness depth Rmax of 0.5-10 ?m.Type: GrantFiled: March 3, 2017Date of Patent: November 5, 2019Assignee: HITACHI METALS, LTD.Inventors: Yoshihito Yoshizawa, Motoki Ohta, Naoki Ito
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Patent number: 10450638Abstract: The present invention achieves an object of continuously supplying a melt from a melt nozzle over a long period of time by adjusting the contents of Mn and S in an Fe—B—Si—C-type amorphous alloy ribbon. An amorphous alloy ribbon of the present invention includes a composition containing Fe, Si, B, C, Mn, S, and inevitable impurities, the composition containing, with respect to 100.0 atm % of the total amount of Fe, Si, B, and C, 3.0 atm % or more and 10.0 atm % or less of Si, 10.0 atm % or more and 15.0 atm % or less of B, and 0.2 atm % or more and 0.4 atm % or less of C, the amorphous alloy ribbon having a content ratio of Mn of more than 0.12 mass % and less than 0.15 mass %, and a content ratio of S of 0.0036 mass % or more and less than 0.0045 mass %, the amorphous alloy ribbon having a thickness of 10 ?m or more and 40 ?m or less, and a width of 100 mm or more and 300 mm or less.Type: GrantFiled: November 20, 2015Date of Patent: October 22, 2019Assignee: HITACHI METALS, LTD.Inventors: Morifumi Kuroki, Kenichiro Hara, Hajime Itagaki
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Patent number: 10323890Abstract: A method for joining a first metal part with a second metal part, the metal parts having a solidus temperature above 1000° C. The method includes applying a melting depressant composition on a surface of the first metal part, the melting depressant composition including a melting depressant component that includes phosphorus and silicon for decreasing a melting temperature of the first metal part; bringing the second metal part into contact with the melting depressant composition at a contact point on said surface; heating the first and second metal parts to a temperature above 1000° C.; and allowing a melted metal layer of the first metal component to solidify, such that a joint is obtained at the contact point. The melting depressant composition and related products are also described.Type: GrantFiled: September 10, 2014Date of Patent: June 18, 2019Assignee: ALFA LAVAL CORPORATE ABInventors: Per Sjödin, Kristian Walter
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Patent number: 10304610Abstract: A coil component includes a coil portion, a core portion in which the coil portion is buried, and first and second outer electrodes connected respectively to one end and the other end of the coil portion at one or different end surfaces of the core portion. The core portion includes a metal magnetic substance—resin composite and a heat dissipative resin composite having a higher thermal conductivity than the metal magnetic substance—resin composite. The heat dissipative resin composite is arranged around an outer periphery of the coil portion to connect the outer periphery and the end surface of the core portion in at least parts thereof. The metal magnetic substance—resin composite is arranged in a core region and upper and lower regions with respect to the coil portion, and in a connecting region in at least one corner of the core portion.Type: GrantFiled: October 25, 2016Date of Patent: May 28, 2019Assignee: Murata Manufacturing Co., Ltd.Inventor: Eiichi Maeda
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Patent number: 10290406Abstract: The invention relates to a metallic magnetic material with biocompatible elements (Ti, Ta or Mn), with glassy quasi-amorphous structure and controlled Curie temperature, and the processes for preparing the same. The hereby material has its composition expressed in atomic percent: Fe=59 . . . 67%, Nb=0.1 . . . 1%, B=20%, biocompatible material (Ti, Ta or Mn)=12 . . . 20%), Curie temperature within the interval 0 . . . 70° C., saturation magnetic induction of 0.05 . . . 1.1 T and strong magnetic response when introduced in a high frequency magnetic field. The processes used to obtain this material directly under the form of ribbons, glass-coated micro/nanowires or nano/micropowders consist in rapid quenching of the mixtures with previously mentioned compositions under extremely rigorous controlled conditions, in high vacuum of minimum 10?4 mbars or in controlled helium or argon atmosphere in order to avoid oxidation.Type: GrantFiled: December 3, 2014Date of Patent: May 14, 2019Assignee: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA TEHNICA IASIInventors: Horia Chiriac, Nicoleta Lupu
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Patent number: 10242840Abstract: A method of producing an implantation ion energy filter, suitable for processing a power semiconductor device. In one example, the method includes creating a preform having a first structure; providing an energy filter body material; and structuring the energy filter body material by using the preform, thereby establishing an energy filter body having a second structure.Type: GrantFiled: May 23, 2017Date of Patent: March 26, 2019Assignee: Infineon Technologies AGInventors: Roland Rupp, Andre Brockmeier
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Patent number: 10204725Abstract: The present invention provides a composite magnetic core, containing magnetic powders poor in its moldability, which can be configured arbitrarily and has a magnetic characteristic excellent in direct current superimposition characteristics and a magnetic element composed of the composite magnetic core and a coil wound around the circumference thereof. A compressed magnetic body (2) obtained by compression-molding magnetic powders is combined with an injection-molded magnetic body (3) obtained by mixing a binding resin with magnetic powders having surfaces thereof electrically insulated and by injection-molding a mixture of the magnetic powders and the binding resin. The compressed magnetic body (2) is press-fitted into the injection-molded magnetic body (3) or bonded thereto at a combining portion thereof to obtain the combined body. The combined body is composed of the injection-molded magnetic body (3) constituting a housing in which the compressed magnetic body (2) is disposed.Type: GrantFiled: February 28, 2017Date of Patent: February 12, 2019Assignee: NTN CORPORATIONInventors: Ikuo Uemoto, Shinji Miyazaki, Takuji Harano
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Patent number: 10196734Abstract: A technique for forming a material including nanotwinned silver crystals in solid solution with a solute that exhibits enhanced strength and desirable electrical conductivity, as compared to coarse-grained material. Synthesis of nanotwinned silver alloy material is achieved by cooling of a substrate and co-deposition of silver and the solute. Controlling the processing conditions of synthesis allows for tailoring of the nanostructure and mechanical properties of the nanotwinned silver alloy material. A material including nanotwinned silver crystals in solid solution with a solute also is described.Type: GrantFiled: March 20, 2015Date of Patent: February 5, 2019Assignee: Iowa State University Research Foundation, Inc.Inventors: Ryan Timothy Ott, Matthew Frank Besser
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Patent number: 10043607Abstract: Present disclosure relates to magnetic materials, chips having magnetic materials, and methods of forming magnetic materials. In certain embodiments, magnetic materials may include a seed layer, and a cobalt-based alloy formed on seed layer. The seed layer may include copper, cobalt, nickel, platinum, palladium, ruthenium, iron, nickel alloy, cobalt-iron-boron alloy, nickel-iron alloy, and any combination of these materials. In certain embodiments, the chip may include one or more on-chip magnetic structures. Each on-chip magnetic structure may include a seed layer, and a cobalt-based alloy formed on seed layer. In certain embodiments, method may include: placing a seed layer in an aqueous electroless plating bath to form a cobalt-based alloy on seed layer. In certain embodiments, the aqueous electroless plating bath may include sodium tetraborate, an alkali metal tartrate, ammonium sulfate, cobalt sulfate, ferric ammonium sulfate and sodium borohydride and has a pH between about 9 to about 13.Type: GrantFiled: May 2, 2016Date of Patent: August 7, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Hariklia Deligianni, William J. Gallagher, Yu Luo, Lubomyr T. Romankiw, Joonah Yoon
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Patent number: 10026340Abstract: A method of detection and removal of auxiliary material suitable for the manufacturing of an aircraft element includes providing an auxiliary material having at least one detection label, scanning the element with a label detector suitable to detect the detection label once the element has been manufactured, detecting the auxiliary material by means of a warning signal emitted by the label detector and removing the auxiliary material from the element. An auxiliary material suitable for the manufacturing of an aircraft element includes a detection label.Type: GrantFiled: September 2, 2014Date of Patent: July 17, 2018Assignee: AIRBUS OPERATIONS S.L.Inventors: Adrián Salazar Ruiz, Óscar Macías Martín-Crespo, Jesús López Coracho, Abraham Pérez Nuevo, Nuria Martínez Martín
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Patent number: 10017851Abstract: A method of magnetic forming an integrated fluxgate sensor includes providing a patterned magnetic core on a first nonmagnetic metal or metal alloy layer on a dielectric layer over a first metal layer that is on or in an interlevel dielectric layer (ILD) which is on a substrate. A second nonmagnetic metal or metal alloy layer is deposited including over and on sidewalls of the magnetic core. The second nonmagnetic metal or metal alloy layer is patterned, where after patterning the second nonmagnetic metal or metal alloy layer together with the first nonmagnetic metal or metal alloy layer encapsulates the magnetic core to form an encapsulated magnetic core. After patterning, the encapsulated magnetic core is magnetic field annealed using an applied magnetic field having a magnetic field strength of at least 0.1 T at a temperature of at least 150° C.Type: GrantFiled: December 22, 2015Date of Patent: July 10, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Dok Won Lee, Mona Eissa, Neal Thomas Murphy
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Patent number: 9978497Abstract: The invention provides a wound magnetic core which is configured by winding an Fe-based amorphous alloy ribbon, the wound magnetic core containing a recess row including plural recesses formed by laser irradiation in a central part of the Fe-based amorphous alloy ribbon in a width direction, in which a ratio of a length of the central part to a total width is from 0.2 to 0.8.Type: GrantFiled: March 12, 2014Date of Patent: May 22, 2018Assignee: HITACHI METALS, LTD.Inventors: Daichi Azuma, Naoki Itoh, Makoto Sasaki, Shinichi Kazui
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Patent number: 9913414Abstract: The present invention relates to a method and apparatus of protecting magnetically sensitive devices with a shield, including: a non-superconducting metal or lower transition temperature (Tc) material compared to a higher transition temperature material, disposed in a magnetic field; means for creating a spatially varying order parameter's |?(r,T)|2 in a non-superconducting metal or a lower transition temperature material; wherein a spatially varying order parameter is created by a proximity effect, such that the non-superconducting metal or the lower transition temperature material becomes superconductive as a temperature is lowered, creating a flux-free Meissner state at a center thereof, in order to sweep magnetic flux lines to the periphery.Type: GrantFiled: September 4, 2015Date of Patent: March 6, 2018Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: John E. Sadleir
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Patent number: 9816166Abstract: The disclosure is directed to Ni—P—B alloys bearing Mn and optionally Cr and Mo that are capable of forming a metallic glass, and more particularly metallic glass rods with diameters at least 1 mm and as large as 5 mm or larger. The disclosure is further directed to Ni—Mn—Cr—Mo—P—B alloys capable of demonstrating a good combination of glass forming ability, strength, toughness, bending ductility, and corrosion resistance.Type: GrantFiled: February 26, 2014Date of Patent: November 14, 2017Assignee: Glassimetal Technology, Inc.Inventors: Jong Hyun Na, Michael Floyd, Marios D. Demetriou, William L. Johnson, Glenn Garrett, Maximilien Launey, Danielle Duggins
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Patent number: 9782242Abstract: Metallic dental prostheses made of bulk-solidifying amorphous alloys wherein the dental prosthesis has an elastic strain limit of around 1.2% or more and methods of making such metallic dental prostheses are provided.Type: GrantFiled: February 6, 2014Date of Patent: October 10, 2017Assignee: Crucible Intellectual Propery, LLCInventors: Atakan Peker, Choongnyun Paul Kim, Quoc Tran Pham
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Patent number: 9777359Abstract: Ferrous metal alloys including Fe, Co and optionally Ni with metalloids Si, B and P are provided that are substantially close to the peak in glass forming ability and have a combination of both good glass formability and good ferromagnetic properties. In particular, Fe/Co-based compositions wherein the Co content is between 15 and 30 atomic percent and the metalloid content is between 22 and 24 atomic percent at a well-defined metalloid moiety, have been shown to be capable of forming bulk glassy rods with diameters as large as 4 mm or larger. In addition, incorporating a small content of Ni under 10 atomic percent and additions of Mo, Cr, Nb, Ge, or C at an incidental impurity level of up to 2 atomic percent are not expected to impair the bulk-glass-forming ability of the present alloys.Type: GrantFiled: May 7, 2014Date of Patent: October 3, 2017Assignee: California Institute of TechnologyInventors: Xiao Liu, Marios D. Demetriou, William L. Johnson, Michael Floyd
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Patent number: 9747767Abstract: An acoustic magnetic tag includes a housing, a resonant sheet, and a biasing magnetic sheet received in the main body. The housing includes a main body having an opening, a first connecting portion connected to one side of the main body, a second connecting portion connected to an other side of the main body opposite to the one side, a partition connected to the first connecting portion, and a cover connected to the second connecting portion. The partition is rotated relative to the main body to be received in the main body by folding the first connecting portion, and the cover is rotated relative to the main body to cover the opening by folding the second connecting portion. The partition is positioned between the resonant sheet and the biasing magnetic sheet.Type: GrantFiled: February 29, 2016Date of Patent: August 29, 2017Assignees: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jian-Wei Hu, Tao Sun
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Patent number: 9638822Abstract: An article, system and method related to a magnetomechanical marker used to mark stationary assets. Magnetomechanical markers can be arranged in clusters and associated with stationary assets, including assets buried underground. Markers can be associated with an asset by being attached to the asset, arranged in a particular spatial relationship with the asset, or in any other appropriate way. A portable locating device can be used to generate an alternating magnetic field to activate the magnetomechanical marker and thus locate the asset.Type: GrantFiled: April 21, 2015Date of Patent: May 2, 2017Assignee: 3M Innovative Properties CompanyInventors: Ziyad H. Doany, Dean M. Dowdle, Michael E. Hamerly, William C. Egbert, Terrence H. Joyce, Jr.
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Patent number: 9640852Abstract: Systems (100) and methods (1800) for making a marker housing. The methods comprise: forming a first housing portion from a flexible material so as to have a planar shape; and forming a second housing portion (700, 1200, 1500) from the flexible material so as to comprise a cavity (702, 1202) in which resonator and bias elements (104, 110) of the marker can be housed when the second housing portion is coupled to the first housing portion. The cavity is defined by two opposing short sidewalls (708, 712), two opposing elongate sidewalls (706, 710) and a bottom sidewall (704). The two opposing elongate sidewalls are stiffened such that crushing and bending thereof is made difficult. The stiffening is achieved by forming a plurality of first stiffener edge features (714) along an exterior surface of each of the two opposing elongate sidewalls which partially define the cavity of the second housing portion.Type: GrantFiled: September 16, 2014Date of Patent: May 2, 2017Assignee: Tyco Fire & Security GmbHInventors: Gopal Chandramowle, Randy Zirk
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Patent number: 9620270Abstract: The present invention provides a composite magnetic core, containing magnetic powders poor in its moldability, which can be configured arbitrarily and has a magnetic characteristic excellent in direct current superimposition characteristics and a magnetic element composed of the composite magnetic core and a coil wound around the circumference thereof. A compressed magnetic body (2) obtained by compression-molding magnetic powders is combined with an injection-molded magnetic body (3) obtained by mixing a binding resin with magnetic powders having surfaces thereof electrically insulated and by injection-molding a mixture of the magnetic powders and the binding resin. The compressed magnetic body (2) is press-fitted into the injection-molded magnetic body (3) or bonded thereto at a combining portion thereof to obtain the combined body. The combined body is composed of the injection-molded magnetic body (3) constituting a housing in which the compressed magnetic body (2) is disposed.Type: GrantFiled: July 24, 2013Date of Patent: April 11, 2017Assignee: NTN CORPORATIONInventors: Ikuo Uemoto, Shinji Miyazaki, Takuji Harano
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Patent number: 9558871Abstract: An Fe-based amorphous alloy of the present invention has a composition represented by formula (Fe100-a-b-c-d-eCraPbCcBdSie (a, b, c, d, and e are in terms of at %), where 0 at %?a?1.9 at %, 1.7 at %?b?8.0 at %, 0 at %?e?1.0 at %, an Fe content (100-a-b-c-d-e) is 77 at % or more, 19 at %?b+c+d+e?21.1 at %, 0.08?b/(b+c+d)?0.43, 0.06?c/(c+d)?0.87, and the Fe-based amorphous alloy has a glass transition temperature (Tg).Type: GrantFiled: December 19, 2013Date of Patent: January 31, 2017Assignee: ALPS ELECTRIC CO., LTD.Inventors: Kinshiro Takadate, Hisato Koshiba
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Patent number: 9534283Abstract: Ni—Fe—Si—B and Ni—Fe—Si—B—P metallic glass forming alloys and metallic glasses are provided. Metallic glass rods with diameters of at least one, up to three millimeters, or more can be formed from the disclosed alloys. The disclosed metallic glasses demonstrate high yield strength combined with high corrosion resistance, while for a relatively high Fe contents the metallic glasses are ferromagnetic.Type: GrantFiled: January 7, 2014Date of Patent: January 3, 2017Assignee: Glassimental Technology, Inc.Inventors: Jong Hyun Na, Michael Floyd, Marios D. Demetriou, William L. Johnson, Glenn Garrett, Maximilien Launey