公开(公告)号：US20240296985A1

公开(公告)日：2024-09-05

申请号：US18578425

申请日：2022-07-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jinwook Kim ,  Seong-Woo Woo ,  Sang-Jun Mo ,  Dongeun Lee ,  Jong-Pil Kim

IPC: H01F10/10 ,  H01F27/28 ,  H02J50/00 ,  H02J50/10

CPC classification number: H01F10/10 ,  H01F27/2847 ,  H01F27/2871 ,  H02J50/005 ,  H02J50/10 ,  H01F2027/2857

Abstract: The disclosure relates to a coil and an electrical system including the same. Specifically, according to an embodiment of the disclosure, there is provided a coil including: main coil surfaces which are opposite each other and are substantially planar; and a multilayer film which is wound to form a plurality of loops which are substantially concentric, wherein the plurality of loops include an innermost loop including a first longitudinal direction end of the coil, and an outermost loop including a second longitudinal direction end of the coil, wherein the multilayer film includes a plurality of first electro-conductive layers which alternate with each other, and one or more second electrical insulation layers, wherein the first electro-conductive layer and the second electrical insulation layer have a width and a length which are substantially coextensive therebetween, such that the main coil surfaces, which are substantially planar, include corresponding end surfaces of the first electro-conductive layer and the second electrical insulation layer, respectively, wherein at least two first electro-conductive layers have different average thicknesses to reduce an alternating current resistance of the coil by 5%-11.3% inclusive in a frequency of at least about 148 KHz.

公开(公告)号：US20130147586A1

公开(公告)日：2013-06-13

申请号：US13700305

申请日：2011-05-27

Applicant: John Vedamuthu Kennedy ,  Andreas Markwitz

Inventor： John Vedamuthu Kennedy ,  Andreas Markwitz

IPC: C23C14/14 ,  H01F10/10

CPC classification number: C23C14/14 ,  B82Y25/00 ,  B82Y40/00 ,  C23C14/18 ,  C23C14/48 ,  C23C14/582 ,  H01F1/0036 ,  H01F1/0063 ,  H01F10/007 ,  H01F10/10 ,  H01F41/16

Abstract: A method for preparing magnetic materials is disclosed. The magnetic materials are prepared by implanting low energy magnetic ions into a substrate and annealing with a charged particle beam. Magnetic materials comprising magnetic nanoclusters in the near-surface region of a substrate are also disclosed. The magnetic materials are useful in, for example, magneto-electronic devices such as magnetic sensors.

Abstract translation: 公开了制备磁性材料的方法。 磁性材料通过将低能磁离子注入衬底并用带电粒子束进行退火来制备。 还公开了在基板的近表面区域中包含磁性纳米团簇的磁性材料。 磁性材料可用于例如磁电子器件如磁性传感器。

公开(公告)号：US06852398B2

公开(公告)日：2005-02-08

申请号：US10645584

申请日：2003-08-22

Applicant: Kazuetsu Yoshida ,  Masaaki Futamoto ,  Yoshiyuki Hirayama

Inventor： Kazuetsu Yoshida ,  Masaaki Futamoto ,  Yoshiyuki Hirayama

IPC: G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  H01F10/00 ,  H01F10/16 ,  H01F41/18 ,  H01F10/10 ,  B11B5/66

CPC classification number: G11B5/66 ,  Y10T428/12861 ,  Y10T428/24942 ,  Y10T428/31678

Abstract: The present invention relates to perpendicular magnetic recording media using a ferromagnetic film provided with perpendicular magnetic anisotropy for a recording layer and a magnetic recording apparatus using the media, and the object is to provide the perpendicular magnetic recording media which are excellent in signal to noise ratio (S/N) in a large recording density region, which are stable against thermal fluctuation and which can be easily manufactured, and the magnetic recording apparatus using the media. The representative perpendicular magnetic recording media according to the invention include a glass substrate, a first recording layer which is provided on the substrate via an underlayer, which has perpendicular magnetic anisotropy and the magnitude of magnetic exchange interaction between grains of which is substantially zero and a second recording layer which is laminated on the first recording layer, which is provided with perpendicular magnetic anisotropy and the magnetic exchange interaction between grains of which is larger than that of the first recording layer.

Abstract translation: 本发明涉及使用具有用于记录层的垂直磁各向异性的铁磁膜和使用该介质的磁记录装置的垂直磁记录介质，其目的是提供信噪比优异的垂直磁记录介质 （S / N）在大的记录密度区域中，其对于热波动是稳定的并且可以容易地制造，以及使用该介质的磁记录装置。 根据本发明的代表性的垂直磁记录介质包括玻璃基板，通过底层设置在基板上的第一记录层，其具有垂直的磁各向异性，并且其晶粒之间的磁交换相互作用的大小基本为零， 层叠在第一记录层上的第二记录层，其具有垂直的磁各向异性，并且其晶粒之间的磁交换相互作用大于第一记录层的磁交换相互作用。

公开(公告)号：US4650712A

公开(公告)日：1987-03-17

申请号：US655924

申请日：1984-09-28

Applicant: Eiichi Hirose

Inventor： Eiichi Hirose

IPC: C22C1/10 ,  C22C45/04 ,  G11B5/127 ,  G11B5/147 ,  H01F1/12 ,  H01F10/10 ,  G11B7/12

CPC classification number: G11B5/127 ,  G11B5/147 ,  H01F10/10 ,  Y10S428/90 ,  Y10T428/1171 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/257

Abstract: A magnetic head especially suited for digital signals has cores each of which consists of a composite material. This material is produced by preparing an alloy such as cobalt-iron alloy, iron-silicon-boron alloy, or nickel-silicon-boron alloy, to use it as the matrix of the composite material, then melting the matrix, spraying particles made of carbon, a nitride, an oxide, or other material against the molten matrix to disperse the particles in the matrix uniformly in a three-dimensional way, cooling the matrix to produce an ingot, and refusing the ingot such that the particles do not melt, and solidifying the ingot by rapid quenching.

Abstract translation: 特别适用于数字信号的磁头具有由复合材料组成的芯。 该材料通过制备钴 - 铁合金，铁 - 硅 - 硼合金或镍 - 硅 - 硼合金等合金来制造，用作复合材料的基体，然后熔化基体，喷涂由 碳，氮化物，氧化物或其它材料，以分散三维方式均匀的基体中的颗粒，冷却基体以产生锭，并且拒绝晶锭使得颗粒不熔化， 并通过快速淬火固化锭。

公开(公告)号：US4315827A

公开(公告)日：1982-02-16

申请号：US234561

申请日：1981-02-13

Applicant: William R. Bottenberg ,  Mark S. Chagnon

Inventor： William R. Bottenberg ,  Mark S. Chagnon

IPC: H01F1/44 ,  H01F10/10

CPC classification number: H01F1/44

Abstract: A stable ferrofluid composition which comprises a colloidal dispersion of finely-divided magnetic particles in a liquid, low-pressure, polyphenyl ether carrier and a dispersing amount of a surfactant, which surfactant comprises a polyphenyl ether surfactant containing a functional group, such as an acidic group, and an aromatic tail group which is soluble in the polyphenyl ether carrier, to provide a stable ferrofluid composition.

Abstract translation: 一种稳定的铁磁性液体组合物，其包含在液体，低压，聚苯醚载体和分散量的表面活性剂中的细分磁性颗粒的胶态分散体，所述表面活性剂包含含有官能团的聚苯醚表面活性剂，例如酸 基团和可溶于聚苯醚载体的芳族尾基，提供稳定的铁磁流体组合物。

公开(公告)号：US4217151A

公开(公告)日：1980-08-12

申请号：US6895

申请日：1979-01-26

Applicant: Hideaki Mizuno ,  Susumu Terawaki

Inventor： Hideaki Mizuno ,  Susumu Terawaki

IPC: C22C38/00 ,  C23C14/06 ,  H01F1/20 ,  H01F10/08 ,  H01F10/10 ,  H01F41/20 ,  C04B35/00

CPC classification number: C23C14/0688 ,  H01F10/10 ,  H01F41/20

Abstract: A cermet type magnetic material whose essential components are Fe, Co and/or Ni and an oxide ceramic such as SiO, Al.sub.2 O.sub.3, SiO.sub.2, MgO or TiO.sub.2. This material features large hardness, high saturation magnetic induction, low coercive force and good durability and can readily be produced in the form of thin film on a substrate. Optionally this magnetic material may additionally comprise at least one of Si, B, P and C, or Cr and/or Mn.

Abstract translation: 金属陶瓷型磁性材料，其主要成分为Fe，Co和/或Ni，氧化物陶瓷如SiO，Al2O3，SiO2，MgO或TiO2。 该材料具有硬度大，饱和磁感应强度高，矫顽力低，耐久性好，可以容易地在基板上以薄膜形式制造。 任选地，该磁性材料可另外包含Si，B，P和C，或Cr和/或Mn中的至少一种。

公开(公告)号：US3770414A

公开(公告)日：1973-11-06

申请号：US3770414D

申请日：1970-12-28

Applicant: CONTINENTAL ORE CORP

Inventor： LAKE J ,  GOLDENBERG M ,  VOJKOVIC M ,  LITZ J ,  COLEMAN R

IPC: C01G39/02 ,  C01G47/00 ,  C22B1/02 ,  C22B1/20 ,  C22B34/34 ,  C22B61/00 ,  F27B21/06 ,  H01F10/10

CPC classification number: H01F10/10 ,  C01G39/02 ,  C01G47/00 ,  C01P2006/80 ,  C22B1/02 ,  C22B1/20 ,  C22B34/34 ,  C22B61/00 ,  F27B21/06

Abstract: An improvement in the recovery of molybdenum and rhenium values by roasting molybdenite which comprises preheating finely divided molybdenite concentrate and passing it downwardly through a vertically oriented reaction zone countercurrent to an upwardly traveling stream of high temperature oxygen, oxygen enriched air or oxygen-sulfur dioxide mixture heated by its passage through a roasting hearth at the bottom of the reaction zone. The rate of oxidation of sulfides is controlled by various means to keep the temperature in the reaction zone below that at which molybdenum oxide volatilizes with resultant inhibition of the volatilization of rhenium oxide. The process is attractive from the standpoint of pollution control as by-product sulfur dioxide gas ordinarily released to the atmosphere is produced in the exhaust gases in concentrations high enough to make its recovery economically feasible.

Abstract translation: 通过焙烧辉钼矿来提高钼和铼的回收率，其包括预热细碎的辉钼矿精矿并将其向下通过垂直取向的反应区域，与向上运动的高温氧气，富氧空气或氧 - 二氧化硫混合物流逆流 通过其通过反应区底部的焙烧炉床加热。 通过各种方法控制硫化物的氧化速率，以将反应区中的温度保持在低于氧化钼挥发的温度，从而抑制氧化铼的挥发。 从污染控制的观点来看，这个过程是有吸引力的，因为通常在排放气体中释放的副产物二氧化硫气体的浓度足够高以使其回收在经济上是可行的。

公开(公告)号：US3607677A

公开(公告)日：1971-09-21

申请号：US3607677D

申请日：1965-11-16

Applicant: AMPEX

Inventor： WOLF IRVING W ,  JAECKLIN ANDRE A

IPC: G11B5/64 ,  G11C19/08 ,  H01F1/04 ,  H01F10/10 ,  C23B5/48 ,  C23B5/32 ,  G11B5/00

CPC classification number: G11B5/656 ,  G11C19/0841 ,  H01F1/04 ,  H01F10/10 ,  H01F10/265

Abstract: A thin film storage memory and method of fabrication, wherein a high coercive force film is deposited as a separate layer on a low coercive force film, in a selected pattern as determined by a masking, coating of an electrically nonconductive material. The invention method is relatively simple due to the invention structure.

公开(公告)号：US3546005A

公开(公告)日：1970-12-08

申请号：US3546005D

申请日：1966-06-20

Applicant: GEN ELECTRIC

Inventor： VRIES ROBERT C DE

IPC: H01F10/10 ,  H01F10/18 ,  H01F10/28 ,  H01F10/02 ,  H01F10/04

CPC classification number: H01F10/10 ,  H01F10/18 ,  H01F10/28 ,  Y10T428/265

公开(公告)号：US3519498A

公开(公告)日：1970-07-07

申请号：US3519498D

申请日：1966-07-14

Applicant: IBM

Inventor： AHN KIE Y

IPC: C22C19/00 ,  C23C14/14 ,  H01F10/10 ,  H01F10/14 ,  H01F1/14 ,  C21D1/04

CPC classification number: C23C14/14 ,  C22C19/00 ,  H01F10/10 ,  H01F10/14