公开(公告)号：US10695840B2

公开(公告)日：2020-06-30

申请号：US15153417

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Jinbae Kim ,  Yangwoo Byun

IPC: B22F9/04 ,  H01F1/01 ,  B22F3/16 ,  H01F1/08 ,  H01F41/02 ,  B22F9/00 ,  H01F1/047 ,  C22C1/04 ,  C22C12/00 ,  C22C22/00 ,  H01F1/057

Abstract: Disclosed are an MnBi sintered magnet exhibiting excellent thermal stability as well as excellent magnetic characteristics at high temperature, an MnBi anisotropic complex sintered magnet, and a method of preparing the same.

公开(公告)号：US20140286817A1

公开(公告)日：2014-09-25

申请号：US14348183

申请日：2013-01-09

Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS ,  LG ELECTRONICS INC.

Inventor： Jinbae Kim ,  Jongryoul Kim ,  Sanggeun Cho ,  Namseok Kang

IPC: H01F1/03 ,  H01F41/02 ,  C25D1/00 ,  H01F41/00

CPC classification number: H01F1/03 ,  B22F1/0018 ,  B22F1/0059 ,  B22F1/025 ,  B22F3/225 ,  B22F3/227 ,  B22F2998/10 ,  B22F2999/00 ,  B82Y30/00 ,  C22C2202/02 ,  C23C18/1635 ,  C23C18/1689 ,  C23C18/1879 ,  C23C18/1889 ,  C25D1/006 ,  C25D5/48 ,  C25D7/001 ,  H01F1/0579 ,  H01F1/113 ,  H01F41/005 ,  H01F41/02 ,  H01F41/26 ,  B22F3/02 ,  B22F3/10 ,  B22F2202/05

Abstract: The present invention relates to a method of producing a large amount of hard-soft magnetic nanocomposite powder in short time. The hard-soft magnetic nanocomposite powder of present invention has some merits such as independence from resource supply problem of rare earth elements and low price and can overcome physical and magnetic limitations possessed by the conventional ferrite monophased material.

Abstract translation: 本发明涉及在短时间内生产大量硬 - 软磁性纳米复合粉末的方法。 本发明的硬 - 软磁性纳米复合粉末具有独立于稀土元素的资源供应问题和低价格等优点，并能克服传统的铁氧体单相材料所具有的物理和磁性限制。

公开(公告)号：US10115508B2

公开(公告)日：2018-10-30

申请号：US15526958

申请日：2015-06-24

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Jinbae Kim ,  Yongho Choa ,  Jongryoul Kim ,  Hyoryoung Lim

IPC: H01Q1/00 ,  H01F1/147 ,  H01Q9/04 ,  H01Q1/24 ,  H01Q1/38 ,  H01Q9/16

Abstract: The present invention relates to a magnetic-dielectric composite for a high-frequency antenna substrate, and a manufacturing method therefor, the composite comprising: a porous insulating dielectric substrate including an upper surface, a lower surface and lateral surfaces, and having a plurality of pores penetrating the upper surface and the lower surface; and soft ferrite nano-wires provided within the pores, wherein the soft ferrite nano-wires are encompassed by the insulating dielectric substrate so as to be separated from each other. The present invention controls a dielectric constant and can minimize eddy current loss by having a structure in which the soft ferrite nano-wires are provided within the pores of the insulating dielectric substrate and in which the soft ferrite nano-wires are encompassed by the insulating dielectric substrate so as to be separated from each other.

公开(公告)号：US09552910B2

公开(公告)日：2017-01-24

申请号：US13962130

申请日：2013-08-08

Applicant: LG ELECTRONICS INC. ,  Industry-University Cooperation Foundation Hanyang University ERICA Campus

Inventor： Namseok Kang ,  Jinbae Kim ,  Yongho Choa ,  Jongyoul Kim ,  Gukhwan An ,  Sanggeun Cho

IPC: H01F1/01 ,  H01F1/37 ,  H01F1/113

CPC classification number: H01F1/01 ,  H01F1/113 ,  H01F1/37 ,  H01F41/0246 ,  H01F41/0266

Abstract: A ferrite magnet with salt includes 40 to 99.9 weight % of ferrite and 0.1 to 60 weight % of salt, wherein the salt has a melting point lower than a synthetic temperature of the ferrite, and the salt is melted to form a matrix between the ferrite particles, and a manufacturing thereof. The ferrite magnet with salt has advantages in terms of process conditions due to fast synthesis reaction at low temperatures compared to typical magnets, easily obtaining nano-sized particles having high crystallinity, preventing cohesion between particles and particle growth by molten salt, allowing sintering at temperatures lower than typical during the molding and sintering processes for producing a ferrite magnet with salt due to synthesized ferrite magnetic powder with salt thus preventing the deterioration of magnetic characteristics due to particle growth, and allowing alignment in the direction of magnetization easy axis to obtain higher magnetic characteristics.

Abstract translation: 具有盐的铁氧体磁体包含40至99.9重量％的铁素体和0.1至60重量％的盐，其中盐的熔点低于铁素体的合成温度，并且盐被熔化以在铁素体之间形成基质 颗粒及其制造。 具有盐的铁氧体磁体在工艺条件方面具有优势，因为与典型的磁体相比，在低温下快速的合成反应，容易获得具有高结晶度的纳米尺寸的颗粒，防止颗粒之间的内聚和通过熔融盐的颗粒生长，允许在温度 低于典型的用于由于合成的铁氧体磁性粉末与盐制造具有盐的铁氧体磁体的模制和烧结过程，从而防止由于颗粒生长导致的磁特性的劣化，并且允许在易磁化方向上的取向以获得更高的磁性 特点

公开(公告)号：US09362034B2

公开(公告)日：2016-06-07

申请号：US14348507

申请日：2013-01-09

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Jongryoul Kim ,  Jinbae Kim ,  Namseok Kang ,  Sanggeun Cho

IPC: H01F1/06 ,  H01F1/047 ,  B82B3/00 ,  H01F1/03 ,  H01F41/02 ,  H01F1/08 ,  H01F1/11 ,  H01F1/113 ,  H01F1/057

CPC classification number: H01F1/0315 ,  H01F1/0306 ,  H01F1/0579 ,  H01F1/08 ,  H01F1/112 ,  H01F1/113 ,  H01F41/0266

Abstract: The present invention relates to a core-shell structured nanoparticle having hard-soft heterostructure, magnet prepared from the nanoparticle, and preparing method thereof. The core-shell structured nanoparticle having hard-soft magnetic heterostructure of present invention has some merits such as independence from resource supply problem of rare earth elements and low price and can overcome physical and magnetic limitations possessed by the conventional ferrite mono-phased material.

Abstract translation: 本发明涉及具有硬 - 软异质结构的核 - 壳结构纳米颗粒，由纳米颗粒制备的磁体及其制备方法。 具有本发明的硬 - 软磁异质结构的核 - 壳结构纳米颗粒具有诸如稀土元素的资源供应问题的独立性和低价格等优点，并且可以克服传统的铁氧体单相材料所具有的物理和磁性限制。

公开(公告)号：US10741314B2

公开(公告)日：2020-08-11

申请号：US15153199

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Jinbae Kim ,  Yangwoo Byun

IPC: H01F1/059 ,  H01F1/057 ,  H01F41/02 ,  H01F1/08

Abstract: The present invention relates to an anisotropic complex sintered magnet including MnBi with magnetic characteristics enhanced and an atmospheric sintering method for preparing the same. The anisotropic complex sintered magnet including MnBi according to the present invention may implement excellent magnetic characteristics, and thus may replace rare earth bond magnets in the related art, and a continuous process is enabled because the magnet is prepared by an atmospheric sintering method, and a sintering method used in the permanent magnet process in the related art is used as it is, so that the anisotropic complex sintered magnet is economical.

公开(公告)号：US20140225024A1

公开(公告)日：2014-08-14

申请号：US14348507

申请日：2013-01-09

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Jongryoul Kim ,  Jinbae Kim ,  Namseok Kang ,  Sanggeun Cho

IPC: H01F1/03 ,  H01F41/02

CPC classification number: H01F1/0315 ,  H01F1/0306 ,  H01F1/0579 ,  H01F1/08 ,  H01F1/112 ,  H01F1/113 ,  H01F41/0266

Abstract: The present invention relates to a core-shell structured nanoparticle having hard-soft heterostructure, magnet prepared from the nanoparticle, and preparing method thereof. The core-shell structured nanoparticle having hard-soft magnetic heterostructure of present invention has some merits such as independence from resource supply problem of rare earth elements and low price and can overcome physical and magnetic limitations possessed by the conventional ferrite mono-phased material.

Abstract translation: 本发明涉及具有硬 - 软异质结构的核 - 壳结构纳米颗粒，由纳米颗粒制备的磁体及其制备方法。 具有本发明的硬 - 软磁异质结构的核 - 壳结构纳米颗粒具有诸如稀土元素的资源供应问题的独立性和低价格等优点，并且可以克服传统的铁氧体单相材料所具有的物理和磁性限制。