CN1097270C - 一种电磁干扰抑制磁性复合材料及其制造方法 - Google Patents

一种电磁干扰抑制磁性复合材料及其制造方法 Download PDF

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Publication number
CN1097270C
CN1097270C CN96112346A CN96112346A CN1097270C CN 1097270 C CN1097270 C CN 1097270C CN 96112346 A CN96112346 A CN 96112346A CN 96112346 A CN96112346 A CN 96112346A CN 1097270 C CN1097270 C CN 1097270C
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CN
China
Prior art keywords
magnetic
magnet powder
soft magnet
oxidation
particle
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Expired - Lifetime
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CN96112346A
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English (en)
Chinese (zh)
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CN1149747A (zh
Inventor
吉田荣吉
佐藤光晴
菅原英州
岛田宽
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Tokin Corp
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NEC Tokin Corp
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Application filed by NEC Tokin Corp filed Critical NEC Tokin Corp
Publication of CN1149747A publication Critical patent/CN1149747A/zh
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/28—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)
  • Aerials With Secondary Devices (AREA)
CN96112346A 1995-09-22 1996-09-20 一种电磁干扰抑制磁性复合材料及其制造方法 Expired - Lifetime CN1097270C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7244096A JPH0993034A (ja) 1995-09-22 1995-09-22 複合磁性体及びその製造方法ならびに電磁干渉抑制体
JP244096/95 1995-09-22

Publications (2)

Publication Number Publication Date
CN1149747A CN1149747A (zh) 1997-05-14
CN1097270C true CN1097270C (zh) 2002-12-25

Family

ID=17113698

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96112346A Expired - Lifetime CN1097270C (zh) 1995-09-22 1996-09-20 一种电磁干扰抑制磁性复合材料及其制造方法

Country Status (9)

Country Link
US (1) US5827445A (enExample)
EP (2) EP0764954B1 (enExample)
JP (1) JPH0993034A (enExample)
KR (1) KR100247444B1 (enExample)
CN (1) CN1097270C (enExample)
DE (2) DE69618252T2 (enExample)
MY (1) MY115205A (enExample)
SG (1) SG48471A1 (enExample)
TW (1) TW304269B (enExample)

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US6972097B2 (en) * 1995-07-20 2005-12-06 Nec Tokin Corporation Composite magnetic material and electromagnetic interference suppressor member using the same
JP3608063B2 (ja) 1996-08-23 2005-01-05 Ｎｅｃトーキン株式会社 Ｅｍｉ対策部品及びそれを備えた能動素子
JP3404618B2 (ja) * 1996-09-02 2003-05-12 エヌイーシートーキン株式会社 電磁干渉抑制体
DE69731727T2 (de) * 1996-09-03 2005-11-10 Nec Tokin Corp., Sendai Verfahren zum herstellen von magnetischer verbundfolie
US6521140B2 (en) * 1996-09-06 2003-02-18 Nec Tokin Corp. Composite magnetic body and electromagnetic interference suppressing body using the same
JP3475386B2 (ja) * 1997-09-01 2003-12-08 Ｎｅｃトーキン株式会社 電磁干渉抑制体
JPH11112229A (ja) * 1997-10-07 1999-04-23 Tokin Corp 複合磁性体，その製造方法，及びそれを用いた電磁干渉抑制体
JPH11214912A (ja) * 1998-01-27 1999-08-06 Tokin Corp 指向性アンテナ
WO2001024205A1 (en) * 1999-09-28 2001-04-05 Tokin Corporation Composite magnetic sheet and method of producing the same
JP2001126910A (ja) * 1999-10-25 2001-05-11 Tokin Corp 複合磁性体、複合磁性体シートおよびそれらの製造方法
US6586046B1 (en) 2000-01-26 2003-07-01 General Electric Company Fluidized bed apparatus and method for treatment of nonspherical, nonequiaxed particles
JP2001210510A (ja) * 2000-01-28 2001-08-03 Tokin Corp 軟磁性粉末及びそれを用いた複合磁性体
JP2001297905A (ja) * 2000-04-17 2001-10-26 Tokin Corp 高周波電流抑制体
KR20020040678A (ko) * 2000-04-17 2002-05-30 하네타 유이치 케이블 등에 쉽게 부착될 수 있는 고주파 전류 억제체 및이를 사용하는 이어폰 시스템
GB0211443D0 (en) * 2002-05-18 2002-06-26 Qinetiq Ltd Microwave absorbent material
US20040041121A1 (en) * 2002-08-30 2004-03-04 Shigeyoshi Yoshida Magnetic loss material and method of producing the same
US6914183B2 (en) * 2002-09-25 2005-07-05 Sumitomo Electric Industries, Ltd. Board for printed wiring
US7868723B2 (en) * 2003-02-26 2011-01-11 Analogic Corporation Power coupling device
US9490063B2 (en) 2003-02-26 2016-11-08 Analogic Corporation Shielded power coupling device
US8350655B2 (en) * 2003-02-26 2013-01-08 Analogic Corporation Shielded power coupling device
US9368272B2 (en) 2003-02-26 2016-06-14 Analogic Corporation Shielded power coupling device
US7625633B2 (en) 2003-03-25 2009-12-01 Shin-Etsu Polymer., Ltd. Electromagnetic noise suppressor, article with electromagnetic noise suppressing function, and their manufacturing methods
JP4010296B2 (ja) * 2003-11-20 2007-11-21 株式会社デンソー 軟磁性粉末材料の製造方法
JP4417377B2 (ja) 2004-02-24 2010-02-17 信越ポリマー株式会社 電磁波ノイズ抑制体、電磁波ノイズ抑制機能付構造体、およびそれらの製造方法
US8134084B2 (en) 2006-06-30 2012-03-13 Shin-Etsu Polymer Co., Ltd. Noise-suppressing wiring-member and printed wiring board
JP4692768B2 (ja) * 2006-12-08 2011-06-01 住友電気工業株式会社 軟磁性複合材料
CN101231707A (zh) * 2007-01-25 2008-07-30 3M创新有限公司 电磁屏蔽装置
US9972913B2 (en) 2009-12-15 2018-05-15 Asahi Kasei Fibers Corporation Noise absorbing fabric
JP2011129798A (ja) * 2009-12-21 2011-06-30 Mitsumi Electric Co Ltd 高周波用磁性材料、高周波デバイス及び磁性粒子
JP4692859B2 (ja) * 2010-08-19 2011-06-01 住友電気工業株式会社 リアクトル
DE102014215318A1 (de) * 2014-08-04 2016-02-04 Siemens Aktiengesellschaft Anisotrop weichmagnetisches Komposit-Material mit hoher Anisotropie der Permeabilität zur Unterdrückung von Querfluss und dessen Herstellung
US11229147B2 (en) 2015-02-06 2022-01-18 Laird Technologies, Inc. Thermally-conductive electromagnetic interference (EMI) absorbers with silicon carbide
US10287413B2 (en) 2016-12-19 2019-05-14 3M Innovative Properties Company Thermoplastic polymer composite containing soft, ferromagnetic particulate material and methods of making thereof
CN111357061B (zh) 2017-11-16 2022-04-12 3M创新有限公司 包含介电粒子的聚合物基质复合材料及其制备方法
US10927228B2 (en) 2017-11-16 2021-02-23 3M Innovative Properties Company Polymer matrix composites comprising intumescent particles and methods of making the same
CN111491991A (zh) 2017-11-16 2020-08-04 3M创新有限公司 制备聚合物基质复合材料的方法
US10836873B2 (en) 2017-11-16 2020-11-17 3M Innovative Properties Company Polymer matrix composites comprising thermally insulating particles and methods of making the same
JP7308828B2 (ja) 2017-11-16 2023-07-14 スリーエム イノベイティブ プロパティズ カンパニー 機能性粒子を含むポリマーマトリックス複合体及びその製造方法
US10913834B2 (en) 2017-11-16 2021-02-09 3M Innovative Properties Company Polymer matrix composites comprising indicator particles and methods of making the same
WO2019099011A1 (en) * 2017-11-16 2019-05-23 Georgia Tech Research Corporation Substrate-compatible inductors with magnetic layers
CN113840868A (zh) 2019-05-15 2021-12-24 3M创新有限公司 包含导热颗粒和磁性颗粒的(共)聚合物基质复合材料及其制备方法
KR102771530B1 (ko) * 2019-07-19 2025-02-20 현대자동차주식회사 자기유변 탄성체

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DE1024647B (de) * 1954-11-24 1958-02-20 Deutsche Edelstahlwerke Ag Ferromagnetische Bestandteile enthaltender, magnetisch haftender, biegsamer Formkoerper
FR1152152A (fr) * 1956-03-20 1958-02-12 Thomson Houston Comp Francaise Matière anti-réflectrice absorbant les ondes hertziennes
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JPS62221199A (ja) * 1986-03-24 1987-09-29 株式会社　リケン 磁気シ−ルド材
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US5352268A (en) * 1989-12-12 1994-10-04 Hitachi Metals, Ltd. Fe-Ni alloy fine powder of flat shape
US5207841A (en) * 1990-04-12 1993-05-04 Tdk Corporation Soft magnetic powder and magnetic shield composition
JPH04276002A (ja) * 1991-02-28 1992-10-01 Hitachi Metals Ltd 扁平状軟磁性Ｆｅ−Ｃｏ合金微粉末
DE4124458A1 (de) * 1991-07-24 1993-01-28 Degussa Emi-abschirmpigmente, verfahren zu deren herstellung und deren verwendung
JP3401650B2 (ja) * 1994-01-20 2003-04-28 エヌイーシートーキン株式会社 電磁波干渉抑制体
FI117224B (fi) * 1994-01-20 2006-07-31 Nec Tokin Corp Sähkömagneettinen häiriönpoistokappale, ja sitä soveltavat elektroninen laite ja hybridimikropiirielementti

Also Published As

Publication number Publication date
SG48471A1 (en) 1998-04-17
EP0951023A2 (en) 1999-10-20
CN1149747A (zh) 1997-05-14
EP0951023A3 (en) 1999-11-03
EP0951023B1 (en) 2001-12-19
EP0764954B1 (en) 2000-06-21
EP0764954A1 (en) 1997-03-26
US5827445A (en) 1998-10-27
DE69608933D1 (de) 2000-07-27
KR100247444B1 (ko) 2000-03-15
JPH0993034A (ja) 1997-04-04
DE69608933T2 (de) 2000-11-16
DE69618252D1 (de) 2002-01-31
MY115205A (en) 2003-04-30
TW304269B (enExample) 1997-05-01
DE69618252T2 (de) 2002-08-22
KR970017717A (ko) 1997-04-30

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C06 Publication
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SE01 Entry into force of request for substantive examination
C56 Change in the name or address of the patentee

Owner name: NEC TOKIN CORP.

Free format text: FORMER NAME OR ADDRESS: TOKIN CORPORATION

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Patentee after: NEC Tokin Corp.

Patentee before: Tokin Corporation

C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20021225

EXPY Termination of patent right or utility model