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

Info

Publication number: CN1097270C
Authority: CN; China
Prior art keywords: magnetic; magnet powder; soft magnet; oxidation; particle
Prior art date: 1995-09-22
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

CN96112346A

Other languages

English (en)

Chinese (zh)

Other versions

CN1149747A (zh

Inventor

吉田荣吉

佐藤光晴

菅原英州

岛田宽

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Tokin Corp

Original Assignee

NEC Tokin Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1995-09-22

Filing date

1996-09-20

Publication date

2002-12-25

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17113698&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN1097270(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1996-09-20 Application filed by NEC Tokin Corp filed Critical NEC Tokin Corp

1997-05-14 Publication of CN1149747A publication Critical patent/CN1149747A/zh

2002-12-25 Application granted granted Critical

2002-12-25 Publication of CN1097270C publication Critical patent/CN1097270C/zh

2016-09-20 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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Images

Classifications

- 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

Landscapes

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 (2)
EP (2)	EP0764954B1 (2)
JP (1)	JPH0993034A (2)
KR (1)	KR100247444B1 (2)
CN (1)	CN1097270C (2)
DE (2)	DE69608933T2 (2)
MY (1)	MY115205A (2)
SG (1)	SG48471A1 (2)
TW (1)	TW304269B (2)

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JPH0935927A (ja) *	1995-07-20	1997-02-07	Tokin Corp	複合磁性体及びそれを用いた電磁干渉抑制体
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
WO1998009788A1 (en) *	1996-09-03	1998-03-12	Tokin Corporation	Method of manufacturing composite magnetic sheet
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
EP1133780B1 (en) *	1999-09-28	2003-05-02	NEC 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
WO2001080616A2 (en) *	2000-04-17	2001-10-25	Tokin Corporation	High-frequency current supressor capable of being readily attached to cable or the like and earphone system using the same
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
US9368272B2 (en)	2003-02-26	2016-06-14	Analogic Corporation	Shielded power coupling device
US8350655B2 (en) *	2003-02-26	2013-01-08	Analogic Corporation	Shielded power coupling device
US9490063B2 (en)	2003-02-26	2016-11-08	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
KR102722514B1 (ko)	2017-11-16	2024-10-29	쓰리엠 이노베이티브 프로퍼티즈 캄파니	중합체 매트릭스 복합재의 제조 방법
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
JP2021503718A (ja) *	2017-11-16	2021-02-12	ジョージアテックリサーチコーポレイション	磁性層を有する基板対応インダクタ
US11732104B2 (en)	2017-11-16	2023-08-22	3M Innovative Properties Company	Polymer matrix composites comprising dielectric particles and methods of making the same
US10913834B2 (en)	2017-11-16	2021-02-09	3M Innovative Properties Company	Polymer matrix composites comprising indicator particles and methods of making the same
US10927228B2 (en)	2017-11-16	2021-02-23	3M Innovative Properties Company	Polymer matrix composites comprising intumescent particles and methods of making the same
WO2019097446A1 (en)	2017-11-16	2019-05-23	3M Innovative Properties Company	Polymer matrix composites comprising functional particles and methods of making the same
EP3969508A1 (en)	2019-05-15	2022-03-23	3M Innovative Properties Company	(co)polymer matrix composites comprising thermally-conductive particles and magnetic particles and methods of making the same
KR102771530B1 (ko) *	2019-07-19	2025-02-20	현대자동차주식회사	자기유변 탄성체

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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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DE4124458A1 (de) *	1991-07-24	1993-01-28	Degussa	Emi-abschirmpigmente, verfahren zu deren herstellung und deren verwendung
FI117224B (fi) *	1994-01-20	2006-07-31	Nec Tokin Corp	Sähkömagneettinen häiriönpoistokappale, ja sitä soveltavat elektroninen laite ja hybridimikropiirielementti
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

1995
- 1995-09-22 JP JP7244096A patent/JPH0993034A/ja active Pending
1996
- 1996-09-17 US US08/714,805 patent/US5827445A/en not_active Expired - Lifetime
- 1996-09-17 DE DE69608933T patent/DE69608933T2/de not_active Expired - Lifetime
- 1996-09-17 EP EP96114895A patent/EP0764954B1/en not_active Expired - Lifetime
- 1996-09-17 EP EP99114943A patent/EP0951023B1/en not_active Expired - Lifetime
- 1996-09-17 DE DE69618252T patent/DE69618252T2/de not_active Expired - Lifetime
- 1996-09-18 MY MYPI96003855A patent/MY115205A/en unknown
- 1996-09-20 SG SG1996010660A patent/SG48471A1/en unknown
- 1996-09-20 CN CN96112346A patent/CN1097270C/zh not_active Expired - Lifetime
- 1996-09-20 TW TW085111510A patent/TW304269B/zh not_active IP Right Cessation
- 1996-09-20 KR KR1019960041006A patent/KR100247444B1/ko not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0764954A1 (en)	1997-03-26
DE69608933T2 (de)	2000-11-16
EP0951023B1 (en)	2001-12-19
JPH0993034A (ja)	1997-04-04
SG48471A1 (en)	1998-04-17
DE69618252D1 (de)	2002-01-31
DE69618252T2 (de)	2002-08-22
EP0951023A3 (en)	1999-11-03
KR100247444B1 (ko)	2000-03-15
EP0951023A2 (en)	1999-10-20
MY115205A (en)	2003-04-30
EP0764954B1 (en)	2000-06-21
CN1149747A (zh)	1997-05-14
DE69608933D1 (de)	2000-07-27
TW304269B (2)	1997-05-01
KR970017717A (ko)	1997-04-30
US5827445A (en)	1998-10-27

Legal Events

Date	Code	Title	Description
1997-05-14	C06	Publication
1997-05-14	PB01	Publication
1998-07-01	C10	Entry into substantive examination
1998-07-01	SE01	Entry into force of request for substantive examination
2002-10-30	C56	Change in the name or address of the patentee	Owner name: NEC TOKIN CORP. Free format text: FORMER NAME OR ADDRESS: TOKIN CORPORATION
2002-10-30	CP01	Change in the name or title of a patent holder	Patentee after: NEC Tokin Corp. Patentee before: Tokin Corporation
2002-12-25	C14	Grant of patent or utility model
2002-12-25	GR01	Patent grant
2016-11-02	CX01	Expiry of patent term	Granted publication date: 20021225
2016-11-02	EXPY	Termination of patent right or utility model

Publication	Publication Date	Title
CN1097270C (zh)	2002-12-25	一种电磁干扰抑制磁性复合材料及其制造方法
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CN1135574C (zh)	2004-01-21	复合磁性材料及其制造方法和应用
CN1075339C (zh)	2001-11-21	电磁穿透性和反射性低的电磁干扰抑制体及其电子装置
CN1146926C (zh)	2004-04-21	电磁和磁屏蔽用软磁合金粉末,包含该粉末的屏蔽部件
CN1492452A (zh)	2004-04-28	磁损材料及其生产方法
CN1180440C (zh)	2004-12-15	在电缆外鞘上形成有吸收噪声的高损耗磁膜的信号传输电缆
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