KR100839206B1 - 페라이트 자성재료 - Google Patents

페라이트 자성재료 Download PDF

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KR100839206B1
KR100839206B1 KR1020060129402A KR20060129402A KR100839206B1 KR 100839206 B1 KR100839206 B1 KR 100839206B1 KR 1020060129402 A KR1020060129402 A KR 1020060129402A KR 20060129402 A KR20060129402 A KR 20060129402A KR 100839206 B1 KR100839206 B1 KR 100839206B1
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South Korea
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ferrite
magnetic material
ferrite magnetic
hcj
powder
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Korean (ko)
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KR20070065233A (ko
Inventor
요시히코 미나치
노보루 이토
유우키 아부라카와
요시노리 후지카와
사토코 우에다
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티디케이가부시기가이샤
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
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    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/605—Making or treating the green body or pre-form in a magnetic field
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Ceramics (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
KR1020060129402A 2005-12-19 2006-12-18 페라이트 자성재료 Ceased KR100839206B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2005364225 2005-12-19
JPJP-P-2005-00364225 2005-12-19
JP2006302328 2006-11-08
JPJP-P-2006-00302328 2006-11-08

Publications (2)

Publication Number Publication Date
KR20070065233A KR20070065233A (ko) 2007-06-22
KR100839206B1 true KR100839206B1 (ko) 2008-06-17

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ID=37909357

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KR1020060129402A Ceased KR100839206B1 (ko) 2005-12-19 2006-12-18 페라이트 자성재료

Country Status (6)

Country Link
US (1) US7919007B2 (enExample)
EP (1) EP1798211B1 (enExample)
JP (1) JP5245249B2 (enExample)
KR (1) KR100839206B1 (enExample)
AT (1) ATE400536T1 (enExample)
DE (1) DE602006001723D1 (enExample)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0618960B1 (pt) * 2005-11-25 2022-04-05 Hitachi Metals, Ltd Métodos para a produção de um magneto de ferrita sinterizado
EP2378519A1 (en) * 2005-12-28 2011-10-19 Hitachi Metals, Ltd. Oxide magnetic material
JP4952957B2 (ja) * 2006-03-10 2012-06-13 日立金属株式会社 回転機、ボンド磁石、マグネットロール、及びフェライト焼結磁石の製造方法
US8980116B2 (en) * 2007-03-01 2015-03-17 Tdk Corporation Ferrite sintered magnet
JP5309466B2 (ja) * 2007-04-17 2013-10-09 日立金属株式会社 磁気記録媒体用フェライト粒子
JP5578777B2 (ja) * 2007-09-28 2014-08-27 Ｄｏｗａエレクトロニクス株式会社 ボンド磁石用フェライト粉末およびその製造方法、並びに、これを用いたボンド磁石
JP5408521B2 (ja) * 2007-11-14 2014-02-05 日立金属株式会社 焼結磁石の製造方法
US8524190B2 (en) * 2008-05-30 2013-09-03 Skyworks Solutions, Inc. Enhanced hexagonal ferrite material and methods of preparation and use thereof
JP5521287B2 (ja) * 2008-06-18 2014-06-11 日立金属株式会社 磁気記録媒体用フェライト粒子
KR101045781B1 (ko) * 2008-08-12 2011-07-04 주식회사 이엠따블유 저투자손실을 가지는 니켈 망간 코발트 스피넬 페라이트 제조 방법 및 이에 의해 제조된 니켈 망간 코발트 스피넬 페라이트
CN105977590A (zh) 2008-10-20 2016-09-28 斯盖沃克斯瑟路申斯公司 磁-介电组件及制造方法
KR101649242B1 (ko) 2009-06-30 2016-08-18 히타치 긴조쿠 가부시키가이샤 페라이트 소결 자석의 제조 방법 및 페라이트 소결 자석
KR20120041744A (ko) * 2009-07-08 2012-05-02 티디케이가부시기가이샤 페라이트 자성 재료
JP4883334B2 (ja) * 2010-03-10 2012-02-22 日立金属株式会社 フェライト焼結磁石及びその製造方法
JP5499329B2 (ja) * 2010-06-18 2014-05-21 日立金属株式会社 フェライト焼結磁石及びその製造方法
CN102010194B (zh) * 2010-11-03 2013-01-16 自贡市江阳磁材有限责任公司 一种磁铅石型永磁铁氧体及其制造方法
US8609062B2 (en) 2010-12-07 2013-12-17 Skyworks Solutions, Inc. Specialty materials processing techniques for enhanced resonant frequency hexaferrite materials for antenna applications and other electronic devices
KR101858484B1 (ko) * 2010-12-28 2018-06-27 히타치 긴조쿠 가부시키가이샤 페라이트 소결 자석 및 그 제조 방법
WO2012103020A2 (en) * 2011-01-24 2012-08-02 Skyworks Solutions, Inc. Specialty materials processing techniques for enhanced resonant frequency hexaferrite materials for antenna applications and other electronic devices
JP5732979B2 (ja) * 2011-03-31 2015-06-10 Tdk株式会社 フェライト焼結磁石及びモータ
JP6160619B2 (ja) * 2012-08-01 2017-07-12 Tdk株式会社 フェライト磁性材料、フェライト焼結磁石及びモータ
WO2014034401A1 (ja) * 2012-08-31 2014-03-06 日立金属株式会社 フェライト仮焼体、フェライト焼結磁石の製造方法及びフェライト焼結磁石
KR101836965B1 (ko) * 2012-09-28 2018-03-09 히타치 긴조쿠 가부시키가이샤 페라이트 소결 자석 및 그 제조 방법
JP6070454B2 (ja) * 2013-07-18 2017-02-01 日立金属株式会社 フェライト化合物
US11417447B2 (en) 2016-05-20 2022-08-16 Tdk Corporation Ferrite magnet
WO2017200091A1 (ja) * 2016-05-20 2017-11-23 Tdk株式会社 フェライト磁石
US11810699B2 (en) 2016-12-22 2023-11-07 Tdk Corporation Ferrite sintered magnet, ferrite particles, bonded magnet, motor, and generator
FR3066041B1 (fr) * 2017-05-04 2020-02-28 Thales Circulateur hyperfrequence miniature autopolarise
JP7287371B2 (ja) * 2020-09-24 2023-06-06 株式会社プロテリアル フェライト仮焼体、フェライト焼結磁石及びその製造方法
JP7716352B2 (ja) * 2021-03-24 2025-07-31 Tdk株式会社 フェライト焼結磁石、フェライト粒子、ボンド磁石、及び、回転電気機械
CN113277841B (zh) * 2021-05-28 2022-01-07 湖北华磁电子科技有限公司 超高频软磁铁氧体材料及磁芯的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000223307A (ja) * 1997-09-19 2000-08-11 Tdk Corp 酸化物磁性材料、フェライト粒子、ボンディット磁石、焼結磁石、これらの製造方法および磁気記録媒体

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3157142B2 (ja) 1997-02-25 2001-04-16 ティーディーケイ株式会社 焼結磁石およびモータ
CN1155022C (zh) * 1997-02-25 2004-06-23 Tdk株式会社 氧化物磁性材料、铁氧体颗粒、烧结磁体、粘结磁体、磁记录介质和电机
JP3163279B2 (ja) 1997-02-25 2001-05-08 ティーディーケイ株式会社 焼結磁石およびモータ
EP0940823B1 (en) * 1997-09-19 2008-03-05 TDK Corporation Sintered magnet
EP0940824B2 (en) * 1997-09-19 2014-06-11 TDK Corporation Magnet powder, sintered magnet, method of manufacturing these materials, bonded magnet, motor, and magnetic recording medium
KR100394608B1 (ko) * 1998-01-23 2003-08-14 히다찌긴조꾸가부시끼가이사 본드 자석, 마그네트 롤 및 그 것들에 사용되는 페라이트 분말 및 그 것들의 제조 방법
JP3957458B2 (ja) * 1998-11-26 2007-08-15 株式会社Ｎｅｏｍａｘ フェライト磁石粉末の製造方法および磁石の製造方法
US6936565B2 (en) * 1999-01-12 2005-08-30 Hyperion Catalysis International, Inc. Modified carbide and oxycarbide containing catalysts and methods of making and using thereof
JP2001135512A (ja) * 1999-11-08 2001-05-18 Sumitomo Special Metals Co Ltd フェライト磁石粉末および該磁石粉末を用いた磁石およびそれらの製造方法
JP3833861B2 (ja) 1999-12-27 2006-10-18 Ｔｄｋ株式会社 酸化物磁性体の製造方法
FR2831317B1 (fr) 2001-10-19 2004-10-15 Ugimag Sa Aimants de type ferrite economiques et a proprietes ameliorees
CN102945718B (zh) 2003-09-12 2016-03-30 日立金属株式会社 铁氧体烧结磁铁
JP2005294330A (ja) 2004-03-31 2005-10-20 Tdk Corp フェライト磁石の製造方法
JP4919636B2 (ja) 2004-09-10 2012-04-18 日立金属株式会社 酸化物磁性材料および焼結磁石
JP2006165364A (ja) 2004-12-09 2006-06-22 Tdk Corp フェライト永久磁石及びその製造方法
WO2007007781A1 (ja) * 2005-07-12 2007-01-18 Japan Science And Technology Agency ブルーベリー葉の加工処理物の新規用途
BRPI0618960B1 (pt) * 2005-11-25 2022-04-05 Hitachi Metals, Ltd Métodos para a produção de um magneto de ferrita sinterizado

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000223307A (ja) * 1997-09-19 2000-08-11 Tdk Corp 酸化物磁性材料、フェライト粒子、ボンディット磁石、焼結磁石、これらの製造方法および磁気記録媒体

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