ATE400536T1 - Magnetisches ferritmaterial - Google Patents

Magnetisches ferritmaterial

Info

Publication number
ATE400536T1
ATE400536T1 AT06026194T AT06026194T ATE400536T1 AT E400536 T1 ATE400536 T1 AT E400536T1 AT 06026194 T AT06026194 T AT 06026194T AT 06026194 T AT06026194 T AT 06026194T AT E400536 T1 ATE400536 T1 AT E400536T1
Authority
AT
Austria
Prior art keywords
main phase
ferrite
magnetic material
ferrite material
magnetic ferrite
Prior art date
Application number
AT06026194T
Other languages
German (de)
English (en)
Inventor
Yoshihiko Minachi
Noboru Ito
Yuuki Aburakawa
Yoshinori Fujikawa
Satoko Ueda
Original Assignee
Tdk 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37909357&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE400536(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tdk Corp filed Critical Tdk Corp
Application granted granted Critical
Publication of ATE400536T1 publication Critical patent/ATE400536T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/6261—Milling
    • C04B35/6262—Milling of calcined, sintered clinker or ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • 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
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • 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
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • 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
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • 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
    • C04B2235/3277—Co3O4
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5409—Particle size related information expressed by specific surface values
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate

Landscapes

  • 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)
AT06026194T 2005-12-19 2006-12-18 Magnetisches ferritmaterial ATE400536T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005364225 2005-12-19
JP2006302328 2006-11-08

Publications (1)

Publication Number Publication Date
ATE400536T1 true ATE400536T1 (de) 2008-07-15

Family

ID=37909357

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06026194T ATE400536T1 (de) 2005-12-19 2006-12-18 Magnetisches ferritmaterial

Country Status (6)

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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4078566B2 (ja) * 2005-11-25 2008-04-23 日立金属株式会社 酸化物磁性材料及びその製造方法、並びにフェライト焼結磁石及びその製造方法
EP1968077A4 (en) * 2005-12-28 2009-04-15 Hitachi Metals Ltd MAGNETIC OXIDE MATERIAL
TWI433433B (zh) * 2006-03-10 2014-04-01 Hitachi Metals Ltd 黏結磁鐵及磁力輥
EP2043112B1 (en) * 2007-03-01 2015-04-08 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
CN104022320A (zh) 2008-10-20 2014-09-03 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
EP3150567B1 (en) * 2009-07-08 2025-11-19 TDK Corporation Ferrite magnetic material
WO2011111756A1 (ja) * 2010-03-10 2011-09-15 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
WO2012090935A1 (ja) * 2010-12-28 2012-07-05 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
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
WO2014021426A1 (ja) * 2012-08-01 2014-02-06 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
KR101836964B1 (ko) * 2012-08-31 2018-03-09 히타치 긴조쿠 가부시키가이샤 페라이트 하소체, 페라이트 소결 자석의 제조 방법 및 페라이트 소결 자석
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
WO2017200091A1 (ja) * 2016-05-20 2017-11-23 Tdk株式会社 フェライト磁石
JP6863374B2 (ja) 2016-05-20 2021-04-21 Tdk株式会社 フェライト磁石
CN110114844A (zh) 2016-12-22 2019-08-09 Tdk株式会社 铁氧体烧结磁铁、铁氧体颗粒、粘结磁铁、电动机和发电机
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

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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
DE69824362T2 (de) 1997-02-25 2005-06-16 Tdk Corp. Magnetisches Oxidmaterial, Ferritteilchen, gesinterter Magnet, Verbundmagnet, magnetischer Aufzeichnungsträger und Motor
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
WO1999016087A1 (en) * 1997-09-19 1999-04-01 Tdk Corporation Magnet powder, sintered magnet, method of manufacturing these materials, bonded magnet, motor, and magnetic recording medium
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JP3181559B2 (ja) 1997-09-19 2001-07-03 ティーディーケイ株式会社 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
DE69942213D1 (de) * 1998-01-23 2010-05-12 Hitachi Metals Ltd Verbundmagnet, Herstellungsverfahren dafür und Magnetrolle
WO2000031756A1 (en) * 1998-11-26 2000-06-02 Sumitomo Special Metals Co., Ltd. Ferrite magnet powder and magnet using said magnet powder, and method for preparing them
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
US7906036B2 (en) 2003-09-12 2011-03-15 Neomax Co., Ltd. Ferrite sintered magnet
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
JP4078566B2 (ja) * 2005-11-25 2008-04-23 日立金属株式会社 酸化物磁性材料及びその製造方法、並びにフェライト焼結磁石及びその製造方法

Also Published As

Publication number Publication date
KR100839206B1 (ko) 2008-06-17
US20070138432A1 (en) 2007-06-21
KR20070065233A (ko) 2007-06-22
JP2008137879A (ja) 2008-06-19
HK1106969A1 (zh) 2008-03-20
EP1798211B1 (en) 2008-07-09
EP1798211A1 (en) 2007-06-20
JP5245249B2 (ja) 2013-07-24
US7919007B2 (en) 2011-04-05
DE602006001723D1 (de) 2008-08-21

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