BRPI0414278A - ìmã de ferrita sinterizada - Google Patents

ìmã de ferrita sinterizada

Info

Publication number
BRPI0414278A
BRPI0414278A BRPI0414278-0A BRPI0414278A BRPI0414278A BR PI0414278 A BRPI0414278 A BR PI0414278A BR PI0414278 A BRPI0414278 A BR PI0414278A BR PI0414278 A BRPI0414278 A BR PI0414278A
Authority
BR
Brazil
Prior art keywords
ferrite magnet
sintered ferrite
sintered
ferrita
obey
Prior art date
Application number
BRPI0414278-0A
Other languages
English (en)
Inventor
Takashi Takami
Yasunobu Ogata
Original Assignee
Neomax Co Ltd
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
Application filed by Neomax Co Ltd filed Critical Neomax Co Ltd
Publication of BRPI0414278A publication Critical patent/BRPI0414278A/pt

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
    • C04B35/622—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
    • C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
    • 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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/10—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3229—Cerium 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
    • C04B2235/767—Hexagonal symmetry, e.g. beta-Si3N4, beta-Sialon, alpha-SiC or hexa-ferrites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

"ìMã DE FERRITA SINTERIZADA". A presente invenção refere-se a ímã de ferrita sinterizada tendo uma composição básica representada pela fórmula geral : A~ 1-x-y+a~CA~ x+b~R~ y+c~Fe~ 2n-z~Co~ z+d~O~ 19~ (razão atómica), em que a, b, c e d representam as quantidades de um elemento A, Ca, elemento R e Co adicionados na etapa de pulverização de um material magnético de óxido, numerais esses que obedecem as condições de 0,03 <243> x <243> 0,4, 0,1 <243> y <243> 0,6,O <243> z <243> 0,4,4 <243> n <243> 10, x+y < 1,0,03 <243> x+b <243> 0,4,0,1 <243> y+c <243> 0,6,0,1 <243> z+d <243> 0,4,0,50 <243>¢(1x-y+a)/(l-y+a+b)! <243> 0,97,1,1 <243> (y+c)/(z+d) <243> 1,8,1,0 <243> (y+c)/x <243> 20, e 0,1 <243> x/(z+d) <243> 1,2.
BRPI0414278-0A 2003-09-12 2004-09-13 ìmã de ferrita sinterizada BRPI0414278A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003321988 2003-09-12
JP2004058098 2004-03-02
PCT/JP2004/013339 WO2005027153A1 (ja) 2003-09-12 2004-09-13 フェライト焼結磁石

Publications (1)

Publication Number Publication Date
BRPI0414278A true BRPI0414278A (pt) 2006-11-07

Family

ID=34315670

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0414278-0A BRPI0414278A (pt) 2003-09-12 2004-09-13 ìmã de ferrita sinterizada

Country Status (6)

Country Link
US (1) US7906036B2 (pt)
EP (1) EP1667176B1 (pt)
JP (1) JP4367649B2 (pt)
CN (1) CN102945718B (pt)
BR (1) BRPI0414278A (pt)
WO (1) WO2005027153A1 (pt)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4215261B2 (ja) * 2004-10-29 2009-01-28 Ｔｄｋ株式会社 フェライト磁性材料及びその製造方法
ATE508100T1 (de) * 2005-11-25 2011-05-15 Hitachi Metals Ltd Magnetisches material auf oxidbasis, herstellungsverfahren dafür, gesinterter ferritmagnet und herstellungsverfahren dafür
US7919007B2 (en) 2005-12-19 2011-04-05 Tdk Corporation Ferrite magnetic material
JP4254897B2 (ja) * 2005-12-28 2009-04-15 日立金属株式会社 酸化物磁性材料
US8303837B2 (en) * 2006-03-10 2012-11-06 Hitachi Metals, Ltd. Rotating machine, bonded magnet, magnet roll, and method for producing sintered ferrite magnet
JP4820312B2 (ja) * 2006-03-31 2011-11-24 Ｄｏｗａエレクトロニクス株式会社 ボンド磁石用フェライト磁性粉およびその製造方法、並びにボンド磁石
US9047164B2 (en) * 2006-09-12 2015-06-02 Opshub, Inc. Calculating defect density by file and source module
KR101131795B1 (ko) 2007-03-01 2012-03-30 티디케이가부시기가이샤 페라이트 소결 자석
JP5358998B2 (ja) * 2007-03-28 2013-12-04 日立金属株式会社 フェライト焼結磁石の製造方法
KR101385869B1 (ko) 2007-03-30 2014-04-17 도다 고교 가부시끼가이샤 본드 자석용 페라이트 입자 분말, 본드 자석용 수지 조성물및 이들을 이용한 성형체
WO2008146712A1 (ja) * 2007-05-25 2008-12-04 Hitachi Metals, Ltd. フェライト焼結磁石及びその製造方法、並びに仮焼体及びその製造方法
JP4640432B2 (ja) * 2008-03-31 2011-03-02 Ｔｄｋ株式会社 フェライト焼結磁石
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
CN102471162B (zh) * 2009-07-08 2016-05-04 Tdk株式会社 铁氧体磁性材料
JP5521622B2 (ja) * 2010-02-19 2014-06-18 日立金属株式会社 酸化物磁性材料、フェライト焼結磁石及びフェライト焼結磁石の製造方法
KR101259331B1 (ko) 2010-03-10 2013-05-06 히타치 긴조쿠 가부시키가이샤 페라이트 소결 자석 및 그 제조 방법
JP5120467B2 (ja) * 2010-03-17 2013-01-16 Ｔｄｋ株式会社 フェライト磁性材料、フェライト磁石、フェライト焼結磁石
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
CN101894648B (zh) * 2010-07-02 2012-10-31 北矿磁材科技股份有限公司 粘结铁氧体磁粉及其制备方法及粘结磁体
JP5804370B2 (ja) * 2010-09-14 2015-11-04 日立金属株式会社 酸化物磁性材料の製造方法
CN102005277B (zh) * 2010-09-30 2012-08-22 广州金南磁性材料有限公司 一种应力场取向各向异性可挠性粘结钕铁硼磁体及其制备方法
KR101082389B1 (ko) 2011-05-31 2011-11-11 쌍용머티리얼 주식회사 마그네토플럼바이트형 페라이트 자성재료 및 이로부터 유도된 세그멘트형 영구자석
JP6119752B2 (ja) * 2012-08-31 2017-04-26 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
CN105122389B (zh) 2013-04-03 2019-09-27 户田工业株式会社 粘结磁体用铁氧体颗粒粉末、粘结磁体用树脂组合物以及使用它们的成型体
CN104230323B (zh) * 2013-06-24 2016-12-28 广东江粉磁材股份有限公司 M型钙镧钴永磁铁氧体及其制备方法
CN104230322A (zh) * 2013-06-24 2014-12-24 广东江粉磁材股份有限公司 M型钙永磁铁氧体及其制备方法
CN104230321B (zh) * 2013-06-24 2017-06-16 广东江粉磁材股份有限公司 M型钙永磁铁氧体及其制备方法
WO2015025589A1 (ja) * 2013-08-22 2015-02-26 株式会社村田製作所 酸化物セラミックス、及びセラミック電子部品
CN105637601B (zh) 2013-10-02 2018-03-16 户田工业株式会社 粘结磁体用铁氧体颗粒粉末、粘结磁体用树脂组合物以及使用它们的成型体
WO2015178080A1 (ja) * 2014-05-21 2015-11-26 株式会社村田製作所 酸化物セラミックス、及びセラミック電子部品
US11118140B2 (en) 2014-08-29 2021-09-14 Ecolab Usa Inc. Solid rinse aid composition comprising polyacrylic acid
KR102588231B1 (ko) * 2016-06-20 2023-10-13 유니온머티리얼 주식회사 페라이트 자성재료 및 페라이트 소결자석
JP7000954B2 (ja) * 2018-03-28 2022-01-19 Tdk株式会社 フェライト焼結磁石
JP2020129579A (ja) 2019-02-07 2020-08-27 Tdk株式会社 フェライト焼結磁石
CN110372365A (zh) * 2019-07-16 2019-10-25 横店集团东磁股份有限公司 一种永磁铁氧体材料的制备方法
CN117727518A (zh) * 2020-03-24 2024-03-19 株式会社博迈立铖 煅烧铁氧体和烧结铁氧体磁体及其制备方法
JP6927404B1 (ja) * 2020-03-24 2021-08-25 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及びその製造方法
JP7347296B2 (ja) * 2020-03-30 2023-09-20 Tdk株式会社 フェライト焼結磁石および回転電気機械
CN115385679B (zh) * 2022-08-30 2023-08-11 西南应用磁学研究所(中国电子科技集团公司第九研究所) 一种高剩磁比高矫顽力低铁磁共振线宽锶铁氧体材料及其制备方法
CN117185796A (zh) * 2023-09-25 2023-12-08 浙江凯文磁钢有限公司 一种二元配方制造m型永磁铁氧体材料的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139766A (en) * 1997-02-25 2000-10-31 Tdk Corporation Oxide magnetic material, ferrite particle, sintered magnet, bonded magnet, magnetic recording medium and motor
CN1239578A (zh) * 1997-09-19 1999-12-22 Tdk株式会社 磁体粉末、烧结磁体,其制造工艺、粘结磁体、马达和磁记录介质
JP4647731B2 (ja) * 1997-09-19 2011-03-09 Ｔｄｋ株式会社 磁石粉末、焼結磁石、それらの製造方法、ボンディッド磁石および磁気記録媒体
DE69839208T2 (de) * 1997-09-19 2009-03-12 Tdk Corp. Sintermagnet
JP3488416B2 (ja) * 1999-07-07 2004-01-19 Ｔｄｋ株式会社 フェライト磁石の製造方法
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
JP3935325B2 (ja) 2000-07-28 2007-06-20 Ｔｄｋ株式会社 フェライト磁石の製造方法

Also Published As

Publication number Publication date
JP4367649B2 (ja) 2009-11-18
US20060284136A1 (en) 2006-12-21
EP1667176B1 (en) 2016-03-23
EP1667176A4 (en) 2009-12-16
CN102945718A (zh) 2013-02-27
EP1667176A1 (en) 2006-06-07
CN102945718B (zh) 2016-03-30
WO2005027153A1 (ja) 2005-03-24
JPWO2005027153A1 (ja) 2007-11-08
US7906036B2 (en) 2011-03-15

Similar Documents

Publication Publication Date Title
BRPI0414278A (pt) ìmã de ferrita sinterizada
BRPI0508979A (pt) material magnético de óxido e magneto sinterizado
TW200721203A (en) Oxide magnetic material and method for producing the same, ferrite sintering magnet and method for producing the same
BR0211602A (pt) Material para refrigeração magnética, preparação e aplicação
FR2848850B1 (fr) Nouvelles compositions de particules magnetiques recouvertes de derives gem-bisphosphonates.
DE602006001723D1 (de) Magnetisches Ferritmaterial
BR0010242A (pt) Composições quìmicas que atraem artrópodes
EP1562203A4 (en) R-T-B SINTERED MAGNET AND PROCESS FOR ITS MANUFACTURE
HK1096549A1 (en) Imidazopyridine-derivatives as inducible no-synthase inhibitors
DE50210379D1 (de) Paramagnetische nanopartikel
ATE371937T1 (de) Nanokomposit-magnet und herstellungsverfahren
TW351773B (en) Magneto-optical element
EP1726630A4 (en) ALUMINATE LIGHT AND MANUFACTURING METHOD
DE602004019115D1 (de) Aktive abschirmung für eine schaltung mit magnetisch empfindlichen materialien
BR0117191A (pt) Composições nanoparticuladas de isotretinoina
ATE375512T1 (de) Magnetischer träger für biologische substanzen, verfahren zur seiner produktion und seiner verwendung zur isolierung dieser biologischen substanzen
KR100384929B1 (en) Resin composition for antibacterial and antifungal pipes of waterwork and sewerage, and antibacterial and antifungal pipes of waterwork and sewerage produced by using the same
WO2008146712A1 (ja) フェライト焼結磁石及びその製造方法、並びに仮焼体及びその製造方法
RS20060206A (en) Aminopyridine-derivatives as inducible no-synthase inhibitors
HK1128703A1 (en) Neuroprotective compounds and uses thereof
RS20060196A (en) Imidazopyridine-derivatives as inducible no-synthase inhibitors
WO2007104603A3 (de) Blei-germanium-telluride fuer thermoelektrische anwendungen
WO2008126600A1 (ja) 高周波用磁性体材料及び高周波用回路部品
WO2008081647A1 (ja) 低膨張材料および低膨張材料の製造方法
PL439383A1 (pl) Nanokrystaliczny magnetycznie miękki stop żelaza i kobaltu

Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H01F 1/11 , C04B 35/26

Ipc: C04B 35/26 (2006.01), H01F 1/11 (2006.01), C01G 49

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.