JP4734602B2 - 保存安定性に優れた窒化鉄系磁性粉末 - Google Patents

保存安定性に優れた窒化鉄系磁性粉末 Download PDF

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Publication number
JP4734602B2
JP4734602B2 JP2004369173A JP2004369173A JP4734602B2 JP 4734602 B2 JP4734602 B2 JP 4734602B2 JP 2004369173 A JP2004369173 A JP 2004369173A JP 2004369173 A JP2004369173 A JP 2004369173A JP 4734602 B2 JP4734602 B2 JP 4734602B2
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JP
Japan
Prior art keywords
iron nitride
magnetic powder
powder
magnetic
atomic ratio
Prior art date
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 - Fee Related
Application number
JP2004369173A
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English (en)
Japanese (ja)
Other versions
JP2006179567A (ja
JP2006179567A5 (enExample
Inventor
憲司 正田
宙 木村
岳文 網野
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.)
Dowa Electronics Materials Co Ltd
Original Assignee
Dowa Electronics Materials 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 Dowa Electronics Materials Co Ltd filed Critical Dowa Electronics Materials Co Ltd
Priority to JP2004369173A priority Critical patent/JP4734602B2/ja
Priority to DE602005012223T priority patent/DE602005012223D1/de
Priority to EP05025470A priority patent/EP1675135B1/en
Priority to CN200510137751.9A priority patent/CN1792509B/zh
Priority to US11/311,281 priority patent/US7314666B2/en
Publication of JP2006179567A publication Critical patent/JP2006179567A/ja
Publication of JP2006179567A5 publication Critical patent/JP2006179567A5/ja
Application granted granted Critical
Publication of JP4734602B2 publication Critical patent/JP4734602B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • H01F1/04—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 metals or alloys
    • H01F1/06—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 metals or alloys in the form of particles, e.g. powder
    • H01F1/061—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 metals or alloys in the form of particles, e.g. powder with a protective layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Powder Metallurgy (AREA)
JP2004369173A 2004-12-21 2004-12-21 保存安定性に優れた窒化鉄系磁性粉末 Expired - Fee Related JP4734602B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004369173A JP4734602B2 (ja) 2004-12-21 2004-12-21 保存安定性に優れた窒化鉄系磁性粉末
DE602005012223T DE602005012223D1 (de) 2004-12-21 2005-11-22 Magnetisches Eisennitridpulver mit guter Stabilität beim Lagern
EP05025470A EP1675135B1 (en) 2004-12-21 2005-11-22 Iron nitride system magnetic powder having good storage stability
CN200510137751.9A CN1792509B (zh) 2004-12-21 2005-12-19 保存稳定性出色的氮化铁系磁性粉末
US11/311,281 US7314666B2 (en) 2004-12-21 2005-12-20 Iron nitride system magnetic powder having good storage stability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004369173A JP4734602B2 (ja) 2004-12-21 2004-12-21 保存安定性に優れた窒化鉄系磁性粉末

Publications (3)

Publication Number Publication Date
JP2006179567A JP2006179567A (ja) 2006-07-06
JP2006179567A5 JP2006179567A5 (enExample) 2007-11-22
JP4734602B2 true JP4734602B2 (ja) 2011-07-27

Family

ID=35809741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004369173A Expired - Fee Related JP4734602B2 (ja) 2004-12-21 2004-12-21 保存安定性に優れた窒化鉄系磁性粉末

Country Status (5)

Country Link
US (1) US7314666B2 (enExample)
EP (1) EP1675135B1 (enExample)
JP (1) JP4734602B2 (enExample)
CN (1) CN1792509B (enExample)
DE (1) DE602005012223D1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4769130B2 (ja) * 2006-06-14 2011-09-07 Ｄｏｗａエレクトロニクス株式会社 窒化鉄系磁性粉末およびその製造法並びに磁気記録媒体
US8535634B2 (en) * 2007-05-04 2013-09-17 Advanced Materials Corporation Iron nitride powders for use in magnetic, electromagnetic, and microelectronic devices
WO2014122993A1 (ja) * 2013-02-06 2014-08-14 株式会社日清製粉グループ本社 磁性粒子の製造方法、磁性粒子および磁性体
CN103600069A (zh) * 2013-12-02 2014-02-26 北矿磁材科技股份有限公司 一种磁性金属片形粉表面的处理方法
US10128031B2 (en) * 2014-02-10 2018-11-13 Nisshin Seifun Group Inc. Method for manufacturing magnetic particles from a silicon oxide-iron core-shell structure
US9994949B2 (en) * 2014-06-30 2018-06-12 Regents Of The University Of Minnesota Applied magnetic field synthesis and processing of iron nitride magnetic materials
JP6519419B2 (ja) * 2015-09-10 2019-05-29 Tdk株式会社 窒化鉄系磁性粉末及びそれを用いたボンド磁石
JP7338529B2 (ja) * 2020-03-24 2023-09-05 Tdk株式会社 流動性付与粒子および磁性コア

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0582326A (ja) * 1991-09-19 1993-04-02 Mitsubishi Materials Corp 軟磁性粉末の製造法
SE9402497D0 (sv) * 1994-07-18 1994-07-18 Hoeganaes Ab Iron powder components containing thermoplastic resin and methods of making same
US5605752A (en) * 1994-09-28 1997-02-25 Victor Company Of Japan, Ltd. Magnetic recording medium containing magnetic powder of iron nitride
JP3932326B2 (ja) * 1998-05-22 2007-06-20 Ｄｏｗａエレクトロニクス株式会社 窒化鉄磁性材料の製法
JP3848486B2 (ja) * 1999-03-25 2006-11-22 日立マクセル株式会社 磁気記録媒体用窒化鉄系磁性粉末材料及びその製造方法並びに磁気記録媒体
GB0117326D0 (en) 2001-07-16 2001-09-05 Univ Aberdeen Napthoquinone-type inhibitors of protein aggregation
WO2003079332A1 (fr) * 2002-03-18 2003-09-25 Hitachi Maxell, Ltd. Support d'enregistrement magnetique et cartouche d'enregistrement magnetique
CN1224590C (zh) * 2002-05-22 2005-10-26 吉林大学 一种复合磁性粒子的制备方法
JP3864339B2 (ja) * 2002-07-05 2006-12-27 日立マクセル株式会社 磁気テープ
JP2004076080A (ja) 2002-08-14 2004-03-11 Tosoh Corp 配線用薄膜およびスパッタリングターゲット
US6964811B2 (en) * 2002-09-20 2005-11-15 Hitachi Maxell, Ltd. Magnetic powder, method for producing the same and magnetic recording medium comprising the same
WO2004075179A1 (ja) * 2003-02-19 2004-09-02 Hitachi Maxell, Ltd. 磁気記録媒体
JP4547527B2 (ja) * 2003-05-08 2010-09-22 Ｄｏｗａエレクトロニクス株式会社 磁性粉末およびそれを用いた磁気記録媒体並びに磁性粉末の表面処理法
EP1548760A3 (en) * 2003-11-27 2007-12-26 DOWA Electronics Materials Co., Ltd. Iron nitride magnetic powder and method of producing the powder
JP4734599B2 (ja) * 2004-08-02 2011-07-27 Ｄｏｗａエレクトロニクス株式会社 耐候性の良い窒化鉄系磁性粉末およびその製造法

Also Published As

Publication number Publication date
CN1792509A (zh) 2006-06-28
CN1792509B (zh) 2011-08-03
US20060131537A1 (en) 2006-06-22
US7314666B2 (en) 2008-01-01
JP2006179567A (ja) 2006-07-06
EP1675135A1 (en) 2006-06-28
DE602005012223D1 (de) 2009-02-26
EP1675135B1 (en) 2009-01-07

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