JP7691068B2 - 複合磁性粉体及びその製造方法 - Google Patents

複合磁性粉体及びその製造方法 Download PDF

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Publication number
JP7691068B2
JP7691068B2 JP2021572761A JP2021572761A JP7691068B2 JP 7691068 B2 JP7691068 B2 JP 7691068B2 JP 2021572761 A JP2021572761 A JP 2021572761A JP 2021572761 A JP2021572761 A JP 2021572761A JP 7691068 B2 JP7691068 B2 JP 7691068B2
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Japan
Prior art keywords
iron
magnetic
additional element
magnetic powder
compound
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Japanese (ja)
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JPWO2021149717A5 (https=
JPWO2021149717A1 (https=
Inventor
篤哉 砥綿
公洋 尾崎
章宏 松本
潤 寺川
健 高橋
克紀 前嶋
実 山鹿
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.)
National Institute of Advanced Industrial Science and Technology AIST
Sony Corp
Sony Group Corp
Original Assignee
National Institute of Advanced Industrial Science and Technology AIST
Sony Corp
Sony Group Corp
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • 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
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/78—Tape carriers
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
JP2021572761A 2020-01-21 2021-01-20 複合磁性粉体及びその製造方法 Active JP7691068B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020007833 2020-01-21
JP2020007833 2020-01-21
PCT/JP2021/001830 WO2021149717A1 (ja) 2020-01-21 2021-01-20 複合磁性粉体及びその製造方法

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JPWO2021149717A1 JPWO2021149717A1 (https=) 2021-07-29
JPWO2021149717A5 JPWO2021149717A5 (https=) 2024-01-12
JP7691068B2 true JP7691068B2 (ja) 2025-06-11

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WO (1) WO2021149717A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116230350A (zh) * 2023-04-10 2023-06-06 江苏南方永磁科技有限公司 一种烧结钕铁硼磁体材料及其制备方法
CN117548684B (zh) * 2023-11-14 2025-09-23 哈尔滨工程大学 一种中空核壳结构Co@SiO2@PPy的制备方法和应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011035006A (ja) 2009-07-29 2011-02-17 Tdk Corp 磁性材料及び磁石、並びに磁性材料の製造方法
JP2018110168A (ja) 2016-12-28 2018-07-12 国立研究開発法人産業技術総合研究所 磁性粒子およびその製造方法
JP2018182301A (ja) 2017-04-12 2018-11-15 キヤノン株式会社 複合磁性材料、およびモータ
JP2019175532A (ja) 2018-03-29 2019-10-10 富士フイルム株式会社 磁気記録媒体、イプシロン型酸化鉄系化合物の粒子の製造方法、及び磁気記録媒体の製造方法
WO2020032031A1 (ja) 2018-08-10 2020-02-13 ソニー株式会社 磁性粉およびその製造方法、ならびに磁気記録媒体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011035006A (ja) 2009-07-29 2011-02-17 Tdk Corp 磁性材料及び磁石、並びに磁性材料の製造方法
JP2018110168A (ja) 2016-12-28 2018-07-12 国立研究開発法人産業技術総合研究所 磁性粒子およびその製造方法
JP2018182301A (ja) 2017-04-12 2018-11-15 キヤノン株式会社 複合磁性材料、およびモータ
JP2019175532A (ja) 2018-03-29 2019-10-10 富士フイルム株式会社 磁気記録媒体、イプシロン型酸化鉄系化合物の粒子の製造方法、及び磁気記録媒体の製造方法
WO2020032031A1 (ja) 2018-08-10 2020-02-13 ソニー株式会社 磁性粉およびその製造方法、ならびに磁気記録媒体

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