JP5978201B2 - 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法 - Google Patents

磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法 Download PDF

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Publication number
JP5978201B2
JP5978201B2 JP2013272726A JP2013272726A JP5978201B2 JP 5978201 B2 JP5978201 B2 JP 5978201B2 JP 2013272726 A JP2013272726 A JP 2013272726A JP 2013272726 A JP2013272726 A JP 2013272726A JP 5978201 B2 JP5978201 B2 JP 5978201B2
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Prior art keywords
magnetic
magnetic recording
magnetic powder
powder
hexagonal ferrite
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Japanese (ja)
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JP2015127985A5 (enExample
JP2015127985A (ja
Inventor
白田　雅史
雅史 白田
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Fujifilm Corp
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Fujifilm Corp
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Priority to JP2013272726A priority Critical patent/JP5978201B2/ja
Priority to US14/584,568 priority patent/US9589584B2/en
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Classifications

    • 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
    • G11B5/70642—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 iron oxides
    • G11B5/70678—Ferrites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • 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
    • H01F1/113—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 in a bonding agent
    • 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.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP2013272726A 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法 Active JP5978201B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2013272726A JP5978201B2 (ja) 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法
US14/584,568 US9589584B2 (en) 2013-12-27 2014-12-29 Magnetic powder for magnetic recording, magnetic recording medium, and method of manufacturing magnetic powder for magnetic recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013272726A JP5978201B2 (ja) 2013-12-27 2013-12-27 磁気記録用磁性粉、磁気記録媒体、および磁気記録用磁性粉の製造方法

Publications (3)

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JP2015127985A JP2015127985A (ja) 2015-07-09
JP2015127985A5 JP2015127985A5 (enExample) 2015-08-27
JP5978201B2 true JP5978201B2 (ja) 2016-08-24

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US (1) US9589584B2 (enExample)
JP (1) JP5978201B2 (enExample)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6556087B2 (ja) * 2016-03-31 2019-08-07 富士フイルム株式会社 六方晶フェライト粉末、磁気記録媒体および六方晶フェライト粉末の製造方法
CN110402238B (zh) * 2017-03-31 2022-11-29 保德科技股份有限公司 铁氧体粉末、树脂组合物及成型体
CN107151136A (zh) * 2017-05-17 2017-09-12 马鞍山起劲磁塑科技有限公司 一种高品质注塑用锶铁氧体磁粉的制备方法
EP3528252A1 (en) 2018-02-20 2019-08-21 Fujifilm Corporation Magnetic tape cartridge
US11488627B2 (en) 2018-03-20 2022-11-01 Fujifilm Corporation Ferromagnetic powder for magnetic recording and magnetic recording medium
JP6872572B2 (ja) * 2018-03-20 2021-05-19 富士フイルム株式会社 磁気記録用強磁性粉末および磁気記録媒体
KR102424753B1 (ko) 2018-08-28 2022-07-22 후지필름 가부시키가이샤 마그네토플럼바이트형 육방정 페라이트의 분체와 그 제조 방법, 및 전파 흡수체
EP3846185B1 (en) 2018-08-28 2025-01-01 FUJIFILM Corporation Method for producing powder of magnetoplumbite-type hexagonal ferrite and method of producing radio wave absorber
US11514940B2 (en) 2018-09-14 2022-11-29 Fujifilm Corporation Magnetic recording medium and magnetic recording and reproducing device
JP6893952B2 (ja) * 2018-09-14 2021-06-23 富士フイルム株式会社 磁気記録媒体および磁気記録再生装置
JP7077241B2 (ja) * 2019-01-11 2022-05-30 富士フイルム株式会社 六方晶ストロンチウムフェライト粉末、磁気記録媒体および磁気記録再生装置
JP7105202B2 (ja) * 2019-01-16 2022-07-22 富士フイルム株式会社 マイクロ波アシスト記録用磁気記録媒体、磁気記録装置、および磁気記録媒体の製造方法
CN113498539B (zh) 2019-03-13 2022-10-21 富士胶片株式会社 记录装置、读取装置、记录方法、记录程序、读取方法、读取程序及磁带
CN113508431B (zh) 2019-03-13 2022-09-30 富士胶片株式会社 记录装置、读取装置、记录方法、记录程序、读取方法、读取程序及磁带
EP3971921A4 (en) 2019-05-14 2022-08-03 FUJIFILM Corporation Radio wave absorber and compound
CN113812043B (zh) 2019-05-14 2023-12-01 富士胶片株式会社 电波吸收体
WO2020230709A1 (ja) 2019-05-14 2020-11-19 富士フイルム株式会社 電波吸収体
WO2020230680A1 (ja) 2019-05-14 2020-11-19 富士フイルム株式会社 電波吸収体
JP7427004B2 (ja) 2019-08-09 2024-02-02 富士フイルム株式会社 電波吸収性組成物および電波吸収体
CN110526703A (zh) * 2019-10-17 2019-12-03 哈尔滨理工大学 一种阳离子联合取代的m型锶铁氧体磁性材料及其制备方法
CN114599587B (zh) * 2019-11-05 2025-05-13 株式会社Ｑｐｓ研究所 航天器
JP7247128B2 (ja) 2020-01-31 2023-03-28 富士フイルム株式会社 磁気テープ、磁気テープカートリッジおよび磁気テープ装置
JPWO2024162177A1 (enExample) * 2023-01-31 2024-08-08

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JPH069167B2 (ja) * 1985-06-03 1994-02-02 ソニー株式会社 六方晶系フエライト粒子粉末の製造方法
JPH0688795B2 (ja) * 1986-04-11 1994-11-09 石原産業株式会社 磁気記録用強磁性微粉末の製造方法
JP2779935B2 (ja) * 1987-07-22 1998-07-23 戸田工業 株式会社 磁気カード用マグネトプランバイト型フェライト粒子粉末及びその製造法
JP2777044B2 (ja) * 1993-04-19 1998-07-16 日産化学工業株式会社 バリウムフェライト微粒子の製造方法
JP3628354B2 (ja) * 1994-08-02 2005-03-09 株式会社東北テクノアーチ バリウムフェライト微粒子の製造方法
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JP4644535B2 (ja) * 2004-06-21 2011-03-02 富士フイルム株式会社 六方晶フェライト磁性粉末の製造方法および磁気記録媒体の製造方法
JP5645865B2 (ja) 2012-03-30 2014-12-24 富士フイルム株式会社 六方晶ストロンチウムフェライト磁性粉末およびその製造方法、ならびに磁気記録媒体およびその製造方法

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JP2015127985A (ja) 2015-07-09
US9589584B2 (en) 2017-03-07

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